DE1086921B - Adding machine - Google Patents

Description

GERMAN

The invention relates to a key-operated table-top electric calculator with counters that count through electrical impulses can be switched.

With the usual table or office calculating machines, the numerical values are entered by pressing a button, the calculation operation is carried out by mechanical means. There are already such things Calculating machines described in which the mechanical means are at least partially by appropriate electrical equipment has been replaced.

In a known embodiment of such a calculating machine, the actuation of a key a corresponding contact of a contact bank is energized. The next step will be this selected contact sought by a switch arm, at the same time a corresponding to the value of the button Number of pulses can be generated, which are then fed to an electromagnetic arithmetic unit will.

In another known calculating machine, there is one with control disks for all keys of the full keyboard There is a busy shaft that controls contacts that correspond to the values 0 to 9. The number wheels of the counter are uncoupled from the shaft on this machine if it has been turned one further which corresponds to the key pressed in the assigned key row.

A machine for punching punch cards is also known, one of which is scanned by a rotating brush Contains contact bank. The individual contacts of the contact bank are through the keys of a row of keys operable switches connected, which are connected to a terminal on a common bus are. When the contact bank is scanned by the rotating brush, a A single pulse is generated, the timing of which corresponds to the value of the key pressed. Can to the collecting line the device for punching the cards or a counter must be connected.

Furthermore, calculating machines are known which contain ring counters as pulse generators, which are equipped with a corresponding to the highest digit occurring in one place Number of gastriodes are equipped. By pressing a button, the corresponding tube is in the ring counter ignited, which then delivers a number of pulses corresponding to the value of the button.

It is also, already known, with fast-working electronic counters and display the value stored in them by means of a display wheel that is controlled electromagnetically by a brush scanning a contact bank.

In the known constructions, either the effort is too great or the operational reliability is too small to to a usable, reliable and nevertheless calculating machine

Applicant: Bell Punch Company Limited, London

Representative: Dr.-Ing. E. Sommerfeld, patent attorney, Munich 23, Dunantstr. 6th

Claimed priority:

Great Britain 6 September 1956, 22 November 1956 and 3 July 1957

Norbert Kitz, Vernon Watkins Sparrow, Christopher Frederick Webb and Robert Milburn,

London,
have been named as inventors

affordable office calculating machine. The invention is intended to avoid these disadvantages.

as The calculating machine of the invention is characterized by special simplicity and operational reliability, so that the construction of a very inexpensive calculating machine is possible in which the mechanical means for performing the arithmetic operations are largely electrical are replaced.

A calculating machine with counters which can be incremented by electrical pulses which are supplied by a scanning device containing a contact bank, furthermore with a switching device which can be actuated by the keys and through which certain contacts of the scanning device can be switched through so that when scanning a ^; Connection between a voltage source and a counter is established, is characterized according to the invention in that a group of contacts, the number of which corresponds to the key pressed in the respective position, can be switched through by pressing a key for all positions simultaneously, and that furthermore those assigned to the respective positions Contact groups are then all connected in places one after the other by the scanning device with the associated counters and that a carry-over that has arisen in one position is fed to the counter of the next higher level before the contact group assigned to this position is connected to its associated counter. ..-- .. -

The invention is now based on a practical training; example in connection with the drawing · closer

be explained, means. ' · ^;

Fig. 1 is a schematic representation of the electrical

Circuit of a calculating machine according to the invention, ¹

009 570/213

3 4

Fig. 2 is a circuit diagram of an electronic step switch piece O ₅ between the contact pairs K \ and Kl, the

tube with the associated circuit, as in the contact piece O ₆ between] the contact pairs K \ and K \,

Machine according to Fig. 1 can be used, the contact piece O ₇ between the contact pairs K \ and

Fig. 3 is a partially sectioned plan view of K \ and finally the contact piece O ₈ between the

a machine according to the invention, 5 contacts K \ and K \ is switched on.

Fig. 4 is a partially sectioned side view. The pair of contacts K \ is connected to a terminal CS \

the machine according to Fig. 3, a two-way switch CS ^ connected, while the con-

Fig. 5 and 6 partial representations of the machine after clock pairs S \ to SJ in parallel at the other connection CS \

Fig. 3 and 4, the two-way switch CS ₁ are.

7 to 10 show a display device as used in the case of the anode Tf of a tube T ₁ via the connection

described embodiment are used CS \ of the two-way switch CS ₄ to the "S" -contact pairs

can. the first row of keys is switched and a key of the

In the circuit diagram of FIG. 1, a first row of keys is schematically printed, a number of

Calculating machine shown, the twelve rows of keys ent- Contact pieces corresponding to the number that was pressed

holds. Each row of keys comprises nine keys, each key represents 15 keys, energized, while then,

designed in such a way that when the key is pressed, a to this when the anode T \ of the tube T ₁ via the connection CS%

Button belonging contact pair closed and a second, the two-way switch CS ₄ with the "i?" - contact pairs

pair belonging to the same key is opened. The two is connected and a key in the first row of keys is

Contact pairs of the individual rows of keys are pressed, a number of contact pieces below

hereinafter referred to as "S" and "i £" contact pairs. The 20 voltage set is that of the nines complement of the

Individual contact pairs are indicated by two indices that correspond to the number that the pressed key bears. It is

differentiated, the one index gives the row of keys, that if there is no key of the row of keys

to which the contact pair belongs, the other index that is pressed, all nine contact pieces of this row below

Number of the key in the corresponding row. The contact voltage stand, while when button no. 1 one

Pairs S \ and K% are the contact pairs of the first 25 key row is printed, eight contact pieces below

Button in the third row of buttons. Each group of nine stand tension, i. H. one less than the total

Contact pairs of a row of buttons is in a way that of the contact pieces.

will be described in more detail later, with nine The arrangement described above makes it possible to

Contact pieces connected, the z. B. as printed probably additions as well as subtractions by lowering

Circuit or as a series of contacts designed to perform 30 pressing the button that bears the number that

can be added or subtracted when embedded in a suitable material; this eliminates the

or in any other suitable manner circular- need to provide keys with two numbers of

shaped on the end face of a contact plate which one is the complement of the other, what has been done so far

are. was necessary to the operator at a subtraction

To conduct the contact pieces 35 belonging to the first row of keys.

are labeled O ₀ to O ₈ , the contact pieces. The arrangement described above applies to all twelve

the second row of keys are labeled P ₀ to rows of keys on the machine.

P ₈ , that of the third row Q ₀ to (J ₈ , that of the fourth row. Each contact piece group has a parallel R ₀ to A ₈ etc. for twelve rows of keys, so that the contact-arranged slip ring segment O ₉ , P ₉ , Q ₉ , R ₉ etc. up to pieces of the eleventh and twelfth row of keys bear the designations 40 Y ₉ and Z _9. Between two adjacent groups of nines, Y ₀ to Y ₈ or Z ₀ to Z _{8 respectively 0} to O ₈ P ₀ to P ₈ O ₀ to _Q, etc., can in an inventively constructed computing to F ₀ to Y ₈ and Z ₀ to Z ₈ are respectively three contact machine includes twelve rows of keys and for accounting pieces C, B and A. Each contact piece arrangement is designed according to the decimal system, a pair of C and B works with a corresponding pair C ₁ desired number of the nine contact pieces of any one, 45 and B ₁ , the row of keys required in front of the respective slip ring by pressing the relevant segments O ₉ , P ₉ , Q ₉ , R _s """etc. Arranged until _{Y 9} and Z ₉ the key of the corresponding key row are selected (ie to the right of the right end when one looks at the. The number of contact pieces that is selected Rg. l), while the contact pieces A in one, depends on it whether the machine is set to add or line with the front end (ie the right end subtraction. In the case of an addition, 50 is part of the respective grinding the number of contacts that are selected , the ring segments O ₉ to Z ₉ lie. Furthermore, in front of (ie the same as the number to which the actuated key corresponds to the contact piece O ₀ in FIG. 1) _{is in front of the contact pieces O 0,} while in the case of a subtraction, the number of the out to O ₈ and in a line with the front end (ie, the selected contact is the nine's complement of that of the right-hand end in Figure 1) of the number corresponding to _{the slip ring segment O 9 key.} 55 of the first row of keys a contact piece D is arranged,

From Fig. 1 it can be seen that the arrangement of the "S" - and at which there is a negative voltage when the switching "X" contact pairs in the first row of keys so hit ter CS _{1 is} the position shown in the drawing that the contact pairs S \ to SJ are all taken in parallel, whereby the machine is then switched on for subtractions, while the contact pairs K \ to K \ in is aligned.

