US1532538A

US1532538A - Manufacture of shingle strips

Info

Publication number: US1532538A
Application number: US608113A
Authority: US
Inventors: Samuel M Langston
Original assignee: Individual
Current assignee: Individual
Priority date: 1922-12-20
Filing date: 1922-12-20
Publication date: 1925-04-07
Anticipated expiration: 1942-04-07

Description

April 7, 1925.

S. M. LANGSTON MANUFACTURE OF SHINGLE STRIPS Filed Dec. 20, 1922 '2 SheetsSheet 1 April 7, 1925. 1,532,538

s. M. LANGSTON MANUFACTURE OF SHINGLE STRIPS Filed Dec. 20, 1922 2 Sheets-Sheet 2 (Z 6' 5 I a 3 t I M w? B Q n n J a 0 B 4 $3., Z a 16 14 1] 1| l] H n u M Patented Apr. 7 1925.-

PATENT OFFICE.

SAMUEL M. LANGSTON, OF WENONAH, NEW JERSEY.

MANUFACTURE O'F' SHINGLE STRIPS.

Application filed December 20, 1922. Serial No. 608,113.

'1 '0 all whom it may concern:

Be it known that I, SAMUEL M. LANq- TON, a citizen of the United States, and resihi nt of Wenonah, in the county of Glouceste and State of New Jersey, have invented certain new and useful Im rovements in the Manufacture of Shingle trips, of which the following'is a specification.

This invention relates to the manufacture of that type of multiple shingle or roofing strip which is made of paper,.felt, asbestos or other analogous flexible sheet material saturated or treated with asphalt, tar, pitch or other -waterproofing composition and coated on at least one surface with sand,

, grit, crushed slate, or other mineral or fireproof material.

A common form of such multiple shingle is of alength several times the width and provided with .a plurality of notches or recesses in one of the longer edges, so as to form tabs each of a width corresponding to that of an individual shingle. The strips when laid in overlapping rows on the roof have the tabs and notches exposed at the lower edge to give the general appearance of individual shingles. The products of different manufacturers vary as tothe shape and configuration of these tabs or shinglelike projections, and as to the relative widths. ofthe tabs and the notches or inter vening'spaces. It is customary to cut such strips from sheet material which'is continu ously or intermittently fed from a roll, a saturating and coating machine, or other 7 source of supply.

My invention is a new apparatus for making multiple shingles of the kind above referred-to. Many processes and machines have been invented for making these multiple shingles. In some it has been proosed to use a sheet of a width correspond ing' to the length of the shingle strip with the strips extending transversely of the sheet, and the spacing between transverse cuts corresponding to the width of a strip.

In others it has been proposed to use a sheet of a width equal to a multiple of the width of astrip with the strips extending lengthwise of the sheet and slitted lengthwise between strips. There are numerous advantages for the lengthwise arrangement of the strips in the sheet, as ointed out in .my Patent 1,441,359, issued anuary 9th, 1923, and allowed October 27th, 1922. Briefly, these include reduction in number of transverse cuts per unit of length, high speed of sheet travel, limiting dimensional variations to strip width rather than length, and reducing width of a possible waste strip if the sheet be much too wide. 7 One of the principal difficulties which has prevented theme of the last mentioned arrangement prior to the invention of my patent above referred to, is the fact that as soon as the sheet is perforatedor slotted at the proper points to form the recesses between the tabs, andthe sheetis slitted, the resulting tabs and recesses of each strip extend in a direction at right angles to the direction of feed of the sheet. The tabs when unsupported at their free ends often droop or bend down, so that during the advance of the material they are liable to catch on or be folded under by parts of the machine with which they en age. The liability of bending thetabs is particularly great if the sheet material is fresh' from the saturating and coating machine and still hot, as is often the case.

One object of'my present invention'is to overcome these mechanical difliculties and effectively support the tabs as they pass to and beyondthe'strip cut off mechanism whereby the trahsverse cutting of the sheet to subdivide the previously vformed strips into sections of the desired length may be the last cutting step in the process and effectively performed.

