USRE18208E - O oooooo - Google Patents

Description

Sept. 22, 1931. Re. 18,208

E. R. WHEELER AUTOMATIC TAPE, CDNTRDLLED :TRANSMISSION FOR TICKERSV Original Filed Dec. 5, 1924 '7 Sheets-Sheet 1 /66 f fa Segmencs l Tf C figg/ref E 4 l 7? TRW/azar Sept. 22, 1931.

'E. R. WHEELER AUTOMATIC TAPE CONTROLLEDVTRANSMISSION FOR TICKERS original Filed Dec. 5, v15,24 7 sheets-sheet 2 Zim dash/)Ver Warts/ruik r Operating Nugget Zrmpemenf Press 3d? Sept. 22, 1931.

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E.| R. WHEELER AUTOMATIC TAPE CONTROLLED TRANSMISSION FOR TICKERS Original Filed DecY 5, 1924 7 Sheets-Sheet 5 :b Chigi- TI- D fla- ZR Weder Sept. 22, 1931. Re. 18,208

E; R. WHEELER AUTOMATIC TAPE GONTROLLED TRANSMISSION FOR TICKERS Original Filed Dec. 5, 1924 '7 Sheets-Sheet 6 7 2f s f s DOE :TII

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Sept. 22, 1931.

Ea R. WHEELER AUTOMATIC TAPE CONTROLLED TRANSMISSION FOR TICKERS Original Filed Dec. 5, 1924 '7 Sheets'heet 7 I wm bhv)

Reissued Sept. 22,1931 l UNITED STATES PATENT. oEFlcE NEW JERSEY, ASSIGNOR TO THE WESTERN ORK, N. Y., A CORPORATION OF NEW YORK .AUTOMATIC TAPE CONTROLLED TRANSMISSION FOR TICKERS f Original No. 1,765,042,4dated June 17, 1930,'Seria1 No. 754,188, led December 5, 1924. i Application for reisslie filed November 6, 1930. Serial No. 493,872. Y

This invention relates to improvements in the method of transmitting and receiving quotations and in the apparatus and circuit arrangements therefor. 2

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 operator, by

, the manipulation of keys on a keyboard, 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 b'e transmitted are first transcribed by the operator by means of a keyboard perforator upon a tape in telegraphic code and the perforated tape is then fed through a tape transmitter which, in conjunction with a ticker transmitter, controls the character impulses sent over` the lines to the so-called tickers at' the brokers or other receiving oiices. I s

I can best explain theseveral features of my invention in connection with wthe accom- `panying drawings in which-Figures 1 and 2, taken together, illustrate apparatus at the transmitting and receiving stations for carrying out my automatic stock ticker transmission system; Fig. 3'i's an illustrative diagram of the circuits connecting the contacts of the tape transmitter with the segments of thev selector heads, the latter being shown inm 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-fin telegraphic code characters; Fig. v (i shows the order or arrangement of characters ori the face of the typewheel of the ticker lwhen developed ,'Fig. 7 illustrates a specimen of--a 'stocktlcker tape; Fig. 8 illustrates the selection circuits for the letter D; Fig. 9 illustrates Jthe circuits for the letter Y; Fig. 10 illustrates the selection circuits on the two selector heads when the same character is duplicated; F ig. 11 shows the circuits for the unison function; Fig. 12 shows the circuits for the controlling of the shift to letters 0r to figures; and F ig. 13 shows the circuits for operating the tape stepper function.

There are usually a number of ticker recorders on the same circuit controlledby a i magnet 32 and the coil 34.

relay at the transmitting station, the relays being positioned upon circuit panels. The tickers are self-winding and operate continuously to print the market quot-ations upon theY` 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 corresponding to the character which it is'desired to print, to hold it stationary for a defi-V nite interval, meanwhile preparin the next succeeding character selection an then releasing'the transmitter and allowing it to rotate to the next character position.

The essential features of the self-winding ticker are shown in the lower right hand portion of Fig. 2. This will be recognized as vthe well-known step-bystep type of re-v ceiving printer usually found in brokers oficesI and commonly designated as a ticker. A type-wheel 20, made in two sections, is secured to shaft 21. AOne section of the typewheel carries upon its periphery thirty letter characters and the other section carries thirty figure characters, the characters on the two sections being in exactalinement. The order in which the characters appear on vthe type-wheel'is shown in Fig. 6. I have illustrated in Fig. 7,. a section of stock ticker 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 byfthe winding magnet 27, acting through the pawl 28 and ratchet 29. The shaft is prevented from continuous rotation by escapement anchr 30, which engages the teeth of escapement wheel 31. -The escapement anchor is controlled Yby the permanent The reversals of current through the coil 34 cause the anchor to shift back and forth, each movement releasing t-he escapement 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 bystep to the charactenwhich it is 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.l The driving spring 25 is maintained under approximately constant tension by the winding magnet 27, which is operated periodically by interrupting the current passl ing through it.

