US2225657A - Telegraph message classification system - Google Patents

Description

Dec. 24, 1940. L. M. Pb'r'rs V TELEGRAPH MESSAGE CLASSIFICATION SYSTEM' Original Filed Jan. 17, 1929 5 Sheets-Sheet l De.24,194o. L, M POTTS 2,225,651

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ATTORNE Dec. 24, 1940. L. M. Po'r'rs 2,225,657

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TELEGRAPH MESSAGE CLASSIFICATION SYSTEM Original Filed Jal-1. 17, 1929 5 Sheets-Sheet 5 /F/G. /O

F/G. j] 995 mvENToR A imams, xloa, UCl85` EKISQ ou/s M. P07715 5 8% E ATroRNEY Patented Dec. 24, 1940 UNITED STATES TELEGRAPH MESSAGE CLASSIFICATION SYS TEM

Louis M. Potts, Evanston, Ill., assignor to Teietype Corporation, Chicago, Ill., a corporation of Delaware Original application January 17,1929, Serial No.

Divided and this application March 30, 1933, Serial No. 663,483. Renewed March 56 Claims.

This invention relates to telegraphic signaling systems adapted for the transmission of news items of classiable nature, such as, pri-ces of stock, grain and merchandise, and is a division of application Serial No. 333, 161, filed January 17, 1929.

The large number of stocks listed in the modern stock exchange and the vast number of transactions and reports of such transactions upon a ticker tape have produced such a mass of reports thereon that a person `who is interested in but one or a few particular stocks is seriously burdened vby the necessity to consider all quotations of the total daily ticker tape to find those quotations which are of interest to him. To submit and make possible the expeditious consideration of particular quotations, this invention provides for recording upon one tape the reports of one stock or of any desired number of individually selected stocks or items to the exclusion of all other stocks. If, when editing the ticker tape for publication or for retransmission to provide individual service on particular stocks, one editor is unable to handle the quotations expeditiously, then several editors are employed, each editing the records of a group of specified stocks, and to simplify editing of the reports this invention provides for printing before each editor a tape which contains only the reports of all stocks allotted thereto.

Accordingly, the object of this invention is to provide a system including a set of printing telegraph machines upon each of which are recorded the reports pertaining to a group of stocks comprising in total the reports of all of the listed stocks and/or further to provide for recording on a printing telegraph machine the reports of a single stock or of selected stocks.

These objects are attained by providing a group of selectively activated printers, and by providing in cooperation therewith a selector upon which allitems are registered, the selector being adapted to cause a selection among the printers in accordance with the registeration. l

At the transmitting station, the several quotation messages are made uniform in structure so that the transmission of each such message shall constitute a succession of code signals in the order of l(1) stock name or symbol in letters, (2) price in figures with a fraction and (3) range index. At the receiving station, the code signals for the stock name are rst to be received and these are registered in selective manner to render responsive any printer or printers which have been assigned to the stock represented by the signals registered, after which the stock name of the registered signals as well as the price and range of the subsequent signals in any message, are recorded, upon the responsive printer or printers. Theacts of registering the stock name or symbol and renedering a printer or printers responsive in accordance therewith is repeated in full cycle for each andevery message. The printers thus rendered responsive may be grouped in any manner suited to the traic and any specified stock may appear in one or more groups, at the same time being sole to one or more printers, all as desired.

This invention contemplates the continuous transmission of an indefinite number of generally similar but speciiically classiflable telegraphic messages over a path of communication, the automatic classification of the messages by the re ceivlng mechanism, the automatic selection by the receiving mechanism of a destination or of a further path identifled with the classification of a current message, and the ultimate propagation of the entire message into the selected further path. Each message is classified according to the leading part of the message and a sufhcient part of the message is recorded in a selector to cause the selector to identify the further destination or path to be used, the selector having the further function of storing in reproducible form the signal impulses which have operated it to eiect the selection.

In the specific embodiment chosen for illustration, the messages are stock-market quotations each comprising a stock code of one or more letters followed by a series of figures for prices and containing at times also a character other than iigures and forming a part of the message. In these messages, the letters of the message form the leading part upon which classication is based, which operates the selector and which is stored in the selector in reproducible form. The remainder of the message also is stored by means auxiliary to the selector, and a repeater distributor is arranged to retransmit the entire message from the two storagev devices; namely, selector and the auxiliary means.

In the selectable further paths above referred to there are connected a number of printers, which may be of stock ticker design, such as disclosed in Patent No. 1,821,110, issued September 1, 1931, to S. Morton et al. wherein is described a siximpulse printer, five impulses of the received code acting to position a typewheel selectively, and the sixth impulse acting to select one or the Vother of two case shift platens or hammers for printing, after which the mechanism operates the selected hammer to press a record tape against the typewheel and thereafter operates to feed the record tape into its next printing position. A single printer may print quotations for several stocks, or for all stocks beginning with a specified first letter, or for several first letters, as A to G, or a printer may print the quotations of a selected list of stocks and a companion printer may print all others." and a specific stock may be printed by several printers as desired.

A better understanding of the invention may be had from the following description, taken in connection with the accompanying drawings wherein,

Fig. 1 is a circuit diagram of the transmitter keyboard mechanism in one embodiment of the invention,

Fig. 2 is a view of a detail of the improved keyboard as shown in Fig. 1,

Fig. 3 is another view of the detail of the keyboard shown infFig. 2 with the locking members shown in operated position,

Fig. 4 shows a detail of the lock restoring mechanism with the locking members in locked position, Y

Fig. 5 is a top view of a part of the keyboard and of the lock restoring-members with the locking members in locked position, v

Fig. 6 is a chart of codes suitable for a telegraphic system using this invention,

Fig. '1 is a circuit diagram of a distributor for routing the indicating impulses into the desired local circuits,

Fig. 8 shows details of a selector,

Fig. 9 shows further details of the selector of Fig. 8,

Fig. 10 is a diagram of an arrangement of selective stock tickers for use according to this invention,

Fig. 11 is a diagram of the potentials indicated elsewhere by symbols,

Fig. 12 is a view of a tape with records according to this invention, and

Fig. 13 is a chart of code signals for control of start-stop recorders.