Are connected in series with each other and also in series with 60. The slip ring segments O ₉ to Z ₉ are each with

the contacts S \ to S \ connected in parallel. Summing devices O ₁₀ to Z ₁₀ connected by

The contact pieces assigned to the first row of keys are actuated by electrical pulses; every total

are designated with O ₀ to O ₈ and switched so that the direction is in turn via a diode O ₁₁ to Z ₁₁ or

first contact _{piece O 0} in series with the contact pair S \ another electronic directional conductor with a

lies, while the remaining contact pieces O ₁ to O ₈ 65 busbar / connected.

are connected so that the contact piece O ₁ between the front of the contact group O ₀ to O ₈ and the associated

Contact pairs K \ and K \, the contact piece O ₂ between slip ring segment O ₉ (ie to the right of the one on the right

the contact pairs K \ and K \, the contact piece O ₃ contact piece O ₀ and to the right of the right end of the

between the contact pairs K \ and K \, the contact _{piece slip ring segment O 9} in Fig. 1), but not necessary

O ₄ between the contact pairs K \ and K \, the contact 70 digerweise in line with the said group of

5 6

Contact pieces and the slip ring segment, one of the different rows of keys is connected. If there pair disposed of contact pieces EE, which is so, against the movable terminal CSF of Zweiwegdaß will be coated by a rotatable brush F switch CS is ₄ at the contact CSl, the anode T [is capable of rotating continuously and each Contact tube T ₁ connected directly to the »ife contact pairs of the paired or a contact and a slip ring segment S different rows of keys,
can short-circuit that it bridges. The brush F It can be seen that all contact pieces O ₀ -O _s up to

can normally be at the potential 0 during their rotation over the groups of Z ^ -Z ₈ , which belong to the different rows of keys, contact pieces O ₀ -O ₈ to Z ₀ -Z ₈ and the slip ring, while through segments O ₉ to H of the various rows of keys, the contact pairs C, C ₁ and B, B ₁ , when they pass through the and the associated contact pieces and io brush F are bridged, one after the other bridging a positive slip ring segment. The brush F is too potential from M to the triggering electrode T \ of the tube T _{9, in} addition, the contact pieces A and the and the cathode T \ of the tube T _{3 is} placed. The contact pieces SS ₁ and CC _{1 of} the individual key voltage supplied to the associated slip ring segments O ₈ to H and the cathodes of the tubes T ₁ , T ₂ , T ₃ , T ₄ and T ₉ are, for example, as indicated in FIG. 1, rows to bridge. 15-300 V. The anode Tl of the tube T ₁ and the anode T \

The contact pieces C and B, which are arranged in front of each group O ₀ -O _{8 of} the tube T ₁ with anode resistors T [ or T \ up to Z ₀ -Z ₈ , are connected to the release element, which are dimensioned so or that connected to the antrode to them Tl of the tube T to the cathode ₉ Tl the closed contact pieces, a potential of -150 V T tube _8, while the contact pieces is C _1, when the tubes T ₁ and T ₁ are derived,
and B ₁ , which are in front of the corresponding slip ring segments 20. A summing device H ₁₀ (accumulator) is connected to O ₉ to Z ₈ , with a source M of positive potential, a slip ring segment H , which is not connected. Row of keys is assigned; the function of the accumulator

The contact pieces A in front of the front contact latorsii _{1 (} , consists only of the _{contact pieces, ie P 0} , Q ₀ , R ₀ etc. up to Y ₀ and Z ₀ , with piece A between the contact series Z ₀ -Z ₈ and 0 ₀ -0 _{S are connected to} the anode T \ of a tube T _1. The tubes T ₃ 25 optionally receive a carry which is _{output from the counter Z 10} and T ₁ are as a two-stage carry memory.

educated. One of the contacts EE is connected to a device in front of the contact pieces EE (ie on the right in FIG. 1)

connected device for generating a single pulse, a pair of contacts G-G is arranged; One of these con -which contains a capacitor U ₄ , which is normally clocked with the positive pole of a voltage source, via a common contact U ₁ and a con 30 the other with the trigger electrode T \ of the tube T ₂ clock U _{2 of} a two-way switch U connected to a power source.

is connected to charge the capacitor U ₄ . When When the machine is switched on, but no button

if the common contact JJ ₁ is pressed from contact U ₂ in the various rows of keys, leads lifts and _{touches contact U 3} , the capacitor will power the tubes T ₂ and T ₉ , which is connected to the above-mentioned contacts EE by hatching, is indicated over 35, while the tubes T ₁ , T _s and T ₁ which are blocked when they are short-circuited by the brush F. The circuit arrangement of the tubes T ₁ is a positive pulse to the trigger electrode T \ der and T ₂ is made so that the tube T _{1 is} blocked, tube T _{1 is} placed. when the tube T ₃ conducts, and vice versa.

The contact pieces O ₀ -0 _s up to Z ₀ -Z ₈ and the ent- The machine is constructed so that in the case of an addition

Talking slip ring segments O ₉ to H, which belong to the 40 or subtraction after depressing any row of keys, are circular and a motor is arranged concentrically on a contact plate for the key in one of the rows of keys. The moving parts drives, automatically switched on brush F is concentric to the contact pieces and is. The motor turns the contacts U ₁ and U _{3 into} the slip ring segments, so that when turned after the device for generating a single pulse, the contact pieces O ₀ -O ₈ up to Z ₀ -Z ₈ and the 45 are closed, and the capacitor U ₁ is bridged with the associated slip ring segments O ₉ to ff. connected to one of the contacts EE .

The contact pieces O ₀ -O ₈ up to Z ₀ -Z ₈ and the contact It should be assumed that the brush F, the

Pieces C, B, A and the slip ring segments O ₉ to Z ₉ to rotate as a result of switching on the motor and the associated contact _{pieces C 1} , B ₁ are in the beginning, first the contacts EE bridged and da-drawing as in a line with the brush F lying 5o represented by a positive pulse through the contacts CSl , which then lies over the contact pieces and and CSi of the two-way switch CS ₅ to the Auslöseelek slip ring segments on a straight path from the left trode T {of the tube T ₁ , whereby the tube T _{1 is} moved to the right. conductive and the tube T _{2 is} blocked. As in the previous

It can be seen that the trigger electrode TJ mentioned the standing, so the potential of the anode Tf tube R _{1 is} fed a positive pulse when the 55 of the tube T ₁ depending on the position of the common brush F, the contacts EE with the contacts U ₁ and U ₃ circuit of the two-way switch CS ₁ directly the "S" - or connects and the capacitor U _{4 is connected} to one of the "X" contacts of the various rows of buttons E is connected. The tube T ₁ is fed with one.

