US1814902A - Telegraph system for dividing received intelligence into groups - Google Patents

Description

R. F. DIRKES July 14, 1931.

TELEGRAPH SYSTEM FOR DIVIDING RECEIVED INTELLIGENCE INTO GROUPS Filed Jan. 31, 1930 '5 Sheets-Sheet l V 3mnemor .Fflzrkes Gitorneg July 14, 1931. I R. F. DIRKES 1,814,902

TELEGRAPH SYSTEM FORDIVID ING RECEIVED INTELLIGENCE INTO GROUPS Filed Jan 31,' 1930 5 Sheets-Sheet 2 Zsnncntor R 1 rkes July 14, 1931. R. F. DIRKES 1,814,9 02

TELEGRAPH SYSTEM FOR DIVIDING RECEIVED INTELLIGENCE INTO GROUPS Filed Jan. 31, 1950 5 Sheets-Sheet 5 R. F, DIRKES July 14, 1931.

TELEGRAPH SYSTEM FOR DIVIDING RECEIVED INTELLIGENCE INTO GROUPS Filed Jan 31, 1930 SSheets-Sheet 4 Gttorucg July 14, 1931. -F D.RKES v 1,814,902

TELEGRAPH SYSTEM FOR DIVIDING RECEIVED INTELLIGENCE INTO GROUPS Filed Jan. 31, 1930 5 Sheets-Sheet 5 Gttorneg Patented July 14, 1931 UNITED STATES PATENT: OFFICE f ROBERT F. DIR-KES, or JAMAIcA, NEW YoRK, ssIeNoR TO THE wEsrER UNIoN T LEGRAPH COMPANY, or NEW YORK, N. Y., A co roRA'rroN or NEW YORK I TELEGRAPH SYSTEM FOR DIVIDING- RECEIVED INTELLIGENCE INTO GROUPS Application filed January 31, 1930. Serial No. 424,966.

This invention relates to asystem for dividing received telegraphic intelligence into groups recorded upon separate printers. While it is particularly adapted for use in dividing stock and'market quotations be-- tween different operators, it is applicable to various other uses. p

With the operation of the automatic brokerage quotation boards recently put into service it hasbecome the practice, due to the speed of transmission needed, to divide the transmitting element of the quotation board system into two parts, each one being controlled by a separate operator and each transmitting unit transmitting quotations in which the first letter of the stock designation begins with the part of the alphabet allotted to that particular transmitting unit. In other words should two transmitting elements be used to operate the full brokerage board, it is customary for one operator through his associated mechanism to send all quotations with stock designations beginning with letters from A to J and the other to sendall stock designations beginning with letters from K to Z. At the present time, it is the practice to have a secondary operator, called an editor, at each operating position who crosses out the stocks which are not to be sent by his particular operator. This method of operation is not all satisfactory, due to the fact that, first, it requires an .extra man to cross out quotations not needed, and second, due to the speed of the received quotations, he is very liable to miss a quotation which should have been crossed out and thereby disconcert the-sending operator. Furthermore, the -position which he must occupyin order to cross out said stocks naturally obscuresthe operators vision for fast retransmission.

The object of my invention is to provide a system which automatically edits the telegraphically received intelligence and records on each telegraph printing apparatus only those quotations or intelligence characters designed for that particular associated operator. I have thus obviated the necessity for the editor heretofore required to cross out the portions of the received intelligence which is not to be sent to any particular operator or receiving printer. p y

In the following description. ofmy invention I shall refer to the accompanying drawings in which Figure 1 is a diagrammatic illustration showing one embodiment of the invention;

Figure 2 illustrates a modification of the arrangement shown in Fig. 1;

Figures 3 and 4 are side elevation and top plan views "respectively, of a printing telegraph machine known to telegraph engineers as a teletype ticker;

Figure 5 is an end elevation of the machine illustrated in Figs. 3 and 4, showing an embodiment of my invention applied thereto;

Figures 6 and 7 are detail views of certain parts hereinafter referred to.

The printing telegraph machine which I have selected for the purpose of illustration is of the same general type as that disclosed in the Creed Patent No. 1,639,213. It will be obvious that my invention is not dependent upon any particular printing telegraph machine but may be used in association with various types of machines.

