US2253532A - Printing telegraph apparatus - Google Patents

Description

Aug. 26, 1941. A. H. REIBER 2,253,532

PRINTING TELEGRAPH APPARATUS Filed June 6, 1938 INVENTOR. ALBERT H. REIBER BY A A TORNFL.

FIG; 2

Patented Aug 26, 1941 UNITED STATE m7 an s PATENT OFFICE PRINTING TELEGRAPH APPARATUS Albert R. new, Evanston, m, m; to .Teletype Corporation, Chicago, 111., a corporation of Delaware Application June 6,1938, Serial 3; Claims.

vision of means included in' a keyboard perfo-- rator which will be effective to prepare a control strip for controlling by telegraph the re cordation of tabular matter.

Another object of the invention is to provide a telegraph mechanism comprising a keyboard, a transmitter and a receiver, with means for exercising a predetermined control over the transmitter by the keyboard, and'means controlled by a selectable instrumentality in the; receiver responsively to signals received from the transmitter, for varying the control exercised over the transmitter by the keyboard.

Another object of the invention is to produce a signal control strip so perforated as to provide variable tabulationtime intervals by automatically inser'ting'in the control strip variable pluralities of tabulation-time code signals having non-spacing, non-printing nature.

A feature resides in providing in a keyboard perforator or keyboard transmitter, additional 5 tmueitransmission but usp nds printinsn mechanism controlled by tabulator mechanism for automatically changing or altering, under certain conditions of operation, the key-controlled setting of the permutation elements from a tabulator initiating code combination to a preferably non-printing, non-spacing code combination effective to prolong a tabulating condltio in a controlled tabulating receiver. r

To achieve the above and other objects of the invention, a keyboard perforator and transmltter of the type disclosed in U. S. Patent No.

1,965,572 is modified for the production of periorated tape to control the transmission of message matter embracing tabulation operations.

In printing telegraph systems employing recording apparatus provided with tabulating mechanism, a variable interval of time is required to move the type carriage or platen carcally during, the time that the carriage, is in motion while tabulating, thus attaining proper tabular operation of the recording apparatus.

The present invention provides for an operative association of a keyboard transmitter with a receiving printer, whereby the receiving printer may be made to respond to operation of the keyboard transmitter simultaneously with perforation of a tape. Such anlarrangementrproduces a printed copy or home record corresponding to the perforations in the tape, and allows an operator to determine easily and quickly whether the keyboard operations correspond with the message desired to be transmitted which will be eflfected by advancing the through a tape transmitter. Specifically, when a record 01 perforated nature is made involving tabulated portions, it is perforated tape ex edient to compensate at'the. transmitter for" the tabulation time required at the recorder. either by suspending transmission during tabulation, as disclosed in U. 8. Patents 2,104,071 and 2,104,110, or by employing the'arra'ngemen't or method of the present invention, which conthe type of tabulating recorder disclosed in U. S.

bar extendsacross the front or the machine. is

' carried by brackets mounted in the typing unit,

riage'from one tabular position to another". This interval will betermed tabulating time" in this application. In manual operation 01 key controlled recording apparatus cognizance is taken of tabulating time by the operator, who, during such time, refrains from operation of the keyboard. However, in automatic operation of such recording apparatus under remote control or tape transmitters wherein the apparatus is unattended simulate manual control duringtabulationso as and is capable of swinging toward and away from the type carriage. The tabulator bar carries a number of adjustable stop members which determine positions ,to any of which the type carriage is automatically propelled through a distance equivalent to a plurality of character spaces following the reception of a tabulator code signal combination,

According to the method embraced by this invention, the tabulator key "of the keyboard is operated to' set the keyboard permutation .ele-

tins. and it initiates continuous and repeated operation of the transmitter. The modified seting of the keyboard permutation mechanism sets the transmitter elements for a tabulatlng time continuation code signalwhich has the function of consuming line time. During the progress of the carriage in tabulating time at the home recorder, the transmitter transmits reto maintain a tabulating condition automati pcatedly and the tape perforator perforates rescore type responsive to the signal, the result' ou d be a li e of printed characters of the nature selected, thus leading the eye of the reader from one tabulation column along a line of legibility to the next tabulation column,

which effect may be desirable, particularly in' case of tabulation columns widely separated upon a page. The continuation code signal also is desirably non-spacing in the sense that if such a signal were received by a receiving tabulating printer after the carriage has stopped in response to tabulation control, it is desirable that response to the continuation code signal will not step the carriage from its tabulation control position.

A better understanding of the present invention may be had from the following description taken in conjunction with the accompanying drawing wherein like reference characters are used to designate similar parts throughout the several figures, and wherein:

Fig. 1 is a front elevational view, partly in section, of a keyboard perforator and transmitter embodying the present invention;

Fig. 2 is a fragmental perspective view of .the arrangement according to the present invention;

Fig. 3 is a schematic electrical diagram of the perforator magnet operating circuit; and

Fig. 4 is a detailed sectional view taken on line 4-4 of Fig. 1.