Interconnected tube T ₂ , which normally carries electricity. When you continue to run, the brush F bridges the cone. The cathode T? The tube T ₁ is connected to the cathode TIi 6σ clock CC ₁ , whereby a positive potential from the other tube T ₂ , while the anodes T \ and 1% connection M to the triggering electrode Γ9 of the tube T _{6 of} the tubes T ₁ and T ₂ passed through a capacitor U ₈ ; however, since the tube T ₉ normally conducts, are tied. The tubes T ₁ and T ₂ are connected in such a way that this has no influence. When you continue to run, the that the tube T ₁ conducts, if the tube T _{8 is} blocked, brush F bridges the contacts BB ₁ , creating a positive and vice versa. 65 Voltage from terminal M to cathode T \ der

The anode T \ of the tube T ₁ is connected to the movable tube T ₃ ; however, since the tube T _{3 is connected} in this contact CS \ of the two-way switch CS _A. In the moment is blocked, the supply is a positive one position, the anode T \ of the tube T _{1 is} over voltage without influence. It can be seen that in the case of the movable contact CS \ and the contact CSf of this part of the operating cycle the transmission device two-way switch CS ^ with all the "S" contact pairs 70, which contains the tubes T ₃ , T ₄ and T ₉ , clarified or

■ ?. 8th

has been postponed. In the course of their movement devices are designed so that when changing from the brush F bridges a contact!) And the 9 to 0 by the summing device single pulse over a front end (in Fig. 1 on the right) of the slip ring segment diode or another O _{g conductive only in one direction} , which is at negative potential when the electron tube, which is associated with the summing device movable contact CS \ of the two-way switch CS ₄ at 5, is fed to a busbar /, from which contact CS \ is, while contact D is dead, it is connected to the Trip electrode Tf of tube T ₃ arrives when the movable contact CSf of the two-way switch duich this becomes conductive. When turning further, CS _{4 is} bridged at contact CSf. the brush F the contacts BB ₁ , whereby a positive The purpose of the contact D will be explained in the explanation of the voltage from the terminal M to the cathode Tl of the subtraction. i ° tube T ₃ arrives, whereby the tube T _{3 is} blocked and when the brush F continues to move over the cone, the tube T ₄ becomes conductive. The tubes T ₃ and T ₄ are so clocked O ₀ to O _{8 of} the first row of keys, every potential is connected to each other that when the tube T _{3 is blocked, the tube T 4} becomes conductive at one contact or at a certain number (among all other conditions of contacts in the first row of keys as a result of the actuation, T ₃ and T ₁ do not influence one another). From this it is possible to find a key, in the form of a pulse or 15, that the slip ring segment O _{9 is} fed to the slip ring segment O 9 when a pulse is transmitted from a pulse; from summing device to the busbar / to which the pulse or pulses arrive there to the contacts that belong to the slip ring segment of the next summing device O ₁₀ and register a higher row in this, a potential is placed, thereby, number that corresponds to the number of pressed key of the first that T ₄ conducts; as a result, the summing device button row is matched. ao processing of the next higher order a unit is added, the further running of the brush F causes that this before the brush F begins, the button-controlled Kon contacts CC ₁ closes, the contacts P ₀ to P _{8 to} scan the clock pieces of the next row. It is clear beforehand that the key row assigned to the second row shows that the tube T _{9 was} blocked while they are. By bridging the contacts CC ₁ , tube T _{4 is} conducted.

a potential of the trigger electrode Tg of the tube T ₉ <* 5 It can further be seen that after the transfer

fed, which remains conductive or in the conductive state of a carry pulse from the tube T ₄ and before the

is fed back, depending on whether a carry over from contact pieces of the next higher row from the brush F

was to be fed or not. In the event of a transfer, scanning will be carried out and the tube T _{4 will} be blocked

T ₄ conductive by deleting T _3. When the brush F that the tube T ₉ as a result of bridging the contacts

the contacts BB ₁ bridged, those of the second contact 3 <> CC ₁ , those between the row of contacts that have just been scanned

row P ₀ to P ₈ precede remains just as with the one and the three that will be scanned next,

first row the tube T ₃ non-conductive. When the brush F becomes conductive.

to P ₈ slides ₀ through the contacts of the second row P, in case of the further movement of the brush F will be the potential of the anode T \ of the tube T set ₁ contacts -BS ₁ bridged and the tube T has been clarified _3, a Pulse or pulses are made over the 35 and ready to receive a further carry pulse slip ring _{segment P 9 of} the summing device P _{} 0} which, if one should arise, is supplied during the second row of keys and the brush F registered in the second via the first contact of the next higher counter Value changed by an amount that slides series. The tube T ₄ is only conductive after the value corresponds to the pressed key. The tube T _{3 was} made conductive by a carry pulse from the - The further movement of the brush F over the following 4 ° busbar / and then contact rows Q _{0 -Q 8} up to -Z ₀ -Z ₈ changes the values of the via a pulse the contacts BB ₁ to the following counter 0. ₁₀ to Z ₁₀ by numbers that were blocked again in the cathode. . The tubes speaking rows of keys operated "buttons are similar to T ₃ and T ₄ may be the brush F off a complete revolution considered memory, which has the Summiereinrichtungeführt ie as a two-When transmitting, it bridges the contacts GG; by 45 gen all · A series of summing devices is common to a positive voltage of the trigger electrode T ^ sam.

the tube T _{2 is} fed, whereby the tube T ₂ conducts and As already mentioned, the buttons of the individual the tube T _{1 is} locked. Rows of keys are operated in such a way that when they are pressed • When the totalizing device of a row of keys reaches the corresponding "S" contact pair according to the maximum numerical value for which this totalizing 50 is closed * and the "i £" contact pair is opened. It is device is designed, according to the present it can be seen that in the first row of keys when pressing the invention, a unit in the summing device of the third key, the contacts S \ closed and the next higher row transferred. This will essentially open contacts K \ and, provided that borrowed is achieved in that a two-stage transmitter common connection CS \ of the two-way switch CS _A supply memory is provided, which is connected to the contact CS1 in front of the contact pairs 55 ", after the over- B-JB ₁ and CC ₁ each contains a contact piece A , the bridging ^{; the} contacts E ^ E through the brush F a in a straight line with the front end of the associated potential from the anode T \ the ROhIeT ₁ over a slip ring segment Z is arranged and the potential of the third pair of contacts S3 and the contacts K \, K \ and K \ leads, when the summing device of a row is placed on the contact pieces O ₀ , O ₁ and O ₂ , which reaches the maximum capacity has, and by 60 scanning through the brush F _{three pulses to the device that is fed to the commutator segment O 9} and from there to the summing-summing device of the next higher row as a result of the applied potential O _{10 is} transmitted, whereby this is summed up. The arrangement according to the present invention device O _10, the value 3 is set, provided that ■ is such that each between two rows of contacts - that the summing device was initially at 0,
pieces O ₀ -O ₈ up to Z ₀ -Z ₈ contact A at 65 If the switch CS _{1 is} so that the moving voltage "is applied when the summing device, the contact CS4 and the contact CS \ are closed, the previous one Row has reached the maximum number, for obviously the anode T \ of the tube T ₁ directly with which it is designed. In the arrangement of Pig. 1 is connected to "" i £ "contact pairs and not with the assumption that the summing devices O ₁₀ to Z ₁₀ store" i £ "contact pairs via the" S "contact pairs; as a sequence according to the decimal system ° of which is when a key is pressed, for example

9 10

of the second key of the first keystroke, the K \ ters switches are designed in such a way that they continuously slide over the permanently opened contacts and a potential to the last seven contacts. When the moving, pieces are placed, ie the contact pieces O ₈ to O ₂ , whereby the rotating contact touches a fixed contact, with when the brush F is scanned via these contact pieces which a glowing cathode of the stepping tube seven pulses are connected to the slip ring segment O ₉ and thus 5 is, and these are fed to the _{summing device O 10 for a sufficient time.} In the ignition remains, a blocking relay that looks into the circuit that the first contact piece D is the contact of this contact of the rotary switch is activated, piece row, which is assigned to the first row of keys, from the voltage from the glow cathode Step switch the same line is fed as the seven contacts tube is amplified, in order to activate the blocking relay O ₈ to O ₂ , an additional pulse of the summing input 10 can be effected. If the blocking relay is supplied with current in the direction of O ₁₀ , when the brush F is placed over the contact, it causes the rotary switch to slide in the clock position D and the commutator segment O ₉ . As is recorded, in which he with the to the smoldering sequence of it, the summing device O _{10 has} the number 8 cathode connected switch contact, which is equal to the tens complement of the number of so long until the cathode goes out, whereupon the blocking relay actuated key is, of course, provided that the 15 is de-energized and the rotary switch is released and its summing device was previously set to 0. From this the rotary movement resumes, the rotating one can be seen that by setting the switching contact or the rotating contacts of this rotary switch CS _t in the desired of its two positions possible ters continue to move until it is again a smoldering one, either additions or Perform subtractions, cathode arrive. This continues until the counting number is reached without the keys which, when subtracted to the speed of the step switch tube, are operated at least from the speed to be operated when adding, which the eye can follow.
Keys must distinguish. In addition, it is easy to see that in the remaining rows, the nine's switch for the first live complement and not the ten's complement is the contact that is connected to a glowing cathode. Summing devices is added when a sub- _a5 is stopped, provided that the traction is carried out. The glow discharge rests for such a long time that the