I will first describe the printing telegraph machine illustrated in Figs. 3, 4 and 5. This type of telegraph machine is a motor driven typewheel tape printer. The operation of the printer is controlled by combinations of positive and negative impulses transmitted over the line to which the printer is connected. All of the operations of the printer are determined by movement of the armature of a polarized magnet actuatedby the line im ulses.

he mechanism ofthe tape printer is operated from the shaft 10 of a motor, notshown, which is geared to the shaft 12 of the selector cam drum and the typewheel shaft 14. The cam drum 15 is driven through a friction clutch 16 and the printer press lever and tape feed mechanism are actuated through a friction clutch 17. The type wheel 18 is driven through a friction clutch on the shaft 14 as is also the typewheel stop arm 19.

The selector cam drum 15 consists of a hollow cylinder with twelve cam lugs or fingers 20 projecting from its outer surface. Six of these cams are marking cams and six are spacing cams. F astened to the rear of the cylinder is an L-shaped stop arm 21. Fastened to the front end of the cylinder is a crimped disk, called a flutter cam 22 having fourteen crimps, seven projecting rearward and seven forward. The flutter cam passes through the forked end 23 of the flutter lever 23.

The selector cam drum is slidable on a sleeve on the shaft 12, between two stops. A spring 24 attached to the flutter lever tends to move the cam drum to the right against the front stop. The rear end of the flutter lever is provided wit-ha lug 23 which engages the end of the armature 26 of the selector polarized magnet 25 when the armature is in marking position. When the armature rests against the end of the flutter lever and prevents pivotal movement thereof, rotation of the cam drum will cause the drum to be moved backward and forward by the action of the flutter cam as it passes through yoke 23*. This causes the marking cams 20 to be in alinement with the lower marking arms 29 of the selector levers 30 at the instant that each cam is passing over the end of the corresponding marking arm. When the armature is moved to the left in spacing position, the flutter lever is free to move and the cam drum will be slid to the right against its front stop. The flutter cam will cause the flutter lever to vibrate in and out as the cam drum is rotated. When the selector cam drum is in this position against its front stop, thespacing lugs or cams 20 will be in alinement with the upper spacing arms 28 of the selector levers.

The stop arm 21 attachedto the rear end of the cam drum has a horizontal portion which passes through a slot in the selector friction disk 32 so that the drum rotates with the disk.

When the cam drum is nearing the end of its revolution and the stop signal is received, the flutter lever will be against the end of the armature thus= causing the cam drum to be shifted to the left against its rear stop. This will cause the stop arm to project far enough through the slot in the friction disk to be engaged by the stationary stop lug 34. When the next start signal is received, the'armature 26 will move to the left into spacing position,

releasing the flutter lever and permitting the cam drumto move to the right against its front stop. This will disengage the stop arm 21 from the stop lug 34 and permit the drum to revolve.

The operating cam 35 is a combined internal and external cam, the transfer and printing bail levers being controlled by the internal surface and the tape feed bail by the external surface. The operating cam is driven by two clutches. A friction clutch 17 initiates the rotation and after the cam has rotated a few degrees a jaw clutch 36 engages and carries the cam nearly to the end of its revolution'where it is disengaged by the lug 37, while the friction clutch 17 continues to drive the cam until it is stopped by a projec-. tion 38 on the cam striking against the inner end 39 of the cam release bail arm 39.

Shortly after the start of the rotation of theoperating cam 35, the roller on the end of the printing bail lever 40 rides to the peak of the internal cam, thus lifting the rod 41 and rocking the printing bail 42 carrying the printing hammer 43 and causing the hammer striker 45 to press the tape against the typewheel 18, thereby printing a character. As the printing bail roller ridesdown the cam, the roller on the end of the transfer bail lever 46 is riding up on the cam and as it reaches the peak, the transfer bail 47 is rocked to force the transfer levers 48 against the selector levers 30, whereby the character selection previously set up in the selector levers is transferred to the code disks 50. While the transfer bail roller is riding to the peak of'the internal cam, the roller on the end of the feed bail lever 52 is riding up on the external cam. The motion transmitted through the lever 52 rocks the feed bail 53 and causes the feed pawl 54 to move upward and engage'the next tooth of the feed ratchet 56. Then as the roller on the lever 52 rides down the cam, the feed bail spring 57 moves the feed pawl downwardly, thus stepping the feed ratchet one tooth and through the medium of the feed wheel 58 and the pressure wheel 59 moves the tape 60 forward one letter space.

