Plate levelling machine

Details Plate levelling machine Plate levelling machine

1985-08-16

1987-01-06

Crane, Daniel C.

Metal deforming

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

By use of deflected arranged to provide longitudinally...

B21D 102

Patent

active

046336974

ABSTRACT:
A plate levelling machine includes a first group of small rolls and a second group of larger rolls connected in tandem with the rolls of the first group. The upper rolls of both groups are supported and arranged so that each group can be displaced away from their associated lower rolls while maintaining the rolls of the other group in an operative position. When light gauge plates are to be levelled, the larger upper rolls are displaced to an inactive position and the material is levelled using the small rolls. For heavier gauge material, the small rolls are moved out of position and the larger rolls are employed.

REFERENCES:
patent: 2132426 (1938-10-01), Maussnest
patent: 2578820 (1951-12-01), Mayer
patent: 2852065 (1958-09-01), Peterson
patent: 2944585 (1960-07-01), Ungerer
patent: 3260093 (1966-07-01), Polakowski
patent: 3605470 (1971-09-01), Polakowski
patent: 3606784 (1971-09-01), Schluter
patent: 3648504 (1972-03-01), Schoffmann
patent: 3701274 (1972-10-01), Roesch
patent: 3834202 (1974-09-01), Kawaguchi et al.

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