US1765042A

US1765042A - Automatic tape-controlled transmission for tickers

Info

Publication number: US1765042A
Application number: US754188A
Authority: US
Inventors: Evan R Wheeler
Original assignee: Western Union Telegraph Co
Current assignee: Western Union Telegraph Co
Priority date: 1924-12-05
Filing date: 1924-12-05
Publication date: 1930-06-17
Anticipated expiration: 1947-06-17
Also published as: USRE18208E

Description

June 17, 1930. E. RJYWHEELER 1,765,042

AUTOMATIC TAPE CONTROLLED TRANSMISSION FOR TICKERS Filed Dec. 5, 1924 7 Sheets-Shet l Slop/19g In: I-

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E. R. WHEELER 1,765,042

AUTOMATIC TAPE CONTROLLED TRANSMISSIO\ FOR TICKERS 7 June 17, 1930.

- 7Sheets-Sheet 6 W m 5? Wee/er Filed Dec. 5 1924 76 Segment; ll

June 17, 1930.- E. RLVWHEELER AUTOMATIC TAPE CONTROLLED TRANSMISSION FOR TICKERS 7 Sheets-Shee Filed Dec. 5, 1924 Patented June 17, 1930 UNI-TED STATE s P EVAN R. WHEELER, OF NORTH PLAINFIELD, NEW JERSEY, A SSIGNOR TO THE WEST- v ERN UNION TELEGRAPH -COMPANY OF NEW YORK, NLY A CORPORATION OF NEW YORK I AUTOMA'IIC TAPE-CONTROLLED TRANSMISSION FOR TICKERS Application-filed December 5,1924. Serial No. 754,188.

This invention relates to'improvements in the method of transmitting and receiving quotations and in the apparatus and circuit arrangements therefor.

As is known by those familiar with the operation of quotation or other ticker systems, in the method heretofore employed for the transmission of characters, the o erator, by the manipulation of keys on a key oard, controls the ticker transmitter directly by means of electrical circuits from the various keys of the keyboard ;to the transmitter.- In the system herein described ,the characters to be transmitted are first transcribed by the operator by means of a keyboard perforator upon a tape in telegraphic code and the perforated tape is thenfed through a tape transmitter which, in"conjunction with a ticker transmitter, controls the'character impulses sent over 20 the lines to the so-c'alled,tickers at the brokers or other receiving ofiices.

I can best explain the I several features of my invention in connection Withthe accom-' panying drawings in Which-Figures l and 2, taken together, illustrate apparatus at'the transmitting and receiving stations for carrying out my automatic stock ticker transmission system; Fig. 3 is an illustrative diagram of the circuits connecting the contacts of the tape transmitter with the segments of the selector heads, the latter being shown in developed form; Fig. 4, shows a face View of the selector heads; Fig. 5 shows the alphabet and figures as they appear when punched in the tape in telegraphic code characters; Fig. 6 showsthe order or arrangement of characters on the face of the typewheel of the ticker when developed; Fig. 7 illustrates aspecimen .of a stock ticker tape; Fig. 8 illustrates the selection circuits for the letter Dig; 9 illustrates the-circuits for the letter Fig. 10 illustrates the selection circuits on the two selector heads when the same character is duplicated; Fig. 11 shows the circuits for the unison function; Fig. '12 shows the circuits for the controlling of the shift to letters or to figures; and Fig. 13 shows the circuits .for

operating the tape stepper function.

There are usually a number of ticker recorders on the same circult controlled'by a tinuously to print the market quotations upon the recording tape. The function of the automatic'system disclosed herein is to cause the ticker transmitter to stop at the correct point or position in its rotation correspond in to the character which it is desired to pr1nt,to hold it stationary for a definite interval, meanwhile preparing the next succeedmg character selectiona'nd then releaslng the transmitter and allowing it to rotate to the next character position. J

The essential features of'the self-winding ticker are shown in the lower right hand por tion of Fig. 2. A type-wheel20, made in two sections, is secured to shaft 21.. One section of the type-wheel carries upon its periphery thirty lett'er characters and the other sectioncarries thirty figure characters, the characters on the two sections being in exact alinement,

The order in which the charactersappear on the type-wheel is shown in Fig. 6. I have illustrated in Fig. 7 a section of stockticker tape showing how the market quotations appear on the printed tape as it leaves the ticker.

The type-wheel shaft 21 carries a pinion 23 in mesh with a gear 24, connected to a clock spring 25 which is maintained under constant tension "by the winding magnet 27, acting through the pawl 28 and ratchet 29. The

shaft is prevented from continuous rotation by escapernent anchor 30, whichengages the teeth of escapement wheel 31. The escapewent anchor is controlled by the permanent magnet 32 and the coil 34. The reversals of current through the coil 34 cause the anchor to shift back and forth, each movement releasing the escapemcnt wheel and allowing the type-wheel to rotate an amount equal to the space of one character. As the type-wheel must be rotated in this manner step by step to the character which itis desired to print,

the escapement magnet coil 34 must receive as many impulses, alternately positive and negative, as there are spaces between the last character printed and the next character to be printed. The driving spring 25 is maintained under approximately constant tension been rotated.

platens is a shift shift arm 37 rests betweenthe prongs of a fork 41 on the upper end of pivoted armature W ers to run freely during three orfour revolu the ticker 80 at regular intervals to insure their un1form v 42 of the shift magnet 43. If a letter character is to be printed, the armature is moved to the right, thus throwing the shift arm 37 under the letters platen. When the press magnet 45 is energized'immediately there after,'the lever 40 carried by its armature 44 lifts the arm 37, which strikes the letters platen and presses the tape against the face of the type-wheel, thereby printing the character to which the type-wheel had previously If it is desired to print a figure character, the armature 42 of the shift magnet deflects the arm 37 to the left, so that when-the printing lever is raised, the figures platen presses the tapetagainst the typewheel. After each character is printed, the tape is advancedthe space of one character on the down stroke of the printing lever.