The selector levers 30 are located at one side of the selector cam drum with their arms 28 and 29 projecting above and below the drum so that they can be moved to either the spacing position or the marking position by the lugs or cams 20 on the selector drum. The levers are engaged by interposed flat springs to hold them in selected position until the selection has been transferred to the transfer levers.

The selector levers have four arms, the upper selecting arms 28 and 29 and lower transfer arms 61 and 62. The ends of the selecting arms are' offset with respect to each other,

the lower or marking arms 29 being offset toward the back and the upper or spacing arms 28 being offset toward the front of the printmovement of the bail 47 an the arms 47" which carry the pin 47 upon which the on the pivot pin 65 carried on the end of the transfer levers are mounted, either the lug 48 or the lug 48 of the transfer levers will strike against the corresponding arm 61 or 62 of the selecting levers, depending upon whether the corresponding selecting lever is in marking or spacing position. Thus the selection set up in the selector levers by the lugs or cams 20 on the selector drum, will be transferred by the movement of the transfer levers 48 to the code disks 50, It will 7 be noted that while there are six transfer lealinement with either the letters striking f hammer or the figures striking hammer as the shift arm 64 is moved in one. direction or the other and thereby rocks the yoke 44 printing bail 42. p

The five code disks 50 are provided with a series of notches 67 around their periphery and above these notchesextend stop pins 68 which are held in slots 71 in three guide disks.

7 0*, 70 and 70 under the tension of circular coil springs 72 which press the pins against the edges of the disks. The friction of the marking, causing the armature 26 of the sepins upon the. disks is minimized by small rollers 73 placed on the pins. The code disks can be rotated slightly to either of two positions. The cou'nter clockwise position is the ma'rking position while the opposite position is the spacing position. With the code disks set in any particular combination, there will be one and only one series of notches which will be alined to permit the corresponding pin 68 to be moved by the springs into said alined notches and into the path of the typewheel stop arm 19, thus determining the code character to be printed.

The t pewh'eel 18 and typewheel stop arm 19 are xed to the typewheel shaft 14, the latter being driven from the shaft 10 of the driving motor through suitable gears and a friction .clutch 13. When the stop arm 19 is engaged by a stoppin 68, the friction clutch permits the stopping of the typewheel to print a character.

The functions of the various parts and mechanism of the printer will be understood from the previous detailed descriptlon but it may be well to follow through the complete operation of the printer in select ng and printing a character. Suppose, for instance, that the letter Y is being transmitted over the line to the printer. The transmittlng distributor at the distant end of the line first sends out a start impulse which is always spacing.. This impulse is received by the .coils 25 of the polar magnet and causes the spacing.

initiating the rotation of the selector cam drum 15. The next impulse is a marking impulse, which moves the armature 26 to the right or marking side. As the cam drum rotates, the flutter lever will be moved outward by the flutter cam thus permitting the end of the armature to move into the path of the lug 23 of the flutter lever and block its further movement. WVhen the flutter lever is thus blocked by the armature, the flutter lever fork 23 will move the drum as it rotates, so that the'No. 1 marking lug on cam 20 on the drum will be moved into alinement with the marking arm 29 of the selector lever 30 and the cam lug will therefore shift the selector lever to the marking position.

The next impulse of the Y selection is The armature 26 therefore moves to the spacing side, releasing the flutter cam lever and permitting the cam drum to move to its front stop. Hence No. 2 spacing cam lug 20 will be in line with No. 2 selector lever and as the drum revolves, the No. 2 selector lever will be shifted to spacing position.

The third impulse of the Y selection is lector magnet to move again to its marking side and hence as the third marking cam 20 approaches the marking arm 29 of the third selector lever the flutter cam will move the flutter lever outward, thus permitting the armature to slip under the endof the lug I 23 and block the movement of the lever. As thedrum rotates, the flutter lever'being blocked, the flutter cam 22 will cause the camdrum to move toward the left bringing the third marking cam into alinement with the marking arm 29 of the third selector lever and moving it to marking position.

The fourth impulse is a spacing impulse and consequently the armature 26 will be moved to the spacing side, releasing the flut-.

ter lever and permitting the No. 4 spacing cam 20 on the selector druin to engage the spacin arm 28 on the fourth selector lever and shift it to spacing position.