Having reference to Fig. 1 there is shown a receiving printer of the type disclosed in U. S. Patent No. 1,904,164 to which is associated a tabulator mechanism, a keyboard, a perforator, and a transmitter. This combined apparatus comprises a base portion, indicated generally by the V numeral upon which is mounted a typing unit,

indicated generally as l2. Associated with the base portion is a perforator, indicated generis a pivot rod l5 (Fig. 2), which extends transversely of the base portion. To the pivot rod I! a plurality of key levers l6 are rotatably mounted which are normally urged upwardly by individual springs l1, and which are provided, as in the usual practice, at their forward end with keys l8 arranged in banks. Beneath the key levers l6, and extending transversely thereof, are a plurality of pairs of permutation bars l9 and 2|I As is well known, the number of pairs of permutation bars corresponds to the number of elements in the permuation code, for example, five or six. The permutation bars l9 and 2| are provided at each end with vertical slots or notches 22 and 23, respectively, which fit over guide combs 24 and 25, containing rods 26 and 21. The bars I9 and 2| are thus held against longitudinal movement, but are free to be shifted vertically in response to the operation of key levers l6.

Pivotally mounted on rods 26 and 21 are pairs of rocker arms 28 and 29 interposed between each pair of bars l9 and 2|. The rocker arms 28 and 29 are substantially T-shaped, with their free ends formed with off-set lugs on opposite sides of the pivot rods 26 and, 2| and spaced some distance therefrom, one of the lugs of each rocker arm proiects forwardly beneath the lower edge oi. the corresponding permutation bar 2|, and its other lug projects rearwardly beneath the companion permutation bar l9. With this arrangement, the depression of either permutation bar of the pair of bars l9 and 2| rocks the arms 28 and 29 and lifts the companion permutation bar. To the depending portion of the T-shaped rocker arms 29 and 29 is pivotally articulated a longitudinally movable link 3|. Thus, when the permutation bars i9 and 2| are moved vertically in accordance with a. key lever l9, the link 3| individual to a pair of the permutation bars l9 and 2 is moved longitudinally, or in the direction of its length.

' Each of thekey levers I6 is arranged, when operated, to engage and depress one of the permutation bars of each pair of permutation bars l9 and 2| and to set thses permutation bars in accordance with a character code combination. To achieve this object, the upper edges of the permutation bars l9 and 2| are notched to provide high and low portions in accordance with the respective cods signals. Also, the bars of each pair of permutation bars I9 and 2| are complementary; that is, the notches of one bar are opposite the projections of its companion bar. The interconnection between the bars of each pair of bars I9 and 2| by means of the rocker arms 28 and 29 prevents the simultaneous depression of two key levers. If an attempt is made to operate more than one key lever, the key levers can only be depressed for a short distance, when they will be blocked by the high portion of the permutation bars l9 and 2|. By this construction, the simultaneous depression of two key.

levers and the transmission of an incorrect signal is prevented.

The perforator l3 comprises a set of code punches 32 movable through an opening in upper and lower guide plates 33 and 34, and cooperative with a die plate 35 to perforate a tape 36. The plates 33 and 35 are spaced apart to form a tape guide. Intermediate the guide plates 33 and 34 is a stripper plate 31 which cooperates with shoulders on the code punches 32 and feed hole punch pin (not shown), and duev to the action of springs 39 operates to remove the punches clear of the tape following the operation of a punch hammer 39. The code punches 32 are selectivelyoperated by an actuating member or punch hammer 39 and a set of interponent bars 4| corresponding in number to the punches 32. Operatively associated with each of the bars 4| is a pivoted arm 42 which is connected to a link 3| by means of a connecting bar 43.

The hammer 39 rocks about its pivot 44 and forms the armature of an electromagnet 45. The interponents 4| are adapted to slide on the hammer 39. When the perforating magnet 45 is unenergized, the hammer 39 is retained in its counterclockwise position by a spring 49. Punch hammer 39 carries at the left end thereof a pawl member 41 which cooperates with ratchet teeth 48 of a spacing roller 49 which is also provided with feed pins 5| adaptedto meshwith the feed holes which are invariably perforated in the tape 36. Thus, when the magnet 45 is energized and the hammer 39 is rocked to its clockwise position, pawl 41 is raised to engage a tooth 48 on the spacing roller 49. Then, upon the deenergization of magnet 45, spring 46 actuates the hammer 39 to its counterclockwise position and draws the pawl 41 downwardly, which movement causes .the spacing roller 45 to be rotated counterclockwise one angular step to eiieot the spacing of the tape 55 one unit distance.

