E - Fixed Constructions – 05 – B
Patent
E - Fixed Constructions
05
B
70/1, 292/2
E05B 43/00 (2006.01) E05B 13/00 (2006.01)
Patent
CA 1253710
DELAYED ACTION TIME LOCK ABSTRACT A delayed action time lock comprising a lock housing having a locking bolt mounted for reciprocation therein. The lock housing is adapted to be secured to a door and is provided with a key cylinder which extends through the wall of the door. The key cylinder has a key activating portion which is connected to a lever retracting cam which is operable by rotating a key positioned in the key cylinder. A timer mechanism is connected to a disc timer cam located in the housing. A crank is provided on the disc timer cam for rotation thereof. A pin is selectively positioned in a selected one of a plurality of holes in the disc timer cam to limit the operating time of the timer mechanism. A bolt retracting lever is secured to the locking bolt and has a hook portion. A cam engaging element is provided in a free end portion of the bolt retracting lever. The disc timer cam has a peripheral notch for receiving the cam engaging element to position the bolt retracting lever to an actuable position when the lever retracting cam is engageable with the hooking element. A spring biased cancelling cam is provided for supporting the bolt retracting lever at a non-actuable position.
484051
Industries C.l. Inc.
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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