US2121164A - Totalizing system - Google Patents

Description

June 2 1, 1938.

H.- c. hoBmsoN TOTALIZiNG SYSTEM Filed July 1'3. 1954 l4 Sheets-Sheet 1 wmIPEsm mohuwJJQu U. 25 mmIho 0h 1856 $55 60 EEJEE Z; 9 lllol-U.

I INVENTOR HAROLD c. ROBINSON June 21, 1938. H. CJROBINSON 2,121,164

FIG. 2

SO-Tl M lOO-T I M INVENTOR HAROLD C. ROBINSON ATTY.

June 21, 1938.' H. c. ROBINSON 2,121,164

TOTALIZING SIYSTEM Filed July 13, 1934 14 Sheets-Sheet 3 INVENTOR HAROLD c. ROBINSON June 21,1938. I H. c. RQBmON 2,121,164

' I TOTA'LIZING SYSTEM Filed July 13, 1954 14 Sheets-Sheet 4 m 2 at 5 INVENTOR. r

" HAROLD C. ROBINSON June 21, 1938. H. c. ROBINSON TOTALIZING SYSTEM Filed July 15, 1954 14 Sheets-Sheet s mvm mmm INVENTOR HAROLD C. RQBI NSON 7 June; 21, 1938. H. c. ROBINSON TOTALIZING SYSTEM Filed July 15, 1934 14 Sheets-Sheet 6 omw INVENTOR HAROLD c. ROBINSON H. C. ROBINSON TOTALIZING SYSTEM June 21, 1938.

14 Sheets-Sheet 7 Filed July 15, 1954 INVENTOR HAROLD C. ROBINSON ATTY.

June 21, 1938. 1-1. c. ROBINSON TOTALIZING SYSTEM Filed July" 15, 1934 14 Sheets-Sheet 8 INVENTOR HAROLD c. ROBINSON mom /Z I ATTY.

14 Shets-Sheet 9 June 21, 1938. H. c. ROBINSON TOTALIZING SYSTEM' -Fi1ed'July 15', 1954 o m m h w m Q m N INVENTOR HAROLD C ROBINSON Gag June 21, 1938. H, c. ROBINSON I ZJLII TOTALI ZING SYSTEM Filed July 13, 19s4 114 Sheets-Sheet 11 l I I I FIG. l3

ADDING MACHINES TICKET ISSUING MACHINES INDICATORS 9 #I 436785 WIN N 'I COMBINATION PLACE N9 I CONTROL BOARD PLACE N9 5 PLACE N9I2 SHOW N9] FIG. :4 FIG. n5 INVENTOR, FIG.I FIGIZ FIG.3 FIG.I FIGQ FIGJZ FIG? c H54 H65 nae FIGA F165 F166 AT'TY FIG] F168 FIGS FIG] FIGfi FIG.9

June 2?, 1938.

. H. c; ROBINSON TOTALIZING SYSTEM Filed July 15, 1954 1.4 Sheets-Sheet 12 FIG. l6

SHOW

INVENTOR HAROLD C. ROBINSON SHO PLACE WIN ,June 21,1938. H. C; ROBINSON 2,121,164

TOTALIZING SYSTEM Filed July 15, 1934 14 Sheets-Sheet 1 3 INVENTOR HAROLD C. ROBINSON June 21, 1938. H. c. ROBINSON TOTALIZ'ING SYSTEM Filed July 15, 1934 14 sheets-sheet 14 E omw INVENTOR HAROLD c. ROBINSON ATTY- Patented June 21, 1938 UNITED STATES 2,121,164 TOTALIZIING SYSTEM Harold 0. Robinson, Chicago,- 1n., assignor to Associated Electric Laboratories, Inc., Chicago, 111., a corporation oi Delaware Application July 13, 1934, Serial No. 734,940

14 Claims.

The present invention relates in general to totalizing systems, but is particularly concerned with the provision of a totalizing system wherein ,a large number of ticket issuing machines are employed in the sale of tickets of diiierent values, for a number of events, and for different classes of such events; and wherein the total amount of sales for each class of the event as well as the separate sale of tickets for each event are peri- 1o odically indicated during the sale of such tickets, and wherein when the sale of tickets is discontinued, an indication is given of the final total value of ticket sales for each event and the total amount in sales of each of the classes of such events.