A keyboard mechanism I, Fig. 1, comprises eight sets of keyboard sections 1| to 18, of which 1| to 13 each comprise a complete set of standard telegraph typewriter keylevers 19, one for each letter of the alphabet, sections 14 to 16 each comprise ten keylevers 8 l, one for each of the ten digits from 0 to 9, section 11 comprises seven keylevers 82, one for each of the fractions from 1/8 to 'V8 including a break key for no fraction" and an extra blank keylever 83 for the start operation, and section 18 comprises four keylevers 84 to 81, one each for closing, opening, high and low quotations respectively. f

These keyboard sections may be of any construction in which the levers operate electrical contacts in various combinations, as for example, in the manner shown in the patent to L. M, Potts, 1,299,608, issued April 8, 1919, or the patent to E. E. Kleinschmidt, 1,567,392, issued December 29, 1925, for Generating code combinations of impulses, although it will be understood 'that these patents are cited as illustrations and that any other transmitter such as the keyboards used for call indicators in automatic telephone exchanges may be utilized.

In the illustrated embodiment, keylevers 19 on keyboard 1I selectively operate flve contactors- 9| between contacts 92 and 93 in various combinations, and as described in the patents referred to above, each keylever 19 will operate these contactors in individual combinations. Contacts 92 are connected in multiple over conductor 94 to negative generator 95 and through a resistance 96 to ground while contacts 93 are connected in multiple over a conductor 98 to positive generator 99 and through a resistance |88 to ground. All keylevers on keyboards 1|, 12, and 13 control similar contactors.

Levers 8| on the keyboards 14, 15, and 16 comprising each ten digits, selectively control four contactors |05 operating between contacts |86 and |81, connected to generators 95 and 99, and upon depression of any one of keylevers 8|, combinations of four contacts are closed as is well-known. Keybank 11 similarly controls combinations of three contactors |95 for providing the necessary seven codes for the fractions and keylevers 84 to 81 each control one contactor |85. Key lever 83 controls contactor |95.

Upon operation of a keylever 19 in bank 1| a locking mechanism operates to lock the operated key in position and to lock the remaining levers on the bank against operation during transmission of a code, then magnet lll associated with the keyboard operates for releasing the operated key to return from its operated position, and to release all levers of that keyboard to permit operation, which prevents the operation of more than one key in any one keyboard during the transmission of a code of signal impulses.

Details of the latching mechanism are disclosed in Figs. 2 to 5, in which each of the keylevers 19 is pivotally mounted ,on a pin H5, and is provided with an upward arm |2| and lug |22 and with downwardly projecting lugs ||6 in combinations on the under edge thereof which coact with levers I|1 pivoted on pins |I8 and operate contact closers such as 9| between their contacts 92 and 93. In response to the operation of a keylever 19, Fig. 2, one or more levers l I1 will be operated, as shown in Fig. 3, to operate in l turn the contact closers 9| associated with them.

A locking lever |24 fixed to rocking shaft |25 journaled in the frame, and under tension of -spring |26 from lever |24 to the frame, has a held down by bar |23 in operated position. The

latch |21, rotatable on pivot |28 and under tension of spring |29 attached to pin 3| and to the frame,.has an arm |32 which carries a universal bar |33 extending beneath all of the keylevers 19 of the one keyboard.

Under idle conditions, with all keylevers 19 in non-operated position, spring |29 maintains universal bar |33 in engagement with the lower edges of all of the keylevers, and upon the operation of any lever the universal member |33 is pushed down and latch lever |21 is rocked to disengage lever |24, permitting spring |26 to rock lever |24 to move lock bar |23 to a position shown in Fig. 3, locking all non-operated keylevers against operation and locking the depressed keylever in operated position.

Restoring or unlocking magnet Figs. 1, 4. and 5 is provided with an armature |34 fixed upon rocking shaft |25, so that upon energization of magnet shaft |25 is rocked to move bar |28 away from all lugs |22, unlocking the depressed keyleverto rise and to permit bar |88 to rise, whereby spring |29 may rotate latch |21 into its normal position, Fig. 2, under arm |24,

thus conditioning all keylevers of the one key.-v

board for operation, and holding the lever |24 after the deenergization of magnet Referring again to Fig. 1, each oi' the contact controllers 9i is connected over conductors such 10 as |4| individual thereto to individual segments |42 on a distributor |48 which comprises a rst section composed of a segmental ring |44 and a solid ring |45 bridged by brushes |48 and |41 and a second section comprising a segmental ring |48 and a solid ring |49 bridged by brushes |50 and On ring |44. iirst segment |58 connected ,to

negative generator, is a. stop segment and second segment |54 connected to positive generator is av start segment, while the next fifteen segments are connected to fifteen contact controllers 9| on the first three keybanks 1| to 18, the succeeding twelve segments are connected to contact controllers |05 of keybanks 14`to 18, the next three segments are connected to contact controllers on keybank 11, and the next four segments are connected. to contact controllers |05 on keybank 18 and lowermost segment on ring |44 is shown unconnected. Solid ring |48 is connected toa signaling line |55 extending to a receiving apparatus for transmitting thereto the codecombinations generated by keybanks 1| to 18. For each cycle of operation of this giant start-stop distributor there are transmitted three letter characters, three numbers, a. fraction, and at times a control signal, in which cycle the same com-- bination of impulses may be used for a letter, for a number and for a fraction, and instead of determining by a shift signal which character is a ,m letter and which a number, this is determined by the position of the code combination with respect to the start impulse.

