Manufacturing roofing shingles

Details Manufacturing roofing shingles Manufacturing roofing shingles

E - Fixed Constructions

04

D

E04D 1/12 (2006.01) B26D 11/00 (2006.01) B32B 38/04 (2006.01) B32B 38/10 (2006.01) E04D 1/26 (2006.01)

Patent

CA 2044773

A method and apparatus for manufacturing roofing shingles having tabs and cutouts comprises a cutting cylinder for engaging a membrane and cutting it into continuous strips, where the circumference of the cutting cylinder and the length of the shingle have a common factor other than the length of the shingle, and an endcut cylinder for cutting the continuous shingle membrane strips into discrete roofing shingles, so that the pattern of tabs and cutouts will repeat itself periodically.

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