Instead of the three tubes T ₉ , T ₄ and T ₃ , locking relays can also be operated.

only two tubes T ₃ and T ₄ are used; In this the rotatable contact is with a flanged case, the tube T _{9 can} fall, while otherwise the switch-provided number wheel is connected, which revolves with it processing arrangement corresponds to that drawn in FIG. 30 and that has the numerals 0 to 9 on its flange surface. Such an arrangement ensures that the tube T _{supports 3} . The number wheel is placed behind the housing of the rake in the shortest possible period of time after receiving a machine, which is seen with suitable openings pulse from the busbar / another pulse. The number wheel is so received behind the housing, because the first pulse from the tube T ₄ assigns that the number of the fixed contact at which was taken. The tube T ₉ serves as a means to keep the rotatable contact stopped in the opening of the tube T _4. of the housing appears. The display according to the invention has so far caused considerable difficulties, so the device contains a rotatable contact, the results stored in electronic devices are controlled by the voltage output by a glow cathode of a step switch on display devices such as the number tube, so that the wheels of Calculating machines, transfer; This difficulty 40 associated with this cathode due to the abovementioned abilities are based on the one hand in the amount of the necessary number wheel, which is made visible in a conveniently readable way, which is used to actuate such mechanics.

nischer devices is necessary, and on the other hand the summing device shown in Fig. 4 contains at the relatively slow speed, with a number wheel 70, which beats the numbers 0 to 9 evenly such mechanical devices work, understood on the circumferential flange 300 (FIG. 8). That similar to the high speed electronic number wheel 70 is on a continuously rotating shaft Operations. 301 attached to the fishing practice by a drive belt 302 it was therefore necessary either which is driven around a pulley 303 on the to interrupt electronic operations to the shaft 301 and two pulleys 28 on a twin mechanical Display device the possibility of 50 rule shaft 29 a and finally a pulley 27 Setting to give, or the electronic processes (Fig. 4) leads. The pulley 27 lies on the sunk to slow down a speed, the comparative right shaft 25 of a motor 24. The shaft 301 carries bar with the working speed of mechanical to the thirteen number wheels that for a machine with twelve Pointing devices is when you need the result of a series of keys. The number wheel 70 (Fig. 8) carries electronic bill during a calculation process 55 on its one side a carrier disk 370, which on wanted to show ganges. a hub 371 of the number wheel 70 is attached. By the display device carrier disk 370 described below is vertung with a slot 372 (FIG. 9) a means is to be given by which to see, in which a pin 373 engages, which acts on an adjustment results of the fast electronic operations is easily attached to the plate 342 by means of a screw on the can be made accessible without having to attach 60 number wheel 70. On the carrier disk 370 must accept the disadvantages described above. are two pairs of connected Kon-Ein Procedure for achieving the above measures 311 and 312 as well as 314 and 315 are appropriate. Of the Purpose is then in connection with a contact 311 is arranged so that it is rotated when the step-wise adjustable electron tube described digit wheel successively the contacts of a set of that touches ten fixed contacts 316 to 325 (FIG. 10) at approximately 4000 counting steps per second 65, the is working. The main feature of the present invention are arranged in a circle and on a solid is that the fixed contacts of a rotating base plate 326 are so that the contacts 316-325 switch with the cathodes of an electronic stepper to the axis 301 of the number wheel 70 are coaxial, Switching tube are connected, while the movable while the contact 312 is arranged to have a Contact or the moving contacts of the rotary switch 70 fixed, circular slip ring 327, which is on the

11 12

Surface of the base plate 326 lies and coaxially decreased both from the shaft 301 to the spring 350, and

to shaft 301 as well as to the ten contacts 316-325 while shaft 301 continues to rotate

lies. The second pair of contacts 314 and 315 is either the number wheel 70, the ratchet wheel 341 and the spring 350

Arranged speaking and bridging a second sentence. When the circuit through which relay 339

of ten contacts 328 to 337, while an associated 5 was energized, is interrupted, the armature 340 is the

Slip ring 338 is arranged so that it is coaxial with tooth 360 free and thereby allows the spring 350

first set of contacts 316-325 and for grinding again to the shaft 301 and a torque

ring 327 is located. Each of the ten contacts of the two sets on the number wheel, ratchet wheel 341 and spring 350

of contacts 316 to 325 and 328 to 337, which is exercised in advance.

On the shaft 301 a bushing 361 is arranged one after the other on the cathodes of the stepping switch tube, which can be placed against the ratchet wheel 341 while each of the slip rings 327 has play, thus ensuring is that the pressure 338 and 338 via an amplifier, not shown, is connected to the contacts 311, 312, 314 and 315 on the right of a relay 339 (Fig. 7), which in the case of base plate 326 does not have any frictional forces between each number wheel 70 of each row of keys (Fig. 3) attached 15 ratchet wheel 341 and the base plate 326 is generated and thereby. The relay 339 is provided with an armature 340, which prevents the rotation of the ratchet wheel 341,
When the relay 339 is energized, the electronic indexing tubes used in the calculating machines according to the invention combine the ten teeth 360 of a ratchet wheel 341 with gas gripping, which is coaxial to the axis of the number wheel 70 and filled electron tubes (FIG. 2), which are normally resilient to this in a manner which subsequently have ten cathodes; if desired, however, it can be written, is appropriate. also use a larger number of cathodes

If you find a glow cathode of the associated step. A glow discharge upright plate 326 can be connected between a single anode and any switching tube with a contact on the fixed base cathode £ J to L \ and a pair can be held together.

connected contacts 311, 312 or 314 and 315, the 25 The glow discharge can be carried by a cathode on one of the carrier disk 370 and adjustable others are mounted on the number wheel, which is switched on by a suitable pulse series, which are energized. If you designate a cathode with no. 0, the standing contact and the associated slip ring, the adjacent cathode with cathode no. B. up to the cathode no. 9, ratchet wheel 341 through the armature 340 of the relay 339, which in 30 so it is possible to store any number corresponding to a corresponding tooth 360 of the ratchet wheel 341 including the number of the selected cathode,
intervenes, which corresponds to the glow cathode of the step-up switching tube. In this position lies the number of the inventive concept, it was assumed that each step dial, which corresponds to the number of the glowing cathode of the switching tube, has ten cathodes.
Step switch tube corresponds to, behind an opening in the electronic step switch tube of the he housing 320 (Fig. 4) of the machine, so that those of the calculating machine according to the invention are provided between the respective two cathodes of the step switch tube corresponding two cathodes, two auxiliary electrodes, which can be easily read in the number is. hereinafter referred to as guide electrodes £ 1 and 12

The display arrangement described is therefore intended to be of this type. The arrangement should be understood in this way

taken that the number wheel 70 can be continuously rotated 40, that if mentioned in the following for example

and is only recorded if the counting speed is that lead electrode £ 1 or lead electrode £ 2 short-

the step switch tube is small enough and should be made more negative than the cathode in time,

Pulses from the cathodes of the stepping tube slowly this applies to all lead electrodes L 1 and L 2 , since all

enough to energize relay 339 can. Guide electrodes Ll and all guide electrodes L 2 together

The drive between the number wheel 70 and the 45 are.

