Roller leveler
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United States of America Patent
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Feb 2, 2016
Grant Date -
May 28, 2015
app pub date -
Feb 3, 2015
filing date -
Jan 29, 2010
priority date (Note) -
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Abstract
A roller leveler is provided having a substantially uniform pitch of leveling rolls arranged in a zigzag manner. The roller leveler has a first roll group with first leveling rolls at a pitch “P1”, a second roll group with second leveling rolls at the pitch “P1”, a first retract mechanism for retracting the middle first leveling rolls, and second retract mechanisms for retracting pairs of end second leveling rolls. The second roll group also has third leveling rolls at the pitch “P1” with respect to the outermost second leveling rolls.
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