Safety lock for sliding sash window

Details Safety lock for sliding sash window Safety lock for sliding sash window

E - Fixed Constructions

05

C

292/36, 108/45.5

E05C 7/00 (2006.01) E05B 65/08 (2006.01)

Patent

CA 1142034

A B S T R A C T A safety lock is disclosed for a sliding sash window. The lock allows a sliding sash window to be locked in a partially open position but prevents illegal access through a window. The safety lock is for a window with an inner sash and an outer sash and comprises a sliding lock pin located in one corner of the inner sliding sash on a surface normal to the direction of move- ment of the sliding sash, a corner section at the corner of the inner sliding sash, having a passage for the sliding lock pin to move into a locked position with the outer sash, and a a detent located in the outer sash to engage with the sliding lock pin when in the locked position, the detent positioned so that the inner sash may move a predetermined distance relative to the outer sash before the lock pin engages the detent.

376861

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