To prevent repeated operation of the perforating magnet 45 due to the chattering of the operating contacts 52 in response to a tremulous touch of a key l and thus to insure a single operation oitheperiorating magnet 45 upon each depression of a key lever l6, an anti-chatter means is provided. In addition to the five (or six) pairs of permutation bars i9 and 2| there is provided an. additional bar 40, the link 2| of which is connected by a bar similar to 43 to a. contact operating lever 50. Associated with contact operating lever 50 is a pair of contacts 52. In the unoperated position of the apparatus, the contact operating lever 55 is held in its clockwise position by a spring 55, which constitutes also a return spring for the universal bar 40, and through control of an insulated striker the contacts 52 are held open. Then, upon the operation of a key lever l6, the contact operating lever 50 is operated counterclockwise to close the contacts 52 and, at its end 54, it becomes engaged by a latch member 55, thus latching the contacts 52 closed. When the magnet 45 becomes energized and its armature is attracted to rotate the print hammer 39 clockwise, an adjustable striker 51 carried on a bracket 55 integral with print hammer 3! acts upon arm 59 of latch lever 55 to rock the latch 55 counterclockwise, thus disengaging said latch from the end portion 54 of lever 50 whereupon lever 55 is rocked clockwise by its spring 53 to permit contacts 52 to open. It is thus seen that with this anti-chatter arrangement, the energizing of the punch magnet 45 is independent of a tremulous touch on a'key lever l6 since, as soon as the key hasbeen depressed to close contacts 52, the latch 55 acts immediately to maintain said contact 52 in the [to rotate in a counterclockwise direction, as

viewed in Fig. 1, to lock the latches 52 in their,

selected position. The setting of latches 62 determines whether the contact levers 54 shall or shall not b'evoperated by their associated cams 56 to transmit, through contacts 65, over a signal line 10, to a receiving station (one of which is indicated by a line magnet contained within a rectangle shown intermediate the ends of line 10) a predetermined code combination of signaling impulses. The receiving station indicated by the'rectangle containing the line magnet connected in line 10 may, of course, represent a receiving printer or a reperforator. The respective notches in the cams 66 are arranged in a helical progression so that upon the rotation of the cam assembly, the contacts 65 controlled by levers 64 will be operatedsuccessively. The apparatus herein disclosed is operated in-accordance with an equal length letter code in'which each code combination is a permutation of marking and spacing conditions, and ispreceded by a start impulse and followed by a stop impulse according to the familiar start-stop system.

When the perforator and transmitter are to be operated simultaneously under the control of a key lever l6, means is provided for starting the I operation of the perforating device under control closed position, whereafter they will be opened only upon energization of magnet '45 and operation of hammer 39 through the cooperation of striker 51 and arm 55.

When the keyboard of the perforating mechanism I3 is employed in combination also with. a keyboard transmitter II, the permutation links,

5| are each provided with a pair of upstanding guide lugs 6|. Interposedbetween each pair of lugs 6| is 9. depending arm of a locking latch 52, pivoted on a common rod 55. Inthis manner, locking latches 62 are pivotally articulated to the permutation links 5|, and are adapted'to be of the transmitting devices to insure that the same signal that is transmitted is also invariably perforated in the tape. To achieve this result, two pairs of contacts 1| (Fig. 1) are positioned over two adjacent transmitting cams 66, as more fully disclosed and described in copending application Serial No. 167,139 filed October 4, 1937 by R. A. Lake. The contacts. 1| are mounted on a bracket 12 and associated with each pair of contacts 1| for controlling the operation of the same is a cam follower 13 or 14. In this manner, cam followers-13 and 14 ride into the depressions of their associated cams 66, whichare the same depressions which act to operate the contact levers 64. Thepurpose ofhaving two pairs of contacts 1|, which are connected in'parallel, (as shown in Fig. 3) is to impress a longer operating impulse on the perforating magnet45 than would be obtained under the same conditions by a. single pair of contacts. The contacts 1| are normally open, and when the transmitting cam distributor is operated, the circuit for theperforator magnet. 45 will invariably be closed for the period of substantially two impulse intervals because of an overlap in the sequential operation of the pairs of contacts 1|. l

The keyboard mechanism shown in Fig.--1 is similar to that described and shown in U. S. Patent No. 1,965,572. With the mechanism shown in said patent, it is desired in some instances to transmit directly to a line circuit code combinations of impulses representative of the character (key operated, while in other instances versal bar member (not shown) as-set forth in U. S. Patent No. 1,965,572.

