Cutting by use of rotating axially moving tool – With work-engaging structure other than tool or tool-support – With means actuated by work to release tool from fixed...
Patent
1986-05-16
1988-04-26
Weidenfeld, Gil
Cutting by use of rotating axially moving tool
With work-engaging structure other than tool or tool-support
With means actuated by work to release tool from fixed...
408154, 408158, 10111, 10123R, B23B 3900, B23G 100
Patent
active
047401184
ABSTRACT:
A self-opening diestock which is characterized by the fact that it comprises a rotating operating part which carries the thread-cutting dies that are capable of radial travel and have two grooves in which are accommodated the heads; means for exerting an outward thrust upon the cutting dies; means for restraining the cutting dies, where both said means are embodied onto the operating part; a flange which is capable of axial travel and carries the head of the means for restraining, and a stop piece attrached to the flange, which is capable of axial travel, and upon which the end of the pipe to be threaded rests.
REFERENCES:
patent: 1148510 (1915-08-01), Gates
patent: 1224795 (1917-05-01), Roelofson
patent: 1706104 (1929-03-01), Breitenstein
patent: 1936274 (1933-11-01), Shafer
patent: 2958877 (1960-11-01), Strickland
Howell Daniel W.
Super-Ego Tools, S.A.
Weidenfeld Gil
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