The shift magnet requires a positive or a negative current impulse, depending upon respond to whether a letter or a figure character is to be printed. It is necessary, therefore, to send over theline 50, positive or negative current to actuate the shift magnet and also to break said impulses into regular pulsations for the purpose of operating the winding magnet 27. The-pressmagnet, which is in the same circuit with the escapement magnet responds to current of'either polarity but only operates upon a long impulse and therefore does not the rapid reversals which actuate the latter. Henceon line 51, it is necessary to. send rapid reversals of current of suflicient number to cause the type-Wheel to ro-- ta te to the character which it'is desired to print and then to prolong the last impulse of the group of reversals to energize the press magnet and print the character; if

It is-ess ential that the typeewheels of alL tickers on a circuitv shall startat the samecharacter, after which the type-wheels will rotate in unisonwith the escapement imr pulses passing over line 51. Tothis end the type-wheel shaft 21 is provided with a worm 52, which is engaged by the end 53 of an arm 54, pivotally mounted for vertical movement at 56 in a post 57, Whichis rotatable on a vertical pivot in its support- 58. l/Vhen the shaft 21' has madethree revolutions withoutprinting a character, the projection 59 at the end of the worm strikes the end of the arm 54 and stops the rotation of the shaft." This always occurs when the .letters dot, just'bearm 37 carried by a' link 38, pivoted to'the printing lever 40. The

' the relays of the the press magnet is raisedto print the unison dot, aforked arm 60, attached to the armature, lifts the arm 54, disengaging t from the stop 59 and permitting tbearm to be swung by its spring 61, back to in'itial position at the left of the worm. This releases th'e shaft 21 leaving it free to move step by step under the control ofthe .escapement impulses, This operation of allowing the tick- 'ity of position.

The line impulses are transmitted to the 3 self-winding ticker in the following manner. At the transmitting station, eacli group of from eightto fifteen tickers in a circuit, is operatedfrom a single set-of relays which are preferably mounted upon a circuit, panel,

several groups being controlled by a ticker, transmitter. As man circuit panels are provided as ima'y'be ound necessary to divide the tickers'into suitable groups, butall of the circuit panels are controlled from the same transmitter.-

-;The essential features of ofFig. 1. The shaft 65, driven by a uniform speed motor 66, carries a threeepoint cam -67, which c ontrols the winding contact .68, and-through the gearing 69, drivesthefshaft 70' at aspeed fifteen times greater'than the speed of the shaft-65L Aneccentric 7'1 on the shaft 70, operates a pole-changer tongue 72, which is connected to positive battery. As it alternately engages contacts 73 and 74- -

connecte'dthrough conductors

75 and 76, re-

spectively, with the right and left hand coils of polar line relay 78, the \tongue 79 .of the latter follows its motion. left contacts of the relay 78 are connected to the ticker trainsmitter are illustrated in the upper portion" The right and the positive and negative poles of'the line battery and hence as the armature 79 vibrates rapid reversals of current. are sent overihe line 51 to the escapement and press magnets of the tickers; The actuationof the escape mentmagnet'causes the type-wheel shaft-21 to revolve in unison with the incoming ,im-

ulses and consequently in unison with the 65 held stationary, the pole-changertongue 72 rests'on one or the other contact, thus holding the'armature 7 9 of thevpolar line ,relay on its corresponding contact and thereby sending out the required long impulse over the line 51. 4

The'point at which the ticker transmitter shaft shall be stopped is determined-by the location on the type-wheel of the character to be printed. The tape transmitter T, which sets up the variops selections, is connected in such manner to the selector heads A and B of the ticker transmitter T, that the order of character selections on the selector heads is the same as the order of characters on the ticker type-wheel. The selector heads are composed of insulated conductor segments. The headsare stationary, while the

brusharms

80 and 81, which carrythe brushes, are carried by the shaft 65. When a character selection is set up in the tape transmitter, a circuit is established at only one pointin the: rotation of the brushes, from ground in the tape transmitter, through certain segme'ntsiin the selector heads, through brush A ring,

A brush A}, through conductor 84' and stop will be described hereinafter.

to operate the shift magnet 43 before the press magnet 45 actuates the arm toprint the character. I

The automatic control system which'causes.

the ticker transmitter to stop'at the correct point in its rotation corresponding to the character which it' is desired to print, -wil1 now be described more in detail.

As is Well known by those familiar with telegraph apparatus, the quotations which it is'desired to transmit are prepared byan operator in the form of a perforated'tapc by means'of a keyboard perforator having a key for each character appearing on the typewheel of the recorder or ticker, each ch aractcr having a different combination of holes constituting the character selection. In the present system, in addition to the character keys, I-employ' three function keys, the unison, the

tape and the rub-out, the operation of which magnets 85, ;ondu tor132mgp sitivehattery;g The width of the tape permits six holes to by way of back contact and armature ofr'elay? .befp-erforated. Of these the top hole, which R The energization of the

stop magnet

85, 1 causes the stop arm 86, carriedby its armature, to engage the end of the stop clip .87,

thereby stoppingthe rotation of both shafts 65 and 70.

