Double hook-bolt unit lock

Details Double hook-bolt unit lock Double hook-bolt unit lock

1989-10-31

1991-04-23

Wolfe, Robert L.

Locks

Special application

For closures

70143, 70134, 292 49, E05B 6314

Patent

active

050090895

ABSTRACT:
A double hook-bolt unit lock includes a lock barrel having a revolving rod connected thereto to cause a cam wheel assembly to move simultaneously so as to drive the stop keys of a stop frame assembly away from the upper notched portion of a brake frame assembly and to let the cam wheel assembly move the brake frame assembly rectilinearly via a lower notched portion of the frame assembly. By means of the push force from L-shaped guide slots of the side plates of a lockcasing and the guidance of oblique guide slots of a brake frame assembly, the two L-shaped bolts which are movably connected to the brake frame assembly are driven to smoothly into respective locking positions to lock the door.

REFERENCES:
patent: 1264814 (1918-04-01), Kornstein
patent: 1439332 (1922-12-01), Schulte
patent: 1530655 (1925-03-01), Dowling
patent: 1673468 (1928-06-01), Palinkas
patent: 1730011 (1929-10-01), Kohn
patent: 2055913 (1936-09-01), Schwarz
patent: 2058517 (1936-10-01), Schoorel
patent: 3904230 (1975-09-01), Fane et al.
patent: 4623175 (1986-11-01), Carroll
patent: 4656849 (1987-04-01), Rotondi et al.
patent: 4739638 (1988-04-01), Lin

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