Patent GB-335201-A (GB)
Abstract: 335,201. Hamilton, R. M. May 9, 1929. Totalizators. - In electric totalizators, each booth has means for storing a number of bet impulses for each runner, a multiple-contact switch connected to a plurality of booths rendering them successively operative for the release of the stored bets to the adding mechanisms. Operating mechanism. Keys 13, one for each runner, upon being depressed start the ticket printing and issuing motor, (not shown) housed in the casing 11. Beneath the keys are vertically slidable, push rods 17, one to each, mounted in a laterally slidable frame 18, so that by depressing a space bar (not shown) similar to that of a typewriter the rods 17 may be brought above plunger 27, 28 for place bets. or 25, 26 for win bets. The plungers are arranged in pairs 26, 28 behind pairs 25, 27, the latter operating an upper mechanism on a shelf 29 and the former the mechanism on a shelf 30, the front plungers being operated by alternate push rods, the intermediate push rods operating the rear plungers. All the push rods have abutments 31 to engage a locking bar 32 when pulled forward by a magnet 36 so that no key 13 can then be depressed or a ticket issued. Each plunger, 27 say, slides in a guide block 37 adapted to take a pair of plungers for a win and place, bet, Fig. 3, and carries a fork 40 to turn a pawl 45 into engagement with an " impulse storing " wheel 42 mounted on a spindle 43 and to advance this wheel 1¢ teeth when the back of the pawl 45 comes against the pin 48, release of key causing the spring return of the plunger 27 and the retraction of wheel 42 by ¢ a tooth. For every advance of a tooth the arm 57 closes the spring contacts 59, 60, the contacts 59 of a pair of wheels being connected to a common terminal 62, the contacts 60 being taken to terminals 63 (behind), 64. On the issue of nine tickets, an abutment 49 on the wheel 42 engages a tooth 51 of a tumbler 52 to force a spring pawl 55, 54 into a recess of the plunger 27 and prevent any further depression of plunger 27 and the issue of tickets. A return bar 50 extending along the front of a row of wheels 42, and pivoted about an axis concentric with them is carried forward bv the abutment 49 of the most advanced of the wheels 42 and is adapted to return the wheels 42 and the tumbler 52 to normal position and release the plunger 27. The bar 50 is carried at one end by a disc 66, Fig. 6, mounted on a rotatable spindle 67, Fig. 5, which carries in a casing 69 a spring tensioned when the bar 50 is advanced by an abutment 49, but prevented from returning the bar by a ratchet 86 and pawl 87 mounted on a shaft 83 geared through pinions 75, 82 to the spindle 67, which also drives a governor 81 to limit the return speed of the bar 50 when the ratchet 86 is released by the energization of a magnet 91. When a ticket is issued a cam disc 95 raises an arm 97 to close normally open contacts 98, 99 and open normally closed contacts 100, 101. Adjacent to the above mechanism is a relay 102, energization of which closes contacts 103, 104, while contacts 107, 108 are closed by means of a lever 106 when the locking magnet 36 operates the locking bar 32. Electrical connection is made by a multicore cable through a lead-in 112, Fig. 2, in an under-cover 109 by means of switch blades 114, 116, these undercovers being interchangeable for different booth machines. Operation. As shown diagrammatically in Fig. 9, in which all contacts are shown in normal inoperative position the contacts 98, 99 of the upper key groups are in parallel with those of the lower groups and the contacts 100, 101 of upper and lower mechanism on the shelves 29, 30 for the impulse wheels 42 are in series and connected to one contact for each machine, of a contact bank 150, of an electromagnetically operated preselector switch. Normally, the contacts 100, 101 being closed, the switch operating magnet 151 is energized and continually rotates the arm 153 over the contacts until it comes to a booth where a key has been depressed and contacts 100, 101 and the circuit through the magnet 151 broken. Here the arm 153 remains while the bets stored in this booth send the impulses to the adding machine. A second arm moves on to a corresponding contact on a second bank 154 of the switch putting a relay 155 in series with the magnet 36 through the now closed contacts 98, 99 to lock the keys and close contacts 107, 108. The relay 155 has a high and a low resistance winding, the former shorting immediately on operation through contacts 156, 157, which together with the second winding pass sufficient current to operate the magnet 36. When energized, the relay 155 closes a contact 158 which energizes relay 161 to close switch 162 and open contacts 163 and 164. The relay 155 also sets the contacts 159, 160 and contact 162 being now closed the relay 165 is energized and actuates through switches 166 - - 169, multiple relays 170, 175 - - 195, each of which closes a number of pairs of contacts such as 171, 172. These relays are so multiplied to operate a sufficient number of contacts for all the relays 102, one to each booth. Each of the contacts 171, 172 are in series with the high resistance winding of the relay 102 which if a key is depressed when the locking magnet 36 becomes energized causing an impulse wheel to advance 1¢ teeth, becomes energized, (the magnet 36 in this case being unable to operate the bar 32 as a key is depressed). This closes contacts 103, 104 and operates the magnet 210 which starts the printing motor ensuring the issue of a ticket. When this ticket is issued the key is released, the circuit of relay 102 is momentarily broken at 211 and the already energized magnet 36 then throws the contact 207 to 209 connecting the impulsing wheels directly to the supply 209. The locking magnet 36 also breaks contacts 213, 214 and makes 212, 214 breaking the circuit of the relay 155 and directly connecting magnet 36 to the supply. The relay 155 falls off sluggishly, permitting relay 102 time to complete its operation, and throws switches 159, 160 to their normal positions de-energizing relay 165 which in falling off breaks circuit of relay 161 at a contact 215 in parallel with 158 which has been broken by relay 155. At the same time relay 165 closes contacts 265, 266 causing through contacts 107, 108 energization of the release magnet 91 which operates ratchet and pawl 86, 87 allowing the spring return of the bar 50 which carries before it the abutments of all the wheels 42. The return of all these wheels cause their corresponding contacts 59, 60 to be made a number of times equal to the number of tickets issued for that runner, sending impulses through trunk lines to polarized relays 270, one to each trunk line, which will only operate to close the contacts 272 of the operating magnet 280 of the counting mechanism (as described in Specification 333,258) when the impulse current through the winding 270 is assisted by a fixed current through another winding. These windings are now energized through contacts 163, 164 closed as the relay 161 de-energizes. The operation of the relay 270 is assisted by it closing the switch 271 whereby increased current is provided. The impulses stored in each impulse wheel are thus transmitted to the adding mechanism, of which there is one for each runner connected to all the machines. When the above operations are completed, the cam 95 has returned to its normal position breaking contacts 98, 99 thus releasing the locking magnet 36 and allowing the issue of further tickets, and closing contacts 100, 101 whereupon the arm 153 of the multiple-contact switch 151 moves on. Specification 294,181 also is referred to. The first Provisional Specification states that the impulses from the wheels 42 may be transmitted to actuate an odds calculating machine as in Specifications 307,816 or 333,258. The second Provisional Specification describes a means for transmitting the stored impulses from one machine or a group of simultaneously operated machines in succession, the means employing a contact operated by a switch actuated by the notched cam in gear with the yokes of the impulse wheels.