Patent GB-751660-A (GB)
IPC: G07B1/02
Abstract: 751,660. Ticket-issuing machines. AUTOMATIC TOTALISATORS, Ltd. May 12, 1954 [May 21, 1953], No. 13943/54. Class 106 (3). In a doubles ticket-issuing machine for a race totalisator electromechanical devices are provided for selecting the first and second legs and their associated type drum printing faces: Competitor selection mechanism.-In the embodiment shown the operator's instrument coinprises a hand-lever 7, Fig. 1, fulcrumed on a lug 8 fixed to a vertically rotatable sleeve 9 so as to be traversable over a selector dial plate 12 bearing first leg selector holes 16 and second leg selector holes 17 including a test hole adjacent the second leg positions, into any one of which a peg 11 carried on the end of the lever 7 may be inserted, the peg 11 normally riding clear of the plate by the action of a spring 13. A rod 18 pivoted to the lever 7 passes through the sleeve 9 and is connected at its lower end to one arm 19 of a lever whose other arm 22 has a stop 23 engageable by a corner 24 of a locking lever 25 loaded by a spring 26 and having an arm 28 operating handle-lock contacts 29, 30. The locking lever 25 has a spur 32 forming a follower to a cam 31 fixed on the sleeve 9. With the handle 7 over the first leg holes the cam 31 obstructs lever 25 but when over the second leg holes the cam 31 is clear of the spur 32 so that if in that position the lever 7 is depressed step 23 and corner 29 engage to hold levers 25, 19, rod 18 and lever 7 in locked position. Each hole 16, 17 has an associated operating plunger 33, 34, Fig. 2, normally held with its upper end face flush with the dial plate 12 by a spring 36. On depression of a first leg plunger 33 by the peg 11 a cam groove 37 thereon moves a nose 38 of a cantilever leaf spring 39 to close first leg competitor contacts 40. The lower end of each first leg plunger is formed as a double conical latch portion 41 able to enter a hole 42 in a locking plate 43 which is free to turn about the sleeve 9 and is spring loaded so as normally to abut against a stop 45. On depression of a first leg plunger 33 the latch portion 41 slightly displaces the plate 43 which then locks the depressed plunger by engaging its groove 46 until another plunger is depressed to re-displace the plate 43. The second leg plungers 34 have no such locking means but on depression move the associated spring leaf 49 to operate contact leaves 50, 51, 52 to cause the middle contact 51 to leave its signal lamp contact 50 and to close its second leg competitor contact 52. Each first leg competitor contact 40 is connected to an associated contact stud 53, Fig. 3, in the first leg stationary distributer plate 54. A first leg wiper arm has one limb 55 movable over the studs 53 and a second limb 56 bearing against a slip ring 57 connected to the first leg relay 58, Fig. 4. One extra stud 53 is provided for test purposes. Each first leg contact 40 is in series with a signal lamp 59 each mounted in brackets 60 under a numbered window and each first leg contact circuit is completed through first leg common contacts 77 comprising three leaf springs the middle of which is spring urged to keep contacts 77 open with test relay 107 deenergized, the other pair of contacts 78 forming the first leg test contacts. Each middle leaf 51 of second leg selector switches is connected to, one contact stud 81 in the second leg stationary distributer plate 82 having its studs engageable by one limb 83 of the second leg wiper arm whose other limb bears against a slip ring 85. One extra stud is provided for test purposes. Each second leg circuit is completed through the middle leaf of the second leg common and test contacts 87, 88 and via the second leg relay 89. Printing-drum surface selecting means.-With main switches 138, 139, 140 on, the motor 72 is started and test relay 107 is energized so that contacts 77 close. The motor 72 drives a slipping clutch 70, 71 whose driven member 70 is geared to the first leg printing drum 75 and through gearing 66 to the first leg wiper driving gear 67. The gear 66 is integral with an escapement wheel 64 engageable by a pawl 63 controlled by a first leg magnet 62 whose contacts 61 are closed with relay 58 de-energized. The wiper 55 therefore rotates over the studs 53 until a first leg selector circuit is completed through the competitor contacts 40 associated with a depressed first leg plunger 33. Completion of such a circuit lights the associated lamp 59, energizes first leg relay 58 thereby opening contacts 61 to de-energize magnet 62 so that the pawl 63 engages with the escapement 64 preventing further rotation of the first leg selector mechanism and halting the drum 75 in appropriate printing position. The second leg system has magnet 91, pawl 92, escapement 94, gear 96, wiper driving gear 97, clutch 100, 101, and second leg type drum 104 all arranged as the corresponding parts in the first leg mechanism, and the system rotates until the second leg selector circuit is completed via wiper 83, appropriate stud 81, contacts -52, 87 and second leg relay 89 energization of which de-energizes second leg magnet 91 (through the relay-controlled contacts 90) thereby halting the rotation through the engagement of pawl 92 and escapement 94. In this system, however, the lamp associated with the selected second leg competitor does not light up until the unlocking of the hand-lever 7 at a later stage. Betting circuit selector means.-Both stationary selector plates 54, 82 have associated betting distributer plates 116, 117. The first leg betting distributer 116 has contacts 118 swept by a betting wiper arm 119 whose other arm 120 runs on slip ring 121. The second leg betting distributer 117 has contacts 122 swept by arm 123 whose other arm 124 runs on slip ring 125. The contact studs 118, 122 are connected in known manner to known competitor and total adding units as, for example, in Specification 651,125. The first and second leg betting circuits are completed by contacts 76, 105 which are closed when the first and second leg relays 58 and 59 respectively are energized so that the betting impulses are only passed 'when the two type drums are in their selected positions. Ticket-issuing means.-The first leg betting common' circuit passes through an issuer trip coil 130 and associated trip contact 131. Energization of coil 130 opens the trip contacts 131 and closes associated holding contacts 132 which energizes a clutch 134 to initiate any known mechanical ticket production cycle. Mechanism releasing means. The ticketissuer drive shaft 135, Fig. 1, has a lock release cam 136 which depresses the tail portion 137 of the locking lever 25 at or shortly after completion of a ticket printing to release the latch levers 19, 22 thereby unlocking hand-lever 7 and reopening lock-contacts 29, 30. Release of the hand lever 7 opens the selected leg contacts 52 and closes the related contacts 50 thereby lighting the lamp 80 corresponding to the second leg selection. Testing circuits.-Depression of peg 11 on lever 7 through the test hole in the second leg portion of the dial plate opens contacts 106 thereby de-energizing test relay 107. This causes contacts 108-111 and 78, 88 to close and thereby the associated contacts 112-115, 77, 87 to open. Opening of contacts 77 deenergizes the first leg relay 58, energizing first leg magnet 62 and the first leg system is rotated until wiper 55 arrives on the test stud 53 thus reenergizing first leg relay 58 and halting the first leg mechanism with its drum at the test priiiting position. A similar action follows in the second leg selector circuit, as a result of opening contacts 87. Contacts 113, 115 in opening cutout the normal betting circuits and a test betting circuit and: a test printing cycle are then initiated via contacts 109, 76, 131 and trip coil 130, contacts 108, test load 143, contacts 110, 30, 105, 111 and wire 144. The cycle is concluded in the ordinary way by mechanical release of hand-lever 7 and the reopening of contacts 29, 30. In a further embodiment, push-button selector mechanism is provided.