Sash balance

Sash balance

In double-hung windows, a device usually operated with a spring, designed to counterbalance the window sash without the use of weights, pulleys, and cords.

sash balance

A spring-loaded device, usually a spring balance or tape balance; used to counterbalance a sash in a double-hung window; eliminates the need for sash weights, sash cords, and pulleys.
References in periodicals archive ?
Reset the tension on the sash balance by reversing the earlier steps.
J Banks, which was formed in Willen-hall in 1846, is combining traditional design ingenuity with modern day problem solving skills to launch its East-Just range of spiral sash balances for use in vertical sliding sash windows.