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US 4,301,587 AGranted
Machine for closing standing seams of sheet metal roofing
OwnerThomas J. Boydinventor
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OwnerThomas J. Boydinventor
Estimating the term…
Suspended from a carriage that straddles a standing seam, in which the upper portions of adjoining upright flanges are interlocked, is a vise having a pair of normally spaced jaws with a short length of the standing seam between them. One of the jaws is rigidly connected to the carriage, but the other jaw can be moved toward and away from the first jaw by a fluid pressure cylinder supported by the carriage. The movable jaw is moved toward the other jaw periodically to compress and close the interlocked upper portions of the seam. Each time the jaws are separated the carriage can be moved along the seam in order to close an adjoining length of the seam. Preferably, the carriage is moved along the seam automatically by means of motor-driven rollers that frictionally engage the standing seam. The rollers are rotated to move the carriage only while the vise is released from the seam.
A machine for closing and sealing the interlocked upper portions of double-lock standing seams of sheet metal roofing, comprising a carriage adapted to straddle a standing seam, a vise suspended from the carriage and having a pair of normally spaced cooperating jaws adapted to receive a length of the standing seam between them, means connecting one of the jaws to the carriage for movement in a straight line toward and away from the other jaw, and a fluid pressure cylinder supported by the carriage for periodically moving said movable jaw toward the other jaw to compress and close said interlocked upper portions of the seam, the carriage being adapted to be moved a predetermined distance along the seam after each closing operation to close and seal the seam throughout its length.
A machine for closing and sealing the interlocked upper portions of double-lock standing seams of sheet metal roofing, comprising a carriage adapted to straddle a standing seam, a vise suspended from the carriage and having a pair of normally spaced cooperating jaws adapted to receive a length of the standing seam between them, a fluid pressure cylinder supported by the carriage for periodically closing the vise to compress and close said interlocked upper portions of the seam, a pair of opposed rollers suspended from said carriage on vertical axes at one end of said jaws and normally spaced apart for receiving the standing seam between them, means for moving one roller laterally toward the other one to tightly engage the seam between them, and means for driving one of said rollers intermittently to move the carriage a predetermined distance along the seam while said vise is open, whereby to close and seal the seam throughout its length.
Dependencies are inferred from the claim text.