Shaft 301 contains a coil spring 350 (Figs. 7 and 8), normally the tension difference between

which is normally fixed on the axis 301 and held in the cathodes and the single anode larger than

driven in a counterclockwise direction, the voltage difference between the lead electrodes L 1

when looking from the right side of FIG. and L 2 and the anode, thereby ensuring that

A portion 351 of the spring 350 is arranged so that it is 5 ° the glow discharge on a desired cathode

through a slot 352 (Fig. 7) in the extension 353 of the burns.

Digit wheel 370 extends and a torque on the When the glow discharge from a cathode to the

Numeral wheel 370 exercises, whereby it is to be advanced with the same next, for example from

speed as the shaft 301 is running. Cathode # 8 on Cathode # 9, becomes the lead electrode

The ratchet wheel341 is made in a sliding fit on an approach 354 55 Ll briefly more negative than the cathode, λνο-

(Fig. 8) of the number wheel 70 and with a by the glow discharge on this lead electrode Ll

Slit 355 provided in its hub which skips the second. Then the lead electrode L2

The end of the spring can accommodate 325, so that a light also briefly made more negative than the cathode;

Torque is exerted on the ratchet 341 and there are the voltages on the lead electrodes Xl and L2

also at the same speed and in the same 60 at the same time, which causes the glowing

Direction revolves as the shaft 301 and the number wheel 70th divides the discharge on the lead electrodes L1 and L2 . the

To stop the number wheel 70, the armature 340 voltage of the lead electrode Ll is then back to the

of relay 339 is increased above normal value by closing a circuit, whereby the entire glow

the contacts 311 and 312 or 314 and 315 are excited, charge is transferred to the lead electrode L2 . In the end

which over the associated fixed contacts and fixed 65 jumps the glow discharge, which is on the conductive

Slip rings slide until the armature 340 is in one of the teeth electrode £ 2, over to the cathode No. 9, if

360 engages in the ratchet wheel 341 and it stops. The voltage of the lead electrode £ 2 is reduced to its normal

Locking of the ratchet wheel withstands the torque of the len value increased.

Spring 350 and causes it to untwist slightly; The pulses fed to the lead electrodes £ 1 and £ 2

as a result, the power transmission 70 is derived from a single pulse, which is the leading

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13 14

electrode Ll directly and the lead electrode L 2 via a. are in the rest position, the foot of the second pawl becomes

Integration circle is supplied. Such an integration 214 against the rear end of the curved projection

circle consists only of a resistor and a 217 printed by a tension spring 219. The foot 216 of the

Capacitor, and the delay between the on-bracket 205 touches the front end of the foot of the

occur the pulses at the lead electrodes L 1 and L 2 5 second pawl 214, the radius of the bottom of the foot

is caused by the charge, but that in the capacitor 216 of the bracket 206 is slightly smaller than the radius

is saved. the bottom of the foot of the second pawl 214, both

It can be seen that when the driver radii disappear, measured by the shaft 215, around which these two pulses can pivot the glow discharge on the conducting parts, so that the foot 216 of the electrode L 2 remains on until the Charge of the condenser bracket 205 the stop for the curved projection 217 has sunk so far that the glow discharge forms, this projection in turn can pass over the cathode no. 9 in turn. their stop for the foot of the second pawl 214

A mechanism that forms for a delay in the.

Releasing a key of the main keyboard is provided, each lever 218 extends from a point next to at least for a period of time necessary to reach the number 1 key of the individual key row in the direction of, which is effected by the actuation of the key the front of the machine to a point in shall be, hereinafter with reference to the substantially perpendicular below the axis of the shaft 50. Figs. 3, 4, 5 and 6, in particular Figs. 5 and 6, at this The levers 218 are pivotable about a point to be written. Each key shaft 200 is mounted on its shaft 220, which extends through all the rows of keys at the end facing away from the key top 80 with a machine, and the lever 218 is provided in the direction of extension 201, which is made of an insulating material, counterclockwise around the Axis of shaft 220 is made of nylon, for example, and to which a fork-shaped pressed by a spring, one end of another contact device 202 is attached. The arrangement is spring 221 is made on the lever 218 approximately in its middle so that each contact device attaches a contact, and the other end of the spring 221 is bridged so long on pair 203 (Fig. 5) or electrically 25 a backward Arm of a three-armed short-circuits, such as the button that attaches to the contact means associated with claw 222 carried by the lever 218, is not depressed while being. The lever 218 is at a point next to which electrical contact is broken when the button ratchet wheel 211 is cranked on the axle 50, and the three-actuated. The shaft 200 of each key is also an armed claw 222 and is pivotably provided there on the lever 218 with a laterally projecting shoulder 204. 30 stored where this lever is cranked.
The three-armed claw 222 has a backward pushing of the associated key in corresponding inclined directed arm 223, a second, upwardly inclined slots 205 in corresponding key rails 37 an arm 224, which is attached to its Bottom with a tooth and grip; the downward movement of the lug 204 causes a run-up tongue 226, the purpose of which is still to engage in the inclined slot 205 that the 35 will be explained, furthermore it has a third, towards the key rail towards the front (i.e. towards the left in FIGS. 4 and 5) ) downwardly inclined arm 227, which is moved in line with the. The key rail 37 is located on its front ratchet wheel.

end pivotable on a link of a bracket 206 in a bracket-shaped part 228 which is pivotable on the -form an inverted U and mounted at its end on the same shaft 220 as the lever 218 carries between the members of a bracket 209 in the form of a 40 on its yoke a fork-shaped electrical contact standing U. device 229; the contact device 229 is of the

In front of each row of keys, a shaft 50 is arranged, bow-shaped part 228 is isolated and is also in a that via a dog clutch 53 with a belt counterclockwise direction from the same spring disk 51 is connected, which is pressed with constant rotation, which the lever 218 with the curved pre-speed from the vertical output shaft 25 45 pushes jump 217 in the counterclockwise direction, of the motor 24 is driven. The shaft 50 carries a top end of the yoke of portion 218 extends fixed bearing bush 210, which serves as an abutment and from above and is bent so that there is a horizontal which a segment is cut off. Forms on the shaft 50 platform 230, while the lower end of the a ratchet wheel 211, the yoke is extended downward, and a locking arm 231 are arranged to be freely rotatable however, it is generally formed by a tension spring 212 which, when it is attached to one of the spacers 232 is forced to run with the bearing bush 210. that strikes between the frame plates of the machine One end of the spring is attached to the bearing bush 210 and that is provided to allow the movement of the bow-shaped others attached to a pin 213 on the ratchet 212, part 228 limited.

which is arranged so that when the ratchet wheel three fixed contacts 232, 233 and 234 are retained over is, the spring 212 stretches as long as 55 arranged one another, the middle and the lowermost until the bearing bush 212 strikes the pin 213. Contacts 233 and 234 are bridged and electrical Thereupon the ratchet wheel 212 is further through the fork-shaped electrical contact device Shaft 50 rotated. 229 connected when this contact device is in

It has already been mentioned above that the key rail is in its rest position. This contact device 229 37 at its front end can be swiveled by a bridged 60 and electrically connects the top one swept bracket 206 is worn. The bracket 206 and and. the middle contact 232 or, 233, if the an inverted, U-shaped second pawl 214 are machine set to pivot a bill arranged around a shaft 215, which lead through all. When the contact device 229 is the top Rows of the machine goes. The yoke of the bracket 206 is and bridges the middle contact 232 or 233, 4 facing the end of the machine and at an angle 65 touches the locking arm 231 of the yoke of the bow-shaped inclined at about 45 ° to this and forms a part 228 which carries the contact device 229, Foot 216, which acts as a stop for a curved frame spacer 232.

directed projection 217 of a lever 218 is used, the Another, U-shaped lever 250 is on a shaft

will be described in more detail below- If 251 is attached, which runs through all the rows of the machine

the lever 218 and its curved projection 217 extends in 70. The wave 251 lies on the straight line

