Abstract: A hydraulically actuated door for a large opening of a building comprises a door formed in two parts divided by a horizontal hinge line so that a lower part can fold up under the upper part in an open position of the door. The upper part carries two flanges one at each side which project outwardly from the front face of the door. A ram extends from the base of a door post upwardly to the flange so that an upward force from the ram pivots the door about a horizontal hinge line at the top of the door to an open position in which the door extends outwardly from the horizontal hinge line. A level mechanism including a push rod pushes the lower portion of the door in a folding action around the center hinge line of the door up under the upper portion of the door into the folded position.

Abstract: Apparatus for mixing and dispensing feed material particularly for cattle comprises a cylindrical drum which has an inlet in the form of a longitudinal slot along part of the length of the drum which is closable by doors pivoted on the drum. An outlet is formed by a plurality of openings arranged around the drum at a portion thereof spaced from the inlet opening. A sleeve around the drum can be moved to open and close the outlet openings. A belt wrapped around the drum catches material discharged from the drum and feeds is out to one side of the drum. The drum can be mounted upon a vehicle for transportation along a line of receptacles so that rotation of the drum discharges material into the receptacles. The drum is free from inner moving parts or bearings which contact the feed material.