One of the many objects of the invention, is to provide a system wherein the likelihood or chance of inaccuracy is very remote.

Another object is to provide a system which is made up entirely of relays and other apparatus of long proven qualities of endurance and dependability.

A still further object is to provide a system of which will appear from time to time as the de-' scription of the invention progresses.

'll'he invention is disclosed in fourteen sheets of drawings comprising Figs. 1 to 18, inclusive,-

Fig. 2 shows the relay collector switch for connecting the leads of the various ticket-issuingmachines to the register.

Fig. 3 shows the essential parts of one ticketis'suing machine.

Fig. 4 shows certain keys andrelays of the supervisory control equipment.

adding machine.

Fig. 5 shows the units registering relays of the Fig. 6 shows the hundreds registering relays of the adding machine.

Fig. '7 shows further relays of the supervisory control equipment.

Fig. 8 shows the switches of the adding machine cooperating with the register relays of Figures 5 and 6 to register the hundreds, thousands, etc.

Fig. 9 shows the relays for controlling the indidating equipment.

Fig. 10 shows a code chart indicating which of the relays of Figure 9 are operated to register a particular digit.

Fig. 11 shows one bank or frame of lamps for displaying a digit.

Fig. 12 shows the circuits for connecting a combination ticket-issuing machine to the colleeting means.

Fig. 13 is a schematic layout of the various machines in the system.

Figs. 14 and 15 show the arrangement of the various sheets of drawings.

Figs. 16, 17, and 18 show a distinct arrangement for checking the circuits of the adding machines of the system. The first nine sheets of drawings should be first arranged as indicated in the layout Fig. 14. Figs.- 1, 4 and 7 of these sheets disclose control and supervisory equipment which, for the most part, is common to theentlre calculating system, and which employs ordinary and well known forms of relays.

Fig. 3 diagrammatically shows only the parts of a ticket issuing machine necessary to describe the invention. This ticket-issuing machine is arranged to deliver a ticket for any of twelve events, depending on which of twelve keys is actuated, and with a test key T. In the entire system there are four groups of these ticketissuing machines. In one group the tickets issued are labeled Win, designating the one class of the twelve events for which the ticket-issuing machines of this group may issue tickets. The second group is like the first except that the tickets employed are labeled Place. The third group is also like the first and second, but the tickets employed are labeled Show. The fourth group of ticket-issuing machines may be labeled Combination or in some other manner to designate that they have characteristics in common with the tickets issued by the ticket-issuing machines of the first three groups or of at least two of 'the first three groups.

Each ticket-issuing machine of the first group a. has control conductors extending to twelve difclosed in Fig. 9.

ferent collecting switch and adding machine units individual to the twelve events of the class for which such ticket-issuing machine issues tickets, and they each also, have a thirteenth conductor extending to a thirteenth collector switch and adding machine employed to collect and totalize the amount in ticket sales of its particular class of the twelve events.

In like manner, each of the ticket-issuing machines of the second and third groups has control conductors extending to twelve other different collector switches and adding machines individual to their class of the twelve events for which they issue tickets and a thirteenth conductor extending to a collector switch and adding machine employed to totalize all ticket sales of their respective classes of the twelve events.

Each of the ticket issuing machines .of the fourth or Combination group have control conductors extending to each of the thirteen collector switches and adding machines of each of the other three groups so that when a ticket is issued by the ticket issuing machine of the fourth group one of the twelve adding machines of each class of events will be modified by it as well as the totalizing adding machine of each class of events. It will be obvious that the particular event and therefore the'particular adding machine of the three respective classes influenced will depend on.

the key of the combination ticket issuing machine which is actuated. For example, the actuation of the No. 6 key of a ticket issuing machine of the fourth group will ordinarily be the equivalent of the actuation of the No. 6 key of a ticket issuing,

,a fourth group of collector switches and adding machines requires the introduction of additional circuits between it and the collecting switches of these groups. Such circuits are shown in Fig. 12.