15 16

between the point where the key rail 254 is attached to the 218, this under the influence of a spring which inverted, U-shaped bracket 206 on the front part which strives continuously to the bracket-shaped part 228, Machine is connected, and the shaft 220 around which the is provided with the horizontal platform 230, in rotate lever 218 and its curved extension 217 counterclockwise direction; the flat pan can. An arm of this U-shaped lever 251 5 form 230 is thereby through the arm 227 of the U-shaped touches the shaft journal 252 through which the three-lever touches. So if the bow-shaped part 228 and armed claw 222 pivotable on lever 218 with the lever 218 with the curved extension 217 for arcuate extension 217 is connected. The other a movement around the shaft 220 in the direction against the Arm 227 of the U-shaped lever 250 rests on the horizontal-clockwise direction, leading to the wave troughs Platform 230, from the extension of the upper io pin 252 not only the three-armed claw 222 to the front, Edge of the yoke of the bow-shaped part 228 is formed but also allows that the substantially is moved in the counterclockwise direction by a U-shaped lever 250 clockwise about its axis 251 Spring is pressed and rotates in this direction. By dimensioning the movement of the would rotate, but on it through the arm 227, of the parts involved on U-shaped lever 250 (the one that inhibits this Horizontal platform 230 rests, is prevented, ig cancels the influence by the other arm 227 of the

The contact pair 203, which by the contact device U-shaped lever 250 on the mentioned platform 230

device 202 is exerted on the key shaft 200 in each row) it is ensured that the bow-shaped

is bridged, and the sets of three contacts 232, 233 part 228 on which the fork-shaped contact device

and 234, which are mounted one above the other in the vicinity of the device 229, are quickly released, these

Ratchet wheel 211 are arranged in each row, lie * ° quick release in turn causes the

in or on an insulating plate 253. By an upper and the middle fixed contact 232 and 233 with

talking wiring or by snap-action printed lines are electrically connected,

are the contacts that are also made by the printed or the further movement of the lever 218 with the bent

Etched circuit can be formed with ent- extension 217 causing the downward

speaking parts of the adding machine connected. 25 arm 227 of the three-armed claw 222 the periphery of the

After the position of the individual parts is reached in the resting ratchet wheel 211, so that the movement of the

position has been described, the action claw should now turn counterclockwise

way of the different parts during the fast claw 224 and the tooth 225 of the claw in one

Depressing and releasing a key described handle with a tooth of the ratchet wheel 211 brings,

as is normally the case with an adding process 30 The arc which the lever 218 with the curved

the case is. extension 217 is through a stop 260

When a key 20 is depressed, the limited grip on the lower end of the curved extension lug engages 204 is formed on the key shaft 200 in the inclined tion 217 of the lever 218 and on the sub-slot 205 into the key rail 37 and presses the second pawl 214 against it. The attack 260 this key rail in the direction of the front part 35 preferably forms an integral part of the lever 218 of the machine (i.e. to the left in Figures 4 and 6). The and bounces backwards from the base of the curved rear shoulder 254 of each pair of shoulders, which the protrusions 217 in front.

Opening of the inclined slot 205 limited, when the tooth 225 of the three-armed claw 222 moves into one

forward and below the lugs 204 of the key tooth of the ratchet wheel 211 engages, the movement

Shanks 200 whose buttons have not been pressed. When 4 ° of ratchet wheel 211 stopped. With a view to that

If a key was pressed in a row, it is not the ratchet wheel 211 that rotates freely with respect to the shaft 50.

it is more possible to press another key in this row of keys if it is held down, the shaft 50 sets

until the key you pressed has been released and continues to rotate without the ratchet wheel 211

take this back into the upper rest position by the spring until the bearing bush is on the shaft (on the one

leads is. Furthermore, the depressed key is attached by the +5 end of the spring) a circular motion

the engagement of the lug 204 of the shaft 200 which is approximately 70 "and abuts a pin,

pressed button into the inclined slot that is attached to the ratchet wheel after the (on this pin this is the

key rail pushed in front. other end of the relevant spring attached). It is

The inverted, U-shaped bracket 206, from which it can be seen that between the stops of the Klineinem Part the front end of the key rail 37 and the resumption of its drive is carried, is elapsed around the pivot bearing 215 in clock time interval; this time interval is the essential pointing direction Rotated by the movement of the key rail 37 lent for a correct working of the electronic and thereby causes the foot 216 of the direction. When the socket on the axis 50 the pin The bracket 206 has reached forward over the front surface of the curved ratchet wheel, the drive is between Extension 217 slides. While the foot 216 of the 55 of the axle and the ratchet wheel are rigid, and the three-armed Temple 206 still partially on the curved request pawl 222 is pushed backwards (i.e., to the right tion217 attacks, the fork-shaped contact slides in Fig. 4 and 6). This backward movement of the pawl 222 direction 202 at the lower end of the key shaft 200 is on the lever 218 on which the claw 222 is pivotable the contacts 203, which is normally secured by it, and continues until the bridges as a result of which they are driven 60 by the supply voltage, which separates the tooth 225 of the claw 224 will. The advancement of the key rail is beard, the tooth 225 of the claw 224 as a result of a and the foot 216 of the bracket 206 causes contact with the tooth of the ratchet wheel 211 to be off-foot 216 releases the curved extension 217, thereby removing engagement with the ratchet 211. The time, the lever 218 of which the curved extension 217 is used to effect the loosening of the tooth 225 of the claw forms a part that is required in the counterclockwise direction 65 of the ratchet wheel 211, gives a wisdom can turn until it is poorly affected by the effect of the third delay, which leads to the already mentioned delay Claw 222 is locked. time is added.

It can be seen that one arm of the essentially at some moment during the so far described

U-shaped lever 250 against the journal 252 given work process, the button is pressed by the operator

is pressed, which the three-armed claw 223 on the lever 70 can be released; however, it will be on

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17 18

Prevents climbing into the normal rest position, as the three-armed claw 222 releases the ratchet wheel 211.

The key rail is in its foremost position through the entrance.

When the operator releases the key, the curved extension 217 is held in the foot 216 of the inverted U-shaped bracket 206, which moves the key rail backwards and causes the associated inclined slot in the key rail 37 5 of the Foot 216 of the inverted, U-shaped bracket 206 holds the approach 204 on the key shaft 200 of the pressed foot of the second pawl 214 from the tip of the curved key. Towards the end of the backward movement in extension 217 pushes away so that the foot of the pawl 214 clockwise direction of the lever 218 with the curved extension downwards and behind the tip of the curved extension 217 hits the shaft journal 252, through gerung217 and allows the curved silting up the three-armed claw 223 is attached to the lever 218 by the small space between the is, against one arm of the substantially U-för- front of the shoe 216 and the front surface of the moderate lever 250 and rotates this lever against the second pawl 214 to the bottom of the shoe 216 clockwise around its bearing 251. During this rotation, the inverted U-shaped bracket 206 can rise, the U-shaped lever 215 counterclockwise is at least 1/10 of a second, form 230, which forms part of the arrangement, Fig. 3 u nd 4 show a calculating machine with one which holds the fork-shaped contact device 229 ent- a plurality of rows of keys 80 and each row of keys, whereby this device from the position, in ordered summing devices 70, also a switch which the top and middle contact 232 or device in the form a rotating brush F and 233 of the three fixed contacts are bridged into the 20 of a contact plate 12, which is moved depending on the order, in which the lowest and the actuation of a button in a row of buttons to effect middle contact 234 and 233 respectively are bridged. When comes and ensures that a certain number last part of the arcuate path of the lever 218 with electrical impulses to control the work of the curved extension 217 in the downward direction summing device 70, which with the relevant key becomes the tip of the curved extension 217 from the 25 row is connected, transferred and that the number, lower edges of the foot of the inverted, U-shaped which is stored by the summing device 70, to bracket 216 and the second pawl 214 released. Which is changed an amount that corresponds to the number that the foot of the bracket snaps onto over the top that represents the pressed button.