In the operation of the transmitting unit, the

' depression of a key lever l5 move the permutation bars l9 and 2| permutably in accordance with a predetermined code combination, the setperforator simultaneously.

by a cam 69, carried on the shaft 51, is permitted 7 it may be more practical first to perforate a tape in accordance with the key operated, and then to transmit subsequently the signal corresponding thereto by subjecting the tape to a tape transmitter. To provide for the several possible conditions of operation of the mechanism, a switch is arranged in the keyboard apparatus to control the transmission of impulses directly to the line circuit, the perforation of artape only, or the operation of the transmitting'dis'tributor and the To control these-various operations, a switch lever 15 (Fig. 1) is provided which is mounted adiacent the transmitting distributor |.4. Lever 15 these positions through the cooperation of a bracket 11. As shown in Fig. 3 switch member is provided with a bifurcated end having strikers which cooperate with a group of five contacts 18. The position of the switch member 15 indicated at 16A is known as the keyboard position and is a position wherein only direct keyboard transmission of signals to the line is effected; that is, each time a key lever is operated, the transmitting cam drum is rotated a single cycle to transmit a code combination of signals through contacts 55 to the line. In this position of member 15 all of the five contacts of contact bank 18 are opened.

The position of switchmember 15, indicated as 15, is known as the tape and keyboard" position and is -that condition of the apparatus wherein the perforator and transmitting mechanism are operating simultaneously. In this position, the contacts of the contact banks 18 are arranged, as shown in Fig. 3, wherein the lower contact 82 remains closed, and in this position the energizing circuit for the perforating magnet 85 extends from positive battery over conductors 18 and BI, through contact 82, through contacts 1I associated with the transmitting cam, thence over conductor 83, through the winding of-the perforating magnet 45, then to negative battery. From the previous description, it is observed that contacts 1| are closed periodically once for each cyclic rotation'of the transmitting cam drum. In this manner, the operation of the perforator magnet 85 is assured.

The position of the switch member 15, indicated in Fig. 3 as 163, is known as the"tape position, and in this position, the automatic-tabulating mechanism is not used.

' 'According to the present invention, the keyboard perforator and transmitter of the type disclosed in U. S. Patent No. 1,965,572 is modified for the production of perforated tape to control the transmission of message matter embracing tabulation operations. To achieve this result, the typing unit I2 is provided with a tabulating mechanism, which will be now described. The typing unit, indicated generally as I2 in Fig. 1, includes a primary selecting mechanism represented by single selector magnet 8|, shown in Fi 1, and is of the T-shaped sword lever type,

disclosed in U. S. Patent No. 1,745,633 to S. Morton et al., and a secondary selector or selector vane assembly indicated generally as 82. The

selector vane assembly 82 controls, through a set of bell cranks 83, a corresponding set of curved code bars 84 carried in a movable type carriage,

indicated generally as 85-. As set forth in U. 8'. Patent No. 1,904,164, this type carriage is movable longitudinally with respect to a stationary platen (not shown), but manifestly the invention is not limited in its application to such apparatus.

The tabulating mechanism which is in accordance with U. S. Patent No. 2,076,864, comprises a tabulator bar 86, extending across the printer frame in front of the printing apparatus as shown in Fig, l, which is provided with depending portions 81 and 88, through which the bar 88 is pivotally mounted on a bracket 88 carried in the printer frame. Thus, tabulator bar 86, is adapted to be swingable toward and away from the type carriage I2. Tabulator bar 86 is also provided with a longitudinal slot I01 extending substantially the entire length of the bar, within which extend movable stop members I02, which are clamped ,to the bars H by means of screws I08 and clamping members I08 (Fig. 2). As indicated in Fig. 4, these stop members I02 are provided with an inclined or cam portion I38, conformed to produce a quick action upon 00- bar I01, the lower end of which is provided with an aperture I08 (Fig. 2) having its upper righthand corner formed so as to provide a re-entrant stepped portion I08. The tabulator bar 88 normally tends to move in a clockwise direction, as vielwed in Fig. 2, due to the action of a spring II Cooperating with the stepped portion I08 is one arm II2 of a lever II; pivoted at Ill. The extremity of arm H2 is provided with a laterally disposed portion II5 which cooperates with portion I08'0f member I01. Atthe end of arm II8 of lever H8 is carried a vertically extending member II1, the upper end of which is provided with an'open-ended slot adapted to engage a pin H8 carried by the upper escapement pawl III ,of the spacing mechanism which is fully described and shown in U. S. Patent 2,076,864.

The selector vanes 82 control a series of func-' tion levers, including a tabulator function lever I I05. Function lever I05 is provided on its arm I2I with code notches and projections which cooperate with the vanes of the selector vane assembly 82, and which are coded to correspond with the tabulator signal. Thus, when the vanes 82 are set according to the tabulator signal in response to the operation of the selector mechanism 8|, the tabulator function lever I05 will be selected and will be urged toward the selector vanes 82 by its spring I22 about its pivot rod I23.