Before printing a character, it is necessary to determine whether a letter of a figure character shall be printed. .Each section of the type-wheel is provided with a separate platen 36, 36" and located beneath the two platens isa shift arm 37 carried by .a link i 38, pivoted to the printing lever 40. The

lifts the arm 37, which strikes the letters y .platen and presses the tape against the face of the type-Wheel, thereby printing the character'to which the type-wheel had previously been rotated. 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 tape against the typewlieel. After each character is printed, the tape is advanced the space of one character on the down stroke ofthe printingY lever.

The shift magnet requires a positive or a negative current impulse, depending upon whether a letter or a ligure character is to be printed. It is necessary, therefore, to

send over the line 50, positive or negative current to actuate the shi-ft magnet and also to break said impulses into regular pulsations for the purpose of operating the winding magnet 27. The press magnet, which is in the same circuit withthe escapement magnet responds to current of either olarity but only operates upon a long impu se and therefore does not respond to the rapid reversals which actuate the latter.` Hence on line 51, it is necessary to send rapid reversals of current of sullicient number to cause the type-wheel to rotate to the character which it is desired tov print and then to prolongthe last impulse of the group of reversals to energize the press magnet and print the-c'haracter. l

In type-wheel printing receivers of the ,step-by-step type it is essential that the typewheels of all tickers on a circuit shall start at the same character, after which the typewheels will rotate in unison with the esca ment impulses passing over line 51. To this end the type-wheel shaft 21 is rovided with a worm 52, which is engaged the end 53 of an arm 54, pivotally mounte for vertical movement at 56 in a post 57, which is rotatable on a vertical pivot in its support 58.' When the shaft 21 has made three revolutions without printing 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 before the letter A on the type-wheel, is in position to be printed when the press magnet 45 is energized. YV hen the armature 44 of the press magnet is raised to print the .unison dot, a forked arm 60, attached to the armature, lifts the arm 54, disengaging it from the stop 59 and permitting the arm to be swung by its spring 61, back to initial position at the left of the worm. This releases the shaft 21 leaving Iit free to move step-bystep under the control of the escapement impulses. This operation of allowing the tickers to run freely during three or four revolu tions, in order to position all of the ticker type-wheels at the "unison dot is permitted at regular intervals to insure their uniformity of position.

The line impulses are transmitted to the self-winding ticker in the following manner. At the transmitting station, each group of from eight to fifteen tickers in a circuit, is operated from a single set of relays,l which are preferably mounted upon a circuit panel, thel relays of the several groups being controlled by a ticker transmitter. As many circuit'panels are provided as may be 5found necessary to divide the tickers into suitable groups, but all of the circuit panels are controlled from the same transmitter.

The essential features of the ticker transmitter are illustratedin the upper portion of Fig. l. The shaft 65, driven by a uniform speed motor 66, carries a three-point cam 67, which controls the winding contact 68, and through the gearing 69, drives the shaft 70 at a speed fifteen -times greater than the speed of the shaft 65. An eccentric 71 on thesba'ft 70, operatesa pole-changer tongue 72, which is connected to positivebattery. As it alternately engages contacts 73 and 74 it constitutes an impulse generator which transmits line impulses through conductors 75 and 76, respectively, to the right and left hand coils of polar line relay 78, causing the tongue 79 of the latter to follow the motion of the tongue 72. The right and left contacts of the relay 78 are connected to the positive and negative poles of the line battery and hence as the armature 79 vibrates rapid reversals of current are sent over the line 51 to the escapement andr press magnets of the tickers. The actuation of the escapement magnet causes the type-'wheel shaft 21` to revolve step-by-step in unison with the incoming impulses and consequently in unison with the rotation of the ticker transmitter. These rapid reversals of current do not affect the press magnet.

After the ticker transmitter and the tickers have been rotated to the position corresponding to' the character which it is desired to print, the .last impulse sent over the line 51 must be prolonged in order to operate the' press magnet. This is accomplished by stopping the rotation of the ticker transmitter shaft'tfor as longP an interval as is required to operate the press magnets. With the shaft held stationary, the pole-changer tongue 72 rests on oneI or the other contact, thus holding-the armature 79`of the polar line relay on its corresponding contact and thereby sending out the require Llong impulse over the line 51.

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 various permutation code Vselections, is connected in such manner to the selector heads A and B of the ticker transmitter Tt, 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 heads are stationary, While, the brush-arms 80 and 81, which carry the 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 point in the'rotation of the brushes, from ground in the tape transmitter, through certain segments in the selector heads, through brush A1, ring A2, brush A3, through conductor 84 and stop magnets 85, conductor 132, to positive battery by way of back Contact and armature of relay R5. The energization of the stop magnet 85, causes the stop arm 86, carried by its armature, to engage the end of the stop clip 87, thereby stopping f,the rotation of both shafts 65 and 70.

