Machine and method for forming arched roof vertical wall self supporting metal buildings
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United States of America Patent
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Apr 8, 2003
Grant Date -
N/A
app pub date -
Dec 17, 1998
filing date -
Apr 22, 1992
priority date (Note) -
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status (Latency Note)
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Abstract
A mobile metal building forming machine forms panels of predetermined length from a coil of flat metal and then the formed panels are continuously crimped on their side edges for strength and are selectively curved by crimping the bottom of the panel. The crimping and curvature are automatically controlled so that building panels with vertical walls and an arched roof may be formed. A moveable crimping roll is automatically portioned to control the curvature and the roll is chain driven so that it may be moved without affecting its rotational drive.
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