Ring |48 is provided with eight segments |58, each so positioned with respect to permutative 45 segments on ring |44 that brushes |50 and |5| when in rotation pass thereover immediately after brushes |46 and |41 have moved over the corresponding permutative segments, a segment |58 being connected over conductor |59 to magnet I, associated with the keybank 1| and the other segments on ring |48 are connected to corresponding magnets and solid ring |49 is connected to a battery. When brush |50 engages any segment |56 a circuit is completed through the associated magnet which upon energization restores the latching mechanism for permitting the restoration of the keylevers.

Brushes |46, |41, |50, andg|5| are carried on arm |6| in operative relation with a friction clutch 60 |62 which is carried by and rotatable with a driving shaft |63 which also carries a gear |64 and a spring to compress the friction clutch while the gear |64 meshes with pinion |66 carried on drive shaft |61 of a direct current motor |68 com- 65 prising an armature |89 and field winding |10, the latter connected at one terminal through a resistance |1| to a source of energy and at the other terminal to ground. Upon the same shaft with the armature |69 is an alternating current motor |13 which is connected through a lamp |14 to the secondary of a transformer |15, the primary oi this transformer being connected to two contacts |16 and |11 of a contact spring |18 mounted on one of the tines of a tuning fork |19, which is connected to a source of energy. A circuit for an electromagnet |8| is periodically closed through a contact engaged by spring |82 mounted on the other tine of tuning fork |19, so that when the tines are spread, a circuit for the electromagnet |8 is closed from positive battery through 5 fork |19, through spring |82 and contact (now closed), winding of magnet |8| and resistance to ground and the magnet thus is energized to bring the fork tines together. .In the spread position, current liiows through contact |11 and the right- 10 hand half of the primary of transformer |15 to ground, while with the tines closed, spring |18 closes contact |18 and completes a circuit through the other half of the primary winding and in the opposite direction, so that periodical reversals of 15 current are produced inthe primary of transformer |15 which in turn induce an alternating current of a predetermined frequency in the secondary of the transformer which flows through the alternating current motor |18. The tines of 20 the tuning fork |19 are made to vibrate at a predetermined frequency, then are kept vibrating at this frequency by theelectromagnet |8|. and accordingly currents of a constant frequency ow through motor |18 which produces rotation at a 25 speed determined by the frequency of the current flowing therethrough. This frequency control system is more clearly described in U. S. Patent No. 1,764,316 and is illustrated in Fig. 1 of that patent.A v 30 Arm |8| is normally latched against rotation by a latching armature |9| pivotally mounted on frame |92 of magnet |98. When the magnet |93 is energized, it moves armature |9| and releasesl arm |6| for rotation. Magnet |98 is connected 35 over conductor |94 to a contact controller |95 on the keybank 11, which is arranged to be closed upon the operation of any of the keylevers 82 or v83 on keybank 11.

In order to transmit a'quotation of a particular o item, the operator first depresses a keylever on each of the rst three keybanks 1| to 18 for transmitting a code to selectthe terminal printer to which the quotation is to be transmitted, which code when received will `select the recorder as- 45 signed to the particular item indicated. The operator will also depress one of the keylevers on each of the banks 14 to 18 which will prepare codes individual to the digits making up the quotation for the indicated item, and also one of the 5o levers 82 on the bank 11 to transmit a code for the fraction in the quotation and a keylever on bank 18 when and if it is desired to transmit a code indicating whether the quotation is close, opening, high, or low. Upon the depression of 55 any keylever in banks 1| to 18 the other keylevers in each such bank are locked from operation and the depressed keylevers are locked in depressed position. Depression of any keylever 82 or 83 closes the contact |85 and energizes magnet |93 50 to start the distributor, as a result of which the arm I 6| is thereupon driven by the motor |68. With the brushes resting on stop segment |53, current from negative generator ows over line |55 as a normal stop condition and when brush 55 |46 moves to the next or start segment |54, positive generator is connected to the line |55 from segment |54, brushes |46 and |41 and ring |45, which current will function to release a distributor located at the receiver similar to the distribu- 70 tor described above.

As brush |46 rotates over the first ve segments |42, a code is impressed upon line |55 in accordance with the positions of contact controllers 9| operated by the depression of key- 75 levers 18 on the bank 1|, the impulses being transmitted from sources of energy 95 or 89. As brush |46 moves over the next ilve segments a code is transmitted in accordance with the contact controllers operated on bank 12 and the same is repeated during the next ilve segments in accordance with the contact controllers operated on bank 13. As brush |46 moves over the next four segments, .a code is transmitted comprising a combination of four impulses individual to a digit, and the same occurs during the next two groups of four segments each, the codes transmitted being determined in accordance with the contacts operated on keybanks 16 and 16. During the further movement of the brush over the next three segments, a code of three impulses indicating a. fraction value is transmitted, and as brush |46 moves over the next four contacts, a signal is transmitted in accordance with the depression of a keylever, if any, on bank 18 to indicate a characteristic of the quotation which has been transmitted.

Rotating with brushes |46 and |41 are brushes |50 and I5| and when brush |50 engages segment |56,l a circuit is completed for the magnet I I I associated with bank 1 I, from ground through winding of magnet III, conductor |59 and through segment |56, brushes |50 vand |5I to ring |49 an-d battery, which is completed immediately after the code recorded on bank 1| has been transmitted, and results in the energization of magnet III, and the operation of the locking mechanism of Figs. 2 to 5 to release the keylevers on bank 1 I thereby conditioning the keylevers for reoperation, permitting the operator to operate another keylever for the next quotation to be sent without waiting until all of the codes for the preceding quotation have been sent. The apparatus at the transmitting station is normally in non-operated condition and upon the operation of keylevers in banks 1| to 11 the distributor |43 is released to make a single revolution during which time the codes are successively transmitted over conductor |55. A similar transmission may be effected by an automatic transmitter controlled by a perforated tape.

Signaling line |55 may extend to a polar :relay 1II, Fig. '7, at a receiving station, whose armature 1I2 is connected over a conductor 1|3 to a ring 1 I5 of a distributor 1I6, comprising ring 1 I5, a rst segmental ring 1|1 and a second segmental ring 1|8, bridged by brushes 1|9 to 12| which are carried on an arm 122.

