Closure fasteners – Bolts – Swinging
Patent
1977-03-29
1978-10-24
Moore, Richard E.
Closure fasteners
Bolts
Swinging
2923363, E05C 1300
Patent
active
041218647
ABSTRACT:
A latch assembly comprises a bolt unit mounted in a frame member of a door or window sash, and a bolt-driving unit installed on one side of the door or window sash. The bolt unit has a latch bolt supported by a rotatable and axially movable shaft, the bolt being pivotable between projecting and retracted positions by rotation of the shaft. The bolt driving unit includes an axially movable driver torque bar having on one end a driver that is normally disengaged from the shaft. The shaft has thereon engaging means normally held in engagement with a support frame of the bolt unit. Upon axial movement of the torque bar toward the shaft, the driver is moved out of engagement with the fixed engaging means into driving engagement with the shaft. The engaging means on the shaft is shifted out of engagement with the support frame by continued movement of the torque bar, whereupon the shaft is free to rotate about its longitudinal axis. The driver torque bar can be axially moved by a push button mounted in the handle coaxially with the torque bar.
REFERENCES:
patent: 1236881 (1917-08-01), Schalow
patent: 1783785 (1930-12-01), Habicht
patent: 3025096 (1962-03-01), Williams
Moore Richard E.
Yoshida Kogyo K.K.
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