Tool for forming internal threads

Details Tool for forming internal threads Tool for forming internal threads

1975-02-06

1976-02-17

Larson, Lowell A.

Metal deforming

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

During rotation of work

72120, B21H 308

Patent

active

039383741

ABSTRACT:
The invention provides a tool for forming threads or grooves on the internal surface of a pipe.

REFERENCES:
patent: 1717720 (1929-06-01), Martin et al.
patent: 1798742 (1931-03-01), Kellogg
patent: 3587272 (1971-06-01), Zmuda
patent: 3681802 (1972-08-01), Youtz et al.

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