B - Operations – Transporting – 26 – F
Patent
B - Operations, Transporting
26
F
B26F 3/00 (2006.01) B32B 3/10 (2006.01)
Patent
CA 2181505
An apparatus and process for cutting a continuous linear web of composition roofing material includes water knives that cut the web into strips. A first linear incision is cut in the web with a water knife to cut the web into two strips having linear edges as the web as it is transported past the knife. Adhesive is applied to a portion of one surface of one strip of the web. The strips are then spatially aligned and laminated. The laminated strip is then cut along a non- linear path by a water knife that is movable relative to the moving strip, and which moves through a predetermined pattern at a controlled rate. A controller continuously determines the rate of web movement past the movable water knife, and in response to the determined rate of web movement, controls the rate at which the water knife moves relative to the strip. The system cuts a desired serrated pattern in the laminated strips to produce two continuous laminated strips, each having one linear edge and one serrated edge. A knife cuts the linear laminated strips into desired lengths for shingles.
Herbert Malarkey Roofing Company
Oyen Wiggs Green & Mutala
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