Since, asv previously brought out, tickets are issued to twelve different events and to three classes of such events, there will be required thirty-six collecting switches and adding machines for the proper registration individually of these events and their respective classes. Three addi tional adding machines will also be required to totalize the sales of the three respective classes, making a grand total of thirty-nine collector switches and associated adding machines in the whole system. These collector switches and adding machines are all identical to each other and for this reason it will only be necessary to disclose one of them. Fig. 2 comprises one of the thirty-nine collector switch portions C8 of the system,.and is the one which is individual to an adding machine, disclosed in Figs. 5, 6, and 8,'and to indicating equipment some of which is dis- The collector switch CS as shown, comprises twenty-six relays. Relays 206 to 208 of these have not been shown since they are identical to relays I05 and 209 of the chain. For like reasons relays III to 22!, inclusive, have not been shown since they are identical to relay 2!: of the chain. It will be observed from the bracketed conductors, however, that it is arranged to connect with a large group of ticket issuing machines designated 2'I'IM, a smaller group designated 5--TIM, and progressively smaller groups designated l-TIM, 50--'I'IM and l00-TIM, respectively. The group of ticket issuing machines served may be readily increased if necessary by merely increasing the number of relays in the chain.

Each of the thirty-nine adding machines empioyed and one of which is illustrated in Figs. 5, 6, and 8, comprises a group of units registering re- -lays UR, a group of tens registering relays TR,

three simple rotary switches H, T, and TH, comprising hundreds, thousands, and ten-thousand registering equipment. and a hundred-thousands registering relay, HT. The rotary switches here employed are of the well known type such as shown in U. S. Patent No. 1,693,027.

The indicating equipment for each adding machine comprises six frames of twenty-four lights each, one for each order such as units, tens, etc., controlled in various combinations by the respective portions of the adding machine to display the digits registered therein by the operations of the ticket issuing machines. Fig. 9 shows the relays and circuits for controlling one frame of twentyfour lamps for the units digit and which is merely duplicated for each of the other orders required. The numbers of the conductors extending to the bracket labelled To lamps designates to which lamps of the frame these conductors extend. Fig. 11 shows a typical frame of twenty-four lamps, such as employed, while Fig. 10 shows a code chart which enables one to readily determine which of the relays of Fig. 9 must be operated to light appropriate lamps in the frame to display any digit.

The calculating portion of the system is more clearly visualized as a whole by the schematic layout disclosed by Fig. 13. 'I'hisschematic layout shows the first, sixth and twelfth event adding machines of the three classes; and their respective totalizing machines designated "Win",

- Place, and "Show", respectively. Each of the twelve adding machines, such as those designated W1n", as previously explained. is associated with a'diiferent one of the twelve keys of each of all of the ticket issuing machines of the group equipped to sell tickets designated Win. The rectangles under the label "Indicators" represent the indicators associated with the diagrammatically disclosed event adding and totalizing adding machines. I I

As previously stated, each of the ticket issuing machines may issue tickets to any of twelve events. When a sale to event No. 1 is made, for example, by a Win" ticket'issuing machine, the No. 1 Win adding machine will function to register the sale on the associated indicator of that adding machine. The adding machine designated "Wintotal" will also be operated and cause its associated indicator to register the sale of a ticket designated Win". Likewise if any "Win" ticket issuing machine issues a ticket for event No. 6 the No. 6 Win adding machine will function to register the sale on its associated indicator. At the same time, the adding machine designated Win total will also function to cause its associated indicator to indicatethe total of the "Win ticket sales. A few numerals have been applied to Fig. 13 whichcorrespond to the numerals applied to like lead lines in the other figures so as to show the relation of this layout to the detailed drawings. It should be understood, however, that many-of the lines shown in Fig. 13 represent a group of leads.

Rectangles are shown representing $2, and

' ing between the control board and each of the $10 ticket issuing machines under the headings "Wi n, "Place and Show, respectively. These machines differ only in that the printing on their tickets is in accordance with the class or group to which they belong.