As previouslystated, 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 is fo 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 selec: tion in the tape transmitter.

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 transmitterl revolves freely, the cam 67 opens and closes the Winding contact 68 three times per revolution of the shaft 65. thus causing the Winding relay WR to alternately attract and release its tongue or armature and in turncaus'ing th Winding magnet 27 to attract and release its armature, thereby keeping the clock spring 35 Wound to supply the driving force to the type-Wheel shaft 21, The circuit for the-winding Contact passes through Winding relay then falls back to its back contact and insures a circuit through the line 5() to operate the shift magnet 43 before the press magnet 45 actuates the arm 40 to print the character.

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, Will now be described more in detail.

As is'Well known by those familiar with telegraph apparatus, the quotations which it is desired to transmit on a permutation code type of transmitter are prepared by an operator in the form of a perforated tape by means of a keyboard perforator having a key for each character appear/ing on the type- Wheel of the recorder or ticker, each character haring a dierent combination of holes constituting the character selection. In the presy ent system, in addition to the character keys, I employ three function keys, the unison, the tape and the rub-out, the operation of which Will be described hereinafter.

The width of the tape permits six holes to be perforated. Of these is designated the zero hole, is for the purpose of distinguishing betveen figures and letters,y The zero hole is perforated on all figure characters is not perforated for letter 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.

After the perforated tape. is prepared by 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 order to adapt it to my present purposes. The essential features of this tape transmitter are illustrated in the upper portion of Fig. 2. Six reciprocableA pins P are employed, one for each hole in the tape, and each pin controls a rocker-arm 100, carrying tWo-semi-flexible contactl tongues t, t, insulated from each other. For the sake of clearness I have only illustrated one of these rocker-arms. These flexible contacttongues play between marking contacts M and spacing contacts S, the contacts being connected to the respective f segments of the selector heads A and B, over which rotate thebrush arms 80 and 81, xed

the top hole, which to the transmitter shaft. As the brushes are ligure I have indicated diagrammatically the vtape transmitter tongues and cooperating contacts and have indicated the selector head f segmented rings toV which the contacts-are connected. x, I

The tape transmitter tongues marked 1, 2, 3. 4 and 5, are the ones which control the character selection and the stopping of the ticker transmitter. The right hand set of tape transmitter contacts is connected directly to the segments of the A selector head, and the lett hand set o't tape transmitter contacts is connected directly to the segments of the B selector head. The character corresponding to each set of segments appears on the diagram just above the developed segmented rings in Figure 3.

VVhen a selection is made in the tape transmitter by certain of the pins I), passing through perfor-ations in the tape indicated at Ta, the tongues, which correspond tothe pins which passed through the perforations are moved over'against their marking contacts M, while the other tongues remain against their spacing contacts. This selection or arrangement of the tongues prepares acircuit which is completed by. thebrushes carried on the brush arms 8() and 81 as they come to the set. of segments corresponding to the selection set up. The stop magnet 85 is energized by the completion ot the circuit through it and causes the stop arm S6 to arrest the rotation of the ticker transmitter shaft 65, with v the brushes resting on the line of segments corresponding to the selected character. The operations which take place will be understood by the following specific examples.

Figure 8 shows the setting of the tongues in the tape transmitter for the selection of the letter D. Below the tape transmitter tongues and contacts is shown the section of the A selectorhead for the character-set up inthe tape transmitter. 1 By comparing Figure 8 with F igure. it will be seen that the segments shown in Figure 8, are in the correct relative position as they actually occur 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 theposition shown in Figure 8, and with the 'p ticker transmitter brushes on the line of segments corresponding to the character selected. there is a circuit from ground on No. 1 tongue of thetape transmitter, throughl the marking. IThe circuits for this selection arel shown in Figure 9 and' will be easily understood. The selection for any character on the A selector head maybe traced through in a similar manner, first setting up the correct selection in the tape transmitter, as shown in Figure 3, and then asstuning 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 head where the revolving brushes complete a circuit to the stop magnet for any one character set up in the tape transmitter. Each character on the ticker type-wheel appears only once on the A selector head.

Figure 4 is a face View of the two selector heads. The brush arms 8O vand 81 are opposite each other on the shaft and consequently th'e brush arm 80 is at the top of the A head when the brush arm 81 is at the bottom ofthe B head. Furthermore as the heads faceeach other, the brushes will rotate thereon in opposite directions as indicated by the arrows.

By referring to Figure (i showing the developed face of the type-wheel it will be observed that there are two sets of Figures 1 to 8 inclusive, two iigure dots and three letter dot-s. l It is desirable, of course, that the ticker transmitter and consequently the tickers being worked from it, shall stop at the firstone of the duplicate characters when that character is set up in the tape transmitter.