As previously stated, the position of the armature 42, of the shift magnet 43, is controlled by transmitting either positive or negative current over line 50, depending upon whether a letter or a figure character s to be printed. This polarity is determined by the position of the shift relay SR on the circuit panel. This relay is controlled by the master shift relay 90, which controls the relays on all of the panels, and the master shift relay in turn is' controlled by the character selection in the tape'transmitter. i I

' It will be observed that the line 50 passes through the back contact and tongue or armature of the winding relay WR, before reaching the tongue or armature of the shift relay. When the ticker transmitter revolves freely,

Y thecam 67 opens andcloses the winding contact 68 three times per revolution of the shaft 65, thus causing the winding relay VVR to alternately attract and release its tongue or armature and in turn causing the winding magnet 27 to attract and release its armature,

thereby keeping the clock spring 25 'wound'to supply the driving force to the type-wheel shaft 21. The circuit for the winding contact 68 on the ticker transmitter passes through conductor 91 and contact 92 to positive battery, but this circuit is only closed when the stop magnet 85 is deenergized and the transmitter shaft is revolving freely. \Vhen the. stop magnet is energized to stop the transis designated the zero hole, is for the purpose of distinguishing between figures and letters. .Theqz'ero hole is perforated on all figure characters and is not perforated for lett'er characters. The other five holes are for the purpose of selection or determining the character to be printed' The selection for all characters is shown in Figure 5.

The armature or tongue ofthe U After the perforated tape is prepared by l the operator, it is passed through a tape transmitter of the same general type shown.

in U. S. patent to'Benjamin No. 1,298,440/

I have, however, made a number of changes and have embodied new features in orderto adapt it to my present purposes. The essential features of this tape transmitter are illustrated in the upper portion of Fig. 2. Six

reciprocable pins P arev employed, one for each hole in the tape, and each pin controls -a rocker-arm 100, carrying two semi-flexible segments. The segments are so arranged that there are thirty distinct stop positions during one revolution of the brush arm. Face views of the selector heads are shown in Fig. 4. ,In the lower portion of Fig. .3, I have shown the segmented face of the heads in developed form and in the upper portion of the figure I have indicated diagrammatically the tape transmitter tongues and cooperating contacts and have indicated the selector-head segmented rings to which the contacts are connected.

The tape transmitter tongues marked 1, 2,

e 3, Land 5, are theoncs which control the character selection and the stopping of the ticker transmitter. .The right hand set of tape transmitter contacts is connected direct-. 'ly' to the segments of the,A selector head,

and the left hand set of tape transmittercontacts is connected directly to the segments of thefvB. selector head. The character'corresponding to each set of segments appears on the diagrarnjust above the developed segmented rings in Figure 3.

When a selection'is made in the tape transs mitter by certain of the pins I, passing through perforations in the tape indicated at T, the tongues-which correspond to the pms which passed through theperforations, are moved over against their marking contacts- M, while the other tongues remain against thei'rspacing contacts. This selectionor a'rrangement of'the tongues prepares a circuit which is completed by the brushes carried on the brush arms 80 and 81-as they come to the set of segments corresponding to the selection set up. The stop magnet 8 5 is energized by the completion of the circuitthrough it and 'causesthe stop arm 86 to arrest the rotation ofthe ticker transmitter shaft 65, with the brushes resting on't-he line of segments the segments shown in Figure -8, are inthe correct relative position as they-actually oo our on the selector head. Only'the right hand set of tape transmitter'tongues and contacts appear in Figure'8.

With the tape transmitter tongues in the position shown in Figure 8, and with the ticker transmitter brushes on the line of segments'corresponding to the character slected, there is a circuit from ground on NO. 1 tongue of -the tape transmitter, through the tongues and contacts of the tape transmitter,

connected as shown, to the segments and brushes of theticker transmitter and through stop magnet 85 to positive battery. This energizes the stop magnet, which stops the transmitter shaft with the brushes resting on the selected line of segments, thereby causing the tickers to print the character selected in the manner previously described.

The selection for the letter Y is l, 3 and 5 marking. The circuits for this selection are shown in Figure 9 and will be easily understood. The selection for any character on the A selector head may be traced through in a similar manner, first setting up the correct selection in the tape transmitter, as shown in Figure 3, and then assuming the selector head brushes to-be on the segments for that particular character.

It will be found from an examination of the diagram that there is only one position on the headwhere the revolving brushes complete a circuit to the stop magnet for anyone character set up inthe tape transmitter. Each character on the ticker type-wheel appears only once-on the A selector head.

{Figure 4: is.=a face viewof the two selector heads. The

brush arms

80 and 81 are opposite each other on the shaft and consequent- I ly the brush arm 80 is at-thetop of the A headcwhen the brush arm-81 is at the bottom of the B head. Furthermore as the heads face eachother, the brushes will rotate thereon in opposite directions as indicated by the ar-- rows. i

By referring to Figure 6 showing the developed face of the type-wheel it willbeobservedthat there are two sets of figures 1 to 8 inclusive, two figure-dots and three letter dots. It is desirable, of course, that the ticker transmitter and consequently the tickers being worked from it, shall stop at the fi t one of the duplicate characters when that character is set up in thetape transmitter.

