Work holders – Plural holders to hold workpieces relative to each other – Workpieces parallel to each other
Patent
1985-09-06
1987-05-19
Watson, Robert C.
Work holders
Plural holders to hold workpieces relative to each other
Workpieces parallel to each other
269233, 269287, B25B 120
Patent
active
046661387
ABSTRACT:
A pipe clamp for use in welding together a pair of pipe sections having confronting ends adjacent one another comprises arcuate jaws together forming a generally circular body of such diameter as to encircle the pipes with adjacent ends of the jaws spaced by a gap. A force generating jack is carried by one of the jaws adjacent the gap and has a radially reciprocable member to which is secured one end of a flexible force transmitting member which spans the gap and has its other end secured to the other jaw. The force transmitting member is trained around a force conversion member carried by the one jaw which converts radial force to circumferential force enabling the gap to be closed. The jaws are provided with cooperable guides to maintain those ends of the jaws adjacent the gap in circumferential alignment.
REFERENCES:
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patent: 3925854 (1975-12-01), McFadden
patent: 3944202 (1976-03-01), Dearman
patent: 4356615 (1982-11-01), Dearman
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