Strip bending
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United States of America Patent
Stats
-
Oct 7, 1986
Grant Date -
N/A
app pub date -
Nov 12, 1985
filing date -
Nov 16, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A strip metal bending machine for bending formed strip material having for example an 'I' section or a 'U' section, said machine comprising a plurality of rolls arranged to act on the strip along a roll path so as to bend the strip, a first roll being provided with a pair of restraining means, each restraining means located either side of the roll path so that the strip is enclosed at a bending point between the restraining means and a contact surface of said first roll, said restraining means acting on the strip in a direction substantially at right angles to the direction of action of said contact surface of said first roll, means enabling continuous restraining adjustment of one restraining means relative the other of the pair during rolling action and control means for controlling said adjustment means. Such a machine enables material to be bent in a single pass with minimal or no twisting.
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