A further object is to provide an improved stri cut off and supporting mecha- As the first step in the process I form the: sheet one or more rows of apertures .ot

a size and position determined upon in accordance with thecharacter of the finished shingle stri and the recesses, notches or aces whic it is desired that the latter shall present along the edge thereof. The sheet, is thereafter slitted lengthwise to form strips side by side, and extending lengthwise of the sheet. The lines along which the slitting is done are spaced apart at distances equal to' the width of the finished strips, and are so located. that such apertures as'are located intermediate of the side edges of -.the sheet are intersected by the slits so as to form the free ended tabs and intervening notches or spaces along one edge of each strip. The series of strips arranged side by side are thereafter sub-' divided transversely into sections to form the finished strips.

As one important feature of my invention I provide a cut off mechanism of the rotary type in which the blade or blades during the cutting action travel with the sheet at substantially the same speed, and which is so constructed as to permit of the proper sup: porting of the tabs or laterally projecting parts during such cutting action.

As another important feature,,I arrange the blades of the cut off mechanism and the aperture forming mechanism alternately across the Width of the sheet, and so time and drive the parts that the cut-off mechanism acts only on the portions of the sheet at opposite sides of an aperture. Thus the portlon of the sheet having the aperture may pass freely through the cut ofi' mechanism and be properly supported during such travel.

As a further feature I provide a novel arrangement of conveyor belts which act to support the laterally projecting parts of the strip and carry them directly through the cut off mechanism.

As a further feature I provide supporting means so disposed in respect to the slitting mechanism as to prevent the displacement of the tabs as they are severed at their free ends by the slitting mechanism and which serves to' support said tabs as they pass through the machine beyond said slitting mechanism. Thus the tabs as soon as they are formed, are prevented from bending down or drooping and their edges or corners are prevented from catching on any obstructions during the progress of the strips through the machine.

In the accompanying drawings I have illustrated somewhat diagrammatically the essential parts of certain mechanism embodying my invention. In these drawings:

Fig. 1 is a vertical longitudinal section through the operating parts of one form of machine embodying my invention, said section being taken on the line 11 of Fig. 4.

Fig. 2 is a transverse section on the line 2-2 of Fig. 1, but on a somewhat larger scale.

Fig. 3 is a section Fi s. 2 and 4.

ig. 4 is a plan view of certain of the parts, taken on the line 4-4 of Fig. 1.

Fig. 5 is a section similar to Fig. 1, but showing an alternative form.

F Fig. 6 is a section on the line 66 of 1g. 5. Fig. 7 is a section similar to Figs. 1 and 5, but showing a third form.

Fig. 8 is a plan view of certain of the parts taken'on the line 88 of Fig. 7

Fig. 9 is a plan view of a sheet showing on the lines 3-3 of ing various forms of shingles or shinglestrips, and particularly for cutting a sheet into shingle strips which extend lengthwise of the sheet, that is, in the direction of travelv of the sheet, and which present projections or tabs along one or more edges, and at an angle to the direction of travel.

In Fig. 9 I have shown a sheet A which may be advanced from right to left, and from any suitable source. For making a standard form of shingle this sheet may be of felt, asbestos or other fibrous material coated or saturated with a waterproofing compound and coated upon surface with crushed slate, grit, or other fireproof or mineral substance.

As the first step in the process there are formed a series of slots or apertures a in one or more rows extending lengthwise of the sheet, and preferably intermediate of the side edges. These apertures are formed of a width lengthwise of the sheet, equal to the desired width of the notches or recesses in the finished strips, and are of a width transverselyof the sheet equal to the depth of such notches or recesses, or twice the depth, depending upon the location of the slits later formed in the sheet. The apertures may be formed in any suitable manner, for instance there may be first formed a series of pairs of parallel transverse slits b and thereafter a series of pairs of longitudinal slits. a properly registering with the slits b to define the apertures a. Thereafter the sheet is passed through slitting mechanism which forms longitudinal slits d and the sheet is then cut transversely to subdivide the strips into sections B which may form the final product. The transverse cuts which subdivide the sections B from the body of the sheet A are along lines 6, e, e", etc., which intersect an aperture a or a se ries of apertures if there be more than one row lengthwise of the sheet. The transverse slits or cuts 6, e, 6", out each strip from its straight edge to one of the notches or recesses therein.

