Work holders – Plural holders to hold workpieces relative to each other – Workpieces parallel to each other
Patent
1988-05-25
1990-06-19
Watson, Robert C.
Work holders
Plural holders to hold workpieces relative to each other
Workpieces parallel to each other
269130, 292815, B25B 120
Patent
active
049346733
ABSTRACT:
An apparatus for seating and tightening clamps around joints between tubular sections comprises an elongate flexible member such as a chain for extending around a clamp positioned over a joint, the member having rollers spaced along its length, and a tightening device for applying tension to the member to tighten it around the clamp so that the rollers roll around the surface of the clamp and apply a radial force to the clamp.
REFERENCES:
patent: 442934 (1890-12-01), Ackerman
patent: 2379014 (1945-06-01), Lowe
patent: 2585343 (1952-02-01), Newlon
patent: 2968978 (1961-01-01), Wheeler
patent: 3586057 (1971-06-01), Lambert
Carroll Leo R.
General Dynamics Corp. Pomona Division
Martin Neil F.
Watson Robert C.
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