Patent GB-739686-A (GB)
Title: Improvements in and relating to vending machines
Inventor: JENSEN AAGE
IPC: G07F5/26
Filed: 1954-04-26
Abstract: 739,686. Coin-freed vending apparatus. AKTIESELSKABET SOREN WISTOFT & CO.'S FABRIKER. April 26, 1954, No. 12064/54 Class 27. In a multiple-drawer vending machine, each manoeuvring bar 22 of an upper set of four bars corresponds to a certain price and can be fitted with an adjustable or detachable abutment 32 to set the price of an article to be obtained from a particular drawer 3; a coin mechanism 17, if the correct number of coins is inserted, connects the appropriate manoeuvring bar 22 to a shaft 16 and, during the initial movement of a drawer 3, an operating member 23, 36 or 70 for that drawer is moved to engage the abutment 32 on' the bar and the movement of the bar, through the shaft 16, displaces a locking pawl 15 so that a release bar 12 is free to move and allow full opening of the drawer. During further movement of the operating member after release of the bar 12, it engages one or more abutments 34 on a set of five lower manoeuvring bars 22 and the bars are thus moved to release appropriate change from one or more of five coin-storage tubes 20. One or several of the manoeuvring bars may be connected to both the coin mechanism and the change tubes, operating one and then the other at different positions in its movement. A release lever 7 mounted below each drawer 3 has a pin 6 engaging an inclined groove in the bottom of the drawer and also engages a stop on the release bar 12. An extension of the lever 7 engages an operating member so as to rotate, pivot or axially displace it and the operating member may be any of the three types 23, 36, 70 shown on Fig. 1. The operating member 36 is a plain lever pivoted at its upper end, the member 70 is a similar lever but is connected by parallelmotion linkage 73 to an abutment bar 77 that moves parallel to the axes of the manoeuvring bars and the member 23 is a rotatable shaft connected to an abutment bar 29 by arms 27, 28 pivotally joined together. The release bar 12 has some free movement before it will engage the locking pawl 15, thus allowing the operating member to be moved by the initial movement of the drawer sufficiently to engage an abutment pin 32 and, provided the required coin or coins have been inserted, to release the pawl through the shaft 16. On the drawer being pulled fully out, the operating member engages one or more pins 34 on the lower manoeuvring bars and releases the required change. Where a manoeuvring bar 22 is connected to both the coin and repayment mechanisms, it may be moved by means such as those shown in Figs. 6, 7 and 10. In Fig. 6, the operating member 23, which is rotated counterclockwise and then clockwise by a pin and zig-zag slot connection with the drawer release lever 7, has an arm 44 carrying a pair of spring-loaded pawls 45, 46 engaging the abutment pins 32 and 34 and the spring-loaded bar 22 has two slots 38, 39 into which extend levers 18 and 21 of the coin and replayment mechanisms respectively. The bar is displaced first to the right to operate the coin member 18 and then to the left to operate the repayment member 21. In Fig. 7, the bar 22 is moved by the lever-type operating member 36 and carries a pair of cams 47, 48 for operating the members 18 and 21. The member 36 is first connected to the bar by a pawl 50 and abutment 54 and then, after a projection 56 has released the pawl 50, by direct engagement of the member 36 with an abutment 55. As shown in Fig. 10, the operating member 23 has an arm 57 with a pair of spring-loaded pawls 58, 60 which respectively engage in succession the pin 32 and the pin 34 on a bar 22 having slots 38, 39. In a modification of the embodiment of Fig. 10, the arm 57 extends across the bar 22 and has a pawl on each side of the bar engaging a pin on each side of the bar. There may be a pair of pawls for each manoeuvring bar or upper and lower pairs may be connected by a pair of vertical members capable of engaging abutments on all the manoeuvring bars.