Supports – Machinery support – Stand
Patent
1989-01-12
1992-02-11
Chin-Shue, Alvin C.
Supports
Machinery support
Stand
248439, 248129, B62B 302
Patent
active
050870130
ABSTRACT:
A foldable wheeled stand is provided for supporting a motor driven pipe threading machine during operation thereof, for transporting the machine from one location to another, and for storing the machine during periods of non-use. The stand includes an upper support portion on which the machine is mounted, and a scissors-type foldable leg assembly providing a lower support portion by which the upper support portion and threading machine can be elevated and lowered relative to an underlying support surface. Elevating and lowering is achieved through a crank actuated jackscrew arrangement. The lower support portion includes a pair of wheels, whereby the stand, when folded, can be pivoted relative to the wheels to an inclined angle at which the stand and the threading machine mounted thereon are supported by the wheels for movement along the underlying surface. Further, the lower support portion includes a pair of skids which, when the stand is folded, facilitate sliding of the stand and the reading machine mounted thereon upwardly or downwardly relative to a fixed edge or edges above the underlying surface such as would be defined for example by stairs, or the edge of the bed of a truck relative to which the stand and machine are to be loaded or unloaded.
REFERENCES:
patent: 312016 (1885-02-01), Price
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patent: 1300567 (1919-04-01), Brorby
patent: 1947874 (1934-02-01), Pealer
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patent: 4611823 (1986-09-01), Haas
The Ridge Tool Company, Catalog No. RT-165, May 1979, p. 24.
The Ridge Tool Company, Catalog No. RT-580, Oct. 1982, p. 40.
Gress Paul W.
Jansen John H.
Chin-Shue Alvin C.
Emerson Electric Co.
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