Function lever I05 is provided with a horizontal portion I24, so conformed that its extremity I25 engages the lower edge of arm II8 of lever II8 so that, when function lever I05 (upon its selection) is permitted to rotate in a counterclockwise direction under the action of its spring I22, the end I25 thereof is raised, thus rotating lever II8 against the tension of its spring I20. The laterally disposed end II5 of arm H2 is thereby moved downwardly clear of the stepped portion I08, permitting spring III to urge the tabulator bar 86 inwardly (or clockwise as viewed in Fig. 2) until wall I26 of member I01 engages the laterally disposed portion II5. Adiustable stops I02 are moved inwardly into the path of .a cam member I21 (Fig.4), which is pivoted at I28 on a portion I28 integrally formed on a bar I 8|, which is comparable to bar 53, shown in Fig. 1 of Patent No. 1,904,164, and which is employed for retaining the bell crank levers 83 in operable relation to vanes 82. Cam I21, like ,bar I3I and bell crank 83, is movable with 'thetype carriage 85 for carriage spacing and normally tends to rotate in a clockwise direction about pivot, I28 due to the action of a spring I32, but its clockwise rotation is limited by the coaction of a stop pin I83, carried thereon, with the end of bar I8I. Consequently, upon the rightward movement of type carriage 85 (as viewed in Fig, 1), cam I21, due to its limited rotatability in a clockwise direction,

' code :bar 2 I.

will, by its camming action on stop member' I 02,

rocktabulator :bar100 outwardly; but upon any,

irregular leftward movement of type carriage-05, cam I21, uponstriking the series of stop members I02, will be rotated counterclockwise against the action of spring I02, avoiding operation of the cam portion I04.

, When the tabulator bar is thus actuated out-- wardly by' the cam I21, against the action of spring II I, the laterally disposed portionzill of lever -I I will escape the stepped portion I00'and through the action of'spriag I20 will resume'its upward position shown in Fig. 2.

f As a result'of the aforementioned operation of llever IIO :upon the selection of the tabulator function lever I00,'the spacing pawl H0 is lifted out of engagement with the spacing ratchet I00 by the link H1, and is held out of engagement with ratchet I05 so long as the laterally disposed portion H0. is restrained :by the stepped portion- I00,-which is'as longas, or for the period of time which,it takes the carriage 05 to carry the cam I21 to the next tabulator stop I02, when, due to 'the camming out of the tabulator bar 00, the

lever III is released to respond to the action of its spring I20, whereupon the spacing pawl' H0 is permitted to return into engagement with the ratchet I05 to stop thecarriage 00.

effects, "through the universal bar, (not shown) the disengagement of the clutch release lever00 from the clutch", permitting the clutch 'members to engage, tocause the rotation 01, the shaft 01. The locking latches 02 have *also been set to correspond-with'thetabulator code signal so'that when the cams 00 rotate with shaft 01, the contacts 05 are closed in conformance with the tabulator signal, thereby energizing the selector. magnet 0I accordingly. The operation of the selector (mechanism associated with selector magnet-0| in response to the tabulator code causes the vanes 02 to be set correspondingly, whereupon the function lever I00:is selected and its arm I24, through end I20, causes the counterclockwise rotation of-lever IIO about its pivot II4 against the action of its spring I20. Through the laterally disposed portion III, lever H0 is It is an object of the present invention to perforate the tape to correspond to the tabulating time as well as for the tabulation initiating code signal. To achieve thisresult, a mechanism is provided including a lever 'I00 pivoted at'I01. One arm I of lever- I00 cooperateswith the laterally disposed portion II5 of lever H2,- and the other arm I 30 is articulated through slot and pin to an arm I of a bell crank lever-i42, pivoted at 140. The depending arm I44, of bell crank I42, is bifurcated at its extremity, one prong I40 of which cooperates with the code bar I0, of one of the pairs of code bars :and the other prong I40 cooperates with a latch lever I41 pivotally carried 4 on the front code bar 2i, companion to bar .I0.

Latch I41 normally tends to rotate in a'clbckwise direction (as viewed inrignl) underthe action of a spring I40. Latch leveif I41 cooperates with a lever I40, pivoted at:. .IOI-to the front Lever I40 is normally held against a stop I52 by a spring I50. Lever I40 is thus normally biased in a counterclockwise direction and isprovided with an upstanding portion I04 which cooperates with the tabulator key lever I I 0. Positioned above the articulation of arms I00 and I, of levers I00 and I42 respectively, is an arm I50 of alever I50 pivoted at I51 (Fig. -2). I

Arm I08 of lever I00 is so conformed as to cooperate vwith the upper surface of clutch release lever 00 of clutch 00.. I y

when the tabulator key lever I0 is depressed, it acts to set the several pairs of code bars I0 and 2|. to correspond to the tabulator code signal. so doing, key lever I0 cooperates with lever I40,

which is latched in its upper position by lever I41,

to depress the code bar 2 I the upstanding portion I04 functioning as a ward or projection. The wardnormally suppliedon code bar 2i is removed latched in itscounterclockwiseposition, as previouslyidescribed, to hold the spacing pawl IIO out of engagement with spacing ratchet I00. Likewise, the laterally disposed portion IIO acts through projection I 00 to hold the lever I 00 in its counterclockwise position, thus raising arm I00. This movement of lever I00 will, through the slot and pin articulation between arms I00 and I, cause bell crank lever I42 to rotate in a manual operator should'be holding down the key lever I0, the prong I40 first acts upon the lever I41 to cam it in a counterclockwise direction against the action of spring I40 to disengage said latch lever I41 from lever I40, unlatching the lever I40.