A starting signal from segment |54, Fig. 1, over line wire |55 will operate polar relay 1I I, Fig. 7, to close its armature 1I2 to negative battery and thus clo'se a circuit through wire 1I3, brushes 1|9 and 12|, and top segment of ring 1|8 through starting magnet 1 I4 to positive battery, for energizing magnet 1|4 to operate its armature to release brush-arm 122 which then rotates by power of motor and friction clutch, not shown, but similar to that shown in Fig. 1.

The iirst fteen code segments of ring 1I1 are connected over conductors such as 123A and 124 to associated individual marking selector magnets 125 and 126, Fig. 8, there being a marking magnet for each of the rst fifteen code segmentsalthough only two such magnets are shown.

The first fifteen segments on ring 1|8 are connected over conductors such as '|21 and 128 to spacing selector magnets -such as 129 and 130 respectively, there being fteen such selector magnets for the rst fifteen code segments. Selector magnets 125, 126| 129, and 130 control notched permutation bars 13| and through those notched bars they control code bars 132 individual to stocks or commodities. which cooperate with releasing magnet 134 and switch operating magnet 135 to control selectively a group of contacts 136 and also a contact |001 which in turn controls circuits over conductors I|I2 and |I|3 extending to relays |00I, |002, |003. |004, Fig. 10, each representing a stock item or a` group of such.

While the brushes 1|9 to 12| are rotating over the first fifteen segments in synchronism with brush |48, Fig. 1, selector magnets 125 to 126 and 129 to 130 are energized to select a group of contacts 136 to be closed, individual to the particular stock or commodity, and while brush 12| rotates over the remaining segments on ring 1|8, a bank of polar relays 19| to 809 are selectively operated in accordance with'the operation of the polar relay 1II by impulses received over conductor |56, these impulses being codes for numbers, fractions and range. Relays 19| to 809 accordingly operate their armatures in accordance with the polarity of impulses which operate relay 1||, and the armatures of these relays in turn control circuits from battery to conductors 849.

Segmental ring 1|1, in addition to iifteen segments connected to selector magnets, is provided with a special segment 86| near the end of revolution of brush 120 which is connected over a conductor 862 to a magnet 863, Fig. 9, provided with an armature 864 normally held in its retracted position by a spring 865 in the path of Yan arm 866 carrying brushes 861 to 869 of a distributor 81|, comprising rings'812 to 814 bridged by brushes 861 to 869 on arm 866 which is driven by a motor (not shown) through clutch 810. Ring 812 is provided with a sector 815 which is connected to battery and ring 813 comprises a stop segment 811 on which the brush 868 normally rests and a segment 818 connected over a conductor 819 to magnet 134 which releases the code bars 132 that the selected one may unlatch its group of contacts 136.

In operative relation with each pair of mag- Figs. 8 and 9, each having a series of equally -spaced notches. in its upper edge and a notch in its lower edge, and each under tension of a spring winch draws the bar toward the armaturel of the marking magnet 125, whose attraction and operation may move the permutation bar so that armature of the magnet 129 then may engage the notch in the lower edge of the permutation bar to restrain the bar against the action of `the spring until such time as the spacing magnet may be energized to withdraw its armature. In this manner all of the fifteen permutation bars 13| may be positioned selectively in accordance with a received code.

Pivoted at 133 and just above the permutation bars 13| are selector code bars 132 arranged so that each code bar .132 crosses all permutation bars 13|, each code bar 132 being provided with a series of equally spaced lugs, one lug over each permutation bar, each lug being bent to the right or to the left of the plane of the code bar, by which bending each lug will either be over a lug or over a notch, optionally, of a permuta- 'tion bar in the spacing position. Each code bar 132 is individual to an individual corresponding code of impulses by which the permutation bars may be set in code position, so thata speciiic .code bar may havenotches in all permutation Sil gized momentarily under bars 13| which correspond to spacing impulses in the code, and the lugs of the responsive code bar 132 will be bent to be then over notches in the spacing-signal permutation bars, while magnet 125 will be energizled momentarily under bars 13| which correspond to marking impulses in the code and the lugs of the responsive code bar 132 will be bent to be then over notches in the marking-signal permutation bars. Code bars 132 are pivotally mounted on a common pivot at 133 and are urged toward the permutation bars by springs not shown. The code bars are held up by a universal member 131 carried by a spring-tensioned bellcrank member which is operated by the armature of solenoid magnet 134 which, when energized, lowers the member 131 land permits all code bars 132 to move into engagement with permutation bars 13|. All code bars will be stopped by one lug br more engaging lugs on permutation bars except that there may be one its individual switch 136.

only selected code bar which will have notches under all lugs and which, therefore, will move farther.

Positioned under the free ends of codebars 132 are latches 138 on a common pivot 139 and each latching its associated switch bar 190 against movement by tension of the contact springs in All switch bars 140 may be engaged and rotated counterclockwise by a single universal member 14| carried by a rocking lever 162 pivoted at 143 and operated by armature 144 of solenoid 135, when energized over wire 145 and segment 146 in distributor 81|.

When brush 120, Fig. 7, engages segment 86|, a circuit is closed from either battery of armature 'H2 through ring 1|5, brushes 1I@ and 120, seg-` ment 86|, wire 662 and magnet 863, Fig. 9, to ground, operating armature 869 and releasing brush arm 866. Immediately thereafter brushes 861 and 869 close a circuit from battery through segment 146, wire 145, and solenoid 135 to ground,

. operating the universal member 16| to restore any previously operated switch bar 140 and to lift all switch bars 140 from their latches 138 to render the latches free to move, and simultaneously brushes 661 and 868 close a circuit from battery through segment 818, wire 819, and solenoid 134 to ground, operating universal member 131 and releasing all code bars 132, to permit a selected code bar to operate its latch 138 to clear the shoulder of the switch bar 140. Segment 146 ,is shorter than segment 818, so that the circuit of solenoid 135 is interrupted and member 14| per mits all switch bars to move clockwise to engage their several individual latches, the selected switch bar not engaging its operated latch and,

therefore, moving enough to permit its switch 136 tov close its contacts, including contacts |001.