The fifth impulse is marking and consequently the armature 26 will swing to the marking side and will block the flutter lever thereby causing the fifth markingcam lug 20 to move the fifth selector lever into marking position. v

The sixth impulse is a spacing impulse and consequently the, sixth selector lever w1ll be -moved to the spacingposition in the mantant end. This impulse is always marking and causes the armature 26 to block the flutter lever 23 so that the cam drum will be moved toward the left and just as one revolution is completed, the stop arm 21 strikes the stop lug 34 thereby stopping the rotation of the cam drum which will remain at rest until the reception of the next start impulse.

During the rotation of the selector cam drum as just described, and after the reception of the fourth impulse, a depression in the edge of the'selector friction disk 32 comes opposite the end of the cam-release bail 75, thus rocking the bail and removing the lug 39 on its opposite arm from engagement with the lug 38 on the friction clutch 17 thereby releasing the operating cam 85 and permitting it to rotate. Shortly after the fer bail 47 to lift transfer levers 48 upwardly so that their lugs 48 and 48 will strike one or the other of the arms 61 and 62 of the corresponding selector levers, thereby transferring the code combination which has been set up on the selector levers by the cam lugs on the cam drum, to the code disks 50. 'At this time, the selector cam drum has been stopped 'by the engagement of thestop arm 21 with the stop lug 34, but the operating cam 85 continues to revolve, thereby actuating the lever 52 connected to the tape stepper bail 53 and causing the spacing of the tape for the previous letter before the cam completes its rotation and is stopped by the engagement of the lug 38 with the lug 39 of the cam release bail arm. The printing of the letter Y, the selection of which has just been described does not take place until the next selection is received and the cam drum has revolved far enough to release the operating cam.

When the code selection was transferred from the selector levers 30 through the transfer levers 48 to the code disks 50, the shifting movement of these code disks,'in assuming their new positions, caused the previously selected pin which was at that time holding the typewheeL stop arm to move outward thereby permitting the stop arm and type wheel torevolve until the stop arm struck against the stop pin corresponding to the Y selection which was permitted to move inward, due to the alinement of the notches in the code disks being in this position. It

will be clear, therefore, from the above description that a character which is selected during one revolution of the cam drum is not printed until the next revolution of the cam drum. 'In other words, while one character is being selected, the preceding character is being printed.

I have shown schematically in Fig. 1, an arrangement of apparatus embodying telegraph machines of the type previously described, for dividing the received stock quotations or other intelligence into separate groups or divisions and recording' the same upon two or more telegraph printers or receiving instruments. The division is controlled by the initial character in each group of characters, such as the abbreviations used to designate certain stocks. It is customary for one operator to send all quotations with stock designations beginning with letters from A to J and the other to send all stock designations beginning with letters from K to Z. If desired, a special code combination could precede each group when switching is necessary but in this description the first letter of the actual intelligence characters controls the switching means.

All of the quotations are received by the main distributing receiving instrument, indicated diagrammatically at A by one of the circular tensioning springs 72 and stop pins 68. This machine differs from the machine shown in Figs. 3, 4 and 5, in that the typewheel 18 and typewheel stop arm 19 are omitted. In place of these I provided two or moreseries or groups of contacts, preferably in the form of spring clips 80, one for each of the stop pins 68, arranged in a circle and positioned so that the stop pin which is permitted to move inwardly by the alined notches in the five selector disks which have been selected by any code combination, will enter the corresponding spring clip and thereby close an electrical circuit for the purpose hereinafter described. The pins are grounded by grounding one or more of the circular spring bands 72. A polar relay R of the Wheatston'e type has one end of each coil connected to the respective groups of spring contacts and a common connection from the other terminals of the coils connected to a contact 85 of switch S, the other terminal 86 being connected to positive battery. Relays R and R are the usual non-polar relays. The position of the contact arm of switch S is controlled by switch lever 64' which is substituted for the shift arm 64, connecting the sixth transfer lever and actu ated by the sixth pulse of the codecombination.

