Abstract: A window positioner adapted to hold a window in an open position includes a frictional engaging member having novel biasing means and bias releasing means whereby as the window is moved upwardly, the frictional force is minimized to allow ease of movement of the window. The frictional force is sufficient to maintain and hold the window in a desired open position. The positioner includes a pair of cooperative engaging members adapted to frictionally engage a rail formed on the window jamb. One of the members is movable relative to the other to shift toward and frictionally engage the rail when the window is in open position. The novel biasing means includes an elongated tapered channel formed in a housing supporting the members which operates to shift the engaging means toward and away from the rail with movement of the window sash between raised and lowered positions.

Abstract: An apparatus to vary the degree which a door may be opened and held in place. An operating arm of the door holder is pivotably mounted to a slide which is mounted within a slide channel. Holding means releasably hold the slide at a fixed position within the slide channel. The other end of the operating arm is pivotably mounted to an adjustable bracket. The bracket is seated within a track and is capable of adjustable movement along the track. Fastening means secure the bracket with respect to the track in a plurality of fixed positions.