curved extension 217 and guides the key rail 37. Furthermore, means are provided for transfers from one to the rest position, whereby the pressed key 30 row of the machine is released into the summing device of the. Furthermore, the back end of the adjacent, next higher row keeps transmitting,
of the foot 216 of the said lever, the foot of the second. The machine shown in Figs which can consist of one piece or be assembled from the claw 222 of the tooth 225 of the ratchet wheel 211 on the 35. The panel 11 carries a contact plate 12, either in the form of a printed circuit board or lying on the upper surface of the curved extension 217, adjacent to the underside of the foot 216 as individual elements, in an inverted U-shaped bracket 206 of a suitable material . Embeds, or in some other suitable way contact-The above-described operation of the various pieces corresponding to the contact pieces O ₀ to O ₈ , parts of the mechanism required that the operator 40 P ₀ to P ₈ , Q ₀ to O _-8 etc. up to Y ₀ to Y ₈ and Z ₀ to Z ₈ man after pressing a key these are provided again quickly, as it is released in the circuit after. However, if the operator is shown the key for FIG. 1, as well as slip ring segments O ₉ , depressed for a period of time which _{exceeds the normal P 9} , Q ₉ , etc. up to Y ₉ , Z ₉ and H, according to the course of the operation , the working is the slip ring segments O ₉ to Z ₈ , H of the circuit shown in FIG. 1 with different parts at the end of the working cycle 45. The slip ring segments O ₉ slightly different from that which has been described above to Z ₉ are arranged on the plate 12 in such a way that they differ. The working cycle under the new conditions with the corresponding contact pieces O ₀ to O ₈ is the same up to the moment when the bent P ₀ to P ₈ , Q ₀ to 0. ₈ etc. up to Y ₀ to Y ₈ and Z ₀ to Z ₈ extension 217 and the lever 218, one of which they work together. In addition to the aforementioned contact part, the drive force from the pawl 5 ° causes the wheel 211 to move downwards via the three-armed claw 222 in _{front of the contact piece group O 0} to O _8, two contact pieces C and B and the contact piece D because of (ie if they are provided around the shaft journal 252. _{Turn P 0} clockwise in front of each of the remaining groups). When the driving force exerted by the ratchet wheel 211 to P ₈ , Q ₀ to O, ₈ etc. up to Y ₀ to Y ₈ and Z _{0 to} Z ₈ has caused the tip of the three contact pieces C, B and A. In front of each Abrasive curved extension 217 below the level of the foot 55 ring segment, according to the different groups

216 of the inverted, U-shaped bracket 206 migrates from contacts, the contacts C ₁ and B ₁ lie. The foot 216 does not snap over the tip as before. Clock pieces A are aligned with the front end (ie that of the curved extension 217, since the key from the right end in FIG. 1) of each slip ring _{segment P 9} , Q ₉ is still down held down, etc. up to Z ₉ and H. The contact plate 12, which is either and thereby the extension 204 of the key shaft 200 60 can be made in one piece with the panel 11, the key rail 37, on which the inverted, U-shaped or is carried by this, has been attached in the drawn bracket 206, holds. Therefore, the embodiment in FIGS. 3 and 4 causes the contact pieces and the tension spring 219 attached to the second pawl 214 to mount the slip ring segments on the underside, this pawl, over the tip of the curved extension so that they look down in FIG. On which the

217 until the latch is through contact with 65 contact plate 12-bearing panel, if necessary, a the edge surface of the shoe 216 of the inverted, series of additional contact plates, e.g. B. the con-U-shaped Strap 206 is held. In this position, clock plates 14 and 15 are provided, which prevents calculating machines the second pawl 214 a further movement is necessary when functions such as automader curved extension 217 upwards, the otherwise table multiplication and division are carried out would be done automatically when tooth 225 of 70 should be. The contact plates 14 and 15 are supported by pillars

Claims (13)