I have indicated diagrammatically two telegraph printers A and A between which the stockj'quotations or received intelligence is to be divided, these machinesbeing of the type illustrated in Figures 3, 4 and 5, the

' latter showing the relative position and arrangement of said nevel features of my invention which are indicated diagrammatically in Figure 1. In telegraph printers as at present used, the press hammer 43 strikes directly against the printing hammer 45 to press the tape against the characters on the typewheel 18. Instead of this arrangement I have interposed an intermediate hammer 90 carried on an arm 91, slidable through a guide 92 and swiveled on the upper free end 'which withdraws the; press wheel from the tape feed wheel 58 when it is attracted by'the magnet 96, thus stopping the forward motion of the tape 60. The machine A is in all respects the same as the printer A The operation of the organization illustrated in Fig. 1 will now be apparent from the previous description of the several parts. Let us suppose that a stock quotation beginning with the letter L- is being received and that the code combination for the letter L has been set up on the code disks so that the stop pin corresponding to the letter L has been forced by the springs 72 into the corresponding spring clip as indicated in Fig. 1. It will be noted that the clips asso- -ne"s 94' and 96 maintain the printer A in- Thesucceeding figures of this ciated with all letters from A to J are connected in parallel and in circuit with the left hand coil of the Wheatstone relay R while all the pins from K to Z are connected in paralleland in circuit with the right hand coil of the polar Wheatstone relay R Hence the right hand coil of the relay R is now connected to ground through the L stop pin and the grounded spring 72. Concurrently with the setting up of the L selection on the selector disks, the sixth pulse of the code combination caused the shift fork 64 to move the contact arm of the switch to its left hand or letters contact 85, carrying with it the connection to condenser 98. The condenser was charged by connection with positive battery when the switch arm was against its right hand or figures contact. The discharge of the condenser through contact 85 and the.

right hand coil of the Wheatstone polar relay R and through the L stop. pin and clip to ground through the grounded spring ring 72, causesthe relay R to move its tongue against its right hand contact, thereby applying positive battery to the coil of relay R Positive battery is thereupon connected through the armature 'of arelay R to the magnets 94' and 96' of the printer A These. magnets withdraw the intermediate hammer 90 and the press roller 59, thus rendering the printer A inefiective. The letter L will, therefore, be printed on the tape of the printer A but will not be printer A The second letter of the stock quotation being received, will prepare a path by grounding one or the other of the coils of the relay R through the selected stop pin and corresponding clip, but inasmuchas the shift lever 64 remains against the letters contact 85, no current can flow through the relaycoil because the condenser 98 was discharged when printed on the tape of v the first letter was selected. Hence the conditions will remain unchanged and the second letter will be recorded upon the tape of the printer A the printer A remaining inefiective. I

When the first figure of the quotation is received and set up on the code disks of the main distributing receiver A the sixthpulse will simultaneously cause the shift lever 64' to move the contact arm 'of the switch. S

against the right hand 'figures contact 86 thereby causing the condenser 98 to receive acharge from positive battery. Simultane'-' ously one of the stop pins 68 is moved inwardly into engagement with the corresponding spring clip contact 80 and prepares a circuit through one of the coils of the main relay R but this circuit is open at the contact 85' and hence the armature of the polar relay R still remains in engagement with its right hand cont-act to which it was moved when the initial letter L was received. Accordingly the relay R is still energized and the magoperative.

quotation will be received in the same manner as the status of the relay R and its associated printer A will remain unchanged until the initial letter of the succeeding quotation is received. The code combinations of letters and figures are set up simultaneously in the code disks of the three machines A A and A and consequently each stock quotation or received intelligence is printed either by the printer A or by the printer A (If the next received quotation has an tial letter in the same connected groupas the preceding quotation, the operation above described will be repeated and the group of letters and figures will again be printed on the tape of the printer A Let us assume, however, that the initial letter is in the other group, for example beginning with the letter B. The engagement of the stop pin corresponding to the letter B with its spring clip contact 20 connects the left hand 'coil of the Wheatstone polar relay R to ground and as the shift arm 64"simultaneously moves p the arm of switch .S againstfits letters contact 85, the condenser 98 discharges through said left hand relay coil thereby closing a circuit from positive battery through coil of relay R and breaking the circuit through the coil of relay R Current then flows from positive battery through the armature of relay R to energize magnets 94 and 96 of the associated printer A thereby rendering inefi'ectual the printing hammer and the tape stepper of this printer. Upon deenergi zing the relay R and the magnets 94 and 96' of the printer A the intermediate hammer 90 and the press roller 59 were restored to operative position so that this group of letters and figures will be recorded upon the printer A It will be remembered that almost a complete cycle of operations is made between the time the stop pin 68 and the shift lever is actuated by the setting up of a code combination in the selector disks, and the time when the press hammer is actuated and the tape is stepped ahead, so that ample time is allowed for the intermediate hammer 90 to return to its normal position before the selected character is printed.

