Seal arrangement for a separating mechamism

摘要

A movable finger separating unit (e.g. for separating root crops from stones during harvesting) wherein the separating finger is disposed outside a casing which houses an operating mechanism for the finger. Motion is transmitted from the operating mechanism to the finger via an axially rotatable shaft extending through the casing via a rotary seal arrangement so that the casing may be sealed to protect the operating means against dirt.