The window sash could be the movable portion that holds the glass panes, whereas the window frame will be the stationary component that encases the sash and anchors it into the wall. These components are generally concealed within the window frame, connected by sash cords jogging in excess of pulleys. https://josuexkbkq.life3dblog.com/34763514/the-fact-about-sash-windows-that-no-one-is-suggesting