When you turn the handle, the operator moves the crank arm and the split arm operator. The split arm operator then opens the ...

Why the Included Venting Supplies Don’t Work in a Casement Window Window ... of the window crank, and the angle needed for the hose. Once everything was cut out, I inserted the output end ...

When opening casement windows, the operator twists a crank that also serves as a lock ... sash windows have a higher tendency to let air in or out, leading to increased heating or cooling bills ...