US1580755A - Method of making shingles - Google Patents

Description

April 13 1926.

. A. MURRAY Filed March 14 April 13 1926.

J. A. MURRAY METHOD OF MAKING SHINGLES 1925 2 Sheets-Sheet 2 Filed March 14 Patented Apr. 13, 1926.

UNITED STATES JOSEPH A. MURRAY, 0]? YORK, PENNSYLVANIA.

METHOD OF MAKING SHINGLES.

Application filed March'M, 1925. Serial No. 15,533.

1'0 all whom it may concern:

Be it known that 1, Joshua! A. MURRAY,

a citizen of the United States, residing at York, in the county of York and State of Pennsylvania, have invented certain new and useful Improvements in Methods of Making Shingles of which the following is a specification, reference being had therein to the accompanying drawing.

My invention relates to new and useful improvements in a method of cutting shingles from a sheet or strip of material, the principal object of the invention residing in cutting the material in such a manner that there is an elimination of waste and forming the shingles of uniform shape and size whereby they may be readily packed or stacked or forming diiierent sets of shingles, the shingles of. each set being of uniform shape and size.

A. further object consists in so cutting the material that a plurality of rows of shingles will be provided, the ends of the shingles of certain of the rows extending beyond the ends of the shingles of other rows, to he grabbed or engaged by the grabbing or separating rolls of the cutting machine, the projecting ends of the shingles being. so positioned that when the grabbing or separating is taking place that there will be a uniform pull on the material and it will not be dis.

torted or unevenly pulled during its pa sage through the cutting machine.

Another object ofthe invention resides in so cutting the shingles from the sheet or strip of material as to leave a projection extending from one side edge'of the shingle, preferably intermediate the top and bottom edge thereof, that portion of the shingle extending beyond one end of the projection being of greater width than that portion extending beyond the opposite end of the projection.

In the accompanying Y lustrated the preferred embodiments'of the invention as they'now appear to me but it will be understood that such changes or modifications may be made as will fall within the scope of the appended claims.

In the drawings:

Fig. 1 isa plan View illustrating the mandrawings I have ilner of cutting the shingles from the sheet or strip.

Fig. 2 is a View similar to Fig. 1 showing areversed cutting ofthe s hect or strip.

Fig. 3 is a plan view showing the manner of cutting a slightly modified form of shingle.

.Fig. tis an edge view of the construction shown in Fig. 3, and

Fig. 5 is a section on the line 5-5 of Fig. 3 looking in the'direction of the arrows.

In cutting shingles from strips or sheets of prepared material it can. readily be appreciated that it is desirable to so cut the sheet or strip as to avoid-Waste and with the method which I employ the shingles arecut in such a manner that there is. only a small amount of waste, at the beginning of the cutting. In manufacturing such shingles it has also been the custom to cut through the strip or sheet to the point of the gravel or grit surface and to then have the projecting ends of the shingles'engaged by grabbing rolls whereby the shingles are separated along the out edges. .Inthis grabbing or separating action it is desirable that there be no uneven pull on the sheet or strip and by cutting the sheet or strip as I noyvvpros pose there will be a uniform pull thereon and the sheet or strip vwill pass evenly through the cutting mechanism'without distortion. f v i In the drawings the sheet or strip is indicated generally at A and the individual shingles are formed by the cutting 'of the strip or sheet longitudinally through the co iter as shown at 1 longitudinally, on each side of the. center as shown at 2'and transversely on. the lines?) and t. By this cutting four separate rows of shingles are pro-v vided and certain of. the shingles will extend beyond others to be engaged by the grabbing rolls of the cutting machine.

The longitudinal cuts '2 are irregular to form on one side edge of each of the injdividual shingles 5 a projection 6, said pros jection being positioned between the top and bottom edges of the shingles. That portion of the shingle extending beyond one endiof the projection being of greater width than i that portion extending beyond the opposite end of the projection for a purpose as has been quite fully set forth in my copending application filed March 14, 1925, Serial No. 15,540.

As is quite clearly illustrated in the drawings it will be seen that the projection formed on one side edge of each shingle has one end terminating at the point of the transverse cut in the adjacent strip of shin les and that in cutting as is illustrated the s iingles may be formed from a sheet or stri without waste. At the same time the pro ections on the shingles of one strip will overlap the end of a shingle of the adjacent stri 1 T e projection 6 is preferably of a length equal to the distance between the end 7 thereof and the end 8 of the shingle and the portion of the shingle lying between the end 7 of the projection and the end 8 of the shingle will be of less width than the portion of the shingle between the end 9 of the projection and end 10 of the shingle.

In cutting the shingles as above described they will be of uniform size and shape whereby they may be easily packed for shipment or stacked for use.

, In Figs. 3, 4 and 5 of the drawings I have shown a slightly modified form of out and in this form of the invention a central longitudinal cut 11 is made through the strip and the longitudinal cuts 12 made win fact that in cutting the strips or s on each side thereof with the longitudinally spaced transverse cuts 13 and 14. In cut.-

tmg the strip or sheet as shown there are 'four strips or lines of shingles provided these strips or lines being shown at 15, 1 6, 17' and 18. As is more clearly illustrated in 3 the shingles of the strips 15 and 17 that when engaged. by the grabbing rolls of the cutting machine there will be an even gull upon the sheet or strip. As shown in -1 of the drawings the grabbing rolls have a projection 19 formed on one one side edge first engage the projecting shingles m 7 the first and third line of shingles and will separate them from the strip or sheet. The rolls will next engage the projecting ends of the shingles in the second and fourth lines and so on. As shown in Fig. 3 the grabbing rolls will first engage the projecting ends of the shingles in the second and fourth lines of shingles, will next engage the projecting ends of the shingles in the first and third lines, and so on to the end of the strip.

Itwill thus be seen that the projecting ends of the shingles are always so engaged that there will be a straight and even pull upon the sheet or strip.

Having fully described my invention what I claim a new and desire to secure by Letters Patent is:

l. The herein described method of form-- ing shingles from a strip of material which consists in longitudinally and transversely cutting .the strip to form a plurality of rows of shingles, each of the shingles having a projection formed on one side edge, one end of the pro ection terminating at the transverse cut of the adjacent row of shingles.

2. The method of forming shingles from a strip of material which consists in dividing the strip into adjacent lines of shingles so that more than one terminal shinglewill project beyond other shingles to present aligned grabbing portions of separate strips, and each shin le having a projection formed on one side e ge, one end of the projection terminating ad acent the transverse dividing line of an adjacent strip of shingles.

3. The method of forming shingles from a strip of material which consists in longitudinally and transversely cutting the strip to form aplurality of rows of shingles, each shingle having a projection formed on one side thereof and that portion extending beyond one end of the projection being of greater width than that portion extending beyond the opposite end of the projection.

4. The herein described method of forming shingles from a single which consists in longitudinally cutting the material to form a' plurality of rows and transversely cutting the rows to form the individual shingles, the transverse cuts of alternating rows being on the same plane so that more than one terminal shingle will project beyond other shingles to resent aligned grabbing portions of the siingles of alternating rows.

In testimony whereof I hereunto afiix my signature.

,- JOSEPH A. MURRAY.

strip of material

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