(under subclass 71) Apparatus in which the movable separating surface is so formed that the intersection of said surface and a reference plane disposed perpendicularly to the direction of draft of the apparatus forms a line which is disposed at different heights above the ground at different portions along the length of said line.
(1) Note. The usual purpose of the transverse curve or inclination is to bias the recovered objects to roll laterally to a desired discharge point.
