Patent GB-441360-A (GB)
Abstract: 441,360. Change - giving apparatus. ERRERA, A., 11, Corsa Sommeiller, Turin, Italy. April 18, 1935, No. 12017. Convention date, April 19, 1934. [Class 27] In apparatus for calculating and delivering change and having a series of coin tubes which are selectively actuated by a number of members, one for each numerical order of the amount to be cashed, and placed under the control of means depending upon the amount tendered, the said members are each constituted by a profiled piece which is divided into elements, each of which co-operates with the operating mechanism of a change tube and assumes different operative positions according to the figure which the amount to be cashed includes in the respective order, while a selector device is provided for bringing the operating mechanisms of the coin tubes into operative or inoperative condition according to the amount tendered. As shown, the apparatus includes mechanism of a cash register comprising, for each numerical order of the coinage, a rotary disc 3 which is set forward under the control of a row of keys 25 in a bank for setting up the amount to be cashed. The profiled control members comprise a set of cams 30-33 each of which gears with a disc 3 and is divided into a number of laterally adjacent elements co-operating with ends 40<1> of a row of levers 40 carried on a shaft 37 supported by an operating frame 36. Each of the levers 40 is normally connected by a pin 43 with a vertically sliding bar 44 connected by an arm 48 and a cross-shaft 49 with the coin ejector of a change tube 59, the connection of each of the levers 40 with its bar 44 being, however, controlled by a set of pairs of cams 54 each engaged by a double armed lever 52 linked with a bar 44 in such a manner that the bar 44 is disengaged from its pin 43 in a certain position of the cam. The cams 54 are all secured to a shaft 55 gearing with a disc similar to the discs 3 and controlled by a bank of keys 57 for setting up the amount tendered, the arrangement being that bars 44 of change tubes corresponding to the amount tendered and set up on the keys 57 remain connected with their respective bars 40. After the appropriate amounts have been set up on the banks of keys 25, 57, a main operating shaft 28 is rotated by turning a handle 108, during which rotation the frame 36 is oscillated about its shaft 35 by a pair of cams 39, 391 on the shaft 28 engaging rollers 38, 38<1> on end arms of the frame 36. The levers 40 are thus raised and those levers whose ends 40<1> engage a raised (shown hatched in Fig. 3) part of a cam element 30-33 turn clockwise about their pivotal shaft 37, and, if connected at 47 to a bar 44, cause ejection of a coin or coins from a respective change tube 59. The apparatus shown is for decimal coinage, cam 31 for example, corresponding to the units order and having 4 sections 31À1, 31À2, 31À3 and 31À4 (Fig. 3, I), the corresponding change tubes ejecting 5, 2, 1, and 1 units of currency respectively, so that any amount in this order from 1-9 units can be cashed, the change tubes corresponding to those of the above units (5, 2, 1, and 1) which are to be cashed, remaining unoperated owing to the ends 40<1> of the corresponding levers 40 entering recesses (shown unhatched) in the cam element 31. The cams 54 (see Fig. 3, II) for setting up the amount tendered are such that, with the apparatus operating in the manner so far described, change is delivered in a maximum number of coins of the smallest denominations. Thus, when 14.00 units of change are to be delivered, the coins 10+ 2+ 1+(0À50+0À20+0À10+0À10+ 0À05+0À05) would be ejected. In order to obviate this inconvenience, a transfer gear between the cams 30-33 is provided so that, in the above example, cam 31 is set back from position 6 to 5 so as to eject one unit more, and cams 32 and 33 are set back to position 9 so that no coins in the tenths and hundredths are ejected. For this purpose, the cams 30-33 are loosely mounted on the hubs of gear-wheels 34 by which they are connected with the setting up discs 3, so that movement through one step in relation to the wheels 34 against the action of springs 82 is permissible. Ratchet pawls 84 engageable with ratchet wheels 83 fast with the cams 30-33 are mounted in a frame 92 which is oscillated about the shaft 35 at the appropriate moment during the rotation of the operating shaft 28. The pawls 84 are each controlled by an arm 87 engaging a cam disc 88 turning with the cam 30-33 adjacent to that respective to the pawl, the arms 87 and pawls 84 being so interconnected that, during rotation of the operating shaft 28, if one of the cams 31-33 and those to its right are in the O-position (Fig. 3, I), these cams are moved through one step to position 9, and the cam on their left is moved to a position numbered one less. The carrier frame 92 for the pawls 84 is operated by cams 95, 95<1> on the main shaft through transmission mechanism which can be disconnected by operating a " change key " 99 when it is desired to obtain small change, or when the machine is used to give change when no amount is set up on the keys 25. The change tubes 59 each have a rotary ejector 61 operated by a bell-crank lever 62 linked with an arm on a bar 49. A second bell-crank lever 74, having a finger 75 adapted to enter a slot in the side of the tube, is flexibly connected by a spring 77 with the lever 62. When the tube becomes empty, the finger 75 enters the tube and the lever 74 raises a bar 73 to exhibit an " empty " notice adjacent the mouth of the tube.