Patent GB-477101-A (GB)
Abstract: 477,101. Totalizators. SIEMENS BROS. & CO., Ltd., BROOME, J. H., SOUTHAM, A. A., and WOOD, A. F. Aug. 14, 1936, No. 22434. Addition to 441,643, [Group XIX]. [Class 40(i)] [Also in Group XIX] In a system of the type described in the parent Specification in which the quotient or product of two quantities is produced by the difference or slun of the movements of two members in proportion to the logarithms of the quantities, a lining up switch is provided for each register and is adapted to be used with the several denominational parts of the register. The system is shown applied to an odds indicator for totalizators and comprises two drums 7, 8 the former of which is set in accordance with the competitor total and the latter with the grand total, the two drums being rotated in opposite directions to drive the planet wheels of a differential 9 which controls the position of an indicator band 10. An individual. grand total drum provided for each competitor is controlled by lining up switches which are common to a lining up switch associated with the grand total counter. The drums 7, 8 which are driven through electromagnetically operated clutches CC, TC, are provided with helical square threads the surfaces of which are provided with pins 13 spaced logarithmically. Associated with each drum is a spring set TSC which is impulsed by the pins 13 and is carried on a slider 15 adapted to be driven along a rod 16 by a pin 14 which runs in the groove on the drum. An electromagnet TRM is provided to effect release of the pin from the groove and allow the slider to take up a normal position against a stop 22 under the control of a spring 23. In operation as the grand total increases, the drum 8 is rotated and the slider 15 moves along the rod 16 and as the pins 13 pass the springs TSC impulses are transmitted to a lining up switch associated with the grand total counter. The drum 7 is operated in the reverse direction in a similar manner and the combined effect of the two drums operates the indicator band to indicate the prevailing odds. Operation of lining-up switches. Fig. 2 shows a primary lining-up switch for the grand total indicator and Fig. 3 the secondary lining- up switch for the grand totals and the lining-up switch for the competitor counter. The contacts GTC, Fig. 2, comprise " tens," " hundreds " &c. denominational groups of contacts D, C, M, TM associated with the grand total counters and contacts CC the similar groups associated with the competitor counter. The switch RS, Fig. 2, is the primary lining-up switch for grand totals and is controlled by test relays F, G in conjunction with the drive magnet DR. Relays XA .. WD are provided to transfer the switch RS from the lower denominational groups of the counter to higher groups. Arrangements also are made to indicate only increases in totals after a predetermined number of bets has been registered and this number may be altered as the total increases. Normally relays F, G, DR are energized, the relays F, G being pulled up over circuits including contacts in the denominational groups C, D. When bets in the " tens group D increase, battery potential is removed from the contact corresponding to the existing total and applied to later contacts successively, and relay F is released to initiate a hunting operation of the switch RS until the contact corresponding to the new total is found. At the point of transfer from the " tens to the " hundreds " counter, potential is removed from D9 and applied to D0, C1 causing release of both relays F, G and stepping of the switch RS until the new markings are found at contacts 10 of the banks rs1, rs2. The switch then continues to line up a step for each 10 bets registered under the control of relay F until a further transfer takes place when G also is released and the switch is positioned at the beginning of the second " hundreds " group. When the total registered reaches 240 the circuit is altered so as to effect operation of switch one step per 20 units registered. At this point the switch is in its 24th position and relay F is maintained operated by relay DE energized over D4. Marking of D5 by the next ten bets maintains DE, F operated but subsequently DE, F release and the switch steps to position 25. Similar operations of the two-stop relays KA ... HJ ensure stepping at each increase of 20 units up to a total of 700. Subsequently from 700 to 3400 the switch is operated at each increase of 100. From 700 to 1000, relay F is maintained over contacts 47, 48, 49 and relay G is released at each increase of 100. When switch moves into position 0 corresponding to a 1000 relays KA .. WD are pulled up and the bank contacts of switch RS are connected to contacts C, M instead of D, C. Progress to 3400 is then at the rate of one step per 100 under the control of relay F. Between 3400-10,000 the switch advances at the rate of 200 bets per step owing to the operation of the two-step relays KA .. HJ until when the switch arrives at position 47 a further increase to 1000 bets per step is effected. This is effected by relays XA, XB, XC which transfer the bank contacts of RS to the denominational contacts M, TM. Lining up of the switch then proceeds at this rate to 34,000 when under the control of the two-step relays the rate is again increased to 2000 until a total of 46,000 is reached. Operation of grand total secondary lining-up switch and competitor switch, Fig. 3. The circuits of the equipment shown in Fig. 1, are designated IND in Fig. 3 and switch TS constitutes the secondary switch which lines up with switch RS and switch CS is the line-up switch for the competitor total. Contacts SN1, SN2 are operated by the indicator band and are respectively closed and opened at an indication corresponding to the lowest odds. Similarly contacts SC are opened at maximum odds and contacts SB are opened when the indicator band moves clear of the associated scale. When the totalizator moves away from its rest position, relay SO releases to switch in the clutch magnet CC and operate magnets CRM, TRM to restore the sliders 15 of the drums 7, 8. The band is driven upwards and contacts SN1 pull up ST to bring the band to rest at the top of the scale 19 at the lowest odds and prepare the drive circuits of stepping magnets CSDM, TSDM. When the primary switch RS moves on, test relay D of the secondary switch falls back and switches in clutch TC to cause operation of the grand total drum 8. Impulses are then sent from the drum to operate switch TS, which is stepped until wiper ts1 is realigned with wiper rs4. When the range of stepping is altered by relays WA .. WD, XA, XB, XC relays E, TT, TV are operated to control the clutch TC and ensure that the drum 8 is always in a position corresponding to the number of bets registered. The arrangements for operating the competitor lining-up switch CS are similar to those provided for switch RS, test relays A, B controlling the operation in conjunction with relays VA VB VC, TA .. TD which effect the transfer of the banks of contacts to contact groups CC of higher denomination and also the alteration of the stepping rate. Restoration. When the whole of the totalizator is to be restored to normal, RSC, Fig. 2, is operated to pull up RSB which operates SO and releases ST, VA VB VC TA .. TD, and closes self drive circuits for switches CS, TS, RS. Clutch TC also is energized and release magnets TRM, CRM restore the impulse contacts to normal position. A key CRT is provided for correction purposes. This key effects restoration and allows further operation of the switches into their correct position. Specification 427,413, [Group XXIV], is referred to.