One ticket issuing machine of the previously. mentioned group of Combinationticket issuing machines is also illustrated and is designated by a rectangle labeled Combination. As previously explained to some extent, when a ticket is issued by a machine of this character it causes one of the adding machines and the totalizing adding machine of the classes -Win., Place",. and "Show, to actuate and their indicators to indicate the sale on each of the indicators in accordance with the key actuated or event for which the ticket issuing machine issued a ticket.

Thecontrol and supervision of operation of the ticket issuing machines, the adding machines, and the indicating equipment is centralizedat a control board represented by a rectangle in Fig. 13, and designed Control board. The conductors extending from the control board to each of the respective ticket issuing machines are employed, as will subsequently be described, to lock and unlock the ticket issuing machines, as required to insure their operation only when such operation is authorized. The conductors extendadding machines and between the control board and the indicating equipment are for exercising various 'controlfunctions, as will be subsequently made clear. As previously stated, this equipment is disclosed in Figs. 1, 4 and '7, to which attenmachine of any of the three classesfrom preventthree classes of events.

ing the proper operation of the adding machines of their associated class as will be described subswitch PL will be left open.

When the system is to be put into operation the switches WI, PL, and SH, are all usually closed and current is supplied to the system" from any appropriate D. C. source herein shown as a battery B in Fig. 1, having, one side grounded and supplying the current thereof through an approprlate fuse and main switch SW. The closure of this switch causes the immediate operation of relays 465,448, 15i, and I36, respectively.

The relay Ii is operated over a circuit extending from ground supplied through the armature lit and resting contact of relay H0, contacts I29, conductor M5, and the winding of relay 5 to negative battery. The relay 5, at contacts 6 opens a point in the operating circuit of relay M0 and at its contacts 'I closes a point in the operating circuit of the relay 2M of the collector switch CS.

The relays B and "I are operated; over a common circuit which extends from negative battery. through the windings of these relays in multiple, conductor 4I6 and through the conizing machine.

tacts 104 of relay IIII to ground. The relay 8, at its contacts 450 closes a point in a circuit employed to supply ground potential to all ticket issuing machines as will be described later, and at its contacts 9 applies ground potential to conductor I05 extending direct to the winding of relay I30 and negative battery.- The relay I" accordingly energizes and at its contacts closes a point in the operating circuit of the collector and at its contacts 455 applies'ground potential to the conductors 404 and 403' and through the winding of relay "I to battery. The operation of this relay and the circuits,controlled by it will be gone into later.

The relay 136 is operated over an obvious circuit and at its contacts I31 applies ground to conductor I01 and through the winding of relay I20 to-negative battery. This latter relay accordingly operates and at its contacts I3I applies ground potential to a locking conductor IUI extending to the locking armatures of all indicator relays such as A to E of Fig. 9 of the sets! of such relays. employed to control indicators of the Win adding machines and the Win tota l- Two other relays like the relay I20, but not shown, are also tied to conductor I01 and operate to apply ground potential to the locking leads of the indicator relays of the Place and Show" adding machines and of their respective totalizing adding machines. The relay I36 'also, at contacts 138 opens a point in the operating circuit of relay I30 and at contacts 139 closes a point in the operating circuit of relay H16. 7

The relay 226 of the collector switch CS and a corresponding relay of each of the other collector switches of the system not shown, are operated over obvious circuits like the one shown for relay 226, which includes the chain. of serially connected contacts of the other twenty-five relays of the collector switch CS. The relay 22%, at its contacts 2M opens a point in the locking circuit of relay 225. at its contacts 2W opens a point in the operating circuit of this latter relay, and at its contacts 213 completesthe operating circuit of relay 2M of the collector switch. This circuit extends from ground supplied through the contacts Ml of relay Mb, the right blade of switch WI, conductor IM, contacts lit, conductor Mt, contacts 21$, and through the winding of relay 2M to negative battery. The relay 2M operates'to associate the conductors 28!, 282, 2&3 and .244 with its associated adding machine, at its contacts 2' and 212 closes points in control circuits which will be described later, at its armature 2T8 interrupts the circuit of relay 226 and completes a locking circuit for itself, and-at contacts 2171 completes the opcrating circuit of relay 202 of switch CS. This latter circuit extends from negative battery through the winding of relay 202 and the contacts [IL-conductor 241, through contacts I2I of relay I10, contacts H6 closed by relay I38,