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

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

The vselection for the Figure 4 is the same in the two positions, that is, O, 1, 4 marking. 'It is obvious'then that if the character 4 is perforated in the tape a circuit will be prepared when the brushes reach the iifth position on the A head and likewise in the sixteenth sition on the B head. The ticker transmitter brushes will therefore complete a circuit through the stop magnet 85, in either position and the brush arm will be stopped in whichever position it reaches first.

If the selection for the letter D, that is 1, 4 marking, is set up in the tape transmitter, the ticker transmitter must stop only on the lifth position of the A selector head andin no other position on either head. The letter D and Figure 4 differ only in that the latter has an O perforation in addition to the 1, 4 perforations on the tape. The means of distinguishing between the nearly similar selections for D and 4 can best be explained by reference to the diagrams of Figure 10.

The selection for the character 4, as setA up in the tape transmitter is shown in Figurel 10, the selection being 0, 1, 4 marking. By

tracing the circuits, it will be seen that the` stop magnet.85, can be energized either in the fifth or in the sixteenth position of the brushes.v 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, 4 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 traced for the other duplicate characters. It will be observed that there is no circuitto the stop magnet 85 directly from the segments of the B7 selector head but thatthe selection circuits, after passing through this head, pass back to the zero tongue of the tape transmitter and then to the last ring on each selector head.

. My method of shifting to either letters or figures in printing a character will now be described. A figure character is denoted by a. hole punched in the tape in the zero position in addition to the holes denoting the combination for that particular character.

marking contact, and When there is no zerou hole inthe tape, the zero tongue rests upon the right hand or spacing contact.

The seventh tongue, which is shown as the upper tongue, above the zero tongue. is not controlled by anyl selecting pin, but is'A lmounted on a rocker arm, (not-shown) identical withthe six pin controlled rocker arms n lishing a circuit through 'This eliminates the necessityof punching a 100, except that it is connected directly with n Suppose a ligure character is to be set up y in the tape transmitter. The zero pin then passes through the zero hole punched'in-the tape andconsequently the zero tongue is carried over against its marking contact as shown in Fig. A12. Accordingly there is a circuit from ground on the seventh transmitter tongue, through its left hand marking contact, to the left hand coil of the shift control relay 112 to plus battery. Its armature 112a is moved to the left or figures contact 114, and energizes the left hand coil of the master shi/ft relay 90 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. locks itself on the left side through 3000 ohms and its left coil. 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 thesel shift relays send out to the tickers the plus polarity The circuits for a letter character are similar to those just described, but in this case the armature of the m'aster shift 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 required to operate f the ticker shift magnets 43 to the figures side.

ground. vThe armature or tongue tof relay Y SR is thus drawn against contact 120, estab-S tongue of-relay SR, tongue and back contact of relay WR, 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. I

When the tape transmitter magnet is operated to step the tape Ta forward, the circuit from ground in the tape transmitter. to the shift control relay 112 is broken by reason ofthe seventh tongue being moved to its spacing contact. The locking current through the armature tongue .112iL however holds the armature firmly on the side to which it was previously moved, until another impulse is received from the tape vtransmitter. This locking ofthe shift control relay 112 keeps one coil of the master shift relay 90 always energized and insures good operation of the sh1ft relays SR operating panels. The ratio of operating current to character selections.

locking current in the coils of the shift control relay is about three and one-half to one.

It is necessary to bring theground connec- ,tion to the zero tongue through the seventh 'the shift levers in the tickers would then be moved back to the letters side between consecutive figure characters. As I have shown the connections, ground is not applied to the zero tongue until the tape transmitter magnet is ole-energized and the setting up' of the selection is completed.

Upon starting to transmit stock quotations, the type-wheels of all of the tickers must be at the same point. The first character to be transmitted is the unison dot` which appears on the type-wheel in front of theVx letter A. At definite intervals during transmission of quotations the ticker transmitter must be allowed to run freely for fourrevolutions, thereby causing alltickers to rotate to the unison point, and then starting the operation again by first printing the unison dot before printing further quotations. When transmitting continuously straight quotations any one of the three dots occur-A ring before the lettersA, J or Smay be f printed, depending upon the position of the last character. f

