(under the class definition) Apparatus comprising means associated with the working member for exerting a force on the working member, or a major portion thereof, in a direction transverse to the longitudinal axis of the working member to oppose a transverse force exerted on the working member during the normal functioning of the apparatus of which the working member is a part.
(1) Note. The transverse force exerted on the working member due to the normal functioning of the apparatus is usually that due to a piston rod pivoted to the working member, the weight of the working member when operating in a horizontal cylinder or the force exerted by burning gases on a sloping face of the working member.
