Work holders – Operator supported – Handle manipulation for jaw actuation
Patent
1980-05-09
1983-04-05
Watson, Robert C.
Work holders
Operator supported
Handle manipulation for jaw actuation
269 43, 269228, 269209, 269203, 269258, B23K 3704
Patent
active
043789374
ABSTRACT:
A pipe welder's aligning tool for use in joining two pipe members end to end comprises a clamp having a pair of jaws movable toward and away from one another so as separably to clamp one pipe member adjacent its end. The jaws carry supports of such length as to extend beyond the one end of the clamped pipe to provide support for the confronting end of a second pipe member that is to be joined to the clamped pipe. To enable the supports to function properly regardless of the diameters of the pipes that are to be joined, the supports are adjustable relatively to their associated jaws. One of the jaws may be mounted on an elongate member which is adjustable to enable the tool to be used on pipes of greatly differing diameters.
REFERENCES:
patent: 1323127 (1919-11-01), Trevthardt
patent: 2105954 (1938-01-01), Rippe
patent: 2108077 (1938-02-01), Robinson
patent: 2374899 (1945-05-01), Sasgen
patent: 2641149 (1953-06-01), Petersen
patent: 2836139 (1958-05-01), Holmberg
patent: 3290971 (1966-12-01), Belval
patent: 3619891 (1971-11-01), Harrison
patent: 3711920 (1973-01-01), Simmons
patent: 3909889 (1975-10-01), Emerson
patent: 3952936 (1976-04-01), Dearman
patent: 4195828 (1980-04-01), Peterson
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