Retractable pressure die

Details Retractable pressure die Retractable pressure die

1977-10-03

1978-11-21

Combs, E. M.

Metal deforming

By deflecting successively-presented portions of work during...

By use of work-contacting wiper and moving, work-holding form

72155, B21D 704

Patent

active

041260309

ABSTRACT:
In a machine for draw bending pipe, a long pressure die that moves with the pipe during the bend is provided with a retractable rear section. Both sections are used for a large degree of bend but when a bend of lesser degree is made near the end of the pipe, interference between the pipe grasping chuck and the long pressure die is avoided by retracting the rear pressure die section.

REFERENCES:
patent: 655259 (1900-08-01), Miller
patent: 1662428 (1928-03-01), Lowe
patent: 1775761 (1930-09-01), Harvey et al.
patent: 1848753 (1932-03-01), Spate et al.
patent: 2777500 (1957-01-01), Ekholm et al.
patent: 2974706 (1961-03-01), DeWitt
patent: 3261193 (1966-07-01), Van Harten
patent: 3287952 (1966-11-01), Van Harten
patent: 3352136 (1967-11-01), Clarke
patent: 3410125 (1968-11-01), Schmidt
patent: 4009601 (1977-03-01), Shimizu
patent: 4063441 (1977-12-01), Eaton
patent: 4078411 (1978-03-01), Eaton

Affiliated with

Also associated with

Rating

Retractable pressure die does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Retractable pressure die, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Retractable pressure die will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2044472