To accomplish this result, I provide the B selector head and the second brush arm 81.

The segmented rings of the B selector headare shown in developed form in Figure 3 and in the correct position with respect to the A selector head and the-brush arms In additiontothe duplicate figures and'dots, this B head has segments assigned to three functions, viz: the unison dot, the tape stepper, and the rub-out, the purpose of which willbe explained later. The left hand set of contacts in the tape transmitter is connected to the B head, as indicated in Figure l 3. I Selections are thus made independently on the two selector heads, there being no common circuits, but the same selection is prepared for both heads at the same time;

Theselection for the figure 4 is thesame. in the two positions, that is, 0, 1,4 marking. It is obvious thenthat if thecharacter' 4 is perforated in the tape a circuit willbe prepared when thebrushes reach the fifth position on the A head and likewise in the sixteenth position onthe B head. The ticker transmitter brushes will there-fore complete a circuit through the stop magnet 85,in either position and the'brush arm will be stopped in .which ever positionit reaches first.

meaoea marking, is set up inthe tape transmitter,

. the ticker transmitter must stop only on the fifth position of the A-selector head and in 5 no other position on either head. The letter D and figure 4 differ onlyiii'nthat the latter has an 0 perforation in adiitionio the 1, 1 perforations on tne tape. The means of distinguishing betweenthe nearlgytsimilar selections' for D and 4 can besti ibeexplained by v reference to the liagrams \.of -Figure '10..

' Thev selection for the charaeber a; as set up in the tape transm tter showman-Figure 10, the selection being 0, hfl igarki-ng. By tracing the circuits, it Willffbe seen that the stop magnet 85, can be energized either in the fifth. or in the sixteenth position of the I brushes. If, however, the zero tongue of the tape-transmitter is on the spacing contact, as for'the character D, in which the selection is 1, 1 marking, there is no circuit to the stop magnet in the sixteenth. position since the conductor. leading to the segment 12A is then open.

Similar circuits may be other duplicate characters; It will be observed thatthere is no circuit to the stop magnet 85 directly from the segments of the B selector head but that the selection circuits, after passing through this head, pass back to the zero tongue of thetape transmitter and then to the last ring on each selector head.

My method of shifting to either letters or .fig'ures in printing a character will now be described. A figure character is denoted by ahole punched'in the tape in the zero position in addition to "the holes denoting the combination for that particular character. This eliminates the necessity of punching a special figure shift selection in the tape before the character selection as was done heretofore.

The circuits controlling the letters and figures shift are shown together with the selec-,

, I anditsleft coil. traced for the tion circuits in Figure 2. The position ofthe zero tongue is controlled by one of the selecting pins P so that when a hole is perforated in the tape at a zero position, thezero tongue is moved against its left hand or marking contact, and when there is no zero hole in the tape, the zero tongue rests upon the right hand or spacing contact.

The seventh tongue, which is shownas the upper tongaie, above the zero tongue, is not controlled by. any" selecting pin, but is mounted on a rocker arm, (not shown) identical with the six pin controlled rocker arms 100, except that it is connected directly with the armature 108 of the operating ma net 110 and oscillates with it. When, therefore,

the magnet 110 is not ener izedthe seventh tongue rests on its'left ban or marking'contact, and when the magnet is energized this contact. Also as the magnet is energized, the six selecting pins P are withdrawn from the tape, causing the selecting tongues to move" over against their spacing contacts. This must be kept in mind in the following explanation.

Suppose a figure character is to be set up in the tape transmitter. passes through the zero hole punched in the tape and consequently the zero tongue is carried over against its marking contact as shown in. Fig. 12. Accordingly there is a circuit from ground on the seventh trans- The zero pin then.

mitter tongue, through its left hand marking contact, to the left hand coil of theshift control relay 112 to plus battery. Its 'armature 112 is moved to the left or figures contact 114, and energizes the left hand coil of the master shift relay through a circuit from ground through armature 112, contact 114, and left hand coil of relay 90 to plus battery. The shift control relay 112 also looks itself on the left side through 3000 ohms The armature of the master shift relay 90, being moved against its left hand contact 117,*'does not energize the shift relays SR on the circuit panels. Consequently these shift relays send out to the tickers the plus polarity required to operate the ticker shift magnets 43 to the figures side.

The circuits for a letter character are similar to those just described, but in this, case the armature of the master shii relay 90 is moved over to its right hand contact 118, thus closing a circuit from plus battery, through armature 90, contact 118, shift relay SR to groundPThe armature ortongue of relay SR is thus drawn against contact 120, estab lishing a circuit through tongue of relay SR, tongue and back contact of relay VVR,-conductor 50, and coil of shift magnet 43-to ground. This impulse causes the armature 42 to shift the arm 37 to the right under the letters platen.

When the tape transmitter magnet is operated to step the tape T? forward, the chcuit from ground in the tape transmitter to the shift control relay 112 is broken by reason of the seventh tongue being moved to i'tsspacing' contact. The locking current tlirou h the armature tongue 112 however holds t e armature firmly on the side to which it was previously moved, until another operating impulse is received from the tape transmitter. This; locking'of the shift control relay 112 keeps one coil'fof the master shift relay 90 always energized and insures good operation of the shift relays SR on the circuit panels. The ratio of operating current to locking is about three and one-half to one.

