Patent GB-355680-A (GB)
Abstract: 355,680. Totalizators. AUTOMATIC TELEPHONE MANUFACTURING CO., Ltd., Strowger Works, and BELAS, F. T., 24, Stanley Street, Fairfield, both in Liverpool. May 21, 1930, No. 15667. [Class 106 (i).] In an electric totalizer a single bet-storing equipment responsive to the signals is provided for a number of transmitting stations and is automatically coupled with any of the stations when a bet is set up. The invention is described as applied to the system employing code signal lines, the single equipment being a decoder. Moreover, in the event of a fault arising in the decoder or in the lines extending from it a reserve decoder is automatically brought into use in substitution for the faulty one. Association of decoder with transmitting stations. Depression of a runner key applies earth at the contacts MCH, Fig. 1, to the start relay L which at l2 puts earth potential on line 10 commoned to all the ticket machines in the group. Relays WR, PR, Fig. 6, are thus energized, through the self-interrupter contacts wmm, pmm, to cause the win-and-place switch magnets WMM, PMM to step. The two banks WMF, PMF of the switches are wired to the machine by win-and-place lines 9, 9<1> respectively and when a wiper reaches a contact marked by the closing of contact l1 the drive is stopped by the resulting operation of relay KW, (or KP) and its contact kwl. The relay C in the line is not operated however until by the closing of contact kw2 sufficient current becomes available. The relay C thereupon energizes and at contact C1 locks up over line 11 or 11<1>, at c2 breaks the circuit of start relay L and at c5 .. c10 completes the code lines to the decoder and operates relay P, Fig. 2, which at p2 closes circuit to a relay SW and at p1 puts a second winding in parallel to allow the decoding relays A .. F to operate, and at their armatures a1 .. f1 cause the code-storing relays AP .. FP to energize and in turn at ap2 .. fp2 break the initial circuits to relays A .. F and P. The storing relays have their contacts arranged as usual in cascade to direct the earth potential now available at contact p2, Fig. 4, to the required horse-counting apparatus. The revertive signal when received from the latter then operates relay TR and in turn relay T1 (to break the holding circuits of the code relays) and also at tr2 applies earth to line 15 leading to the total counter. When the revertive signal from this is received by relay CR, contact cr1 closes circuit through relays Q and (over line 19) TP and the latter at tp3 releases relay C and at tp2 closes a locking circuit for itself and also allows relay R to operate. This results in operation of the latching magnet LM and, therefore, of the ticket-issuing machine and with the consequent opening of contacts MCH relays R, TP relapse. Relay Q on operating is held by contact 91 and at contact q3, Fig. 2, opens the initial circuits of the decoding relays to prevent premature operation from another ticket machine. Relay SW is now de-energized by contact q2 and this restores all other relays in the decoder to allow it to respond to another code signal. Non-runner arrangements. Leads from the decoder pertaining to non-runners are connected to a bar NRC, Fig. 7, so that when earth potential is sent at p2 and through relay TR and the decoding contacts it is transmitted to the bar and thence by line 16 to a relay NR, Fig. 4. By means of the contacts of this relay the various operative circuits in the decoder are broken and at nr2 a line 20 is closed to operate relay CL. At cl1 therefore a lamp circuit is completed to warn the operator and at cl3 the circuits of relays C, W are interrupted so as to disconnect the machine from the decoder. The operator now operates the key CAN to cancel the bet set up. Precautionary arrangements. (1) To indicate failure of the operating circuit of the finder switch, Fig. 6, one winding of a relay WP is in series with the driving magnet WMM. The other winding of the relay is wired, in parallel with a rectifier MRC, to a relay WQ. If continuous current or no current flows through the relay WP, relay WQ does not operate and through further relays WT, WS an alarm lamp WAL is put in circuit. (2) If a fault arises in the decoder such as dirty contacts on relays A .. F, storing relays AP . . FP or the checking relays AC .. FC, the want of agreement between the contacts ap1 .. fp1 and the contacts ac1 . . fc1 will cause relay P to be held and consequently relay SW. As a result, the timing relay ZP will be operated and locked up and will effect the following operations. At zp3 relay CO will be energized to change over the leads at co1 .. co10 to the reserve decoder and be locked with the latter at co11, at zp4 a circuit is closed to the faultindicating lamps, and at zp5 a locking circuit is made for the checking relays. When the changeover has taken place therefore indication will be given by one or more of the lamps FAL as to which of the contacts ac2 .. fc2 is held operated. (3) If a fault occurs in the counting equipment, relay TR will not be operated by the revertive signal and so the slow-to-operate relay DG, Fig. 4, will operate and at its contact dg4 hold the storing relays locked, modify the timing circuits at dg2 and at a further contact earth the line 17, Fig. 7, to set the switch SVS in motion. When the fault is found by this switch a relay BS operates to stop the switch and to apply earth at bs2 to the non-runner bar NRC and at bs3 to cause a corresponding lamp to light. A main alarm is also given and at contact bc4 circuit is closed to relays NR and TR in series the latter not operating however. Relay NR therefore functions as before to indicate that cancellation is necessary and the change-over to the other decoder will ensue. (4) If a fault lies in the decoder contacts the switch SVS will continue to rotate until wiper 8c reaches a contact wired to relay X. Relays BS and X now operate in series, the former lighting a lamp G1 to 40 or G41 to 80 and the latter at x2 breaking the circuit to bar NRC and at x3 extending earth over line 21 to hold relay DG operated. The code set up is thus maintained and the contacts may accordingly be inspected for the fault, change-over to the reserve decoder taking place as before. (5) The connecting relay C when energized locks up over the line 11 and the relay W, the contact w1 of which opens the circuit of the lower winding of relay KW and thus increases the resistance in the initial operating circuit to prevent energization of any other connecting relay should such be found meanwhile by the switch WMF. Specifications 331,500, [Class 106 (i), Calculating &c.], and 342,261 are referred to.