The operation of the complete selective system is as follows:

Codes of impulses received over conductor |55, Fig. '1, variably operate polar relay 1I I to move its armature 'H2 between its two contacts. Normally, armature 1|2 is in contact with positive battery and start magnet 1|4 is also connected to positive battery and, therefore, is unenergized, but upon receipt of a starting impulse, armature 1 I 2 engages negative battery and a circuit is completed over armature 1 I 2, conductor 1|3, ring 1 I5, brushes 1|9 and 12 I, first segment of ring 1|8 and winding of magnet 1|4 to positive battery, energizing magnet 1|4 to release arm 122, which with its brushes 1|9 to 12| now is rotated by a motor, as in Fig. l. As brushes 120 and 12| move over the lrst fifteen segments of rings 1|1 and 1|8, circuits are completed alternatively to either the marking magnet 125 or spacing magnet 129 of each pair, depending upon the operation oi' the armature 1|2 of the polar relay 1| I in response nto impulses over conductor |55, thus setting the permutation bars 13| to select a code bar 132 forl operation. Y

As brush arm 122 rotates further, positive or negative impulses are transmitted to polar relays 19| to 809 through armature 1|2, ring 1|5, brush 1I9, brush 12|, and segments of ring 1|8, relays 19| to 808 and ground.

During the rotation of arm 122, brush 120 engages segment 86| and a circuit is completed from either polarity of battery at armature 1|2, over conductor 1|3, ring 1|5,` brushes 1|9 and 128, segment 86| and conductor 862, the starting magnet 363 and ground, operating armature 861| to release arm 866 for rotation, and as brushes 868 and 869 engage segments 818 and 146, circuits are completed fory magnets 134 and 135 which restore the prior operated switch bar 140 and operate the now selected switch bar 140 as has been made clear above, to close the selected contacts |001.

Incoming price signals now have been stored in the primary relays 19| to 809 and by reason of that storage they are manifested as positive and negativepotentials upon Wires 949, Figs. 7 and l0.

In Fig. 10, there is illustrated diagrammatically a system showing several stock tickers or printers individually operative under various conditions of ticker selection. Printers of the class preferably employed in this capacity are oi the start-stop type such as is shown in the Patent No. 1,821,110 to Morton et al. above referred to. Characteris tic of this class of device is the particular signaling system where in addition to the six`code impulses there is a preceding start impulse and a concluding stop impulse. In order to cause the stock quotation signals employed in the transmission system herein disclosed to conform to the peculiar requirements of start-stop printers, distributor 95| is provided and the translation is performed as follows:

Ring 950 is divided into a plurality of segments, the first of which is connected to positive battery to produce a marking signal or stop impulse, so that the printers will not be operated while distributor arm 955 is at rest, and a start magnet 951 is connected over control line 96| to the bottom segment of ring 1|1, Fig. 7, and is operable over a circuit which is closed momentarily just before distributor 1|6 stops. Energization of magnet 951 retracts armature 956 against the pull of its spring and permits distributor arm 955 to st art and make a complete revolution.

The second segment on the ring 959 is permanently connected to negative battery to produce a starting impulse to start the selected printer for a single operation. The five segments following are electrically controlled by the corresponding rst ve code bars 13| of the selector, Figs. 8 and 9, through a lug 961 upon each code bar 13| which engages a contact spring 964 sothat when the code bar 13| is in its marking position connection is made between the spring 969 and its righthand contact and positive battery, and conversely, when in its spacing position connection is made between the spring 864 and its left-hand contact and negative battery, so that each of the five segments 962 assumes a potential corresponding to the Position of its corresponding code bar 13|.

The eighth segment corresponds to the sixth code lmpulseof a code for the printer and functions as a shift signal to condition the printer mechanism to print a letter in response to the 6 five signals upon segments 3rd to I7th inclusive of the ring 950.

The ninth and seventeenth segments of the ring 950 are the same as the first and represent the cessation of the cycle in the ticker. Each is fol- 10 lowed by a negative start segment, five code segments, and a letter-case shift segment, and the twenty-fifth segment is a stop-signal segment. When brush 954 reaches the twenty-fifth segment, the three letters of the quotation message will have been transmitted over ring 952 to all printers connected therewith, and the next cycle of each such printer is to result in a figure printing operation. The figures code requires but a four-impulse permutation and is accompanied by 20 a fifth impulse which is always negative and a sixth impulse which ls always positive. Accordingly, the twenty-sixth segment is a negative start segment. then follow the necessary four segments for the figure identication, controlled by relays son, 19|, sul, 192. over wires 949, and a permanently connected negative fifth code segment, a permanently connected positive segment for the iigure-case shift signal and a permanently connected positive segment for the stop signal. The arrangement of any particular code of transmission is, of course, a purely arbitrary allotment so that while certain of the code combinations herein disclosed may diil'er from those of corresponding characters in other systems, it will be understood that a uniform plan is intended. A suitable code ls disclosed in chart form in Fig. 13. The two succeeding printing cycles are similar to the one just described and are followed immediately thereafter by the fraction segments 99| 40 of which there are but three and after which there follow three positive segments to produce the standard six impulse code interval. The nal cycle during which the characteristic or range signal is transmitted requires buttwo variable impulses in the permutation, hence there are provided but two connected segments 982. remaining four segments two are connected to negative battery and two to positive battery. These impulses are followed by the stop impulse from the first segment, after which the cycle repeats. Reference numerals 988 to 990, 992 and 994 indicate printers such as referred to above, magnets 993 to 991 being receiving magnets for code 56 impulses, and the several printers are variously connected so that only certain ones of them operate under predetermined conditions of selection. For example, the printer 988 is provided with a control relay |00| which in turn is con- 60 nected to contacts |001,` |008, and |009 carried on selector banks, as 138, Fig. 9, so that when any of these particular stock selections are made effecting any of these contacts by shifting them, then, and then only, the printer 988 is rendered eifective to record the stock quotation, while relay |002 of printer 989 is connected to the contacts |005, |006, and |0|0, so that this printerk is operative only during the selection of any of the three corresponding stocks. Printers 990 and 992 are connected to operate alternatively by contacts of relays |003 and |004 of which only one contact may be closed at any one time, and whereby during any stock selection the printer 990 is rendered operative while at all other times the printer 992 is in operative condition, The