The operation of the unison function is as follows z'- Y A spiral a is cut on the shaft 65 of the ticker transmitter. An arm v119, pivoted at 121 to the armature 123 of the unison magnet 124, carries a pin 125 which travels in the spiral 65* when the armature is retracted. With every character printed, the umson magnet is energized, attracting its armature which carries the arm 119 downward, withdrawing the pin 125 from the spiral and the spring 119then swingsf the arm 119 to its starting position, thereby bringing the. pin back tothe beginning of the s iral. When no character` is printed the tic er transmitter shaft i'unsfreely" and after four complete `*revolutions the pin has moved along the spiral until the arm119 has closed the unison contact 126. All of the tickershave 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 lin the tape transmitter, preparesga circuit which is completed by the brushes of the ticker transmitter whenthey reach the line of segments corresponding to the unison dot. When this-occurs they stop magnet 85 is energized, stopping the shaft of the ticker transmitter and. causing all tickers to print the unison dot. y

rI'he circuits involved in the operation of the unison function are shown in Fig. 11 and also appear as part of the entire system illustrated in Figures 1 and v2. It will be seen y thatalthough the unison selection, 1, 2,13, 4, 5 marking, is set up in the tape transmitter, the circuit cannot be completed until the unison contact 126 is closed, which only happensafter four free revolutions of the ticker trans-A mitter shaft. The circuit of the unison magnet 124 is closed by the side contact 180 of control relay R1, and consequently the unison contact is kept openwhen printing other Characters than unison. Relay R1 does not operate on the tape stepper function, Therefore the unison contact closes and remains closed during a group of tape-stepper functions so that it is not necessary to wait for the' four free revolutions of' the ticker tra-nsmitter shaftbefore the`unison dot can be printed following a group of tape-Steppers.

The group of control relays R1, R2, R1, R1, R5, together with the tape-stepper relay R*1 are shown with their circuits in the lower part of `Figure 1. After the circuits correspondingv to any character perforatedin the tape havev operated through the tape transmitter tongues and contacts and the ticker transmitter selector heads and brushes 'to stop theticker transmitter shaft with the brushes on the energized line of segments, it is necessary to advance the perforated tape the space of one center hole through the tape transmitter, set up a new select-ion in the tape transmitter l and release' the shaft of the ticker transmitter lso 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. c

When a selection is set up in the tape transmitter and the brushes of the selector heads arrive at the corresponding segments, a circuit is closed from brush Aa of the selector head A, through conductor 84, stop magnet 85, conductor 132, back stop and armature tongue of relay R5 to plusbattery.

As the armature of stdp magnet 85 is attracted, the arm 86 engages Vthe stop clip 87, thereby stopping the rotation of the tlcker transmitter shaft and the selector brushesv and causing the selected character to print on the tickers. As the armature -of the stop magnet moves toward the magnet, it` with# draws the wedge pin 88 and allows the operating contacts 89 to close. This establishes a circuit from positive battery through operating contacts 89, conductor 134, coil of relay R1, left hand or locking coil of. relay R2, conductor 135, tongue and back contact of relay QR, conductor 136 and tape transmitter magl net 110 to ground. Relays R1 and R2 and the tape transmitter magnet 110 are therefore energized simultaneously, but relays R1 and R2 having no work to do other than moving their armatures, are operated slightly in advance of the tape transmitter magnet.

Relay R1 opens thecircuit at its back contact through conductor 138 and the coil of tape-stepper relay R6 so that Ri cannot be energized while the character is being printed. It also closes its side contact 130, thus preparing a circuit to the coil of the unison magnet 124 on the ticker transmitter. This magnet is not energized.` however, until "the side contact 140 of relay R3 is closed.

As the armature of relay R2 left hand Contact, it connected stop magnet 85 to ground through conductor 133, conducto 141, back stop and armature tongue of tape-stepper relay R6. The stop magnet will be held in energized position as longas the tongue of relay R2 remains on its left hand, locking contact. ,This allows the character selection in the tape transmitter to be withdrawn and a new charac ter to be set up. "The stop magnet being held in energized condition by the ground applied by relay R2. holds the shaft of the ticker transmitter statio`nary until the new character selection is prepared in the tape transmitter.

It was noted that the tape transmitterv magnet 110 is energized at the same instant as relay R1 and the left hand, locking coil ot' relay R2. The downward movement of the arm 108a 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 108a also rocks the lever 143 and causes the st-ar wheel 145 to advance the tape T2, 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 magnet 110 is de-energized and is shifted over to the right hand or spacing contact when the magnet is energized. A ground connection is applied to the tongue, as shown in Fig. 12, and the marking contact controls the letters and figures shift in the manner previously explained. The spacing contact is so adjusted that the tongue 7 makes con" act with it just as the arm 108 reaches the lowest point in its stroke and the stepping of the tape 1s nearly completed. This Contact will be referred to as the tape transmitter operating cortact OC.

s -this tape transmitter operatingcon-` engaged its tact closes, it establishes a circuit from ground through tongue 7,-right hand or operating contact OC, conductor l146, automatic stop switch 150, conductor 151,'coil of relay R2, conductor 152, coil of relay Rlfcondfuctor 134, operating contact 89 on the ticker transmitter to positive battery. As the armature of relay R2 is attracted, it closes a side contact 140 which applies a locking ground to its own coil. The operating contact OC in the tape transmitter may now be opened` but the relay Rs will remain energized until its locking circuit is broken hy the opening of the operating contact 89 on the ticker transmitter. The closing of the side Contact 140 otrelay R2 also energizes the unison magnet 124 throughthe already closed side contact 130 of relay R1.

