Patent GB-712974-A (GB)
Title: Improvements in coin and key controlled locking means for caretaker cabinets
IPC: G07F17/12
Filed: 1950-01-06
Abstract: 712,974. Coin and key controlled locks for caretaker cabinets. BRECKNELL, MUNRO & ROGERS, Ltd., SHEPHERD, R. W., and ALLEN, S. Dec. 19, 1950 [Jan. 6, 1950], No. 348/50. Class 27 Caretakers. The key actuated barrel operating the bolt of a coin and key controlled caretaker cabinet is mounted in a carrier which is normally secured in operative position in a frame on the cabinet but which may be removed from the frame for replacement when a guard lock is released by a key inserted from the outside of the frame. In the form illustrated the frame also is released when the key of the guard lock is turned further. The carrier 10, Fig. 4, is normally locked in a tubular housing 21 on the frame 17 by a latch 32 which engages in front of flange 33 on the carrier. The catch 32 is carried by a plate 69 formed with slots 70, 71, 72, Fig. 10. by which it is mounted to slide on bolts 73, 74, 75. The plate 69 is raised to withdraw the latch 32 and release the carrier 10 when a key 11, Fig. 4, is inserted in the barrel 79 of a guard lock and given a part turn to engage a pin 86 on the barrel with the upper edge of a cutaway 87 in the plate 69. The carrier 10 and its barrel may then be withdrawn and replaced by another carrier which is locked in position by turning the barrel 79 of the guard lock back beyond its normal position so that the pin 86 engages the lower edge of the cut-away 87 to press the plate 69 down. The barrel 79 of the guard lock 79 may be turned further than is necessary to release the carrier 10 so that a projection 82, Fig. 10, on the barrel engages a tooth 81 on a rocker 80 coaxial with the barrel and turns the rocker: the tooth 81 consequently moves out of locking engagement with an inclined surface 83 on a cut-away in an upper bolt 14 and engages a horizontal slot 85 in the bolt which it then draws down. When the bolt 14 has been thus withdrawn the frame 17, together with both lock mechanisms, may be withdrawn from the wall 19, Fig. 4, of the cabinet by tilting it about its lower edge and then lifting. The carrier 10 is held against rotation in the housing 21 by a grub screw (not shown) in the housing which engages a groove in the flange 33 of the carrier. A counter operated each time the cabinet is locked enables an attendant to identify a cabinet which has not been opened during an unduly long period. Coin action, weight. Coin discharging mechanism. A slot in the rear end of the rotatable barrel 9, Fig. 4, of the cabinet lock engages a tongue 26 on a rocker 25 carried by a journal 23 and connected to slide the locking bolt 8 by a pin 28 which engages a slot in a plate 40 secured to the bolt. Integral with the rocker 25 is a cam disc 30 formed with a notch 41 in which an arm 58 on a counterweighted coin lever 48 normally engages to lock the rocker against movement to shoot the bolt. With the lock-barrel in this position the key 6 cannot be removed. When a coin is inserted in a coin slit in the frame 17 it passes down a shoot 56 and rests at 61 on a bent end of the lever 48 which turns about its pivot 53 so that the arm 58 is moved clear of the cam disc 30 'and into engagement with a plate 47 secured to the cam disc. The key 6 may now be turned to turn the rocker 25 and the cam disc 30 and shoot the bolt 8: as it is turned the motion of the plate 47 permits the arm 58 to escape so that the lever 48 is turned further by the coin and permits it to pass to the coin box. The lever 48 is then returned by a weight 57 to the position shown in broken lines in Fig. 4 in which the arm 58 rests against the cam disc 30. Further coin insertion is prevented by means (not shown) coupled to the bolt 8 and adapted to mask the coin insertion slit. The key 6 may now be removed. When the cabinet is again unlocked the notch 41 is again presented to the arm 58 so that the lever 48 turns about its pivot 53 and comes to rest against an adjustable stop 64. Specification 627,504 is referred to.