In Fig. 9 I have shown two rows of apertures a each of a width equal to double the depth of the desired notch or recess of the strip, and slit the sheet along three lines (I, two of which intersect the two rows of apertures intermediate of the opposite ends of each aperture, and the third subdividesthe sheet intermediate of the two rows of aper tures. This arrangement is not essential as the rows of apertures may be formed as shown in Fig. 10. Here there are apertures a which are of a width transversely of the sheet equal to only the depth of the recess, and other apertures a of double that width. The slitting in this case is the same, but

the apertures are so positioned that two of' the slits d intersect the apertures a, at their ends rather than intermediate of their ends. This arrangement is preferable in some cases, as it facilitates the use of a sheet of a width equal to only three strips or a strip equal to-the width of four or more strips without having any of the apertures formed along a side edge of the sh et.

It will ofcourse be understood that I do not wish to be limited to this particular shape of'shingle strip, as there may be a greater or lesser number of 'tabs or lateral projections on each strip, and the relative widths as well as the shapes of the projections and recesses may be variedin accordance with the desire of the shingle manufacturer.

So far as the present invention is concorned I do not wish to be restricted in any way to the character of the mechanism employed for forming the apertures. In the construction illustrated in Figs. 1 to 4 inclusive, I have shown somewhat diagrammatically aperture-forming mechanismineluding two pairs of coacting rotary members, the first pair of

members

10 and 11 acting to form the transverse slits 6. One of these members 11 presents a plurality of pairs of longitudinally extending blades 12 ofjthe proper spacingand length, and the other member 10 presents hardened platen surfaces against which these blades act. The other two members, 13 and 14, coact to form the longitudinal slits 0. One of these members 14 carries blades 15 as well as flanges 16 for forcing the severed pieces into engaging contact with the other mem-.

ber 13, as for instance into grooves 17. The

severed pieces may be removed from the grooves 17 by stripper fingers 18.

This construction and arrangement of parts for forming the apertures are shown more in detail and are claimed in my Patent 1,462,138, issued July 17th, 1923.

The sheet after having had the row or rows of apertures formed therein passes between one or more pairs of rotary coacting members for forming the longitudinal slits .(Z. This slitting mechanism may include a series of pairs of slightly overlapping rotary drum having a

shear members

19 and 20, or ma be of any other construction suitable for slitting. For

instance, the upper member 19 may be a.

hardened surface, and the lower members 20 may be V edge score cutters acting against said drum. So far as the present invention is concerned, I do not wish to be restricted to any particular mechanism for forming either the apertures or for forming the longitudinal slits, except that the slitting mechanism should be of blades or knives of the lower member 22.

These blades 23 extend lengthwise of the member" 22 and are secured thereto in any suitable mariner, as for instanceby mounting in radial slots where they are secured by,

clamping screws 24. The slots may extend the entire length of the member 22 so that blades of any desired length may be inserted, and adjusted lengthwise of the member to the desired positions.

As one important feature of the construc-- tion the blades 23 are arranged alternately 9 in respect to the slot forming mechanism transversely of the sheet. In'other words, the blades 23 are'so positioned-that they cut the slits e, e and e" of the sheet as shown,

in Fig. 9, but the several knives are of lengths only slightly greater than the length of these slits e, e and e. The blades terminate adjacent to the ends of the apertures,

although they may extend into the apertures a suflicient distance to insure the proper cutting and avoid the necessity for absolutely accurately positioning the blades 23.

As another; important feature fls rovide means for supporting thetabs or pro ections from the time they are formed until the finished strips leave the machine. 7 As shown in Figs. 1 to 4 inclusive this supporting means includes a series of belts or endless conveyors 25 passin over rollers or

drums

26 and 27, so positioned on opposite sides wise of the machine from 'one side of the

members

21, 22 to the opposite side. These belts are ositioned substantially in align-' ment with the aperture forming mechanism,

and are each of a width slightly less than and are disposed between'ad- Y the apertures, jacent blades '23. The belts are also arranged substantially in alignment with the path of the

