Thread chaser tool for contiguous straight and tapered thread ru

Details Thread chaser tool for contiguous straight and tapered thread ru Thread chaser tool for contiguous straight and tapered thread ru

1976-11-29

1978-10-03

Hinson, Harrison L.

Cutters, for shaping

Freely movable cutting edge

407 66, 407120, B23G 100, B26D 112

Patent

active

041175638

ABSTRACT:
A thread chaser tool with cutting edge defined by two symetrical points. The tip radii of the two points are spaced apart slightly less than the pitch of a thread to be cut. The thread form is generated by the inside flanks of each point and a crestforming radius there between. Both points cooperate in forming the long flanks of either male or female tapered threads, and both points form straight threads having two roots.

REFERENCES:
patent: RE3940 (1870-04-01), Pierce
patent: 21641 (1858-09-01), Kendall et al.
patent: 490638 (1893-01-01), Clough
patent: 1428075 (1922-09-01), Breckenridge
patent: 1737739 (1929-12-01), Stenman
patent: 1740604 (1929-12-01), Kienzl
patent: 2534230 (1950-12-01), Chandler

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