Automatically changing the position of the permutation bars I0 and 2i, through the action of bell crank lever I42, eflects a change in the position of associated link 0i, which, in turn, effects a change in'position of its associated interponent 4I. Thus, during the subsequent operation of the perforator the codesignal perforated by the perforator I0 and also transmitted by the transmitwhen the device according to the present invention is employed, the function of the removed wardbeing served by ever I40. when the tabulator key lever I0 is thus depressed, the inter ponents 4i are set correspondingly through the links 0I, connecting bars 40-and levers 42 to prepare the perforating mechanism for the perforation'of the tabulator code signal in the tape 00.

Also, the depression of the tabulator key lever I0 ter I4 will no longer correspondto the tabulator initiating code, but will represent some predetermined signal, preferably a non-spacing nonprinting code signal. The tabulator initiating code signal and the tabulator continuing codesignal may be so chosen that they differ by but one permutation element, the levers I41 and I40 being installed upon a permutation bar of that element of the code. The operation of the perforating mechanism will continue so long as the cam drum 00 is permitted to rotate, and this is timed by the approach of the cam I 21 to the tabulator stop I02. a

When the cam I21. reaches the next-tabulator stop I02, the tabulator bar 00 will be'cammed outwardly and the laterally disposed portion I I0 of lever III will ride off'the step portion I00 and be returned to its clockwise position by its sprin I20, thereby permitting the upper space pawl II 0 to return into engagement with spacing ratchet I 00 to stop 'the progress of the carriage. At the same time, the restraint is removed from lever I00, whereupon leversand I42 return to their normal positions as shown in Fig. 2. Also, lever I56 returns to its counterclockwise position, thus removing its control or restraint from the clutch release lever 58, which in turn'is permitted to cooperate with the clutch 88 to disengage said clutch.

As a result of the momentary operation of the tabulator bar 98, the perforating and transmitting operations for the tabulator continuation code signal will cease. Upon the release of the lever I it will be returned to its upward position by its spring I59 and lever I49 will be returned to its counterclockwise position against stop I52 by its spring I53, and into latching engagement with latch lever ill, in which condition the mechanism is in readiness for the next tabulation operation.-

' With the apparatus just described, a printed copy or home record is produced, corresponding to the perforations made in the tape. Furthermore, not only is a home record made of ordinary straight matter, but a record is made of' matter containing tabulated portions, and the perforated tape is so produced as to compensate for the tabulating time, so that when utilizing the tape for retransmission, transmission need not be suspended during tabulation time because sufficient non-spacing and non-printing code combinations of tabulating continuing nature have been perforated in the tape to permit the carriage at the remote printer to move between tabulation stops. With the apparatus according to the present invention, the perforated tape is made to correspond with variable tabulating periods so that there is no undue loss of line time.

Although a particular embodiment of the invention has been described herein, it will be understood that the apparatus is capable of many modifications, and it is contemplated that all changes which come within the range and scope of equivalency are intended to be embraced within the purview of the appended claims,

What is claimed is:

1. In a telegraph system, the combination of signal determining means, means for exercising under certain operating conditions a predetermined control over said signal determining means, a receiver responsive to signaling conditions comprising a selectable instrumentality, and means controlled by said instrumentality and effective while said second recited means is operating under said certain operating conditions for automatically varying the'control exercised by said selector mechanisms,

4. .In a telegraph system the combination of a plurality of transmitting contacts, cam means for controlling said contacts, a key operated selector mechanism for exercising a predetermined control over said cam means, a receiverresponating under said certain operating conditions for automatically varying the control exercised by said second recited means.

2. In a telegraph system, the combination of a plurality of transmitting contacts, cam means for controlling said contacts, means for exer-' tions comprising a selectable instrumentality, and

means controlled by said instrumentality and eflective while said selector mechanism is opersive to signaling conditions comprising a selectable instrumentality, and means controlled by said instrumentality and operable irrespective of the continued actuation of the key operated for varying the control exercised by said selector mechanism,

5. In a telegraph keyboard mechanism, a set of elements, corresponding pairs of code bars for setting said elements in different combinations, a plurality of keys, each arranged to move the. bars of every pair transversely of their lengths in opposite directions and selectively set all of said elements, and means to eil'ect a resetting of said elements irrespective of the continued actuation of an operated key.

