Door latch operating mechanism

Details Door latch operating mechanism Door latch operating mechanism

1995-07-18

1997-06-17

Lindsey, Rodney M.

Closure fasteners

Knobs

292348, E05B 100

Patent

active

056391323

ABSTRACT:
Door latch-operating mechanism for retracting a door latch. A rotary shaft is mounted in a housing and is adapted to retract a latch when rotated. The shaft is turned by a handle on the outer end of the shaft. A tube is sleeved on the shaft between the handle and housing. The housing and handle are solid brass forgings. The tube is also solid brass. Any wear of the handle will not be noticed since it is solid brass rather than being made of some less attractive metal plated with brass. The shaft is completely covered and concealed by the brass housing, handle and tube.

REFERENCES:
patent: 1611015 (1926-12-01), Freysinger
patent: 1611753 (1926-12-01), Keeler et al.
patent: 1878394 (1932-09-01), Haan, Jr.
patent: 2058685 (1936-10-01), Haan, Jr.
patent: 2306867 (1942-12-01), Dean
patent: 3200630 (1965-08-01), Wilson
patent: 3283400 (1966-11-01), Wilson

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