Material or article handling – Elevator or hoist and loading or unloading means therefor – Convertible attachment
Patent
1984-07-27
1986-07-15
Spar, Robert J.
Material or article handling
Elevator or hoist and loading or unloading means therefor
Convertible attachment
414724, 414912, 414910, B66F 912
Patent
active
046003541
ABSTRACT:
A multiple-use utility jack and tire changing tool which includes a base framework which is movable along the ground for application of a number of different attachment tools. An elongated mast extends upwardly from the base framework and has a masthead which is movable along the mast. The masthead has supports positioned along its vertical length for selective height-wise placement of attachments. These attachments include but are not limited to an assembly for rotatably supporting a vehicle tire, a fork, a fork with a V-bar addition, a boom, and an elbow lift. The assembly for rotatably supporting a vehicle tire includes an outwardly extending arm having at its end two tandem wheels which are aligned in the same plane and have rotational axes parallel to one another in a horizontal plane. The tandem wheels engage the top and side of the rim of the vehicle tire and cause the vehicle tire to be lifted when the masthead is lifted. When lifted, the tire may be rotated because it is supported only by the rotatable tandem wheels. The masthead is lifted by a jack. Additionally, the assembly for rotatably supporting a vehicle tire can be used separately from the base framework by attaching it to a conventional front end loader or forklift of an external motive power source.
REFERENCES:
patent: 1591193 (1926-07-01), Weaver
patent: 2217898 (1940-10-01), Gemmill
patent: 2878703 (1959-03-01), Easton
patent: 3705658 (1972-12-01), Harris
patent: 4022341 (1977-05-01), Lindquist
patent: 4242035 (1980-12-01), Hornstein
Kelch Eugene W.
Niewald Jack L.
Millman Stuart J.
Spar Robert J.
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