US1623983A - Trustees - Google Patents

Description

A ril 1 1927.,

p A. s. warm MACHINE FOR MAKING SHING'LE STREPS Filed Feb. 17,

A TTOR NE Y5 April 12 1927 1,623,983 A 55. SPEEZR MACHINE FOR ErJM- ING SHINGLE STRIPS Filed Feb. 17, 1922 2 $Mets-Sheat 2 I I H H H HIHIUF Q v INVENTOR Patented Apr. 12, 1927.

UNITED STATES PATENT OFFICE.

ALEXANDER S. SPEER, OF BUFFALO, NEW YORK, ASSIGNOE, BY MESNE ASSIGNMENTS, T CENTRAL TRUST COMPANY OF ILLINOIS, A CORPORATION OF ILLINOIS, AND .AKSEL K. BODHOLDT, OF EVANSTON, ILLINOIS, TRUSTEES.

MACHINE FOR MAKING SI-IINGLE STRIPS.

Application filed February 17, 1922.

My invention. is an improvement in machines for cutting shingle strips, and relates particularly to machines for cutting shingle strips from prepared roofing. For the purpose of illustration, I shall describe the invention in connection with the manufacture of shingle strips or units known to the trade as doubletitel Shingle strips known as doubletite, are characterized by an arrangement of shingle tab and reinforcing tab, such that when the strips are laid with the shingle tabs exposed to the weather, to present the appearance of individual shingles, there will be a double layer of roof ing material below each space between the adjacent shingletabs, and with a width of strip corresponding to only double the length of a shingle tab. This result is attained by cutting the strips in such manner, that the reinforcing tabs of each strip are formed by the material removed from the preceding strip to provide the spaces be tween the shingle tabs. Such spaces are however, of greater depth than the length of reinforcing tab required, and the extremities of the portions removed to form such spaces, which are narrow tongues, are afterwards cut away.

In the present machine, I provide means for severing complete shingle strips from the web, two cutters being provided, one forming the edge having the tongues, and the other severing the tongues, the arrangement being such that the first cutter cuts off a complete shingle strip, and forms the tabbed edge of another including the tongues, which are afterwards severed by the other cutter.

In the drawings;

Figure 1 is a top plan view of the improved machine,

Figure 2 is a side view,

Figure 3 is a longitudinal section,

Figure 4 is a plan view of the bed knife or plate, 1

Figure 5 is a similar view of the movable knife or blade,

Figure 6 is a plan view of a completed strip,

Figure 7 is a perspective view of one of the punches.

In the resent embodiment of the invention, a suitable frame 1 is provided, having journaled thereon at one side a PM! of feed Serial No. 537,327.

rollers 52, the rollers being arranged one 6 above the other. The top roller 2 is journaled 1n bearmg blocks 3, which are mounted to slide vertically in guldes t on the frame,

and the upper roller may move away from the lower roller, to compensate for unevenness in the thickness of the roofing material. The lower roller 2 carries a gear wheel 5, which meshes with an idler 6 on the frame, and the idler is driven through a second idler 7, from a shaft 8 journaled on the frame It the opposite side from the rollers 2, and having a pinion 9 meshing with the idler 7 The shaft 8 carries a gear wheel 10, which is adapted for connection with a suitable source of power, to drive the machine.

A pair of slitting rollers 11 is arranged in front of the feed rollers 2. Each of the rollers 11 has an annular blade 12 at the center thereof to slit the web longitudinally, as it is fed by the feed rollers. The rollers 11 are mounted in slidable bearings 3, similar to the bearings 3 for the feed rollers, the bearings being slidable in guides 4 corresponding to the guides 4 for the feed roller bearings. The web of roofing material from which the shingle strips are to be out, is fed to the feed rollers, between the slitting rollers, and over a supporting rod 18 held by brackets 14 at the front of the frame. From the feed rollers the web passes over a bed plate or ledger blade to be described which is supported just in rear of the feed rollers 2.