It is necessary to bring the ground conneccurrent in. the coils of the shift control relay tion to the zero tongue through the seventh or 9 'erating tongue and it'smarking contact in 65 tongue is shifted over against its spacing etapetransmitter for threason that as the tape is advanced, the zero tongue, together with the otherifive selecting tongues, is drawn over to the spacing contact between character selections. Hence if ground was applied'directly to the zero tongue, the shift control re the letters side between consecutive figure;

characters. I have shown the connections, ground is not applied to thezero tongue until the tape transmitter magnet is de-energized and the setting up of the selection is completed.

Upon starting to transmit. stock quotations, the type-wheels of allof the tickers must be at the same point. The first chatacter to be ing further quotations.

' ticker transmitter.

121 to the armature 123 of the unison magnet 124, carries which carries the arm transmitted is the'unison dot whlch appears on the type-wheel in front of the letter A. At

definiteintervalsduring transmission of quotations the ticker transmitter must be allowed to run freely for four revolutions, thereby causing all tickers to rotate. to the unison point, and then starting'the operation again by first printing the unison dot before print- When transmitting continuously straight quotations any one of the three dots occurring before the lettersA,

J or S, may be rinted, depending upon the positionof the ast character.

The operation of the unison function is asfollows: Aspiral 65 is cut on the shaft 65 of the An arm 119, pivoted at a pin 125 which travels in the spiral 65 when the armature is retracted. With. every character printed, the unison magnet is energized, attracting its armature 119 downward, withdrawing the pin 125 from the spiral and the spring 119 starting position, thereby bringing the pin back to the beginning of the spiral. Whenno character is printed the ticker. transmitter shaft runs freely and after four complete revolutions the pin has moved along the spiral until the arm 119 has closed the unison contact 126. All of the tickers have likewise-run to the unison position. The contact 126, in conjunction with the selection for unison, viz: 1, 2, 3, 4, 5 marking, perforated in' the tape and set up in the tape transmitter, prepares a circuit.which is completed by the ticker transmitter when they reach the line of segments corresponding to the unison dot. When this occurs the stop magnet85 is energized, stopping the shaft of the ticker transmitter and causing all tickers to print the unison dot. v

v The circuits involved in the operationof the unison function are shown in Fig. '11

andlalso appear as part of the entire system then'swing's the arm 119 to its tracted, the arm, 86 engages the brushes of illustrated in Figures 1 and'2. It will be seen that although the unison-selection, 1-, 2, 3, 4, 5

marking, is set up in the tape transmitter, the circuit cannot be completed until the unison contact 123 is'closed, which only happens after four free revolutions of the'ticker transmitter shaft. 'The circuit of the unison magnet 124 is closed by the side contact 130 of control relay R, and consequently the unison contact is kept open when printing other characters than-unison. Relay B does not operate on the tape,.st-epper function. Therefore the unison contact closes and re-" printedfoll'owing a group of tape-steppers.

The group of control-relays R R R I Rfltogether with the tape-stepper relay R are shown with their circuits in the lower part of Figure 1. After the circuits correspond.- ing toany character perforated in the tape have operated through the tape transmitter tongues and contacts and the .ticker transmitter selector heads and brushes to stop the ticker transmitter shaft with the brushes on the energized line of segments, it is necessary to advance the perforated tape the spaceof one center hole through the tape transmitter, set up a new selection-in the tape transmitter and release the shaft ofthe ticker transmitter so that it can revolve to the line of segments corresponding to the next selected character. This,is accomplished by a sequence of operations of the control relays.

When a selection is set up in the tape trans mitter and the brushes of the selector heads arrive at the correspondingsegments, a cir- SEQ-conductor 132, back stop and armature tongue of relay R to plus battery. A

As the armature of stop magnet is atthe stop clip 87, thereby stopping the rotation of the ticker tranSmittershaft and the selector and causing the selected character to print on the tickers. Asthe armature of the stop magnet moves towardthe magnet, it withdraws the 'w edge pin 88 and allows the operating contacts 89 to close. This establishes a circuit; from positive battery through operatingcontacts 89, conductor 1341, coil of relay It, left hand or locking coil' of relay R con- 1 ductor 135, tongue and'ba'ck contact of relay Rfi conductor 136 and tape transmitter magnet-110 to ground. Relays R and R and the tape transmitter magnet' 110 are therefore energized simultaneously,'but relays R and TR ZhQVlDgQIIO work to do, other than moving brushes their armatures, areoperated slightly in ad- I if lvan'ce of the tape transmitter magnet.

ltelayR opens the'circuit at its back 0011 so tact through conductor 138 and the coil of As the armature of relay R engaged its left hand contact, it connected stopmagnet 85 to ground through conductor 133, conductor 141, back stop and armature tongue of tape-stepper relay R The stop magnet will be held in energized position as long as the tongue of relay R remains on its left hand, locking contact. This allows the character selection in the tape transmitter to be withdrawn and a new character to be set up. The stop magnet being held in energized condition by the ground applied by relay R holds the shaft of the ticker transmitter stationary until the new character selection is prepared in the tape transmitter.

It was noted that the tape transmitter mag net 110 is energized at the same instant as relay R and the left hand, locking coil of relay R The downward movementof the arm 108 attached to the magnet armature depresses all of the selecting pins P, and causes all of the selecting tongues t to move over against their right-hand spacing contacts, thus breaking up the character selection. The arm 108 also rocks the-lever 143 and causes the star Wheel 145 to-advance the tape T, the distance .of one center hole, bringing the perforations for-the next succeeding character over the selecting pins.

