Working tool for pipe wall

Details Working tool for pipe wall Working tool for pipe wall

1997-03-12

1998-07-21

Larson, Lowell A.

Metal deforming

By use of tool acting during relative rotation between tool...

Spherical tool

B21C 3720

Patent

active

057821232

ABSTRACT:
The invention relates to a working tool for working a pipe wall, so that a grooving is created on the inner wall of the pipe. The grooving is carried out by means of a rotating working tool of a grooving machine, and according to the invention, the structure of said tool brings about an efficient use and replacing of the balls provided in the tool for working the pipe to be grooved; it also enables the replacing of the balls without replacing the whole tool.

REFERENCES:
patent: 600681 (1898-03-01), Sharp
patent: 1143101 (1915-06-01), Brinkman

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