Patent GB-190200389-A (GB)
Title: Improvements in Safes and Strong Rooms.
Inventor: CHATWOOD SAMUEL
Filed: 1902-01-06
Granted: 1902-12-18
Abstract: 389. Chatwood, S. Jan. 6. Safes and strong-rooms locks, key.-Relates to bolting and locking mechanism for the doors of safes and strong rooms, and also to auxiliary frames for the doors. A bolt 5, Fig. 1, is pivoted in a recess 2<a> in a plate 2 secured to the front wall 1 of a safe &c., and is adapted to engage the wall of a recess 4<a> in a frame 4 secured to the door 3 to lock the door in the closed position, substantially as described in Specification No. 6167, A.D. 1901. A sliding bolt 6, mounted in a casing 9 and pivoted to a bracket 8 fixed to the bolt 5, is employed for operating the bolt 5. A cam 12 fixed on a spindle 11 works in a slot in the bolt 6, and by turning the spindle, by means of a handle, the bolt 6 is moved to shoot or retract the bolt 5. Tumbler or other key-operated or combination mechanism is arranged to shoot a third bolt into engagement with a recess in the bolt 6, when in the locking position. This bolt may be formed with a bifurcated portion 14<a>, adapted to engage a square part of the spindle 11, to prevent strain from being put upon the bolt &c. The lock casing 9 is secured to a plate fixed to the plate 2 by means of screws &c., which are protected by the door when closed. Protecting-plates 16, which may be of the type described in Specification No. 6166, A.D. 1901, are arranged at the front and side of the casing 9. In a modification, the spindle 11 is formed with a screwed portion engaging a nut pivoted in a bracket attached to the bolt 5. By turning the spindle, the bolt 5 is shot or retracted. In the arrangement shown in Fig. 6, the bolt 5 is arranged to slide between guide-plates and upon guide-pins 27, and is adapted to engage a recess in a frame 4 to secure the door. The bolt is formed with diagonal slots 22 into which take pins 23 fixed to a bar 24. This bar is provided with a rack 25 in engagement with a pinion 26 fixed to the spindle 11. Upon turning the spindle, the bar is moved vertically, and serves to shoot or retract the bolt 5. A bolt 14, operated by key &c. actuated mechanism 15, is shot behind the bolt 5 to retain it in the locking position. A bifurcated portion of the bolt engages a square part of the spindle 11, when the bolt is shot. In a modification, the bar 24 is dispensed with, and the bolt 5 is moved diagonally into or out of engagement with the frame 4 by means of a pinion on the spindle 11, working in engagement with a diagonal rack on the bolt. In another arrangement, a cam on the spindle engages a hole in the bolt 5, so that by turning the spindle the bolt is operated. The bolt slides between guide-plates and upon guide-pins. The sliding bolt and actuating mechanism may be mounted on the door, and the recess into which the bolt is shot may be formed in a frame secured to the wall of the safe &c. The bolts may be arranged to lock the door at the bottom or top or both. In a door of the kind described in Specification No. 6166, A.D. 1901, a frame 33, Fig. 12, is applied round the door, in order that the door 3 may be fitted in its bed on the safe &c. frame 34 without reducing the thickness of the door plate. This frame may be made in one piece fixed to the door by shrinking, or may be made in sections and secured to the door by screws &c.