6. In a permutation keyboard for telegraph apparatus, a set of permutation elements, a plurality of vertically movable key levers, horizontally disposed code bars engaged and shifted vertically by said key levers to positively set-all of said elements, each in either one of two positions, said elements being arranged under certain operating conditions to retain the setting effected by a key lever until the same is changed by the operation of another key lever, and means arranged under other operating conditions to eifect a resetting of said elements irrespective of the continued actuation of an operated key lever.

7. In a selector mechanism, a plurality of pairs of code bars having code projections on their edges, means for rendering certain of said projections independently displaceable, and means effective under certain operating conditions to control said means to effect through the instrumentality of said bars the displacement of said certain of said projections.

8. In a permutation keyboard for telegraph apparatus, a plurality of vertically movable key levers, a plurality of pairs of code bars having code projections on their edges, certain of said projections being displaceable, a pair of pivot rock arms engaging each pair of code bars to compel the vertical movement thereof in opposite directions in response to the operationof'" said key levers, and means effective under certain operating conditions to control the displacement of said certain of said projections and to alter the setting of certain of said code bars irrespective of the continued actuation of an operated key lever.

9. In a telegraph system, the combination of a transmitter comprising a number of pairs of code bars having code projections on their edges,

certain of said projections being displaceable, a receiver including a selectable instrumentality, means responsive to signaling conditions to select said instrumentality, and means controlled by said instrumentality to control the displacement of said certain of said projections.

, 10. In a telegraph system, the combination of a plurality of transmitting contacts, cam means for controlling said contacts, means for controlling said cam means comprising a plurality of pairs of code bars having code projections on their edges, certain of said projections being displaceable, a receiver including a functional instrumentality, means responsive to signaling conof means,

ing conditions comprising a selectable instruditions to select said instrumentality. and means controlled by said iinstrumentalityto eilfect the displacement or said certain of said projections to alter the'control or said second recited means on said cam means.

11. In a telegraph system, the combination or a plurality or transmitting contacts, cam means for controlling said contacts, means for controlling said cam means comprising a plurality of pairs-'0! code bars having code projections on their edges, certain of said projections being displaceable', receiving means comprising a functional instrumentality, means responsive to signaling conditions to select said instrumentality, and a lever system controlled by said instrumentality to efiect the displacement ofsaid certain or said projections to alter the control of recited means is operating under saidcertainsaid second recited means on said cam means.

12. In a telegraph system, the combination of a plurality of transmitting contacts, cam means for controlling said contacts, \a selector mechanism for exercising a predetermined control over said cam means comprising a plurality of pairs of code bars having code projections, certain of said projections being displaceable, a receiver comprising a functional instrumentality, means responsive to signaling conditions to select said instrumentality, and means controlled by said instrumentality and efiective to displace said certain of said projections to alter the control exercised by said selector mechanism.

13. In a telegraph keyboard mechanism, electrical contacts, means for operating said contacts for the transmission of code signals, a perforator, a plurality of key levers, a set or code bars movable transversely of their length by said key levers upon their actuation, means common to said contacts and said perforator and operated by said code bars for conditioning for operation said contacts and peri'orator simultaneously, and means efiectiveunder certainoperating conditions for altering, through said code bars, the condition or said contacts and said periorator irrespective of the period of actuation oi.

said key levers.

. 14. In a telegraph mechanism, electrical contacts, means for operating said contacts for the transmission or code' signals, a per'iorator, a plurality' of key levers,

upon the operation of the key levers in varying a set or code bars movable instrumentality and efi'ective while said second operating conditions, for automatically varying the control exercised by said second recited means.

17. In atelegraphsystem, the combination of a transmitter, means, for exercising under certain operating conditions a predetermined control over said transmitter, a receiver responsive to signaling conditions comprising a selectable instrumentality, and means controlled by said instrumentality and effective .while said first recited means is operating under said certain operating conditions for automatically-varying the control exercised by said first recited means.

18. In a. telegraph system,-. the combination or a pertorator, means ,ior exercising. a predetermined control over said'pertorator, a receiver responsive to signaling conditions comprising a selectable instrumentality, and means controlled by said instrumentality for varying the control exercised by said first recited means.

19. In a telegraph apparatus, a periorator I comprising a plurality of punch interponents, means for controlling said interponents, a selector mechanism for exercising a predetermined ocntrol over said means, a receiver responsive to signaling conditions comprising a selectable in- I strumentality, and means controlled by said instrumentalityand effective through said selector mechanism for varying the control exercised by said selector mechanism. I

.20. In a. telegraph apparatus, a plurality of signal determining means, selector mechanism for exercising a predetermined control oversaid means, a movable carriage, tabulatingmechanism effective under control of said selector mechanism to control the uninterrupted advancement oisaid carriage through a plurality of spaces at permutations, means common to said contacts and said periorator and-operated by said code bars for conditioning'said contacts and perio rator simultaneously, and means eiIective under certain operating conditions to. alter thepermutative setting or said code bars irrespective of the period or operation of the key levers. 15. In a telegraph mechanism, a plurality o signal determining means, a plurality of key levers, a set of code bars movable upon the operation oi the key levers in varying permutations,

means common to said plurality of means for efiecting the operation or said plurality of means 'simultaneously, and means effective under certain operating conditions for altering, through said code bars, thecondition or said plurality of said key levers.