selector of Figs. 8 and 9 thus constitutes a pilot means which, by its selective contacts |001 and others, determines selectively a path for transmission of impulses from its storage contacts 964, Fig. 10. 5

It will be seen that in accordance with the present invention there are provided several convenient modes of associating printing mechanisms with the selecting system. These modes may be varied in accordance with particular re- 10 quirements as they arise, such as for example, in the case of stock specialists Ywhere only certain stocks are required to be recorded.

In the operation of this invention the speeds at which the printer and distributors are opl5 erated are suitably controlled.

Final code segments 982 transmit a code to the printer in accordance with the setting of two storage relays 199 and 809, to print a dis- Y tinctive mark on the printer tape indicating the 20 type of quotation that has been'received, such as an arrow mark pointing upward or downward, Fig. 12, to indicate a new high or low quotation price.

An overlap is provided by arranging that the 20 brush 954 shall start before the brush 12| stops, as a result of which the brush 954 will have at all times a cyclic position in one cycle which will be in advance of the cyclic position of brush 12| in the next cycle, and the brush 954 will use 80 each stored signal before the brush 12| resets the bar 19| or the relay 19| to 809, by which the signal is stored, and the brush arm 122 is so timed in speed that the brush 954 in distributor will complete its cycle just before the dis- 35 tributor 81|, Fig. 9, operates solenoid 135 to open the contact |001 or/and others to open the circuit over which the brush 959 has been transmitting.

Although the invention has been describedin 40 connection with a specific form thereof, it will be understood that it has further applications and it is not intended to be limited in scope by the embodiment shown herein for illustration.

The invention claimed is: 45

l. In a telegraph system, a telegraph circuit, means to transmit character code signals over said circuit, a printing recorder controlled by said signals, said recorder including shift mechanism, and means to control the shift mechanism inde- 50 pendent .of said character code signals transmittedover said circuit.

2. In a printing telegraph system, a master station, a substation, a plurality of printing recorders at the substation, a circuit connecting 55 the master station and the substation, means to transmit over-said circuit a series of signals, means responsive to part of said signals and acting to select one or more oi said recorders, and means responsive to another part of said 50 signals and acting to make record on the selected recorders.

3. In a system to record a plurality of items.

a transmitter, a plurality of recorders, an electrical connection between said transmitter and 65 said recorders, means to cause the signals correspending to any item of a selected group of said items to control one of said recorders, and means to cause the signals corresponding to any item of another selected group of said items to con- 70 trol another of said recorders.

4. In a printing telegraph system, a master station, a substation, a plurality of recorders at the substation, a circuit connecting said substation and said master station, means to transmit 75 impulse conditions over said circuit, means responsive to said impulses i'or selecting one of said recorders, means for transmitting other im-` pulse conditions over said signaling line, and means responsive to all of said impulse conditions for controlling said selected recorder.A

5. In a printing telegraph system, a master station, a substation, a plurality of recorders at said substation, a circuit connecting said master 'station and said substation, means for transmitting code combinations oi' impulse conditions from said master station to said substation, means at said substation responsive to some of said impulse conditions for selecting a group of said recorders, and means responsive to further impulse conditions for operating the recorders of said selected group.

6. In a stock quotation system, a plurality. of recorders, an electrical circuit, meansto transmit over said circuit a series of code signals, certain oi said code signals corresponding to stock designations. certain other of said code signals corresponding to a characteristic of a stock, means undencontrol of a stock designation signal to select one oi said recorders, and means under control of the characteristic coode signal to record on the selected recorder the corresponding characteristic.

7. In a recording system, an electrical circuit, means to transmit over said circuit a start impulse followed by a series of code impulses, a plurality of recorders, means' controlled by said code impulses to select a recorder, and means controlled by other of said code lmpulsesto record on the selected recorder characters indicating characteristics of a stock to which said recorder corresponds.

d. in a recording system, an electrical circuit. means to transmit over said circuit a series oi permutation code impulses, a series oi recorders, means under the control of said impulses to select a recorder, means also under the control oi said impulses to record on the selected recorder characteristics representing desired characteristics of an item to which said recorder corresponds.

9. In a telegraph system wherein a plurality of messages are to be transmitted each message comprising a routing part and a body part, means for transmitting messages, a plurality of recorders, means controlled automatically by the routing part of a message to select a recorder, and means to record the message on the selected recorder.

1'0. In a telegraph system wherein a plurality of messages are to be transmitted each message comprising a routing part and a body part, means for transmitting messages, a .plurality of type printing recorders,` means controlled automatically by the routing part of a message to select a recorder, and means to record the message on the selected recorder.

11. In a printing telegraph system, a master station, a substation, a plurality oi recorders at the substation, a selector at the substation for selecting one of said recorders, a circuit connecting the master station and the substation, and means to transmit over said circuit a series of signals for operating said selector to select one of said recorders and for making a record on the selected recorder.

12. In a telegraph system, a plurality of devices operable by code-signals, a telegraph circuit, means to transmit over said circuit a series of code-signals, selector means operable by said code signals to select one o! said devices, and means in said selected device responsive to said code signals.