' When the armature of relay R3 is attracted and engages its front contact, it completes a85 The operation of relay-R4 also deeenergizes i the left hand or locking coil of relays' R2.

This allows the current in the right hand or release coil to attract the armature to that sideand removes the lock-ing. ground from the stop magnet,85. Asthe'armatureof the stop magnet allsback against its back stop, the wedge pin 88 opens the operating contacts 89 which breaks the circuit through the coils of the relays R1 and R3, allowing these relays loo to return to their unoperated position. The

.release of relay R2 breaks the circuit through the left hand or release coil of relay R2 and the coil of relay R4. The tongue of relay R2 'remains on its right hand contact whilevthe tongue of relay R4 returns 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.`

The de-energizing of the stop magnet 85 also releases the ticker transmitter shaft. allowing the brushes to revolve over the selector heads until they reach the line of segments Vcorresponding to the next' character which has been set up inthe tape transmitter.

If the new characterthus set up in the tape transmitter is the same as the character which has just been printed, there will be a circuitV for this second character selection to the stop magnet through the same line of segments on the selector head.' This circuit is established for the second character, before the ti cker' transmitter brushes have left the segment' upon which they had stoppedfor the printing of the previous character. Hence when the locking ground is removedjrom the stop mitter shaft and allow the brushes to revolve until they reach the same character selection .when they will be stopped and the same character will be again printed.

As the tongue of relay R2 strikes its right hand contact, it completes a circuit from ground through tongue and back contact of relay R, tongue of relay R2` conductor 157, coil of relay R5, conductor 15B, front contact and tongue of relay R3, resistance 153 to positive battery. This energizes relay R5 and breaks the circuit of the stop magnet, thus releasing the shaft of the ticker transmitter and allowing the brushes to revolve until they reach the line of segments of the same character selection when they will vbe 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 o the relays as previously eX- plained. Although relay R5 receives impulses on all characters its operation 1s not required' except when characters are repeated.

An arrangement of controlrelays can be provided in place of relay R5 which will prevent the ticker transmitter shaft, and the tickers being worked from 'it from releasing when a character is to be repeated. This arrangement will cause the line 51 leading to the escapement magnet 34 and the pressmagnet in the tickers to be opened and closed asv many times as the character is to be repeated but does not changev the polarity on line 51, and therefore does not rotate the type- Wheel. 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 tiker transmitter .shaft and tickers are released and allowed to revolve only when a different character selection is set upA 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 char,-

acters is considered preferable.

The automatic stop switch is mounted on the base of the tape transmitter and is pro-- vided with amake and break Contact 150 havig an arm 160 in Contact withthe tape between the transmitter and the perforator. The tape .passes under the end of the arm and when it becomes taut between the perfo-A rator punch block and the transmitter pins,

. the arm is lifted byA thevtape/suiliciently to open the circuit at the Contact 150. The ticker transmitter will stop on the selected line .of segmentshclose the operating-contact 89 of the transmitter, and energize relays R1 and R2 and the tape transmitter magnet 110. The tape transmitter steps the tape ahead. and closes its operating contact OC on the spacing side but beyond this no action can'take place because the automatic stop switch is open. When more tape is perforated the switch is allowed to close and the other control relays operate in sequence as previously explained.

During a dull market when quotations are 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 perforator to the tape transmitter for immediate transmission. As the tape must not be broken, there will be about three groups of quotations. 'This blank tape must be stepped.: through the tape transmitter.in order to reach the next quotation but the ticker transmitter and tickers must not be operated whiley 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 ofthe holes are perforated and consequently all of the tape transmitter tongues t rest on their spacing contacts. The character designated as rub-out, which has all six holes perforated and hence all tape transmitter contacts marking, also operates through the same relay circuits as the tane-stepper l ReferringV to spacing contacts as for the tape stepper selection. The .spacing contacts of the left handB set are vconnected as shown to the two groups of tape stepper segments on the B selector head. Tracing through the selection circuit, it will be seen that there is a circuit from ground in the tapeftransmit- `ter through the contacts and segments.- and the brush C1 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 Figure 13, the tape transmitter tongues are shown resting against the y R2, conductor, 161,back contact and tongue of relay R3, to positvebattery. Tape Vstepper relay R8 is therefore energized but the ticker transmitter is not stopped'and no character is i printed.