16. In a telegraph system, the combination of a plurality of signal determining means, means for exercising under certain operating conditions a predetermined control over said plurality receiving means responsive to signalmentality, and. a lever system controlled by said means irrespective of the'period' or operation or a time, and means controlled by said tabulating mechanism to vary the control exercised by said selector mechanism during said uninterrupted advancement of said carriage.

21. In a, recorder, selector mechanism responsive toreceived code combinations of signaling impulses, a carriage movable normally one character space for each recording operation, means controlled by said selector mechanism for causing said carriage to advance uninterruptedly through a plurality of spaces at a time from one recording position to another, a keyboard selector mechanism, a plurality of signal determining means normally controlled by said keyboard selector mechanism, and means included in said first mentioned selector mechanism and effective under the control of said first recited means tovary the control of said keyboard selector mechanism over said signal determining ulator mechanism responsive thereto, a tape per- Jorator responsive to said keyboard, a tabulator responsive to said keyboard, and means in said tabulator to control said periorator.

27. In a telegraph system, a keyboard, a cyclic transmitter controlled by said keyboard, a tab- -ulator mechanism responsive to said transmitter to advance one unit of distance for each cycle of operation of said transmitter, means in said tabulating device to control said transmitter to operate continuously in repeated cyclic operations, further means in. said tabulating device to advance the carriage oi said device three units oi distance for each of said second mentioned cyclic operations of said transmitter, and a tape perforator controlled jointly by said keyboard and said transmitter and operated invariably once for each cyclic operation or said transmitter.

28. In a telegraph system, a keyboard, a cyclic transmitter controlled by said keyboard, a tabulator mechanism responsive to said transmitter to advance one unit of distance for each cycle of operation of said transmitter, means in said tabulating device to control said transmitter to operate continuously in repeated cyclic operations, further means in said tabulating device to advance the carriage of said device a plurality of units of distance for each cyclic operation of said transmitter, and a tape periorator controlled jointly by said keyboard and said transmitter and operated invariably once for each cy-' clic operation of said transmitter.

29. In a telegraph system, a tabulator device, a keyboard transmitter controlling said tabulator device to exercise reverting control upon said keyboard transmitter, means to advance the carriage of said tabulator device in stepping manner through unit distance per step, further means for advancing the carriage of said tabulator device in continuous 'movement through a plurality of unit distances, a tape perforator, and means to operate said pertorator once for each unit step of said tabulator device when operating in stepping manner and once for each three unit distances or carriage movement of said tabulator devices when moving in continuous manner.

assasaa 30. In a telegraph system, a tabulating device, a keyboard transmitter controlling said tabulator device, means toadvance the carriage of said tabulator device, means to advance the carriage of said tabulator device in stepping manner through unit distance per step, further means responsive to keyboard transmitter control for advancing the carriage of said tabulator device in continuous movement through a plurality of unit distances, a tape peri'orator, and means responsive to said tabulator device to operate said periorator repeatedly when said tabulator device is advancing in continuous movement, the number of operations of said peri'orator being smaller than the number of carriage unit distances trav-- ersed by said carriage.

31. In a selector mechanism, a plurality of pairs of bars having selection determining means, means for rendering certain of said selection determining means independently displaceable, and means eii'ective under certain operating conditions to control said second recited means to ei'iect through the instrumentality of said bars the displacement of said certain of said selection determining means.

32. In a selector mechanism, a plurality 01' pairs 01 bars having selection determining means, means for rendering certain of said selection determining means independently displaceable, and means eflective under certain opcrating conditions to control'said second recited means to condition said certain of said selection determining means for displaceability.

v 33. In a keyboard mechanism, a series of key levers, a plurality of pairs or bars havingselection determining means co-operable with said key levers, means for rendering certain of said selection determining means independently displaceabie, and means effective under certain operating conditions to control said second recited means to effect, through the co-operative relationship between said key levers and bars, the displacement or said certain oi! said selection determining means.

34. In a telegraph apparatus, a platen, type carrying mechanism, means for producing relative movement between said platen and said type carrying mechanism, a pluralltyor signal determining means, selector mechanism for exercising a predetermined control over said means, tabulating mechanism eflective under the control oi said selector mechanism to control uninterruptedly the relative movement between said platen and said carriage a predetermined amount, and means controlled by saidtabulating mechanism to vary the control exercised by said selector mechanism during said uninterrupted movement.

ALBERT H. REIBER.

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