Patent GB-257015-A (GB)
Title: An improved device for registering the time of locking of receptacles for slips, tickets and other small articles
IPC: G07C1/32
Filed: 1925-05-20
Abstract: 257,015. Birtwhistle, H. May 20, 1925. Time-checking apparatus, check and token.-A device for registering the time of locking of a receptacle for slips, tickets, &c. comprises a casing containing a watch or other time keeping mechanism and having means for locking it to a frame carrying the receptacle and provided with a lid to close the casing by separate locking means. The casing and the frame have interlocking flanged and recessed portions preferably extending around the periphery and with serrated edges to prevent unauthorized insertion of tickets &c. The casing contains a bolt which can be released by a tripping lever to engage hasps on the frame to lock the receptacle when the opening thereto is closed. Movement of the bolt at the same time, through means associated with the stop mechanism of the watch, is effective to start or stop the watch. As shown in Figs. 7 and 9, the receptacle is attached as by screw rivets to a frame 35 by inserting the edges into a groove 37 extending around the frame. The frame 35 is hinged to the casing 11 and is so formed that in the closed position the flange 38 and groove 39 on the frame engage a recessed and flanged portion 40, 41, Fig. 6, on the casing. The flange 38 is preferably serrated to detect fraudulent insertion of tickets. A hasp 44 on the frame is adapted to enter a slot 33, Fig. 2, in the casing 11. The casing has a hinged lid 12, Fig. 5, and .contains a cushioned support for a stop watch 14, a locking bolt 16, and a trip lever 19. The hinges 13 and 43 are closed at one end and have a hinge pin with a pointed end at the open end to prevent tampering therewith. The 'bolt 16 .carries a forked plate 22 with notches 23, 24 either one of which is adapted to engage the stop lever 15 of the watch depending upon the way the watch is inserted so that it mav either be started or stopped. A groove 18 in the bolt normally engages one end of the trip lever 19 which is pivoted at 25, the other end having a button 26 for engagement with a press stud on the lid which when depressed against the action of a leaf spring 29 frees the bolt 16 to lock the receptacle. The bolt 16, as shown in Fig. 6, is mounted on a pin 31 and is provided with a spring 32 adapted to force the tongue 21 of the bolt to locking position, the bolt being held in this position by a spring-pressed catch 48 in a housing 49, Fig. 5, dropping behind the head of the bolt. A masking plate 46 is provided to cover the slot 33 for the hasp 44 to prevent tampering with the lock mechanism. A separate lock for the lid operable through a keyhole in the lid 12 is provided in a casing 52. The lock carries a spring controlled disc 53 having two key slots one of which is covered by a mask or seal of paper to detect unlocking of the lid. To cover the slot the disc 53 is moved against the action of the spring 56 and the key inserted to engage the second slot to hold the disc. In a modified construction of bolt, Fig. 8, pawls 62, 63, adapted to engage serrations 61 on the bolt, are provided to prevent the release thereof until the casing is unlocked and the parts are to be reset.