Internal alignment clamp

Details Internal alignment clamp Internal alignment clamp

1984-05-14

1987-11-24

Schmidt, Frederick R.

Metal fusion bonding

With means to handle work or product

Including means to orient work or position work portion...

228 445, 269 481, B23K 3704

Patent

active

047082798

ABSTRACT:
An internal alignment clamp for use in welding together the confronting ends of a pair of end-to-end pipe lengths comprises a body having an arcuate segment at the opposite ends of which are pivoted a pair of force applying arms movable into and out of engagement with the inner surfaces of such pipes. Mounted on the clamp body is a radially adjustable carriage equipped with a pair of driveable wheels that support the clamp for movement longitudinally of the pipes. An extensible and retractable ram is connected to the force applying arms and to the carriage and is operable to extend the arms and retract the driveable wheels, thereby enabling the arcuate segment of the clamp and the arms to bear against the inner surfaces of the pipes and conform their configurations. An insert is provided to span any gap which exists between the confronting ends of the arms in their expanded positions.

REFERENCES:
patent: 2878770 (1959-03-01), Work et al.
patent: 3197195 (1965-07-01), Work et al.

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