As previously explained, there is a seventh rocker arm (not shown) like the rocker arm 100, which carries the tape transmitter tongues 7, and which is directly connected to 'the armature 108 so'that it moves with it.

. The tongue-7 carried by this arm rests against the left hand or marking contact when the magn'et 110 is de-energized and is shifted- As this tape )transmitter operating con 'tact closes, it establishes a circuit from ground through'tongue 7, right hand or operating contact 00, conductor 146, automatic stop switch 150, conductor 151, coil of relay R conductor 152, coil of relay R conductor 134, operating contact 89 on the ticker transmitter to positive battery. As the armature of relay R -i's attracted, it closes a.

side contact 140 which applies a locking ground to its own coil. The operating contact 0G in the tape transmitter may now be opened, but the relay R will remain energized untilits locking circuit is broken by the opening of the operating contact 89 on the ticker transmitter. The closing of the side contact 140 of relay R also energizes the unison magnet 124 through the already'closed side contact 130 of relay R lVhen the armature of relay R? is attracted and engages its front contact, it completes a circuit from positive battery, through resistance 153, armature and front contact of relay R conductor 154, right hand or release coil of relay R conductor 156 and coil of relay R to ground. The operation of relay R breaks the circuit through 'its armature tongue and back contact, which had energized the tapetransmitter magnet 110. The operation of relay R also de-energizes the left hand or locking coil of relay RH This allows the current in theright hand or release coil to attract the armature to that side and removes the locking ground from the stop magnet 85. As the armature of the stop ma gnet falls back against its back stop, the

wedge gin 88 opens the operating contacts 89 which breaks the circuit through the coils of theirelays R and R allowing these relays release of relay R breaks the circuit through to return to their unoperated position. The

theleft hand or release coil of relay R and the coil of relayRfi The tongue of relay R remains on its right hand contact while the tongue of relay Rfreturns to its back contact. All relays are now in their normal unoperated positions and are ready for a repetition of the same cycle of operations when the next character is printed. 1

The de-energizing ofthe stop magnet 85 also releases the ticker transmitter shaft, allowing the brushes to revolve .overthe selector heads until they reach the line ofsegments corresponding to the next character Which has been set up in the tape transmitter.

If the new character thus set up in the tape 1 transmitter is the same as the character which has just been printed, there will be a circuit for this second character selection to the stop magnet through the same line of segments'on thev selector head. Thisvcircuit is established for the second character before the ticker transmitter brushes have left .the segmentupon which they had stopped for the printing of the previous character. Hence when the locking ground is removed from the stop magnet by the movement of the tongue of relay R to its right hand contact under the.

influence of the current inits release coil, as

tion brush. Relays R R R also remain energized.

It is necessary to release the ticker transmitter shaft and allow the brushes to revolve until they reach the same character selection when they will be stopped andthe same character will be again printed.

As the tongue of relay R strikes its right hand contact, it completes .a circuit'from releasing the shaft and allowing the thrushes to revolve until ground through tongue and'back contact of relay R", tongue of relay R ,'conrluctor 157, coil of relay R conductor 158, front, contact and tongue of relay R, resistance 153to posi-. tive battery. This energizes relay R and breaks the circuit ofgthe stop magnet, thus the. ticker transmitter they reach the lineof'segments of the same character selection when they will be stopped and the second of, the repeated characters will be printed. The release of the stop magnet opens the operating contacts 89 and releases all of the relays as previously explained. Although relay R receives impulses on all characters its operation'lis not required except when characters are repeated.

An arrangement of control relays can be provided in place of relay R which will prevent the ticker transmitter shaft and the tickers being worked from it from releasing when .a character is to be-rep'eated. This arrangement will cause the line 51 leading to the escapement magnet 34 and the press magnet in the tickers to be opened and closed asmany times as the character is to be repeated but does not change the polarityon line 51, and therefore does not rotate the typewheel. This causes the'press magnet 45 in the tickers to be alternately released and attracted, another impression of the character being obtained each time the magnet is attracted. The ticker transmitter shaft .and tickers are released and allowed to revolve only when a'different character selection is set up in the tape transmitter. A diagram of these connections is not shown. as the method illustrated whereby the typewheel is allowed to revolve between repeated characters is considered preferable.

The automatic stop switch is mounted on the base of the tape transmitter andis provided with a make and break contact 150 havmea'oaa ing-side but beyond this no action can take place because the automatic stop switch is open. .WVhen .more tapeis perforated the switch is allowed to close and the other con-. trol relays operate in sequence as previously explained.

During a dull market when quotationsare few and are coming in at irregular intervals, it becomes necessary to advance the perforated'type with one or more quotations on it from the perforatorto the tape transmitterfor immediate transmission. As the tape must not be broken, there will be about three and one half inches of blank-tape between the groups of quotations. This blank tape must he stepped through the tape,- transmitter in order to reach themext quotation but. i

the ticker transmitter and tickers must not be operated while it is being passed through.

The tape stepper character which is used between these separated groups of quotations is a blank in the tape, that is, none of the holes are perforated and consequently circuits are shownin Figf binecl those portions which are in the tape stepper circuits.