It is obvious from the above description that this invention has providedfirst, a mechanism which automatically controls the selection of one of two or more circuits dependent upon the mechanical selection of the initialcharacter of a group of selected characters, and second, the use of said selected circuit to automatically control the operation of one of a number of printers or receiving instruments in .order to eii'ect the elimination of intelligence which is not to be printed on said receiving instrument.

In the arrangement just described, the quotations rinted upon the tape of either printer A or 3 follow each other with no space interposition so that the operator who observes the quotations on the .tape of either machine does not know whether other quotations have been made by the other printers.

In Figure 2 I have shown an arrangement for causing a space to be interposed between successive quotations on the tape of either machine whenever a quotation is made on the other printer, thus indicating to the operator the omission of a quotation from his tape. The elements or parts of the apparatus shown in igure 2 which are the same as the corresponding parts in Figure 1 require no further description. Instead of connecting the magnets 94 and 96 in series, I arrange these magnets in separate circuits, the magnets 94 being controlled by the relays R and R as in Figure 1, but the magnets 96 being controlled by auxiliary relays R and R The instant of operation of the relays R and R is determined by contacts controlled by the operation of the tape stepper lever 53 (see Fig. 5).

Let us follow the operation of this arrangement by citing a particular example.

a quotation and that the Z stop pin has been moved inwardly in the notches of the selector disks of the main distributor receiving instrument A in the manner previously described and that it has applied a ground through the spring 72 or the frame of the machine to the right hand coil of the Wheatstone polar relay R and simultaneously the shift fork 64', by reason of the received selection, moves the arm of switch A from the figures contact 86 to the letters contact 85. The discharge of the condenser 98 through the right hand coil of polar relay R causes its-tongue or armature to close a circuit from positive battery through the coil of relay -R The armature of this relay closes a circuit from positive battery through magnet 94 of printer A thereby withdrawing the intermediate hammer 90 and rendering the action of the press hammer 43 inefi'ective. The circuit from positive battery through the tongue or armature of relay R and the coil of auxiliary relay R has not energized the latter as yet, due to the interposed resistance of say a 1000 ohms at 99. It will beremembered that there is quite a time interval between the setting up of a code combination on the selector disks and the operation of the tape stepper lever 53 and hence this time interval occurs between the energization of the relay R and the relay R When the operating cam 35 causes the operation of the tape stepper-bail and lever 53,

the latter closes the contacts 100, thereby,

shunting the 1000 ohm resistance, thus causing the actuation of the relay R It will be noted that any further operation of the contacts 100 by the lever 53 will not cause the relay R to release its armature'since a sufficient current will flow through the resistance 99 to hold the armature after it has once been actuated. Upon the actuation of the relay R a circuit is closed from positive battery through its armature to energize magnet 96 which thereupon withdraws pressure roller 59 from engagement with the tape feed roller 58, thus rendering the feed of the printer inefli'ective. Inasmuch as the tape stepper lever 53 is first moved upwardly by the cam 35 and then moved downwardly by its spring 57, the contacts 100 are closed at the end of the stroke of the tape stepper lever and consequently the tape has already been stepped forward one space before the magnet 96 has'been actuated. Thus the relay in the actuation of the magnet 96 after the actuation of the magnet 94 causes the spacing of the tape although the printing has been rendered ineffective by the prior actuation of the magnet 94: withdrawing the in termediate hammer 90. The status of the until the'reception of the initial letterof the s next succeeding quotation. Let us assume that Z 1s the initial letter of Let us suppose that the initial character of the next quotation is a letter in the first part of the alphabet which causes the armature or tongue of the polar relay R to engage its left hand contact, energizing the relay 11- lowed immediately upon the shifting of the armature of relay R to its left hand contact, thereby closing a circuit through the magnet 94 of printer A which withdrew the intermediate striker 90 from the printer mechanism. As in the previous instance, the operation of relay R is delayed until the tape stepper arm 53 is actuated to close the contacts 100 and shunt the 1000 ohm resistance,

so that again in this case the tape feeding mechanism of the printer A is allowed to function for one spacing of the tape following the restriction of the printing mechanism. The selected characters of this quot-ation are printed on the tape of machine A in the manner previously described.

I claim:

1. 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 the initial character in each group of intelligence characters.

