Method of cutting threads

Details Method of cutting threads Method of cutting threads

1989-08-16

1990-11-06

Combs, E. Michael

Cutting by use of rotating axially moving tool

Processes

Bit detachable

10 1B, B23G 100, B23G 500

Patent

active

049681907

ABSTRACT:
A method of threading or rethreading a member by the use of a die made up of a plurality of complementary separable interfitting parts held together by a tensional element disposed around the exterior surface thereof which in use are separated from one another under the tension of an abrasing element thereby enabling the die to be passed over the member whereat the separating force is relaxed permitting the parts to re-engage thereon. The die is then turned to effect the cutting of the threads.

REFERENCES:
patent: 162983 (1875-05-01), Wells
patent: 1360297 (1920-11-01), Jensen et al.
patent: 1589541 (1926-06-01), Miller
patent: 1664023 (1953-12-01), Mugford
patent: 1803888 (1931-05-01), Basola et al.
patent: 1915588 (1933-06-01), Arrington
patent: 3078743 (1963-02-01), Wolfe
patent: 4572032 (1986-02-01), Kinzler

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