Abstract: A power hitch has first and second frame elements interconnected for movement relative to each other about a vertical pivot axis. The first frame element is adapted for connection to a vehicle in a manner placing the pivot axis is to the rear of the vehicle. The second frame element is adapted for detachable connection to an implement to be towed behind the vehicle. The second frame element has a central axis extending rearwardly from the pivot axis. Extensible actuators on opposite sides of the central axis are pivotally connected at opposite ends respectively to each frame element. A suitable control system is employed to extend either one of the actuators while simultaneously retracting the other actuator in order to forcibly pivot the second frame element and the implement connected thereto about the pivot axis.

Abstract: A foldable snow compactor has a center pan with a pair of operatively positioned wings extending from the ends thereof. The wings are mounted for pivotal movement about axes fixed in relation to the center pan. Single hydraulic piston-cylinder units are employed to pivot the wings through arcs of approximately 180.degree. between their operative extended positions and inoperative positions located rearwardly of the center pan and substantially entirely within the width dimension thereof.

Abstract: An apparatus for detachably connecting a tool component to a frame component which is in turn adapted to be adjustably mounted on a vehicle. One of the components is provided with notched members for receiving engagement members on the other component. Contact members on one component are arranged to compressively engage resiliently compressible pads on the other component during entry of the engagement members into the notched members.

Abstract: A blade assembly for a tractor or other like vehicle of the type adapted for movement over snow covered terrain, having a horizontally extending first blade with second blades mounted at the opposite ends thereof for pivotal movement about vertical axes. Top plates are fixed relative to and extend forwardly from the first and second blades. The second blades are pivotally adjustable between open positions extending angularly outwardly from the first blade, and closed positions extending angularly inwardly from the first blade to cooperate therewith in defining an enclosure. The enclosure has a bottom opening defined by the lower edges of the blades, and a top opening which is smaller than the bottom opening and which is defined at least in part by the top plates.

Abstract: This invention is directed to an apparatus for compacting snow for skiing and snowmobiling. It includes an elongated snow compacting member with means which permit its ends to move upwardly and downwardly so that when one end contacts an elevated snow surface that end automatically moves upwardly to substantially equalize the p.s.i. exerted by the snow compacting member against the snow which is being compacted. It also includes snow compacting wings which extend outwardly from and are pivotally secured to the central snow compacting section of the snow compactor and power means for rotating the wings upwardly. The outer ends of the wings are secured to the inner ends by shear bolts or pins so that when an outer end contacts a rigid object it falls away and is not damaged. Means is provided for adjusting the angle of attack of the bottom wall of the snow compacting element to the surface of the snow to vary the pressure exerted upon it.