Safety devices for door locks of the spring-loaded, sliding bolt

Details Safety devices for door locks of the spring-loaded, sliding bolt Safety devices for door locks of the spring-loaded, sliding bolt

1977-10-11

1979-05-15

Moore, Richard E.

Closure fasteners

Bolt guards

E05C 2100

Patent

active

041544684

ABSTRACT:
A device for rendering a spring-loaded, sliding bolt lock resistant to tampering comprises a sheet form member which can be mounted between the door stile and the door jamb and is formed with slots so that when a strip of pliable material is inserted between the door stile and the door jamb at a position spaced from the lock and is moved towards the lock, the leading edge of the sheet engages one of the slots in the member.

REFERENCES:
patent: 1051530 (1913-01-01), Whalen
patent: 1727323 (1929-09-01), Bartlett
patent: 2692158 (1954-10-01), Tirschel
patent: 3825291 (1974-07-01), Sprunger
patent: 3895834 (1975-07-01), Grinbaum et al.

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