E - Fixed Constructions – 05 – B
Patent
E - Fixed Constructions
05
B
292/3
E05B 43/00 (2006.01)
Patent
CA 1116654
ABSTRACT OF THE DISCLOSURE The invention disclosed in the application is a time lock for bank vault doors and the like having a plurality of timer units of the settable dial type with a clockwork mechanism which includes a slip clutch in the gear train which permits the main winding stem to be rotated in an unwinding direction to move the dial in a decending time direction if it has been overdriven to a higher time setting than desired, and which includes a kicker arm mechanism to be abruptly kicked by spring force against a carrier assembly for the time lock unit to shift the carrier to release position when the dial reaches zero time.
322793
Bechtiger Charles G.
Miller James C.
Macrae & Co.
Sargent & Greenleaf Inc.
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