| 摘要 |
An apparatus is provided for the continuous manufacture of shingles, for producing a plurality of laminated shingles. The apparatus includes a means for continuously advancing a fibrous sheet, a means for waterproofing the sheet, a means for adhering granules to an upper surface of the sheet, and a means for cutting and separating from the sheet at least three indefinitely long strips to form a wide elongate strip and two or more narrower elongate strips, a means for positioning and adhering one of the narrower strips beneath and upon the wide sheet with longitudinally aligned center lines and a means for positioning and adhering a second of the narrower strips beneath and upon the first narrower strip, with aligned center lines, with the second narrower strip below the first narrower strip, optional means for positioning and adhering other narrower strips underneath and upon the last previously adhered narrower strip with aligned center lines, to make a multi-layered composite section of adhered narrower strips and the wide strip. Means are also provided for making an elongate cut across and generally along the center line to form a repeated pattern of interdigitated multi-layered tabs and a means for cutting elongate composites into preset lengths to form a plurality of shingles.
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