US1394911A - Shingle-cutting machine - Google Patents

Description

R. D. KING.

SHINGLE CUTTlNG MACHINE.

APPLICATION FILED NOV. 1, 1920.

' 1,394,91 1.- PatentedOct. 25, 1921..

. -UNITED STATES PATENT OFFICE.

' BOY 1:. 3111s, or onroneo ILLINOIS.

- SHING-LE-CUTTING MACHINE.

Specification of Letters Patent. Patented Oct. 25, 1921.

Apjzalication filed November 1, 1920. Serial No. 420,936.

To all'whomitmay concern:

Be it known that I, Roy D. Kine, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Shingle-Cutting Machines, of which the following i a specification. 1 I This invention relates to machines for cutting strips of shingles from a sheet of composition roofing. By means of the machine,the sheet of roofing is severed transversely into shingle strips, the lower edges of which are provided with spaced recesses simulating in appearance the spaces between the individual wooden shingles of a roof when laid in rows in the customary manner. When the strips produced by this machine are laid in horizontal overlapping rows, the exposed portion separated by the recesses closely resemble the shingles of a wood shingle roof. V 7 While I am aware thatmachines for this general, purpose have heretofore been devised, the primary purpose of my present invention is the provision of a machine in which all of the operations are cutting, as

distinguished from tearing operations, so that all of the edges of the shingle strip will be smooth and even, thereby producing shingle strips, the upper edges of which are straight and smooth, and the loweredges of which simulate the appearance of wooden.

from a sheet, forming during this cutting operation the lower edge of the shingle strip, and then subsequently cutting the waste from the upperedge of the. strip after it has: been severed from p the sheet, thereby producing a smooth upper edge for the strip and completing the formationof the strip.

Forv the purpose of facilitating an understanding of my invention, I have illustrated n the accompanying drawings, one praeti.

cal and preferredembodiment thereof, from an inspection of which the construction, mode of operation, and many of its inherent advantages should be readily understood and appreciated.

Referring to the drawings:

Figure l is a longitudinal sectional view, somewhat diagrammatic in character, illustrating the novelfeatures of a machine embodying my invention;

Fig. 2 i a plan view of'the structure shown'in Fig. 1;

Fig. 3 is a detail plan view tionary cutting block; and i Fig. 4 is a detail plan view of a finished shingle strip.

The machine embodying my invention comprises a supporting frame of suitable construction upon which the operating mechanisms are mounted, the side portions ofthe frame being designated generally in Fig. 2 by reference character 5. Within the frame, there i mounted a transversely extending spindle beam 6 adapted to carry a roll 7 of composition roofing" material which is fed therefrom into position vtobe cut into shingle strips by a pair of feed rollers 8 and 9 driven by any suitable mechanism (not shown);

Forwardly of the feed rolls there is mounted upon a suitable rigid support 10, a stationary blockor die 11, formed on its rear edge to provide alternately disposed recesses 12 and projections 13, the projections being of the width of the desired spaces tobe produced in the lower edge of a complete shingle strip, one ofsuch shingle strip being shown in Fig. 4",'and indiof the stacated generally by reference character 14.

It will be observed from this figure that the upper edge 15 of the strip is straight while the lower edge which-projects beyond the next overlapping layer when the strips are laid on aroof is provided at spaced intervals with recesses 16 which resemble in appearancethe spacing between the shingles of a wooden roof. In order that this spacing' may be unifornnthe stationary block 11 is so designed that one half of a recess is cut at eachend of the shingle strip as indicated by reference character 17 so that when two strips are laid end to .end, a space equal to one of-the spaceslG is formed between the ends'of the strips. I

Upon a stationary shaft18, mounted in the ire??? 9 the s ashing for ard y of the b q k 11, there is rotatably mounted a movable cutter 19, the cutter being of generally U- shape, and provided with bearings 21 and 22 which rotate upon the shaft 18, power being applied through a belt pulley 23 or other suitable means.

The outer edge of the cutter is shaped to provide recesses 24 and projections 25 complemental to the projections 13 and recesses 12 of the stationary block, the block and cutter each presenting a plurality of co1nplementary cutting edges so that when the cutter is moved downwardly across the block, a shingle strip will be severed from the sheet of material 26 with the lower edge of the strip completely formed and provided with the spaces 16 and 17. Those portions of the sheet lying upon the arms 13 will be left as projections upon the upper edge of the next succeeding shingle strip and the rate of feed of the sheet by the feed rolls relative to the speed of rotation of the cutter 19 is such that while the cutter is making a complete revolution, the sheet will be fed forwardly substantially into the position shown in Fig. l.

