Method and apparatus for producing pipe from metal plate

Details Method and apparatus for producing pipe from metal plate Method and apparatus for producing pipe from metal plate

2006-02-28

2006-02-28

Jones, David B. (Department: 3725)

Metal deforming

By relatively movable offset tool-faces

With tool motion in fixed path

C072S389200, C072S466800, C072S466900

Reexamination Certificate

active

07004005

ABSTRACT:
A bending press for bending metal plates for the production of large diameter pipe has an articulation for the upper die member which reduces bending moments as applied to the bending sword or ram. The articulation can be between the upper die and the foot of the bending sword and a second articulation can be provided between the bending sword and the head of it affixed to the head of the press.

REFERENCES:
patent: 1914979 (1933-06-01), Pueschel
patent: 2562565 (1951-07-01), Merk
patent: 2763924 (1956-09-01), Bellometti
patent: 3777543 (1973-12-01), Kokkola et al.
patent: 4818210 (1989-04-01), Van Dijk et al.
patent: 5272904 (1993-12-01), Keumholz

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