Cutting – Other than completely through work thickness or through work... – Splitting
Patent
1987-07-01
1988-07-05
Yost, Frank T.
Cutting
Other than completely through work thickness or through work...
Splitting
83 16, 83171, 83428, 83433, 83875, B26F 312
Patent
active
047546786
ABSTRACT:
A foam board insulation shaping system and method for hot wire shaping insulation board to fit roof contours, wherein a frame mounts a transversely disposed, generally horizontal, linear wire and conveying rolls move the foam board along a longitudinal pathway past the wire, which melts the plastic as the board moves. Wire clamps secure the ends of the wire and are mounted for vertical movement, one of the wire clamps being also mounted for transverse movement relative to the frame. Yieldable mechanism associated with one of the clamps provides for expansion of the wire linearly with heating, while maintaining it under tension. A motor drives the clamps to move them vertically in unison at a predetermined speed with relation to the speed of the board. A series of transversely spaced, generally U-shaped hot wires are provided for forming grooves in the upper surface of boards, and means are provided for electrically energizing the linear wire and the U-shaped wires.
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patent: 4606254 (1986-08-01), Schmalz
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patent: 4683792 (1987-08-01), Demont
Nichols Wayne G.
Woodruff Allen B.
Kay-Jay Machines, Inc.
Yost Frank T.
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