Referring to Figure 13, the tape transmitter tongues are shown resting against the spacing contacts as for the tape stepper selBCtlOIL' The spacing contacts of the left hand B set'are connected as shown to the two groups of tape ste )per segments onthe B? selector head. racing. through the selection circuit, it will be seen that there is a circuit from. ground in the tape transmitter through the contacts and segments and the brush C and conductor 160 to'the coil of tape stepper relay R The circuit from the other side of relay R passes through conductor 138, back contact and tongue of relay R conductor 161, back contact and tongue of relay Rflito positive battery. Tape stepper relay. R is'the'refore energized but the ticker transmitter is not stopped and printed. i

Relay B when energized, locks itself in an operated position by applying a ground connection to its coil through its armature no character is tongue and front contact. The side contact I 162 of relay R is also closed by. the armature and this closes a circuit to energize the tape transmitter magnet 110, from positive bat" tery, side contacts 162, conductor 163, tongue and back contact of relay R conductor 136 to the transmitter magnet and ground. The operation of this magnet advances the tape one center'hole through the tape transmitter.

At the end of the stroke of the armature 108, the transmitter tongue? is moved against its. right hand contact OC, which I have designated the operating contact, and this energizes relay R the circuit being from ground, through the seventh transmitter tongue, conductor 1 16, automatic cut-out 150, conductor 151, relay R conductor 152, co ductor 155, left hand coil of relay R conduw tor 135, conductor 163, side contacts 162 of relay R to positive battery. The breaking of the circuit through the back contact and tongue of relay R releases relay R from the influence of its locking circuit and its tongue returns to its. back contact. The opening of the side contact of relay R releases the tape transmitter magnet 110 and also relay R All of the relaysare thus returned to their unoperated position ready for the next tape stepper impulse.

Exactly the same operation of relays takes place if the rub-out selection is set up in the tape transmitter. As there are two groups of tape stepper segments on the selector head, the tape can be stepped forward at a rate which is twice the free revolution' speed of the ticker transmitter.

Although the impulse tlir-ctgh the right hand or locking coil of relay-R is not suiticient to throw the tongue of the relay to that side, as a measure of safety I bring the ground connection to the tongue of relay B through the back contact and tongue of relay R Thus even if relay B does operate on the tape stepper function, it cannot'operate the ticker transmitter stop magnet as its ground circuit has been removed by the operation of relay R.

While printing characters, the pins P are withdrawn from the tape and the tongues t of the tape transmitter are moved over to their spacing contacts each time that the tapeis stepped ahead. The tape stepper selection is thus set up momentarily each time that the tape is advanced between character selec tions. To prevent relay R from operating at this time, the cireuit from the coil of relay 1%? is brought through the back contact and tongue of relay R Relay R? operates for every printed character and therefore relay R cannot be energized while printing is taking place.

1. An automatic telegraph system, comprising a tape-controlled transmitting apparatus and a typewheel printingmcchanism, said transmitting apparatus embodying a selecting device having cooperating movable and stationary contacts, means for selecting and positioning certain of said movable con-. t cts simultaneously with relation to theircooperating stationary contacts in accordancewith a code combination determined by the permutations of the perforations in the tape,

a segmented circuit controller having 'circuit connections tosaid contact device, motoractuated brushes movable over the segments of said controller, .and electro-magnetic means for stopping said brushes at a point determined by .a circuit passing serially through a plurality of said segments and contacts vpredetermined by the selected arrangement of-perforations in the tape.

2. In an automatic telegraph system, a tape controlledtransmitter including a motor-actuated circ'ilit selector having relatively movable contact brushes and segments,'and comprising a plurality of movable and stationary contacts, means for moving them simultaneously into one grouping or another grouping, determined by the arrangement of the perforations in the tape, and-a'magnet operating to stop the transmitter by including a plurality of said certain segments and contacts connected serially ina circuit and grouped in a manner determined by the particular selection of perforations in the tape.

3. A telegraph transmitter, comprising a plurality of pivoted levers each carrying a contact member, a series of contacts upon opposite sides of said contact members with which they are adapted to engage, a plurality of tape-controlled members operatively connected with said levers to control the movements of said .contact members, a selec tor head having segments electrically connected with said contacts, motor-actuated brushes arranged to travel over said segments and means for stopping the movement of 1 said brushes when they close a circuit through certain of said segments and certain of said contacts predetermined by the selec-' tion of said tape-controlled members correis closed by the brushes through certain of.

said segments and contact members, the connections between said segments and contacts being arranged to provide two stop positions for each figure character and one sto position for each letter character'selected y the. combination, of perforations in the tape.

I for causing the transmitting apparatus and the typewheel printing mechanism to makeseveral freerevolutions without printing and stop' ata definite point, 'then causing the printing mechanism to print a unison character and permittingthe transmitter to move to the next succeeding character.

8. A telegraph system as set forth in claim 2, in combination with control relays which cause the transmitter brushes to remain upon the segments at which they were stopped when the next succeeding character or characters perforated in the tape are the, same.

as the preceding character. I

9. A telegraph transmitter, comprising a perforated tape, code selecting mechanism, embodying a contact-makin a plurality of pairs of stationary contacts, contact levers each movable between a pair of said contacts, means for selecting and p0- sitioning certain of said contact levers simultaneously with relation to their cooperating stationary contacts in accordance with a code combination, a segmented selector disk or face plate having segments divlded into the same number of radially arranged groups as there are combinations between said movable levers and said pairs of contacts, a plurality of brushes relatively rotatable with respect to the segmented selector face plate, and electrical connections between said contact levers, said pairs of contacts, the segments ofsaid faceplate and said brushes, suchthat for any one combination of contact levers a complete electrical circuit is obtainedat only one of saidradial groups of segments.