all

conductor 502, contacts 5004, conductor 5028 and contacts 521 and 531 to ground. The relay 226, upon restoring. at contacts 213 interrupts the circuit of relay 201, at its contacts 214 prepares a circuit for relay 225, and at its contacts 215 closes a point inthe operating circuit of relay 225. It will be appreciated that so long as conductor 241 has ground potential thereon the relays 201, 202, 203, etc. will operate in rapid sequence each interrupting the prior operated one until the relay, 226 is again actuated thereby. When this occurs the relay 226 at its contacts 213, again closes the circuit of relay 201 and therefore these relays rapidly operate in the order of a rotary switch tosequentially connect with marked conductors of the various ticket issuing machines of a particular class as will subsequently be more thoroughly gone into.

The attendant at the control board desiring to prepare the circuits for the actual selling of tickets does so by momentarily operating the'key PF'B and thereafter operates the ticket issuing machine release key TR. The key PFB at contacts 422 closes an obvious circuit for the relay 426 and at its contacts 423 applies ground potential out over conductor 411 to the slow to opcrate relay 126. The relay 426 at contacts 421 completes a locking circuit for itself including the normal contact and spring 418 of the ticket issuing machine release key TR, at contacts 428 opens a point in a control circuit ordinarily under the influence of a stewards key SK, and at contacts 458 interrupts the operating circuit of timing dash-pot relay 452.

The relay 126 at its contacts 128 completes a locking circuit for itself extending over the conductor 402 and through the normal contact and spring 418 to ground at key TR, at its contact 129 interrupts the normally closed circuit of relay 445, and at contact 121 closes an obvious operating circuit to slow to operate relay 123. The relay 445 restores and at its contacts 446 applies ground potential to conductor in multiple with that already applied thereto by the contacts 449 of relay 448 and at contacts 441 removes ground potential from the circuit of the collector relay 226, thereby stopping its operation as soon as relay 225 thereof pulls up.

The relay 123 operates and at contacts interrupts one point in the operating circuit of relay 442, and at its contacts 124 connects conductors 409 and 148 together independent of the normally closed contacts of relay 110.

When the attendant subsequently operates the ticket issuing machine release key TR the relay 425 is operated over an obvious circuit and at its contacts supplies ground potential out over conductor 345 extending direct to the ticket issuing machine, through the magnet 335 thereof, and through the lower winding of the magnet 340 to battery. The magnet 340 upon operating shifts its core 341 clear of the slot in the locking bar 301 of the ticket issuing machine freeing it for operation by the ticket salesman. Branches of the conductor 345 also extend to corresponding equipment of all other ticket issuing machines of the system. The ticket salesman may now proceed in the sale of tickets. The ticket issuing machine release key TR at its spring 418 I removes ground potential from conductor 402 thereby interrupting the locking circuit of relay -128. -This relay accordingly restores, and at its again closes its contacts 441, thereby completing the previously traced operating circuit for the collector switch which immediately starts operating. The relay 123 restores but without any particular effect at this time. The key TR at its spring 418 and its working contact completes an obvious circuit for the relay 430. This relay operates and at its contacts 431 completes an obvious locking circuit for itself. The relay 430 also at its contacts 433 interrupts the circuit of the lamp LL which becomes extinguished and indicates that the ticket issuing machines are no longer locked up; and at its contacts 432 connects ground potential to conductor 456, included in the pick-up circuit of all relays such as 335a of the ticket issuing machine TIM, and to the lamp RL which lights up to definitely indicate to the attendant that the ticket issuing machines have been released for operation. The key TR at its spring 419 and its resting contact interrupts the locking circuit of relay 426 which accordingly restores and at its contacts 428 again closes a point in the control circuit extending to the key SK. The relay 426 also at itscontacts 458 completes the operating circuit extending over conductor 424 to the timing dashpot relay 452. The restoration of the key TR is without effect.