Relay RG, when energized, locks itself in an operated position by applying a ground connection to its coil through its armature tongue and front contact. The side contact 162 of relay R*s is also closed by the armature and this closes a circuit to energize the tape transmitter magnet 110, from positive battery, side contacts 162, conductor 163, tongue and-back Contact of relay R4, 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 7 is moved against its right hand contact OC, which I have designated the operating contact, and this energizes relay R3', the circuit being fromv ground7 through the `seventh transmitter tongue, conductor 146, automatic cut-out 150,

conductor 151, relay R3, conductor 152, conductor 155, left hand coil of relay R2, conductor 135, conductor 163, side contacts 162 of relay R6 to positive battery. The breaking of the circuit through the back contact and tongue of relay R3 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 R3. All of the relays are thus returned to their Iunoperated 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 through the right hand or locking coil of relay R2 is not sullicient 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 R2 through the back contact and tongue of relay R. Thus even if relay R2 does operate on the tape stepper function, it cannot operate the ticker transmittenstop magnet as its grounds 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 tape is' stepped ahead. The tape stepper selection is thus set up momentarily each time that the tape is advanced between character selections. To prevent relay Rr from operating at this time. the circuit from the coil of relay R6 is brought through the back Contact and tongue of relay R1. Relay R1 operates for every printed character and therefore relay R cannot be energized while printing is taking place.

I claim 1. An automatic telegraph system, comprising a tape-controlled transmitting apparatus and a typewheel printing mechanism, said transmitting apparatus embodying a selecting device having cooperating movable and stationary contacts, means for selecting and positioning certain of said movable contacts simultaneously with relation to their cooperating stationary contacts in accordance with a code'combination determined by the permutations of the perforations in the tape, a segmented circuit controller having circuit connections to said 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 circ-uit passing serially through a plurality of said segments and rangement of perforations in the tape.

2. In an autom-atie telegraph system, a tape controlled transmitter including a motor-actuated circuit selector having relatively movable contact brushes and segments, and

vcomprising 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 in a 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 sa-id levers to control the movements of said contact members, a selector head havin segments electrically connected with said contacts, motor-actuated brushes arranged to travel over said segments and means for stopping the movement of r`said brushes when they close a circuit 'through certain of said segments and certain of said contacts predetermined by the selection of said tape-controlled members corresponding with the character perforations in the tape.

4. A telegraph transmitter as set forth in claim 3, said stopping means comprising a magnet arranged to be actuated through circuits including diferent groupings of said segments and contacts determined by the combinations of tape-controlled members.

5. In an automatic transmitting apparatus for telegraph ticker systems, the combination of tape-controlled contactmembers, a segmented circuit controller having circuit connections to said contact members, motoractuated brushes rotatable over the segments of said controller, an electro-magnetic device contacts predetermined by the selectedarfor each figure character and-one stop 1- tion for each letter character selected by the combination of perforations in the tape.

6. In an automatic transmitting apparatus as set forth in claim 5, means for advancing the tape through the transmitter without transmitting code impulses, said means responding to an imperforate tape section and also to a series of perforations equal to the combined letter positions and an additional perforation.

7. Inl an automatic telegraph system as set fortlr in claim 1, means controlled by a certain combination of perforations in the tape for causing the transmitting apparatus and the typewheel printing mechanism `to make several free revolutions without printing and stop at a definite point, then causing the printing mechanism to print a unison character and permitting the 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. p

. 9. A telegraph transmitter comprising a perforated tape, code selecting mechanism, embodying a contact-making device having a plurality of pairs of stationarycontacts, contact levers each movable between a pair of said contacts, means-for selecting and positioning 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 divided into the same number of radially arranged groups as there are combinations between said movable levers and said pairs of contacts, a plurality Yof brushes Irelatively rotatable with respect tothe segmented selector face plate, and electrical connections between said contact levers, said pairs of contacts, the segments of said face plate and said brushes, such that yfor any one combination of contact levers a complete electrical circuit is obtained at only one of said radial groups of segments.

10. A telegraph transmitter, 'comprising a plurality of pivoted levers each carrying a contact member, a series ofl 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 combinatibn with printing apparatus provided with figure and letter characters and operatively connected to respond to impulses initiated by said transmitter, means associated with the printer for determining whether a figure or a letter shall be rinted, said means being controlled by one o said members, which member is controlled by the presence or absence ofan auxiliary perforation in the tape.

l1. In an automatic telegraph system, a 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 lselector mechanism having segmented rings, electrical connections associated with said rings, and brushes engaging said rings and'movable relatively thereto to eifect 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 pre-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 being eil'ected at regular or irregular intervals.

13. A telegraph transmitter as set forth in claim 3, and a plurality of auxiliary relays ing mechanism having a normal 'and a case shift position, a selecting mechanism controlling said printing mechanism, a distributor having a plurality of contacts operating to setl up code combinations for controlling said selecting mechanism, a case shift mech-4 anism, and means controlled by one of said distributor contacts for establishing an extra case control condition with each of said code combinations for controlling said case shift 1 mechanism. c

16. In a combination a printing mechanism; a selecting mechanism controlling said printing mechanism; a distributor having a plurality of contacts controlling said selecting mechanism; a case shift mechanism; an operating magnet for said "case shift mechanism; and one of said distributor contacts controlling said magnet independently ot' said selecting mechanism.

