Untitled record

A. S. SPEER,

METHOD OF MAKING ROOFING SLABS, APPLICATION FILED NOV. 23, 1921.

Reissued Nov. 21,1922. 15,496.

<img file="USRE15496E_D0001.tif" />

<img file="USRE15496E_D0002.tif" />

Reissued Nov. 21, 1922. Re. 15,496

UNITED STATES PATENT OFFICE.

ALEXANDER S. SPEER, OF BUFFALO, NEW YORK, ASSIGNOR TO THE ROOFING PATENTS COMPANY, A CORPORATION OF DELAWARE.

METHOD OF MAKING ROOFING SLABS.

Original application filed April 7, 1919, Serial No. 288,035. Patent No. 1,318,238, dated October 7, 1919. Divided and. application filed September 19, 1919, Serial No. 324,952. Original No. 1,379,727, dated May 31, 1921. Application for reissue filed November 23, 1921. Serial No. 517,383.

To all whom, it may concern:

Be it known that I, Alexander S. Speer, a citizen of the United States, residing at Buffalo, in the county of Erie and State of 5 X(.;\v York, have invented an Improvement in Methods of Making Roofing Slabs, of which the following is a specification.

My invention relates to an economical method of making shingle units, or strips, 10 designed tvhen laid in a roof to simulate a plurality of individual shingles.

The invention aims to provide from a sheet of roofing material of well known, or improved, construction which is of much 15 greater length than width a plurality of shingle units, or strips, with a minimum of waste, and each unit of such form that when used to construct a roof iii the usual way the end edges of the unit will register with 20 the intact portion of all of the overlying units, or strips, and will not register witli the cutout portion thereof, or spaces between the projections which simulate individual shingles.

The invention is illustrated in the accompanying drawings, in which :

Figure 1 is a plan view of a sheet of roofing material with the lines of cutting for one form of shingle unit illustrated by dotted 30 lines.

Fig. 2 is a plan view of a section of a roofing formed by the shingle units produced in the manner illustrated in Fig. 1.

Fig. 3 is a view similar to Fig. 1, show35 ing in dotted lines the lines of severance for producing a different form of shingle unit, and,

Fig. 4 is a section of a roof formed by shingle units of the character produced in 40 the manner indicated in Fig. 3.

Figs. 5, 6 and 7 illustrate that the method can be carried out in connection with a strip of a width only sufficient to cut one slab crosswise thereof.

A strip of roofing material of well known, or improved construction, and of materially greater length than width is designated 1 in Figs. 1 and 2. From a strip of this character a plurality of shingle units, as will be hereinafter described, are produced. The shingle unit, or strip, is designated 2 in Figs. 1 and 2, and 3 in Figs. 3 and 4, and. in each instance it includes a front portion comprising a plurality of projections, or tongues, 2^a, 3^a, the projections 2^a being of 55 semi-hexagonal shape, with intervening spaces which may be, as shown in Fig. 2, the same size and shape as the tongues, or which may be, as shown in Fig. 4, of considerably less size. Each unit also in- 60 eludes a body portion 2^b, 3^b, which is preferably of greater width than the tongue and as shown in Figs. 2 and 4 is approximately twice as wide as the tongue.

In forming a roof the units are laid in 65 horizontal courses with the end edges of the units in each course abutting and with the courses so super-iipposed that the projections, or tongues, of each course will be exposed in advance of the tongues, or projec- 70 tions, of the overlying course and with the middle of the spaces between the tongues or projections of the immediate underlying course in register with the middle of the tongues or projections of the immediate over- 75 lying course.

As the body portion of each unit is preferably twice as wide as the width of the tongues throughout the major portion of a roof made up of these units, each course has so two courses superimposed thereupon, as shown in Figs. 2 and 4.

In prior practice shingle units have been made and have been used in constructing roofs substantial!}⁷ in the manner described 85 and it has been the uniform practice in these articles of the prior art to have the end edges of the body portion of the units disposed substantially perpendicular to the general line of the front edge of the blank, »0 or perpendicular to the line of each horizontal course of blanks as laid in a roof, with the result that portions of the abutting ends of continuous units will register with the spaces between the projections of cer- 95 tain of the overlying units.

For instance, were the end edges of the units, shown in Fig. 1, arranged perpendicular to the general line of the front edge of the unit, or perpendicular to the lines of the 100 courses, portions of the abutting edges of the body portions of the blanks of the lowermost course would be in register with the spaces between the projections of the blanks forming the third course. 105

My invention aims to insure the covering a

1δ,4ββ of the lines of juncture between abutting units by the intact portions of the units or both of the overlying courses, and the manner of accomplishing this object as disclosed δ herein consists in running the end edges of the body portions of the units at an angle other than a right angle—and as shown herein, at an obtuse angle—to the general direction of the front line of the unit.

For producing a plurality of shingles having the described characteristic from a strip । of roofing, such as that designated 1, and with a minimum of waste, I cut the units from the strip with the width of the units 15 disposed substantially lengthwise of the strip, the length of the units being disposed substantially width wise of the strip. The units are preferably made of such length that a pair of the same will correspond to 20 the width of the strip 1 and the general line of severance forming the front and back of each unit extended other than at right angles or bias to the lengthwise edge of the strip. As shown in Fig. 1, the gen25 eral line bf severance is at such an angle that the edges on one side of the projections 2^s are parallel with the lengthwise edges of the strip.

Thus, each lengthwise section of the strip 30 1 of a width corresponding to the maximum width of the shingle unit is designed to form a blank which, when severed through the middle, will provide two shingle units and this line of severance is along a line parallel 35 to the side edges of the strip 1.

As shown in Fig. 1, the outer or end edges of the body portions of the units will be formed by the lengthwise edges of the strip 1 and due to the angle of the general line 40 of severance. forming the lengthwise edges of the blank the end edges thereof formed by the lengthwise edges of the strip 1, as well as the edges formed by severing the blank through the middle, will be disposed 45 at the desired angle to the general line of the lengthwise edges of the blanks.

In the exemplification of the invention shown in Fig. 3 the same general plan for severing the units from the strip 1 is fol50 lowed, but there is slightly more waste than in the plan illustrated in Fig. 1; due to the difference in the shape of the projections, or tongues, provided on the units.

Figs. 5, 6 and 7 show a strip narrower 55 than that of Figs. 1 and 3 to provide material across its width for only one slab. In Fig. 5, the outer edge of the extreme projection 2^a coincides with one of the edges of the strip.

The present case is based on subject matter divided out from application filed by me April 7, 1919, #288,035.

It will be seen that the method is so performed that a shoulder is left at x which will 65 provide for the overlapping of the slab above it, and a nail which may be inserted adjacent this shoulder will be protected. In the form of the method as carried out according to Figs. 1 and 3, it will be noticed that the central longitudinal line of sever- 70 ance is staggered and the shouldered construction results from this.