Safety device for sash windows

Details Safety device for sash windows Safety device for sash windows

1988-09-22

1990-04-10

Dorner, Kenneth J.

Movable or removable closures

With safety brake or catch

49445, E05D 1300

Patent

active

049148621

ABSTRACT:
A spring loaded safety member is pivotally mounted against a coil spring seated within the channel of a standard pulley and spring system which has been moved slightly in the channel. The safety member comprises sharp teeth and is normally retracted in the channel with a curved portion around a pin extending laterally therethrough. Upon failure of the cord or spring of the standard window system the safety member suddently pivots outwardly under spring pressure to engage the inner wall of the window frame.

REFERENCES:
patent: 2095695 (1937-10-01), Greegor
patent: 3055044 (1962-09-01), Dinsmore

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