19 20 16 and 17 worn; in the drawn embodiment motor 24 is closed. After the pressed key, for example, the necessary contact pieces are and has returned to their rest position, the slip ring segments on the upwardly directed upper rod 31 pushes the tab 33 to the right and thereby removes the surface. In suitable bearings on the intermediate plates 18 the contact 34 from the contact 35, whereby the circuit and 19 is a through the plates 12, 14 and 15 er 5 of the motor is interrupted again,
It is clear that it will be necessary to arrange either a most F, F ¹ and F ² which are suitable for mechanical deceleration, such as air contact pieces and slip ring segments and the brake, or its electrical equivalent in the circles mentioned contact pairs in the manner described in connection with FIG. 1 between the contacts 34, 35 and the motor 24 should be bridged. The brushes F, F ¹ io to ensure that the motor and F ^z are driven by a pulley 21, continue to run for a long time, so that, for example, the number wheel 70, which is at the upper end of the shaft 20, if you look at Fig. 3 since that serves as a summing device, every change in seeks, is arranged; The pulley 21 is attached to the indexing tubes by bridging the shaft and takes on a belt 22 which engages on contact pieces and slip ring segments, as in a pulley 23, which was described by the connection with Fig. 1, causes can follow right output shaft 25 of electric motor 24,
is driven. __ To do a multiplication with the machine described The only thing to do is to be able to execute the motor 24 with a subdivision and / or a division contained in it The reduction gear is mounted on the base plate 10 and necessary to use the procedures normally used in for example via two drive belts of the two 2 ° such button-controlled and operated by buttons Pulleys 27 and 26 are common on the vertical output calculating machines; that is, they are moved shaft 25 of the gear housing or some arithmetic operations by additions or subtractions, Any other gear and shafts with one shaft the summing device 70 and formed with that, rather than either addition or sub-wave 50 a delay device for the keyboard. 25 traction without complementary numbers on the keys The delay device for the keyboard is, as can be done, in the machine by simplification mentioned, designed so that when a key is one of the key circles (for example by omitting the Row of keys has been pressed, no other key in these "J £" contact pairs), plus and minus keys are omitted Row can be operated until the machine can do all the data and then addition, subtraction, multiplication has deleted, which is carried out on the contact plates 12, 14 3 ° and division in exactly the same way and 15 are located. can be done by following these four arithmetic rules The machine illustrated in Figures 3 and 4 includes executes, with complementary numbers on the keys a plurality of rows of keys, through which the digits are provided, so that a subtraction and division, can be changed, which is either facilitated by one if necessary. mechanically operated number wheel 70 or from a 35 The machine is provided with means that only each electronic stepping tube will be played one key of a row of keys to be pressed at the same time can that can either in support of the mechanically. Furthermore, the machine is equipped with a delay actuated summing wheel 70 or as a replacement for this device provided by pressing a button can serve. a row of keys comes into action and causes the With reference to FIGS. 3 and 4 will now be described 40 key can only return to the rest position when how the motor 24 is turned on when one of the machine receives the information obtained by pressing the Key of a row of keys 80 that was fed into the machine in the keyboard of the Ma key. machine are included, with an addition or in addition, the summing devices contain the Subtraction containing invoice is actuated. machine described electronic stepping tubes Normally the motor 24 is switched off; he enters 45 for decimal counting, on its own or in conjunction Action when using a compliantly controlled contact 34 with mechanical indicators Connection with a contact 35 gets. can find which through the stepping tubes In the case of an addition, the contact 34 will be controlled with the Kon. clock 35 by a switch bracket 29 (Fig. 3) in contact It can be seen that the high speed brought, which is arranged so that he the main keyboard 50 step switch tube, which spans as summing devices either and with an upstanding arm 30 alone or in connection with the mechanical display provided with the devices connected to the right end (Fig. 3), it enables that. The arm 30 is provided at its upper end with a hole for all the contacts of the twelve rows of keys in the row, which can accommodate the end of a rod 31 after being scanned in the same time as for mechanical actuation between two supports or pressed the mechanism of a single set 32 is guided, which are carried by a fixed part of a key row of a mechanically operating machine for the machine or from this - the registration of the actuation of a key required are worked. The free end of the rod 31 (Fig. 4) is borrowed.
is at the end of a tab 33, which is on a Axis 34 is mounted. The tab 33 has 60 claims:
displaceable free end one backwards extending extension 33 a, the free end of which against 1st calculating machine with counters that presses through elekeinen isolated button 36, which can be incremented on the displaceable tric pulses, which is attached to one end of the spring contact 34. It can be seen from the scanning device containing the contact bank that when any key of the 65 is actuated, furthermore with a row of keys actuated by the keys, the rod 31 with the associated keyable switching device, through the specific conical rail 37 in FIG. 4 to the left is moved, and thereby clocks of the scanning device can be switched through, allows the tab 33 to rotate around its bearing 34 after a connection between a left (Fig. 4) and the contact 34 is made to the voltage source and a counter during scanning , Contact 35 presses, whereby the circuit for the 70 characterized in that by pressing a button for all positions at the same time a group of contacts, the number of which is the number pressed in the respective position Key corresponds, it can be switched through that, furthermore, the contact groups assigned to the respective positions then all in places one after the other through the scanning device with the associated Counters are connected and that a carry that has arisen in one place corresponds to the counter of the next higher Position is supplied before the contact group assigned to this position with its associated counter is connected. 2. Calculating machine according to claim 1, characterized in that the contact bank contains a number of contact groups (O ₀ -O ₈ to Z ₀ -Z ₈ ) arranged one behind the other as seen in the scanning direction, each of which has a number of corresponding to the highest digit of a digit Contacts include, and that each contact group is assigned a slip ring segment _{(O 9 to Z 9} ), the scanning device being designed so that it sweeps over all contact groups one after the other in a single working cycle and the individual contacts of the contact groups one after the other with the slip ring segment assigned to the respective contact group connects. 3. Calculator according to claim 2, Ge characterized ^a 5 indicates that additional contacts are provided between the individual contact groups, which cooperate each with a single carry-save. 4. Calculating machine according to claim 3, characterized in that between the contact groups (O ₀ -O ₈ to Z ₀ -Z ₈ ), seen in the scanning direction, first a contact (C) connected to a reset input (Tl) of the carry memory is provided, to which a contact (C ₁ ) connected to a voltage source (M) of such polarity is assigned that the transfer device is reset to its idle state when these contacts (C, C ₁ ) are short-circuited by the scanning device, if it was in its set state that a second contact (B) is then provided, through which the transfer device is set to its working state when the scanning device passes over it, if a carry occurred when the previous electrode group was passed over in the associated counter, and that finally a third contact (A ) is provided, which is assigned to the following counter when it is passed over by the scanning device th slip ring segment is connected and which is live when the transmission device is in the set state. 5. Calculating machine according to claim 4, characterized in that the carry device consists of a carry memory which contains a bistable circuit (T ₁ , T ₉ ) , the setting input of which is connected to a further tube (T ₃ ) that the circuit in the Operating state changes over when the further tube is switched from the set to the idle state; that further the input electrode of the further tube is connected to a carry bus bar (/); that the reset input (Tl) of the bistable circuit is connected to the contact (C) located between the contact groups; that the reset input of the further tube (T ₃ ) is connected to a contact (J5), seen in the scanning direction, behind the first-mentioned contact (C) and that a point of the bistable circuit which is under voltage when the bistable circuit is in is in the set state, is connected to a contact (A) located behind these two first-mentioned contacts. 6. Calculating machine according to one of the preceding claims, characterized in that the key-operated Switching device is designed so that when a key is pressed in a row of keys a number is switched through by contacts of the contact group assigned to this row of keys, which in the case of additions equal to the number that corresponds to the key in question and, if subtracted, a complement to it Number is. 7. Calculating machine according to claim 6, characterized in that an addition-subtraction switch (CS ₁ ) with a movable (CS4) and two fixed contacts (CS \; CSl) is provided, that the key-operated switching device is also assigned for each one point Key row comprises two groups of switch contacts (K ₁ -K ₉ , S ₁ -S ₉ ) , one group (K ₁ -K ₉ ) consisting of normally closed contacts that are in connecting lines between adjacent contacts of a contact group (O ₀ -O ₈ to Z ₀ -Z ₈ ) and a connecting line between the contact assigned to the highest digit and the fixed contact (CS ₄ ) of the changeover switch (CS ₁₁ ), which is connected to the movable contact (CS1) in the "subtraction" position , while the other group (S ¹ JS ₈ ) consists of parallel-connected working contacts, which are connected between a line to the fixed contact (CSf) of the changeover switch, which in the "Addition" position with the movable contact in Connection is, and the contact corresponding to the lowest digit (O ₀ , P ₀ to Z ₀ ) of the corresponding contact group is switched. 8. Calculating machine according to claim 7, characterized in that _{a single contact (D) is provided in front of the first contact (O 0} ) of the contact group (O ₀ -O ₈ ) assigned to the ones place, which is connected to the fixed, in the position »subtraction «With the movable contact (CSl) in connection contact (CSl) of the switching device (CS ^ connected and arranged so that it is connected by the scanning device (F) when it is passed over with the slip ring segment (O ₈ ) assigned to the units position, so that in the case of subtraction, the counter of the ones digit is supplied with a number of pulses which corresponds to the tens complement of the number corresponding to the key pressed in the ones digit. 9. Calculating machine according to one of the preceding claims, characterized in that as a counter Electronic step-by-step switches with a number corresponding to the number of digits for the relevant position of stable operating conditions and that the individual counters each have a mechanical display device are connected to reproduce the number stored in the associated counter. 10. Calculating machine according to claim 9, characterized in that the cathodes of the step switch tube with fixed contacts of a rotary switch (Fig. 9, 10) are connected by at least one movable contact of the rotary switch can be continuously scanned; that the moving contact of the rotary switch is connected to a locking relay that stops the rotary switch when it is connected to a cathode of the Step switch tube is connected, on which a glow discharge rests for a certain period of time, and that the rotating contact of the rotary switch is connected to a number wheel on which the in the Step switch tube stored number can be read off can when the rotary switch is stopped by the locking relay. 11. Calculating machine according to one of the preceding Claims, characterized by a trip lock known per se, by means of which a key is pressed is prevented until the operating cycle of the Machine is finished. 12. Calculating machine according to claim 7, characterized in that the movable contact (CSl) is connected to a bistable circuit (T ₁ , T ₂ ) through which this contact is energized only during a single rotation of the scanning device during a working cycle of the machine so that any further revolutions are ineffective. 13. Calculating machine according to claim 12, characterized by two pairs of contacts (E, E; G, G) which can be bridged by the scanning device and which are arranged in front of the contact groups assigned to the rows of keys, one contact of the contact pair (E) closer to the contact groups with one Device for generating a single pulse (U ₄ ) and the other contact of this contact pair with one Setting electrode of the bistable circuit (T ₁ , T ₂ ) is connected, so that when this pair of contacts is bridged by the scanning device, the bistable circuit is set and the movable contact of the switching device (CS ₄ ) is energized, while the other two contacts (G) are connected to a voltage source or a reset input of the bistable circuit, so that when these contacts are scanned, the bistable circuit is reset and the movable contact is again de-energized after the scanning process causing the working cycle of the machines has ended. Considered publications: German patent specifications No. 747 SOl, 732 568; U.S. Patents No. 2,176,932,2,524,115,
543 899; "Automatic Digital Computers", Methuen & Co, London, 1956, pp. 25 to 36, 66, 223 to 251; "High Speed Computing Devices," Mc. Gran Hill Book Comp; New York - London, 1950, pp. 45 to 54 and 397 up to 400; "Transactions of the I. R. Ε.", PGR TRC - 2, 1954, pp. 2 to 7, especially p. 4. In addition 3 sheets of drawings © 009 570/213 8.60