Abstract: An improvement that enhances hay rakes or forks of the type used in the cleaning of horse stables, includes a wall assembly having a rear wall and two spaced-apart side walls extending from the rear wall, that are positioned relative to a hay fork of conventional design so as to restrict unintended displacement of hay/manure mixtures over the peripheral edges of the hay fork. The bottom edge of the rear wall has a U-shaped indentation and includes a mounting flange of U-shaped cross section aligned with and extending from the indentation for straddling the handle of a conventional hay fork so that the wall assembly is retained and positioned properly relative to the fork portion of the hay fork. The rear wall and the side walls are formed with interlocking rails and slots so that the side walls may be readily attached to and detached from the rear wall by a sliding motion. An opening through the mounting flange receives a fastener to secure the wall assembly to the handle of a hay fork.

Abstract: A variable displacement vane pump comprising a durable rotor member having journal ends at each side of a larger diameter central vane section comprising vane slots having well areas which slidably-engage a mating vane element. The present vane pump comprises an outer cylindrical cam enclosure or spacer loaded against ring seal elements to support the faces of the seal elements closely spaced from the cam faces and reduce the actuation force required for adjustment of the displacement capacity of the pump. The cam faces include a biased segment seal in the high pressure discharge arc area. The seal elements include first fuel inlet passages in the inlet arc segment thereof, and fuel discharge passages in the discharge arc segment thereof, both of said passages being open to the vane slot extensions and to the cam chamber for the continuous supply and pressure discharge of fuel.

Abstract: A throttle valve actuator for an internal combustion engine includes a throttle body for defining at least one aperture or passageway extending therethrough to deliver a charge to a combustion chamber in communication with the aperture. At least one valve is mounted on a shaft for rotating within the aperture of the throttle body to control the internal combustion engine. A crank arm is connected to the shaft for driving the valve in rotation between a first position and a second position. A pliant cable is connected to the crank arm at an anchor point adjacent one end of the pliant cable. The pliant cable transmits a force to the crank arm to control rotation of the valve connected thereto.