Locks – Special application – For closures
Patent
1981-08-17
1984-10-09
Wolfe, Robert L.
Locks
Special application
For closures
70451, 292207, 2923363, 2923365, 292358, E05B 908, E05B 6506, E05C 304, E05C 310
Patent
active
044753640
ABSTRACT:
Door-barring lock apparatus has a bar member rotatably mounted to the wall near the doorway. When in a transverse or generally horizontal position, this bar member projects into the doorway for engaging the inside of the door near the opposite margin from the hinges for advantageously, positively barring the door against opening inwardly. By manipulation of a handle located inside of the building near the bar member, a person inside of the building can de-couple the bar from a locking rod extending through the wall to the outside of the building. Such de-coupling enables the person inside of the building to rotate the bar into an upright position for freeing the door to allow the door to be opened, regardless of whether this rod is locked against rotation. A lock assembly accessible from the outside of the building normally serves to lock the rod against rotation for normally locking the bar member in its transverse door-barring position. By unlocking this lock assembly and turning the lock, the rod becomes rotated for rotating the bar member from its transverse to its upright position for allowing a person outside of the building to open the door, or conversely to rotate the bar member from its upright to its transverse position for barring the door from the outside.
REFERENCES:
patent: 401003 (1889-04-01), Burns
patent: 1407115 (1922-02-01), Bailey
patent: 1438164 (1922-12-01), Andrew
patent: 2469601 (1949-05-01), Lee
patent: 2677967 (1954-05-01), Galbraith
patent: 4037488 (1977-07-01), Laney
Burns Susan L.
Frank Claire D.
Frank Gerald A.
Palermo John J.
Parmelee G. Kendall
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