Spring balance adjustment

Details Spring balance adjustment Spring balance adjustment

2006-08-22

2006-08-22

Redman, Jerry (Department: 3634)

Movable or removable closures

With means mounting closure for reciprocation

With counterbalance

C049S447000

Reexamination Certificate

active

07093392

ABSTRACT:
In sash windows where the sashes are supported on window units which run in channels in a window frame, and the window units are suspended from spring balances, the shoes have easily accessible mechanisms for adjusting the tension in the spring balances, without demounting the sashes and without separating the spring balances from the shoes. Adjustment is done by rotating an element in the shoes, at the bottom of the sash, with the sash pivoted out of the plane of the window. A tool is inserted in a socket to turn an element of the shoe exposed by the tilting of the sash, and the rotation of this element is transferred through 90° to vary the tension in the respective balance.

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