Method for locking a sash

Details Method for locking a sash Method for locking a sash

1993-01-14

1994-05-03

Moore, Richard E.

Closure fasteners

Bolts

Sliding

292153, 29437, E05C 114

Patent

active

053081277

ABSTRACT:
A method is for selectively locking two frame members of a window or door to prevent sliding movement of one frame relative to the other. The method involves providing an aperture in one frame, securing a sleeve to the other frame in alignment with the aperture, inserting a bolt through the sleeve and into the aperture. The bolt includes two lengths which are pivotably connected together. When the bolt is in retracted position, one portion of the bolt can be pivoted relative to the other portion of the bolt and then moved along a line perpendicular to the axis of the first portion of the bolt.

REFERENCES:
patent: 257722 (1882-05-01), Kempshall
patent: 595290 (1897-12-01), Dowman
patent: 672439 (1901-04-01), Burson
patent: 876429 (1908-01-01), Bleyer
patent: 1490221 (1924-04-01), Lynn
patent: 1650454 (1927-11-01), Langan
patent: 1714196 (1929-05-01), Vara
patent: 1892613 (1932-12-01), Edgin
patent: 2657086 (1953-10-01), Sweet

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