Door lockset and strike

Details Door lockset and strike Door lockset and strike

1974-09-26

1976-01-27

Craig, Jr., Albert G.

Locks

Special application

For closures

70106, 292153, 292163, 29216921, 292340, 292DIG31, E05B 6506

Patent

active

039344355

ABSTRACT:
A lockset has a die cast, monolithic body pivotally supporting a lever handle which upon actuation and through fingers engages tabs of a lock bolt assembly for selective linear retraction of the latter. A rotatable knob carried by the body through a spindle and a guide plate mounts a cam plate which acts, upon rotation of the knob in either direction, to retract the bolt assembly. The bolt has opposed U-shaped guides which receive the guide plate and guide the bolt laterally and vertically. A lock has a lock lever which positively engages the bolt assembly to lock the latter in place. A follower lever and the lock lever are pivoted about a common axis. The follower responds to a barrel lock between two positions to lock and unlock the lock lever from the bolt assembly. The lock lever also responds to a latch pin independently of the follower on the opposite side of the lockset from the barrel lock, to lock and unlock the bolt assembly. A monolithic lock strike has lateral passages for receiving shanks of an interlock bar. Heads of the interlock bar interfere with the strike to resist forces separating the lock strike from the lockset.

REFERENCES:
patent: 915873 (1909-03-01), Mosher
patent: 1056036 (1913-03-01), Loy
patent: 1069753 (1913-08-01), Appleby
patent: 1399897 (1921-12-01), Singer
patent: 2900204 (1959-08-01), Pelcin
patent: 3266277 (1966-08-01), Chesler
patent: 3786657 (1974-01-01), Loikitz
patent: 3790196 (1974-02-01), Sanders et al.

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