17. In combination, a printing mechanism having a normal and a shift position, means responsive to code combinations of conditions for controlling the operation of said printing mechanism and electro-magnetic means 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 add-ed 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 su'cceeding code combinations While no change in the shift position isA 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 case printingpositions, and responsive to said extra conditions for selecting the character case from which A.printing is to be effected.

20. Ina 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 ofI 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 selecting the 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 a plurality of characters, means controlled by said transmitter for generating code combinations of conditions to simultaneously select a character in each of said groups, and meanscontrolled by said transmitter for generating a conditionadded to each code combination for selecting one of said groups whereby a selected character in the selected group is printed.

22. In a printing telegraph system, a transmitter, a receiver comprising a plurality of 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 controlledby 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 is printed.

23. In a printing telegraph system comprising a transmitter adapted to transmit code combinations of selecting conditions together with a case selecting condition added to each code combination, and a receiver having a figure and' letter printing case; the

'method of operation which comprises selecting a figure and a lettercase character inl accordance with each code combination, and

selecting the case from Which printing is to be eiiiected in accordance with the corresponding case selecting condition.

24. In a permutation code printing tele-` E;

graph 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 selecting condition to select the case from which printing is to be effected.

25.'In a printing telegraph system, a receiver comprising a tape having offset ligure and letter case printing positions; printy ing mechanism for said figure case position, printing mechanism for said letter case position, a transmitter for generating character selecting code combination ofconditions to select simultaneously acharacter to be printed in each case pos1tion; and means including said transmitter for generating a case selecting condition added to each character sepulses to position the typewheel at the rel spective desired characters.

27. A printing telegraph system comprising transmitting apparatus controlled by a permutation code perforated tape and receiving printers of the step-by-step type controlled by said transmitting apparatus.

28. In a printing telegraph receiver, a`

typewheel rotatable step-by-step underthe control of line impulses and means controlling the transmission of the line impulses under the control of permutation code character combinations. i

29. In a printing telegraph system, areceiving printer having a rotatable. typewheel, an escapement device having an actuating magnet energized by line impulses to cause the t-ypewheel to rotate step-by-step in unison.

With the line impulses, transmission appamutation code type o ratus including an impulse generator and a permutation code type of transmitter co-acting with said generator to control the number of impulses transmitted to the printer.

30. An automatic telegraph transmission system for step-by-.step printers, comprising in combination, an impulse generator, a pertransmitter co-acting with said generator to cause it to stop in the position corresponding to the character to be printed, means to arrest the impulse generator for a definite interval sufficient to cause a character on the printer to be rinted and the next succeeding character se ection to be set up in the code transmitter, and means to release the impulse generator to permit the rotation of the printers to thenext character position.

31. In an automatic telegraph system as de'- fined in claim 30, if the next succeeding character is the same as the last one, means for preparing said succeeding character selection 1n the permutation code transmitter but `then causing the impulse generator to remain vstationary thereby preventing movement lof the printer typewheels, and means to causea -repeat operation of the printing function in the printers while the t-ypewheels are' held stationary.

32. In an automatic telegraph system for step-by-step printers which require free running to bring all of the printers to a given unison point, an impulse generator to supply the-lineimpulses to operate said printers and means for permitting said enerator to send a predetermined number o line impulses to the printers and thenautomatically causing saidprinters to proceed upon the next printing cycle of operations.

33. In an automatic telegraph system for step-by-step printers which require free running to bring all of the printers to a given unison point, an impulse generator to supply the line impulses to operate said printers,

' a permutation code transmitter controlling the operation of said impulse generator and means forv permittin said generator to send a predetermined numer of line impulsesto the printers and then automatically causing 36. A tape printer comprising a selecting mechanism, printing mechanism controlled by said selecting mechanism including'a. twopart typewheel having a letters character periphery and a figures character periphery, a platen coacting with said type Wheel to effect printing ofv either` set of characters, Y and means controlled by said selecting mechanism for shifting the platen under either periphery.

In witness whereof, I have hereunto set my hand Vthis 3rd day of November, 1930. EVAN R. WHEELER.

said printers to proceed upon-the next printing cycle of operations.

v34:. In an automatic telegraph system embodying step-by-step receiving printers, an impulse generator to supply line impulses to said printers, a transmitterof the permutation code type controlled from a manual code selector and controlling the operation of said impulse generator, and automatic means operating to stop said transmitter and said Vgenerator when the transmitter has transmitted all of the manually prepared code characters and until a rfurther supply of prepared characters is'furnished to the transmitter.

35. A tape printer comprising a selecting

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