Poly-pipe fusion machine

Details Poly-pipe fusion machine Poly-pipe fusion machine

1984-02-24

1985-09-24

Schmidt, Frederick R.

Work holders

Plural holders to hold workpieces relative to each other

Workpieces normal to each other

269127, 269155, 269254CS, 269208, 269268, B25B 120

Patent

active

045428921

ABSTRACT:
A machine for use in the fusion fitting of a branch, T- or saddle junction to a pipe, comprises a first clamp for holding pipe and a second clamp for holding the fitting in the correct orientation to the pipe. A manually-operated sliding plunger arrangement allows the second clamp to be moved towards or away from the first clamp by way of a manually operated device. The second clamp can be locked against retraction from any one of a plurality of positions relative to the first clamp, and is adapted to be loaded towards the first clamp in its locked positions during the fusion process when a fitting engages a pipe or a heating tool is held between a pipe and fitting. The shaft which controls the movement of the second clamp has a pivoting extension or plunger terminated by a handle, which can be folded upward. Pins mounted at selected intervals on the plunger cooperate with a loading plate during the downward movement of the plunger to urge the second clamp either toward or away from the first clamp.

REFERENCES:
patent: 3966528 (1976-06-01), Christie

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