Shingle.

Application filed August 22,1912. Serial No. 719,502.

To all whom it may concern:

Be it known that I, Charles S. Bird, a citizen of the United States, residing at the town of Walpole, in the county of Norfolk 5 and State of Massachusetts, have invented certain new and useful Improvements in Shingles, of which the following is a specification.

The present invention pertains to an im10 proved shingle, the same being composed of waterproof paper and so formed that it may be laid in the same manner as the ordinary shingle.

The construction is such that the butt end 15 of the shingle is given the maximum thickness, while the opposite end has the minimum thickness, the construction also being such that a minimum amount of material is used for the surface to be covered.

The invention is shown in the annexed drawings, wherein:

Figure 1 is a perspective view of one form of the shingle as viewed from the under side; Fig. 2 a similar view as seen from the 25 upper face; Fig. 3 a like view of a modified form; and Fig. 4, an edge view of a further modified form..

The shingle in the form illustrated and having reference first to Figs. 1 and 2, is 30 composed of two pieces of paper, a relatively long piece folded upon itself and comprising a long upper section 1 and a shorter under section 2, and a second, piece 3 lying between and embraced by sections. 1 35 and 2. This produces a shingle having in its butt portion three plies, the end of the butt, designated by 4, presenting an unbroken surface by reason of the fact that it is produced by the folding of a single sheet.

0 The lamination of the main body of the shingle, which is the part that is exposed to the weather, produces a structure which is relatively stiff and which, by reason of the lamination, will not warp. The butt being 45 stiff will not curl or turn up under the action of the wind, and, by reason of the smooth unbroken end, there is no chance of the plies becoming separated either by the action of the wind, or the entrance of water 50 between the plies at the butt end.

The paper of which the shingle is formed is preferably waterproofed, and the various plies are secured together by a suitable cement, preferably asphaltum.

The outer faces of the sections 1 and 2 will 55 preferably, though not necessarily, be treated to a coating of sand or grit, which will be pressed or rolled into the surface of the shingle to a slight extent.

In Fig. 3 a slightly modified form is illus- 90 trated, the inner or embraced i*y, designated by 3^a, being made shorter than the underlying section or ply 2^a, said ply 2^a and the outer long section l^a being of substantially the same proportions as shown in the 65 other form. The same general effect is produced by the simple variation disclosed in Fig. 4', wherein the intermediate or embraced ply is made longer than the underlying ply. These later constructions give, 70 to the shingle a more gradual taper from the butt toward the opposite end than obtains with the form first described. In all of them, however, the laminated butt is_ present, and the end of the butt is produced 7G by folding a sheet so as to present an unbroken end.

In Fig. 5 a shingle is disclosed produced from a single sheet of paper, the sheet being folded directly back upon itself at the butt 8® end.

It will be understood that while but three plies have been shown in Figs. 1 to 4 inclusive, a greater number may be employed; so, too, by the use of proper pigments or 85 paper stock any desired shade or color may be imparted to the shingle.