A predetermined time after the closure of contacts 458 the dash-pot relay 452 operates and at its contacts 455 applies ground potential to conductor 404, and at its contacts 459 completes the circuit of dash-pot relay 453. This latter relay after a predetermined interval of timeat its contacts interrupts the circuit of dash-pot relay 452 which accordingly restores and again opens the circuit of relay 453 and again removes ground from conductor 404. It will be obvious that these relays operate intermittently so long as relay 451 remains operated and relay 426 remains restored. Each time ground is applied to conductor 404 the relay 101 is operated by the extension of this ground over conductor 403, and through the winding of relay 101 to battery.

The relay 101 operates and, at its contacts 102 completes an obvious circuit for itself including the armature and grounded resting contact 138 of relay 116. The relay 101, also at contacts 104 interrupts the circuit of relays 448 and 451 and at contacts 103 interrupts a point in the operating circuit of relay 110. The relay 448, upon restoring, at its contacts 450 disconnects ground from conductors 456 to prevent any ticket issuing machine from operating its relay 325 at this time and from the lamp RL causing it to become extinguished, and at contacts 449 removes the remaining one of the two ground multiple connections from conductor 105, thereby causing the relay 130 to restore and stop the operation of the associated collector switches, to momentarily prevent the adding machine from attempting to record ticket sales. The relay 451 restores, and at its contacts interrupts the circuit to the timing dash-pot relay 452 to stop its operation until an indication is given of the ticket sales which may have been made and registered up to this time. The relay 101, in operating, also, at its contacts 106 completes an operating circuit for slow to operate relay 140. This circuit extends from negative battery through the winding of relay 140, conductor 143, contacts 106, and contacts controlled by armature of relay 130 to ground.

The relay 140, uponoperating, at its contacts 142 completes an obvious locking circuit for itself excluding contacts I00 of relay IOI. at its armature I4I interrupts the normally-closed; operating circuit of relay I36 and-completes an obvi-' ous operating circuit to the relay I30 assoonas' relayI30 restores. The relay I36 also, upon restoring at contacts 131 removes ground from conductor I0I extendingto-the windingof relay I20 and battery, and at-Iits contacts I33 opens a point in the operating circuit of relay H0. The relay I20 restores, and at its contacts removes ground potential from'the indicator locking con ductor IOI and similar conductors extending to the locking armatures of relays A, B,-C,1D, and.

E, of the indicating equipment of theassociated adding machine, and from conductors extending 'from other contacts of the relay I 20 tothe indicating equipment relays such'as A to E of other adding machines of'the Win" group and from the totalizing machine serving the other events of the Win group. This is done so'that the existing or last set up sales'indication is erased in preparation for the display of up to date-in-- formation as to the amount in ticket sales which have been made.

-The relay I30, upon operating, at itscontacts I35 interrupts the locking circuit of relay I40,

The relay I20, upon operating, at its contacts I2I extends the ground potential on conductor I48 to the winding of relay' H5 and battery, and at its contact I22 applies ground potential to conductor 4II to the Win indicating control relays 823 and 600, respectively, and to other indicating relays corresponding to these of all Win event adding machines and the totalizing adding machinesbelonging to the "Win" class.

The operating circuit to the relays 023 and 600 of the adding machine shown may be. traced as follows: from ground applied to conductor 4" through the center blade of knife switch WI, conductor I04, contacts I14, conductor I08, to the junction of conductors 52I and GIG, respectively. The ground potential applied to conductor SIB extends directly to'the winding of relay 023 to battery. while the ground potential applied to conductor 52I extends directly to the'relay 600 and battery. These relays and the corresponding other relays, operated over branch circuits including contacts ofother relays such'as I60 not shown, accordingly energize to apply operating potential to the proper indicator control relays such as A to E of the various indicators to cause them to display digits in accordance with the amount of ticket sales which have been registered up to this time.

The relay I40, upon restoring, again-completes the circuit of relay I36, the relay I36 accordingly again operates, again closes. its contacts 131 so that relay I20 will again operate to ground the locking conductors IOI and similar ones extending to the indicator relays such as A to E, to

maintain the newly displayed indications independent of relay I20. The relay I36 at this time at its contacts I39 completes an operating circuit for relay H0. This circuit extends from the grounded conductor I40, through contacts I2I, contacts of relay H5, contacts 139, andthe windings of relay Hi to negative battery. The relay at its contact "I33 opens the locking circuit of relay IOI'.