The cutter 19 is provided, a distance from the ends of the projections 25 equal to the width of a complete shingle strip, with a straight cutting edge 27, which, as the cutter moves downwardly to sever a shingle strip from the sheet, engages the forward edge of the severed strip just at the base of the waste portions projecting from the forward edge of the strip. Beneath the plane of the stationary block 11, there is mounted a die or block 28 having a straight cutting edge 29. This block is preferably fixed upon the shaft 18 and its width is equal to the length of the projecting waste so that when the severed shingle strip is carried downwardly by the rotating cutter 19, the coiiperative action of the cutting edges 27 and 29 sever the waste projecting from the upper edge of the shingle strip, thereby leaving a straight, smooth, upper edge, as shown in Fig. 4. These projecting waste portions are 1ndicated in Fig. 2 by reference character 31.

Upon further movement of the cutter 19, the

completed shingle strip is delivered on to a carrier from which it is conveyed from the machine while the waste portions drop upon another conveyer, bywhich they are delivered from the machine. In some instances, instead'of having the block 28 stationary, it may bemounted to rotate upon the shaft 18 in a. clockwise direction, while the cutter 19 is rotating in counter-clockwise direction. The operation of cutting off the waste would be substantially the same in either instance, but the waste cut off by the rotating block 28 would be carried on over the shaft 18 and delivered forwardly of the shaft instead ofrearwardly thereof as in the construction are removed therefrom as the strip is carried downwardly by the revolving cutter 19.

While I have illustrated the stationary block and revolving cutter as constructed to produce shingle strips of the character disclosed. in Fig. i, it will be manifest that shingle strips having variously shaped lower edges may be produced by my machine by simply changing the form of the stationary block and making the movable cutter complementary thereto, whereby any desired configuration of shingle strip may be produced. The details of construction of the machine may obviously be varied within wide limits without departing from the spirit of the invention as defined in the following claims.

ll claim:

1. A shingle cutting machine, comprising a stationary block having alternately disposed recesses and projections over which the sheet of material to be cut is fed, a movable cutter having complemental recesses and projections cooperating with said block to sever the lower edge of a shingle strip from said sheet, and means for subsequently removing the waste projecting from the upper edge of said severed shingle strip.

2. A shingle cutting machine, comprising a stationary block provided with alternately disposed recesses and projections over which the sheet of material to be out is fed, a mov able cutter having complemental recesses and projections cooperating with said block to sever the lower edge of a shingle strip from said sheet and also having a transversely disposed cutting edge spaced from the end of the cutting projections a distance equal to the width of the shingle strip, and means independent of said block coiiperating with said transversely disposed cutting edge for severing the waste from the upper edge of said shingle strip after severance of said strip from said sheet.

3. A shingle cutting machine, comprising a stationary block provided with recesses and projections over which a sheet of material to be cut is fed, a movable cutter having complemental recesses and projections cooperating with said block to sever a shingle strip from said sheet and also having a transverse cutting edge spaced from said projections, and means cooperating with said cutting edge for removing the projecting waste from the upper edge of a shingle stripsubsequent to the severance of said strip from said sheet.

4. A shingle cutting machine, comprising disclosed in which thebloek 28 is stationary. a stationary block having a plurality of cutting edges, a movable cutter provided with complemental cutting edges adapted to cooperate with said block to sever a sheet of material and also having a transversely disposed cutting edge spaced from said cutting edges, and means independent of said block for cooperating with said transverse cutting edge to remove the waste from the upper edge of a shingle strip severed from said sheet by the cooperative action of the cutting edge on said block and cutter.

5. A shingle cutting machine, comprising means for transversely severing a sheet of roofing material to produce a shingle strip having spaced recesses along its lower edge, the material removed from said recesses remaining as waste projecting from the upper edge of the next shingle strip, and means I for removing the projecting waste from the shingle strip subsequently to the severance of said strip from said sheet.

6. In a machine for cuttin composition shingles, the combination of a stationary cutting block, means for advancing a sheet of material over said block, means cooperating with said block to out from the forward end of said sheet a shingle strip having spaced recesses at its rear or lower edge, the projections produced by forming said recesses remaining attached to the upperor forward edge of the next shingle strip to be cut, and means operable upon each shingle strip subsequently to its severance from said sheet for removing said projections from the forward edge thereof so as to produce a substantially straight edge.

nor 1), KING.

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