13. In a telegraph system, a plurality of devices operable by code-signals, a telegraph circuit, means to transmit over said circuit a series of code-signals to operate said devices, and means controlled by the same said code-signals to bring dlii'erent ones of said devices into operative condition with respect to said code-signals.

14. In a telegraph system, a plurality oi recorders, a telegraph circuit, means to transmit on said circuit a series oi' messages each message composed of a plurality of codes to operate a selected one oi' said recorders, and means controlled by certain of said codes to select a recorder and controlled by other codes to disconnect the selected recorder.

15. In a telegraph system, a telegraph circuit, means to transmit over said circuit a series of signals, a mechanical distributor controlled by said signals, a plurality of recorders adapted to be controlled by said distributor, a selector adapted to bring selectively different ones of said recorders into operative relation with said distributor, and means rendering said selector selectively operated according to said signals. K

16. In a telegraph system,two tandem telegraph circuits, means to transmit signals on the ilrst of said circuits, means4 controlled by said signals to select a receiver for the secohd of said circuits, and means to transmit on the second of said circuitsother signals corresponding to the signals first mentioned.

17. In a quotation system, a plurality of recorders adapted to record consecutive quotations, means to select a recorder according to the identity of the stock quoted, and means to record en the selected recorder, numericalv characters according to the price and other characters according to the range of the quotations.

18. In a quotation system, means to transmit a series of signals indicating the stock, the value and the range oi' a quotation, a plurality oi recorders each recorder corresponding to a stock, means to selecta recorder according to the stock signals, means to record according to the value signals, and additional means to make a special record according to the range signals.

19. In a printing telegraph system, a plurality of printers, means for selecting one of said printers, a typewheel in each printer having printing surfaces-representing figures and other printing surfaces representing ranges, and means to operate said selected printer after selection to print at times a figure and at other times a character representing range.

20. In a telegraph system, a transmitter for sending over a single channel a series of code signals representing a series of unit messages each unit message comprising a group of letters followed by a group of gures, a plurality of printers, and means to record letters and figures of some unit messages on one of said printers and letters and gures of other unit messages on another of said printers.

2l. In a telegraph system, a transmitter for sending over a single channel a series of code signals representing a series -of unit messages each unit message comprising a group of letters followed by a group of characters, two printers, means to record legibly unit messages upon one of said printers, and switching means to change .the record to the other of said printers, said `one of said two classes for automatically disabling said receiver.

23. In a telegraph system, a single channel, a transmitter for sending over said single channel a series of signals representing a succession ofunit messages each unit message comprising a group of letters followed by a group of figures, a telegraph receiver normally associated with said channel to receive said signals, and selective means responsive to said signals for disabling said receiver. L y

24. In a printing telegraph system having a plurality of printing instruments connected to record stock quotations, the method of assigning different quotations to different instruments which consists in selecting the respective instruments by the letter-portion of the quotation and then recording all of the quotation.

'25. In a. printing telegraph system, a plurality of receiving printers responsive to received code combinations of impulses, a directing receiving instrument having selectors also responsive lto some of said impulses, circuit controllers operable by said selectors, and means governed by said controllers to render at all times at least one of said receiving printers effective.

26. In a printing telegraph system, a receiving instrument having selecting mechanism respon- A sive to received code combinations of impulses, a 4Q plurality of printers, and a plurality of circuit controllers actuable by said selecting mechanism to select one of said printers and to render said selected printer responsive to said code combinations of impulses.

27. In a telegraph system in which the transmitted intelligence is constituted of groups of characters, a plurality of receiving recording instruments and means actuated by the received intelligence to render certain of said receiving instruments ineffective to record certain of said groups and permitting other of said instruments to record the same. l

28. In a printing telegraph system, a receiving instrument having selecting mechanism responsive to received code combinations of impulses, a plurality of circuits, a plurality of circuit controllers, means actuated by said selecting mechanism and actuating said circuit controllers, and printers having operating magnet windings included in said circuits governed by said circuit controllers.

29. In a unit message system in which each message comprises ar group of characters, two registers, switching mechanism, means controlled by said switching mechanism during receipt of a portion of a unit message for preparing to render one of said registers operative and the other of said registers non-operative, and means operative subsequently for completing the prepared operations.

30. In a printing telegraph system for recording intelligence characters, a plurality of receiving instruments each having selecting .mechanism responsive to permutation code combinations of selecting impulses, one of said instruments having circuit controlling means actuated by said selecting mechanism subsequent to receipt of permutation code signals representing a complete group of characters, the other instruments having printing mechanism positioned by said selecting mechanism, and means actuated by said circuit controlling means for rendering one of said printing mechanisms effective and for rendering the other of said printing mechanisms ineffective.'

31. In a telegraph system in which the transmitted intelligence is constituted of groups of characters, a plurality of receiving recording instruments, means operative during the receipt cf a group of characters to render certain of said receiving instrumentsineffective to record all characters of a subsequently transmitted group of characters and for permitting others of said instruments to record .the same.

32. In a unit message system in which each quotation or message comprises a group of characters, a plurality of registers, and switch mechanism operative upon the receipt of an initial portionof the message to be printed to render one of said registers operative and the other of said registers non-operative.

33. The method of classifying received intelligence in a telegraph system, which consists in automatically directing the intelligence into one or another predetermined channel determined by an initial portion of each group of intelligence characters. y

34. In a telegraph system wherein the received intelligence is arranged in groups of characters comprising a letter or letters followed by figures, the method of classifying said intelligence which consists in directing the groups into difierent channels determined by a certain part of each group.

35. In a telegraph system wherein the received intelligence is arranged in groups of characters, the method of classifying said groups which consists in receiving all of said intelligence upon a plurality of receiving instruments and causing a certain part of each group to select an instrument upon which the group shall be recorded and preventing the other instruments from recording the same.

36. In a telegraph system in which the transmitted intelligence is constituted of groups of characters, a plurality of receiving instruments each connected to receive all of the transmitted intelligence, certain of said instruments having means to render the recording function inoperative, and means associated with one of said instruments responsive to a certain portion of each group to determine which instruments shall function to record and which instruments shall not record the intelligence group.