The bed plate comprises a suitable support 15, having on the upper face thereof a series of spaced abutments 16 at one side edge, and having at the other side edge a series of lugs 17, spaced in accordance with the spacing of the abutments. Between each pair of abutments, there is arranged a pair of similar blades 18, and a punch 19, the blades of each pair abutting the punch at each side thereof, being arranged between the punch and the abutments 16, and the punch is held in place by means of clamping plates 20 and 21. Each punch is grooved longitudinally near its forward end, and the clampmg plates have tongues engaging the grooves. One of the plates 21 is made detachable, and it will be evident that by removing the said plate, the punch may be removed as may b also the blades 18,

The shingle strips which are cut from the web of rooting material are shown in Figure 6. Referring to this figure, it will be seen that each strip 22 is provided at one side edge Witha series of substantially trianguof the upper edge of the shingle strip shown in Figure 6. That is the end of the web has a plurality of substantially triangular tabs 23, each of which has a tongue, corresponding in shape and size to a slot 25. .In order to provide for the strip edge shown at the bottom of Figure 6, these tongues must be cut away. In order to make these cuts,

I provide the cutter shaft 8 before mentioned with blades 26 and 27. The blade 26 as shown more particularly in Figure 5, has the outline of its cutting edge conforming to the free edge of the bed plate, which edge is formed by the 'bed plate, the blades 18, and the punches 19. That is the edge of the blade 26 has notches 28, and slots29, the notches 28 being similar in shape to the tabs 23, while the slots are of the same shape and size as the slots 25. The blade 27 has a straight cutting edge, and it cooperates with the square ends of the punches 19 as ledger blades.

In the cutting operation, the web of material is fed by the feed rollers over the bed plate or table 15. The feeding is so timed that as a suflicient amount of web is .fed to form a shingle strip, the blade 26 will engage the web, cutting off a complete shingle strip. Immediately after theblade 27 engages the end of the web, removing the tongues above mentioned, and giving to the edge of the web, an outline corresponding to the lower edge of the shingle strip, as shown in Figure 6. It will be obvious that for each complete rotation of the shaft 8, a shingle strip of a length equal to the full width of the web oi roofing material is severed. Since the web has been slitted longitudinally at the center, the shingle strip will consist of two similar portions, as

shown in Figure 6.

The severed strips fall upon a carrier composed of a plurality of endless belts 30, which are arranged in spaced parallel relation, below the cutter shaft 8. These belts are supported bypulleys 31 and 32 mounted on shafts 33 and 34: journaled 0n the frame, the shaft 33 being journaled in brackets 35 sired. The rollers ll are driven through gears 36, 37 and 36 from the lower iced roller 2, the gears 36 and 33 being on the lower members of the pairs 01' rollers 2 and llv respiwtively, while the gear 37 is an idler. The cutter is driven from a power shait by means of a gear wheel 40 meshing with the wheel 10.

In the operation of the .device, the web passing the slitting rollers is severed longitudinally into two strips. These strips lying close alongside each other are fed by feed rollers over the ledger blades. At each complete rotation of the cutter shaft, :1. co1nplete shingle strip is cut "from the web, the strip being in two portions because of the slitting of the web, and the excess material is cut from the end of the web.

This application a continuation in part of my co-i iending application Serial No. 337,577. filed November 12, 1919.

I claim:

1. A machine for cutting from a web oi roofing material shingle strips each having one edge provided with spaced reinforcing tabs, and having the other edge notched to provide shingle tabs, with the notches opposite the reinforcing tabs and of greater depth than the length of such tabs, comprising a ledger blade having a cutting edge notched to correspond with the shape of the reinforcing tabs and slotted at the bottom of the notches to form extensions to the notches, means for feeding a web of roofing, material over the ledgerblade, and cutter blades, one blade having its edge shaped to cooperate with the notched edge of the ledger blade, and the other having a straight edge, and means for moving said blades in succession past the ledger blade, thereby to first form the shingle tabs, and to alter" wards remove the excess material :lformcd bv the slots of the ledger blade.