The relay I20, upon restoring, again inter rupts the circuits extending to the relays 600 and 023 and to the other corresponding relays oi the system, and at its contacts 'I2I opens the circuit'sfoi relays I I5 and! I6 which restore without any immediate consequences.

upon restoring, at contacts I04 reestablishes the circuit of relays 440 and I, and at its contacts The relay 'IOI,

I05 interrupts the locking circuit of relay I30.

Relay 448, upon operating again, at its contact ,449 recloses the circuit of relay I30, and at its contacts. 450 again applies ground potential to the lamp LL and to the pick-up circuits extending to the relays, such as 325, of the ticketma- .chines. The relay I30 now operates to reestablish the operating circuits of the collector switches to enable them to again proceed to pick up marking potential on the conductors extending tothe ticket issuing machines. The relay 45I operates to again close the circuit of timing dash-pot relay 452. After a predetermined interval the dash-pot relay 452 again b'ecomes effective to initiate the operations just described 'toeffect the erasure of the indications last locked in on the indicators and to replace such indications with up to date information as to the value of tickets sold.

lf for any reason the steward desires to obtain an up to the instant indication of the ticket sales registered without waiting for the timing relay I0 upon operating, at armature H0 interrupts the circuit of relay I20, at its contacts H8 opens a point in the locking circuit of relay H0, and

452 to complete the circuit of indication control cycle-relay I 0I he may obtain the operation of such relay by momentarily operating the indication cycle key IC. Obviously the results are the same as when relay 452 actuates.

$2 Ticket sales the right against the tension of their associated springs 35I and 350, respectively. With the key fully depressed its triangle portion IGI becomes looked under the portion 302 of the locking oar 30I and the OE normal bar 303 remains moved to the right sufliclently to close theofi normal contacts 308. The locking. bar 30I in moving to the right moves with it a spring member 309 which in turn rotates the arms 3I2', 323 and 3I3 in a clockwise direction sufflclently to fully actuate the contacts 32I and 324. The distance of rotation of the arm 3! through the medium of its arm 3I2 and spring 309 is, however, limited detent in the cam 3I3.

Upon the operation of the contacts 324 a circult is completed for the relays 33511. This -circult extends from negative battery through the by the roller 3| 9 on arm 323, which enters a lower winding of relay 335a, conductor 333, contacts 324, conductor 3", conductor I32, the left his e of switch WI, conductorllt, contacts 432 an 430 to ground. The relay'33la, upon operating, at contacts 333 completes a locking circuit for itself including its upper winding, conductor 3, contacts 32l, conductor 333 now grounded by the operated of! normal contacts 333. The relay 3350 also at contacts 351 applies marking potential. to the conductor; 343 over a circuit extending from ground on co'nductor 333,

through the lower winding of relay 325, contacts controlled by the armature 321 of this relay, contacts 351, and the contacts-308 of key No. 1 of the ticket issuing machine. The ground potential applied to the conductor 343 over the traced circuit is connected with the lead terminating in the front contact of armature 223 of the relay 223 of the collector switch CS.

Owing to the previously described operating circuit of the collector switch C8 the relay 225 upon its next operation will extend the ground potential on conductor 343 through the front contact and armature 223 to conductor 263 and over the conductor 263 to the winding of the relay 323 of the unit register relay group of the adding machine to battery. The' resistance of the lower winding of relay 325 is very low compared to that of relay 525 and the latter relay therefore does not permit sufficient current flow in the traced circuit to enable relay 323 to operate. The relay 525, however, operates and at its contacts 521 interrupts the traced operating circuit of the collector switch CS, and at its contacts 526 completes an operating circuit through its slave relay 535. This latter circuit extends through the grounded contacts 53L contacts 526, 535, 5038, the armature 565 and its resting contact, and resting contact and armature 555, through contacts 538 and the associated resistance in multiple, and the winding of relay 535 to battery.

