A device to support the weight of a sash on a vertical sliding window Balansveer, Patentveer, Schuifraamveer
A system of weights, cords and/or coiled springs which assist in raising double-hung sash and tend to keep the sash in any placed position by counterbalancing the weight of the sash.
a window component used to raise double hung sashes and keep the sashes any placed position
A coiled spring or spiral system integrated into the jamb liners that allows double hung or single hung sashes to open and close. Sash balances also allow the sashes to remain open in varied positions.
A device, usually operated by a spring and designed to hold a single hung window vent up and in place
A device, usually operated by a spring or tensioned weatherstripping designed to counterbalance double-hung window sash.
A spring device used to counterbalance the weight of a window sash or other vertical sliding part.
Counterbalance for the weight of the window sash, which is usually accomplished by the use of sash weights, making it easier to open and close or to remain in a certain position.
A spring-loaded device for counterbalancing the weight of a vertical sliding sash as on a double-hung window.