Patent GB-836124-A (GB)
Abstract: 836,124. Time recording apparatus. OLDHAM, F., and OLDHAM, A. April 24, 1957 [May 10, 1956], No. 14503/56. Class 106 (4). [Also in Group XXV], Relates to locking and timing apparatus for bag locking, of the type comprising a lockable casing 4 enclosing a timing mechanism including a paper recording disc 9 driven by clockwork 8, the casing having an extension 19 provided with a plurality of parallel recesses separated by walls 20 each recess being adapted to receive the folded edges of a bag, there being a bolt 7 projecting from the casing and displaceable stepwise to project across successive ones of the recesses through aligned holes 21 in the recess walls and in the folded edges of the bags, thereby to prevent removal of the bags, means being provided within the casing to prevent withdrawal of the bolt, the clockwork 8 being started upon first displacement of the bolt 7 and subsequent displacements thereof operating the timing mechanism to record on the disc, the time at which each bag is secured. According to the invention, the bolt 7 is displaceable by stepwise rotation of a toothed wheel 12 engaging teeth 13 on the bolt, there being an operating knob 18 externally of the casing and incorporating a retractable pin 17 engageable into successive holes 15 provided at equal intervals around the toothed wheel 12. As shown, the container 4 is provided with a plate 5 which carries the bolt 7 and the clockwork mechanism 8 and also the disc 9, the edge of which passes through a guide 10 having a punch operable to punch the disc at each locking movement of the bolt. The bolt is carried in a tube 11 which is gapped to allow the teeth 13 on the bolt to engage the toothed wheel 12, movement of the wheel to extend the bolt leading a spring 14 connected between the wheel and the plate 5. The knob 18 is carried on a triangular plate 19 pivoted about the centre of the wheel 12. The arrangement is such that the pin 17 is slidable in the curved slot 16 equal in length to the distance between the holes 15 and if pulled out by the knob 18 against a spring (not shown) and moved to one end of the slot and released, will engage one of the holes 15, by which means the wheel 12 may be advanced through a distance equal to the distance between the holes 15. The wheel 12 is also provided on its face nearer the plate 5, with ratchet teeth 22 each of which includes a flattopped portion 23, which, when the apparatus is not in use, supports one end of a lever 24 carried-on a pivot 25 and provided at its other end with a press-button 26. In this position, a pin on the supported end of the lever projects upwardly through the guide 10 and into the disc 9 to hold the latter against rotation by the clockwork mechanism 8. The latter is wound by a key passed through a hole in the plate 5 covered by the disc, which latter is retained on the hour spindle of the mechanism by a knob 27. In operation, the first bag is inserted in recess in the extension 19, the knob 18 is moved to the other end of the slot 16 to move the wheel 12, thus moving the bolt 7 through the hole in the bag. The pin 17 on the knob 18 is then withdrawn from the hole 15 and the knob moved back in its original position for the pin to engage the next hole. The movement of the wheel 12 disengages the lever 24 from the tooth portion 23 so that the lever drops and removes its pin from the disc 9 which is thus freed to be rotated by the clockwork mechanism 8. When a second bag is inserted, the wheel is turned as before, the lever 24 is raised by the ratchet tooth and the pin on the lever punches a hole in the disc. The lever then falls behind the tooth to lock the wheel against return movement. When all the bags have been inserted, the lid 6 is removed and the button 26 is depressed to allow the wheel 12 to be rotated in the reverse direction by the spring 14 which withdraws the bolt 7 to its original retracted position.