E - Fixed Constructions – 05 – B
Patent
E - Fixed Constructions
05
B
70/3
E05B 47/00 (2006.01)
Patent
CA 1092841
Abstract of the Disclosure A door lock structure adapted to be actusted by a mag- netic card key to operate a conventional cylindrical door lock with substantially no modification to such lock. A housing containing the magnetically operated elements of the lock is mounted, along with a modified knob, on the conventional spindle of the lockset in lieu of the usual door knob. The housing is freely rotatable relative to the lockset spindle to prevent wrenching. The latchbolt retractor of the lockset is actuated in the normal manner to unlock the lockset by rotating a con- ventional driver bar. The driver bar in this structure is rotated by registering lnterengaging elements carried by the driver bar and a slide which is actuated by a properly coded magnetic card key. The modified knob may be freely rotatable on the spindle or may be fixed thereto,
291108
George H. Riches And Associates
Sedley Bruce S.
LandOfFree
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