10. A telegraph transmitter, comprising a plurality of pivoted levers each carrying a contact member, a series of contacts upon-opposite sides of said contact members with which they are adapted to engage, a' plurality of tape-controlled members operatively connected with said levers to control the movements of said contact members, in combination with printing apparatus provided With .figure and letter. characters and operatively connected to respond to impulses initiated by said transmitter, means associated witlrthe printer for determining'whether a figure or a letter shall be printed, said means being controlled by one of said members, which member is controlled by the presence or absence of an auxiliary perforation inthe tape.

11. In an automatic telegraph system, a

device having receiving printing instrument of the step by step type, means controlling the step by step movement of said instrument to determine the printing points, a transmitting apparatus comprising selector mechanism having segmented rlngs, electrical connections associated with said rings, and Jorushes engaging said rings and movable relatively thereto to efiect the electrical circuits for sending an impulse'to stop said controlling means. and operate said printing instrument.

12. 'In an automatic telegraph system, a movable tape having perforations representing pie-determined functions of a transmitting apparatus, mechanism for electrically controllingthe transmitting functions, and

having circuits controlled by said tape perforations, said functions including the advancement of the code-perforated tape, shifting from letters to figures and vice versa, and selection of the printing point, said functions beilngveifected at regular or irregular interva s.

13. A telegraph transmitter as set forth in claim 3, and a plurality of auxiliary relays and a magnet arranged in associated circuits to cause said motor-actuated selector head brushes to remain upon the segments at which they were stopped While the code-perforated tape is advanced toithe next character and the tape-controlled members are arranged in accordance with the new character selection.

14. The method of controlling a case shift mechanism in a telegraph printer which comprises the step of allotting a shift control v condition to each code combination of select ing conditions to control the case shift mechanism. I i

,15. In a printing telegraph system, a printing mechanism having a normal and a case shift position,,a selecting mechanism conits trolling saidjprinting mechanism,.a distributor having a plurality of contacts operating to set up code combinations for controlling said selecting mechanism, a case shift mechanism, and means controlled by one ofsaid distributor contacts for establishing an extra case control condition with each of said code combinations fop controlling said case'shift mechanism.- v 4 -fil6. In a combination a printing mecha nism; a selecting mechanism controlling said printing mechanism; a distributor having a plurality of contacts controlling said selecting mechanism; a case ishi mechanism; an operating magnet for said case shift mechanism; and one of said distributor contacts controlling said magnet independently of said selecting mechanism.

17. In combination, a printing mechanism v having a normal and a shift position, means responsive to code combinations of conditions for controlling the operation of said printing mechanism" andelectrmmagneticmeans responsive to a condition added to each code combination for controlling the printer to its shift or normal position.

18; In combination, a printing mechanism having a normal and a shift position, means responsive to code combinations of conditions for controlling said printing mechanism, electro-magnetic means responsive to a condition added to each code combination for controlling the operation of said printing mechanism to its shift or to its normal position, and means for maintaining said electro-magnetic means in a fixed position during succeeding code combinations While no change in the shift position is taking place.

' 19. In a printing telegraph system, means for transmitting code combinations of character selecting conditions, means for transmitting an extra case control condition with each of said'code combinations of selecting conditions; and a printing mechanism selectively positioned in accordance with said code combinations of selecting conditions having a plurality of character ease printingpositions, and responsive to said extra conditions for selecting the character case from whic printing is to be eifected.

' 20. In a printing telegraph system, a transmitter, a receiver comprising a plurality of character case printing positions each having a plurality of characters, means controlled by said transmitter for generating code combinations of .selecting impulses for simultaneously selecting a character in each case, means controlled by said transmitter for generating an impulse added to each code combination of impulses, and means responsive to said added impulse for selectingthe shift or -unshift selected character.

21. In a printing telegraph system, a transmitter, a receiver comprising a plurality of groups of characters each group containing gether With a case selecting condition added to each code combination, and a receiver havgraph system comprising a receiver having a plurality of printing cases, the method of operation which comprises adding to each'selecting permutation code combination of character selecting conditions, an added solecting condition toselect the case from which printing is to be eifected. i

25. In a printing telegraph system; a re ceiver comprising a tape having ofisetfigure and letter case printing positions; print-- ing mechanism for'said figure case POSItlOIl,"

printing mechanism for said letter case position, a transmitter for. generating-character selecting "code combination 'of conditions to select simultaneously a character tobe printed in each case position;-and means including said transmitter for generating a case selecting condition added. to each character se-' lecting code combination to select the case from which printing is to occur.-

In testimony whereof I afiix my signature; EVAN R. WHEELER,

a plurality of characters, means controlled by said transmitter for generating code com binations of conditions to simultaneously select a character in each of said groups, and means controlled by said transmitter for generating a condition added to each code combination for selecting one of said groups I whereby a selected character group is printed. 4

22'. In a printing telegraph system, a transin the selected iic mitter, a receiver comprising a plurality of I groups of characters each group containing a plurality of characters, means controlled by said transmitter for generating code combinations of impulses to select a character .in

each of said groups, and means controlled by v said transmitter for generating an impulse added to each code combination to select one of said groups whereby a selected character in a selected group isprinted.

23. In a printing telegraph system comprising a transmitter adapted to transmit code combinations of selecting conditions to-