2. In a telegraph system wherein the received intelligence is arranged in groups of characters comprising a letter or letters followedby figures, the method of classifying said intelligence which consists in directing the groups into different channels determined by the initial letter of each group. p

3. 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 the initial character of each group to select the instrument upon which the group shall be recorded and preventing other 'of said instruments from recording the same. i

4. In .atelegraph 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:

5. In a telegraph system in -which the transmitted intelligence is constituted of groups of characters, a plurality of receiving instruments each connected to TQCGIVG transmitted intelligence is composed all of the transmitted intelligence, certain 1 of said instruments having means to render the recording function inoperative, and means associated with one of said instruments responsive to the initial character of each group to determine which instruments shall function of record and which instruments shall not record the intelligence group.

6. In a telegraph system in which the transmitted intelligence is composed of groups of characters, a plurality of receiving, instruments, each connected to receive all of the transmitted intelligence, certain of said instruments having electromagnetic means adapted when actuated to render the printing and tape stepping functions inoperative, and one of said instruments having means for controlling the operation of said ing instruments being provided with nullifyi'ng means to render the printing function ineffectual, and said editing instrument hav-' ing means connected to each of said nullifying means and responsive to the initial character of each received word or group of characters, to cause the operation of any of said nullifyingmeans and permitting the other recording instruments to function 8. In a telegraph system in which the groups of characters, a plurality of receiving instruments, each connected to receive all of the transmitted intelligence, certain of said instruments having electro-magnetic means adapted when actuated to render the printing function inoperative and other electromagnetic means to render the tape stepping function inoperative, and one of said instruments having means responsive to the initial character of each group of characters to conv trol the operation of one or the other receiving instrument by first actuating the electromagnetic means connected with the printing function and subsequently actuating the elecmined by the initial code combination in any Word or group of received characters.

10. In a printing telegraph system havlng a plurality of printing instruments connected to record the received intelligence, the

method of assigning different portions of the intelligence to different instruments which consists in controlling the respective instruments bythe initial character in each group of intelligence characters. v

11. In a printing telegraph receiver for recording groups of characters, selector mechanism responsive to received code combinations of impulses, a typewheel positioned by said selector mechanism, a printing hammer adapted to press a tape against said type-' wheel, a striking hammer operating to actuate'said printing hammer, and means controlled by the initial code combination of predetermined groups of characters to rendersaid striking hammer ineffectual.

12. In a printing telegraph receiver for recording groups of characters, selector mechanism responsive to received code combinations of impulses, a typewheel positioned by said selector mechanism, a printing hammeradaptedto press a tape against said typewheel, an auxiliary member normally in alinement with said hammer, a striking hammer operating when actuated to press said member against the printing hammer, and

'means controlled by the initial code combination of predetermined groups of characters to withdraw said member and thereby render I so the movement of the striking hammer ineffectual.

13. In a printing telegraph receiver for recording groups of intelligence, selectori wheel, tape feed mechanism, and means responslve to certain code combinations for rendering said printing and'tape feed mech- I anlsms inefi'ectual.

14. In a printing telegraph receiver for recording groups of intelligence, selector mechanism responsive to permutation code combinations of impulses, a typewheel positioned by said selector mechanism, printing mechanism to force a tape against said type wheel, tape feed mechanism,-and means responsive to certain code combinations for rendering said printing mechanism ineffectual and thereafter rendering said tape feed mechanism inefl'ectual.

15. In a printing telegraph system, a plurality of receiving printers'responsive to received code combinations of impulses, an editing or directing receiving instrument having selectors responsive to code combinations of impulses, circuit controllers operated b said selectors, and means governed by sai controllers to render oneor afiother'of said re- ROBERT F. DIRKES.

DISCLAIMER 1,814,902.R0bert F. Dirlces, Jamaica, N. Y. TELEGRAPH SYSTEM FOR DIVIDING RECEIVED INTELLIGENCE INTO GROUPS. Patent dated July 14, 1931.

Disclaimer filed June 21, 1935, by the patentee, the assignee, Western Union Telegraph Company, assenting.

Hereby disclaims the system defined in claim 4 of said Patent No. 1,814,902, except when the expression means actuated by the received intelligence to render certain of said receiving instruments ineffective to record certain of said groups comprises a device mechanically connected to each instrument.

[Ofiicial Gazette July 23, 1935.]

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