Method and apparatus for making a thick-appearing shingle
AssigneeCertainTeed Corporation
InventorsHusnu M. Kalkanoglu, Kermit E. Stahl, Joseph Quaranta
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Abstract
A shingle and a method of and apparatus for making the shingle is provided, whereby patches of preselected granules or combinations of granules are provided, separated by transverse areas of different, preferably darker granules, having slots centrally thereof, to yield the appearance of multi-tab shingles that are thicker than they actually are, with transverse shadow lines. A longitudinal shadow line is optionally provided, along the upper and/or lower portion of the exposed tab.
Claims24
A method of making a shingle having a butt portion and a tab portion, comprising the steps of
- (a) providing a base web of reinforcing material impregnated with and coated with an adhesive material as a hardenable coating to an upper and lower surface thereof,
- (b) conveying the impregnated reinforcing material in a longitudinal direction;
- (c) applying granules in longitudinal strips onto portions of the hardenable coating on the upper surface as the impregnated and coated reinforcing material is moved longitudinally, to define the butt portion of a continuous strip of shingle material where the granules are applied and the tab portion where the granules are not applied;
- (d) applying granules of a first shading, onto the hardenable coating on the upper surface in spaced-apart transverse first areas in the tab portion of the continuous strip of shingle material, to cover said transverse first areas;
- (e) cutting the continuous strip of shingle material into a plurality of shingles;
- and
- (f) transversely cutting slots of size in said transverse first areas, so that each said slot is narrower in the longitudinal direction than the transverse area in which it is located, leaving granules of said first areas spaced apart on each side of said slot.
Apparatus for making a shingle having a butt portion and a tab portion, comprising:
- (a) means for providing a base web of reinforcing material impregnated with and coated with an adhesive material as a hardenable coating to an upper and lower surface;
- (b) means for conveying the impregnated reinforcing material in a longitudinal direction;
- (c) means for applying granules in longitudinal strips onto portions of the hardenable coating on the upper surface as the impregnated and coated reinforcing material is moved longitudinally, to define the butt portion of a continuous strip of shingle material where the granules are applied and the tab portion where the granules are not applied;
- (d) means for applying granules of a first shading, onto the hardenable coating on the upper surface in spaced-apart transverse first areas in the tab portion of the continuous strip of shingle material, to cover said transverse first areas;
- (e) means for cutting the continuous strip of shingle material into a plurality of shingles;
- and
- (f) means for transversely cutting slots of size in said transverse first areas, so that each said slot is narrower in the longitudinal direction than the transverse area in which it is located, leaving granules of said first areas spaced apart on each side of said slot.
Dependencies are inferred from the claim text.