37. In a. printing telegraph system for recording intelligence characters, a plurality of receiving instruments each having selecting mechanism responsive to permutation code combinations of selecting impulses, one of said instruments having circuit controlling means actuated by said selecting mechanism, the other instruments having printing mechanism positioned by said selecting mechanism, and means actuated by said circuit controlling means to render one or another of said printing mechanisms ineffective determined by a certain portion of any word or group of received characters.

38. In a printing telegraph system having a plurality of printing instruments connected to record the received intelligence, the method of financer i 9 assigning different portions oi.' the intelligence to diii'erent instruments which consists in controlling the respective instruments by a certain portion oi each group of intelligence characters. 39. In a signaling system, a source of signals comprising a plurality of groups oi' character code signals consisting solely of selecting im- .pulses transmitted in continuous succession and forming part of a single message, and mean responsive to said signals and arranged to insert rest and start impulses intermediate each character code group.

40. In a signaling system, a source of signals s comprising a plurality of groups oi.' character code signals transmitted in continuousisuccession and forming a part of a single message, a receiving distributor and means including said distributor for applying printer control conditions to each character code group.

41. In a signaling system, asource of signals :i comprising a plurality of groups oi character code signals transmitted in continuous succession and forming a part of a single message, a receiving distributor and means including said distributor for inserting a case shift condition in each character code group.

42. In a signaling system, a source of signals comprising a plurality of groups of character code signals, said groups consisting of a nonuniform number of selecting conditions, a distributor arranged to receive said signals, retransmitting means associated with said distributor and means for addingselecting conditions to said character code groups to r'ender the number oi' selecting conditions in each group uniform.

13. In a telegraph system, a printing mechanism including a vcase shift apparatus, means responsive to character control signals for effecting type printing operations, and means inde- 40 pendent of said character control signals for operating said case shift apparatus at predetermined intervals.

44. A telegraph system comprising a source of letter-code permutation signals, a pilot register', and a plurality of printers,`said pilot register responsive to all of said letter-code signals and including circuit controlling'means to distribute predetermined ones of said signals to one or another of said printers.

45. A telegraph system comprising a source of letter-code permutation signals, pilot means, and a plurality of printers. said pilot means responsive to all of said letter-code permutation signals and including circuit controlling means to distribute predetermined ones of said signals to a predetermined one of said printers.

46. A telegraph system comprising a source of letter-code permutation signals. pilot means. a plurality of printers, means for repeating said 00 permutation signals. said pilot means responsive to all of said letter-code permutation signals, and said means for repeating responsive to said pilot means to distribute predetermined ones of said signals to a predetermined one of said printers.

47. A telegraph switching system comprising a source of letter-code signals consisting of groups Vof character permutations, a pilot register, a plurality oi' printers associated therewith, said pilot register responsive to all letter-code signals received from said source, and means controlled by the selective operation of said pilot register for distributing one group of signals to one of said printers and another group of signals to another-of said printers.

48. The method of telegraph operation, which consists in separating a message into two parts, using one part to determine automatically the routing `oi.' the message, and retransmitting the entire message subsequent to its routing. 6

49. In a telegraph system, means to transmit a series of electrical signals representing a plurality of messages, each message comprising a routing part and a body part, means to receive and to store the signals. a plurality of telegraph 1o circuits. automatic means controlled by the signals oi the routing part of a message to select one of the circuits. and means to transmit over the selected circuit the complete message.

50. In a telegraph system. a plurality of-dei5 vices operable by code signals, a telegraph circuit, means to transmit over said circuit a series of code signals, selector means operable by said code signals to select one oi' said devices, and means in said selected device responsive to all of said code 20 signals for making a record thereof.

51. A printing telegraph switching system comprising a line, means `to transmit code signals over said line, a plurality of recorders distantly located to said transmitting means and respon- 25 sive to impulses transmitted over said line, a

`relay individual to each of said recorders, and

means controlled by certain of the code signals for operating a predetermined relay whereby the recorder -thereof responds to impulses trans- 30 mitted over said line from said transmitting means.

52. A printing telegraph switching system comprising a line, means to transmit code signals over said line, a plurality of recorders distantly 35 located to said transmitting means and responsive to impulses transmitted over said line, a re lay individual to each of said recorders, and means including a plurality of code bars and selectable elements controlled by certain of said 40 code signals for operating a particula selectable element to operate a predetermined relay whereby the recorder for said relay responds to impulses transmitted over said line from said transmitting means. 5 53. A printing telegraph switching system comprising a line, means to transmit over said line permutation code signals, an ofiice at which said line terminates, a plurality of recorder circuits at said oilice, a rotary distributor at said 50 ofllce, a selector associated therewith, selecting circuits controlled by said selector, means included in said selecting circuits for connecting said line selectively to one of said recorder circuits, and means for applying predetermined 55 code signals received over said line to said rotary distributor to operate said selector.

54. In a telegraph system, a plurality of devices operable by start-stop code signals, a telegraph circuit, means to transmit over said cir- 60 cuit a series of different code signals, selector means operable by certain different code signals impressed on said circuit to select any one of said devices for operation, and means for establishing the start-stop conditions for said selected 05 device whereby it responds to the code signals transmitted over said circuit.

' 55. In a. signaling system, a source of signals comprising a plurality of groups of character code signals consisting solely of selecting im- 70 pulses transmitted in continuous succession and forming part of a message, 'and means responsive to Asaid signals and arranged to insert rest and start impulses for each group of character code signals. l

controlled by the signals on the rst circuit to transmit on the second circuit signals in which the code combinations oi' impulses correspond to the code impulses of the corresponding signals on t'ne first circuit, and means for adding auto matically to each of the code combinations of impulses to be transmitted over the second circuit start-stop signals for appropriate control.

LOUIS M. POTTS.

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