The relay 535 operates over the traced circuit and at its contacts 538 removes the shunt from about the associated resistance 5029 so as to include the resistance in its locking circuit which it completes at its contacts ill, and" which circuit is the same as the one traced exceptthat it excludes contacts I, 5038, and armature's 555 and 585. It may be well to mention at this time that in order to make the relay 33! quick operating it is designed to draw quite an amount of current and that the low resistance is then introduced in the locking circuit of the relay to cut down this current flow to the amount required to hold the relay operated. This same arrangement is provided on other relays of thesystem', as will be obvious. The relay 333 also, at its contacts 2 applies ground potential to contacts 528,thereby preventing the operation of terrupts a point in the operating circuit of relay 535. The relay I35 also at its contacts 538 interrupts a point in the operating circuit of relay "3, at armature I43 and its front contact closes a point in an operating circuit for the relay 325,.

at its contacts 5 applies ground potential to an alarm conductor I03 and at its contacts I531 extends ground potential by way of the resting contact and armature 541, conductor till and contacts 382, to the upper winding of control relay I: by way of another branch of the conductor 5M and contacts controlled by armature 551 to the lower winding of control relay "I and battery; and also by way of contacts 513, 503, M3 to the winding of control relay "3 and battery.

The relay I33 finally, at its contacts I31, also extends ground potential by way of armature I33 and its resting contact,- contacts controlled by armature B003, armature I34 and its resting contact, armature I11 and its resting contact, contacts 333, contacts controlled by armature I13, and the winding of register relay 583 to battery.

The relay "3 operates over the traced circuit. at its armature 313 interrupts the traced operating circuit for itself, and completes a locking circuit for itself which extends by way of contacts 313, the resistance I I2, and hold conducto'r I33 and through the contacts 332 of relay 333 to ground. The relay 363 also, at its contacts I'll closes a point in the operating circuit of register relay 61!, at its contacts 612 closes another point issuing machine, and at contacts 313 and 314 applies ground potential to the conductors of the circuits employed in indicating the unit digit of the number representing the value of the tickets sold by the ticket issuing machines of the group to which the disclosed adding machine belongs. The control relay I is of the differential type and does not operate when ground potential is connected to both of its windings. The relay "3, however, operates and at its armature 331 completes a locking circuit from the grounded conductor 503 and over the previously traced circuit through its winding to battery. The relay 333, at its armature 5, opens a point in the traced operating circuit of relay I35 and prepares a point in an alternative operating circuit for this relay,

and at armature 554 opens a point in an operating circuit for relay 330 and closes a point in an alternate operating circuit of that relay. The relay 553 also, at its contacts 553 and I80 removes ground potential from conductors associated with the indicating equipment, the purpose of which will be gone into later, and at its armature Ill, interrupts one point in one operating circuit for the ticket issuing machine relay 325, and at the front contact of this armature completes another operating circuit of this relay. This circuit extends from the negative terminal of the battery, through the low resistance 3021, contacts 312 and 531, through the front contact and armature 558, armature I43 and its working contact, to conductor 233 and over the previously traced circuit to the relay 325 to ground.

In the ticket issuing machine, the relay 323 now operates, and at its armature 32'l disasso ciates itself from the adding machine and therefore interrupts the circuit of relay 525 and completes a locking circuit for itself extending from battery through its upper winding, itsv armature 321 and its working contact, its lower winding, conductor 333, and through contacts 303 to ground. Relay 325 also, at contacts 323 completes the circuit of the motor start magnet 3i! of the ticket issuing machine. This latter circuit extends from battery, through the winding of magnet 3I3,'conductor 343, contacts 323 and 3, and over the previously traced circuit to ground at contacts 333. The magnet 3H5, upon operating, moves the knife switch blade 3 l 8 into engagement with its contacts to complete the obvious operating circuit to the motor 3" of the ticket issuing machine and clears the roller 322 from the detent in the cam 3, which, with the cam 3| 3, is driven by the motor 3". As soon as the motor 3 moves the cams 3" and 3 a short distance the cam 3i3 engages the roller 3" and through the medium of the arm 3" rotates the arms 3i2 and 3" in a counterclockwise direction

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