Window

Details Window Window

E - Fixed Constructions

05

F

E05F 3/00 (2006.01) E05D 15/22 (2006.01)

Patent

CA 2075321

A window is constructed such that a window sash may be slid upwardly and downwardly along a side jamb of a window, and also may be inclined relative to the side jamb. This window is hung by a counterbalance and held at a desired position. The counterbalance is provided with a coiled torsion spring which counterbalances with the window sash, and the torsion force of the torsion spring can be adjusted by an adjusting means. The adjusting means is provided with an adjusting shaft for adjusting the torsion force of the torsion spring, a braking member applying braking force to the adjusting shaft to prevent the rotation of the shaft, and a cam face for pushing the braking member against the adjusting shaft or for releasing it.

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