Patent GB-344496-A (GB)
Abstract: 344,496. Totalizators. AUTOMATIC TELEPHONE MANUFACTURING CO., Ltd., Strowger Works, RICE, T. G., 59, Tweed Street, Fairfield, both in Liverpool, and SIMPSON, L. M., The Bungalow, Laurel Bank, Stanks, near Leeds. Dec. 4, 1929, No. 37221. [Class 106 (i).] In an electric totalizator, discrimination between win and place bets is effected over the same leads by employing current impulses of different strengths. The counters consist of chains of relays. Entering the bet. Fig. 1 shows the keyboard &c. arrangement designed for forty runners. To enter a bet the win-place key WP is thrown over, lighting the corresponding lamp and preparing a circuit through the selected horse key the number of which is similarly indicated. If the setting is incorrect a cancel key may be operated to unlock the depressed keys. If correct, an issuing key ISK may now be operated to complete a circuit from earth, through a contact MCC closed by any of the horse keys and either direct (for a win) or through a resistance 12 (for a place) to the issuing key and the horse key and thence by a line 11 to relays Wl and P1, Fig. 2, in parallel. If the bet is for a win the relay W1 will operate before the slow relay P1 and break the circuit of the latter at wi2. If the bet is for a place the diminished current in the line 11 will be insufficient to operate relay WI and relay PI will therefore respond and cause the bet to be registered on the place counters. Counting arrangements. Assuming the bet to be for a win and on horse No. 1, the energization of relay WI closes at wi1 a circuit through resting relay contacts e2, d4, c4, b6 and a4 to a relay AB and a common battery feed relay BF (subsequently replaced at a5, by a resistance feed 17). The latter locks up at b#1 through a lead 14 and contact ti1, Fig. 3, at the total counter, and a further contact bf2 closes circuit for a relay Tl to break the lead 14. The relay Tl functions similarly to relay W1 to operate the total counting relay system and relay BFF, being thus energized, causes an impulse, through b##1, to traverse line 16 to relay R, Fig. 1, which then closes circuit to the motor ISM to perform the ticketissuing operation. With the mechanical restoration of the keys the relay WI releases but relays AB and A (energized through contact ab1) remain locked up through the contacts co2, b4 and abl, and contact al maintains an earth circuit from the betting control key BST through line 10 to the indicator lamp No. 1. If another bet is entered relay WI operates again, and consequently through operated contact. a4 relays B and BB become energized and therefore relays A and AB are unlocked and the indicating circuit from line 10 is switched to No. 2 lamp. Five such pairs of relays are used in this sequential manner and for values above 5 the relays are operated in combination. Thus for number 6, relays A and E are energized and for number 9, the three relays C, D and E. Transfer arrangements. When the indicator stands at nine, that is, with relays C, D and E energized, and another impulse arrives, the earth circuit from contact wi1 is extended again to relay AB and also, in parallel, through contact d3 to the counting system in the next higher denomination. When, in response to the registration, the ticket has been issued and the relay WI de-energized therefore, relay A is operated and locked as also is the corresponding relay (or combination of relays) in the higher order. The circuit to No. 9 lamp in the units is now deflected at a3 to the cut-off relay CO which then functions and locks up through the operated contacts ab2, cb2, db2 and eb2. The contacts co2 .. co5 now break the holding circuits of all the counting relays which thereupon release and cause lamp No. O to light up. To prevent unnecessary zeros appearing in denominations other than units, the lamp circuits of each of these denominations are controlled by a relay such as LC (for the tens denomination) which is energized and locks up only when the first counting impulse arrives at that denomination, the relay then operating to connect earth at lc3 to the lead 18 to the tens lamps. Specifications 331,500, [Class 106 (i), Calculating &c.], and 344,347 are referred to.