51
Charles S Smith: Three-point hitch attachment with hay mover. Jacobson Price Holman & Stern, January 12, 1993: US05178505 (25 worldwide citation)

An attachment for the three-point hitch of a farm tractor including a generally vertically disposed, inverted U-shaped frame having outwardly extending lower ends connected to a pair of lower lift arms forming part of the three-point hitch of the tractor. The top portion of the frame is pivotally an ...


52
Steven D Gregory, Darin Willis: Apparatus and method for raising and supporting a building. Steven D Gregory, Warren B Kice, March 27, 1990: US04911580 (25 worldwide citation)

An apparatus and method for raising and supporting the foundation or slab of a building, in which a lifting arm assembly engages the lower surface of the foundation or slab and is secured thereto. A piling assembly is disposed in a support sleeve adjacent the lifting assembly and is engaged by a cla ...


53
Prahst Eugene D: Self-unloading vehicle. The Heil Co, Morsell Jr Arthur L, June 10, 1975: US3888366 (25 worldwide citation)

A flexible unloading belt normally covers the floor of a vehicle body such as a trailer body and extends back under a transverse roller at the rear of the trailer body. The rear end of the belt is deadended below the floor of the trailer. A drive roller set which is operated by an hydraulic ram is e ...


54
Martin Walch, Joel Wilhelm, Bernard Wattron, Rino Ermacora, Alain Guesdon: Automatic adjusting for lightening a machine working unit: method, device and machine. Kuhn, Oblon Spivak McClelland Maier & Neustadt P C, July 11, 2000: US06085501 (24 worldwide citation)

A method and device for automatically adjusting the lightening of a working unit (U) of a machine by use of a hydraulic ram (57) associated with a hydropneumatic accumulator (67). Use is made of a second hydraulic ram (58) of which the piston (53), which can move as far as a predetermined position ( ...


55
H Tracy Hall: Guided high pressure presses. Workman Nydegger & Seeley, April 28, 1998: US05744170 (24 worldwide citation)

High pressure presses for making diamonds and other hard, crystalline materials. The high pressure presses may contain varying numbers of moveable press members: e.g., a tetrahedral press will have four press members while a cubic press will have six press members. The high pressure presses are equi ...


56
Casey N Work: Brush clearing apparatus for a bulldozer blade. Huebner & Worrel, February 8, 1983: US04372063 (24 worldwide citation)

A brush clearing apparatus for a bulldozer blade having a rake pivotally mounted on the blade for movement about an axis along the upper edge of the blade between an operational position in which the rake engages the bulldozing face of the blade and a retracted position above the blade, a clamp pivo ...


57
James C Seal: Spreader/grader. Harvey B Jacobson, March 23, 1982: US04320988 (24 worldwide citation)

A spreader/grader is attachable to a three-point hitch associated with a tractor and includes a pair of curved cutting blades which are adjustable so as to control cutting depth. The cutting blades are mounted between a pair of side runners and include curved cutting edges to facilitate spreading or ...


58
Ruffing Charles: Lift device for small equipment. February 4, 1975: US3863890 (24 worldwide citation)

A compact, inexpensive lift device, capable of elevating small equipment (such as a snowmobile) to a convenient working height for servicing or repair, includes a mobile base frame, a lift frame carrying an equipment support platform, a linkage arrangement pivotally connecting the lift frame to the ...


59
Sannipoli Alfred L: Tank fabrication system. Lyco Manufacturing, May 22, 1973: US3734387 (24 worldwide citation)

A system and method of fabricating tanks comprising a plurality of carriages mounted on tracks and supporting tank sections and a chain drive mechanism for forcing the tanks into contacting relationship. Also included is a hydraulic ram for applying further contacting pressure so that intimate conta ...


60
Donald R May: Apparatus for lifting structures. Sandra L May, Hovey Williams Timmons & Collins, August 8, 1989: US04854782 (24 worldwide citation)

An apparatus for lifting structure is provided which includes a pier and a shoe attached to the base of a structure. A sleeve, which acts as a means to guide the shoe and support the shoe on the pier, is placed on the pier and is adapted to mate with the shoe. In order to lift the structure, a lift ...