2. A machine for cutting from :1 web oi roofing material shingle strips each having one edge provided with spaced irin'l'orcing tabs, and having the other edge notched to provide shingle tabs, with the nolchrs opposite the reinforcing labs and of great er depth than the length of: such tabs, comprising a ledger blade having a cutting edge notched to correspond with (he shap of the reinforcing tabs and slotted at the bottom of the notches to form extensions to the notches, means for feeding a web of rooting material over the ledger blade, and cutter blades, one blade having its edge shaped to cooperate with the notched edge of the ledger blade, and the other having a straight edge, means for moving said blades in succession past the ledger blade, thereby to first form the shingle tabs, and

Ill)

to afterwards remove the excess material formed by the slots of the ledger blade, the ledger blade comprising a body having spaced abutments, a punch and a. pairof blades between each pair oi adjacent abutmcnts, the punch being between the blades, the blades being shaped to form the notches and the punch being shaped to form the slot, and means for detachably holding the blades and punches in. place.

3. In a machine for cutting a web oli roofing material into shingle strips each having one edge provided with spaced reinforcing tabs, and the other edge notched to form shingle tabs, the notches re 'istering with the reinforcing tabs and be lg o'l greater depth than the length oi? the tabs, a leiilger blade comprising a body iaving spaced abutn'ients, and a punch and a pair of blades between each pair ol' adjacent abutments, the blades cooperating to form the notches, and the punches forming the slots, and means for ren'iovably holdingthe punches and the blades on the body.

4. In a machine for producing shingle units having spaced shingle tabs with narrowed ends and protecting tabs along the rear edge of the unit, the con'ibination, wlth means for supporting a sheet oi material, of a cutter having a cutting edge which conforms with the contour oil the spaced shingle tabs, and arranged to cut the sheet transversely and to leave the material forming the spaces between the tabs and narrowed ends thereof attached to the sheet; and other cutting means for thereafter cutting from the sheet the Waste material forming the spaces between the tabs but leaving the material resulting in the narrowed ends of the tabs attached to the sheet.

5. In a machine for producing shingle units having spaced shingle. tabs with converging ends, the combination, with means for supporting a sheet of material, of a cutter having a cutting edge which conforms with the contour of the spaced shin gle tabs, and arranged to cut the sheet transversely and to leave the material forming the spaces between the tabs and narrowed ends thereof attached to the sheet; other cutting means for thereafter cutting from the sheet the waste material forming the spaces between the tabs but leaving the material resulting in the narrowed ends of the tabs attached to the sheet; means for periodically operating said cutter and cutting n'ieans; and means for feeding said sheet synchronously with the cutter and cutting means.

6. In a machine for producing shingle units having along one edge narrow ended shingle tabs separated by slots and triangular tabs along the opposite edge, the 001m biuation with means for supporting a sheet of material, of a movable cutter having a cutting edge contorming in contour with that of? the edge of the strip having the shingle tabs; a stationary cutting member to cooperate with the movable cutter, said cutter arranged to cut a unit transversely from said sheet, leaving attached thereto the material forming the slots between the tabs and the i'naterial :t'orming the triangular tabs of the succeeding unit; other cutting means for cutting the waste material :torn'iing the spaces between the tabs, means tier operating said cutters periodically, and means for feeding said sheet synchronously with the operation of said cutters whereby said sheet is cut at intervals to form said shingle units.

7. In a machine for producing shingle units having spaced shingle tabs along one edge and triangular tabs along the other edge, the combination with means for supporting a sheet of material, ofa rotary cutter having a cutting edge conforming in contour with that of the edge of the strip having the shingle tabs, a stationary cutting member to cooperate with the rotary cutter; said cutter arranged to cut a unit transversely from said sheet, leaving attached thereto the material forming the spaces between the tabs and the material forming the triangular tabs of the succeeding unit; another rotary cutter coaxial with the other cutter but of a radius sufficient only to sever from the sheet the waste material forming the spaces between the tabs, means for operating said cutters periodically, and means for feeding said sheet synchronously with the operation of said cutters whereby said sheet is cut at the proper intervals to form said shingle units.

In testimony whereof I aflix my signature.

ALEXANDER S. SPEER.

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