slitters

19, 20, so that substantially the whole of each laterally facing tab with grooves which receive the belts and between adjacent grooves are portions of of the lower member 22 as to present a run 1 of each belt substantially in the plane of 5 delivery of the sheet, and extending lengthslightly larger diameter, as shown particularly at the left edge of Fig. 4. These portions of larger diameter may coact with a superposed roller or drum 28 to form feeding mechanism for drawing the sheet through the machine and taking out all slack in the sheet. Preferably the roller 28 "and the coacting gripping portions of the roller 27 have a slightly greater peripheral speed than the normal speed of the sheet, so as to slip slightly on the sheet but to give a tensioning effect as well as a positive pull. As the portions of the rollers 27 which engage with the belt are of smaller diameter than the gripping portions of these rollers, the belts may travel at the same speed as the sheet while the larger portions of the drum have a slightly higher speed than the sheet. The

rollers

26 and 27 may be of any desired diameter, and if such diameter be less than that of the lower.

member 22 'of the cut off mechanism the belts may pass over an idler 29 below the member 22.

For conveying the sheet to the belts and for supporting the tabs at the time they are first'formed, there is provided asupporting platform or table 30 which may have a. series of fingers 31 projecting through between the slitting mechanism upon op osite sides of and closely adjacent to the slitting blades, as shown particularly in Fig. 4. These fingers may be so secured to the supporting platform 30 that they may be adjusted transversely of the machine to permit of transverse adjustment of the slitters, and the opposite edge of the platform 30 may terminate closely adjacent to the drum 26 and the belts of the latter so as to leave no gap through which tabs themselves may droop, or against which the edges of the tabs may catch.

Feeding means in addition to the

rollers

27 and 28 may be provided at any desired point along the path of travel of the sheet, and the strips when completed and delivered from the

rollers

27, 28, may be received by any suitable mechanism or conveyed to any desired stacking machine. The driving mechanism for the various rotary parts may be any suitable form of gearing so as to givethe proper peripheral speeds to the several parts. The

slitters

19, 20 should travel at a higher peripheral speed than the sheet to give the best cutting action. If the sheet have a coating of slate or other mineral matter, this will ordinarily be upon the upper surface of the sheet and the cutters, for instance those of the

members

11 and 22. may be beneath the sheet and may be adjusted so as to cut through the fiber or body portions of the sheet but not actually contact with the platen surfaces above. Additional supporting means for the sheet along its path of travel may be provided if desired. I have not shown any such additional supporting means in advance of the

slitters

19, 20, although such may be empleyed. I have shown transverse bars 32 upon opposite sides of the cut 03 mechanism and presenting platforms or supporting surfaces 33 between the belts, and at the outer sides of the belts. These -may be omitted if desired.

In Figs. 5 and 6 I have shown a further form in which the belts are omitted and a different form of cut off mechanism provided so as to avoid the necessity of these belts. In this form the cut off mechanism includes a member 21 beneath the sheet, and present ing a hardened or platen surface, and a member 22 above the sheet and presenting a single blade or knife 23 extending the full width of the sheet.- By putting the smooth surfaced member of the cut off mechanism beneath the sheet, the platform or stationary support 30 may terminate closely adjacent to the surface of/ the member 21 and a second supporting platform or table 34 may rece-ivethe strips and support them as they move to the feed rolls 2728. The feed roll 27 may serve as a drum for a. conveyor belt 35 carrying the finished strips to any desired point. The belt 35 may be of the full width of the sheet, or may be of separate narrower sections. The mechanism for forming the apertures and for slitting the sheet lengthwise may be of the same character as that illustrated in Figs. 1 to 4 inclusive. With the arrangement of supports 30- and 34, as illustrated in Fig. 5, it is not necessary to have conveyor belts extending through the cutoff mechanism.

In Figs. 7 and 8 I have shown a further form of my improved mechanism. Here all of the parts for forming the apertures, the longitudinal slits andthe transverse slits may be the same as. in Figs. 1 to 4 inclusive, but I employ belts25 which are arranged in pairs and extend not only through the cut off mechanism but also through the slitting mechanism upon opposite sides of the slitting members. In this construction the belt supporting drum or roller 26 instead of being mounted between the slitters and the cut off mechanism. is mounted in advance of the slitting mechanism. Thus the belts support. the sheet on its way to'the slitting mechanism. support the tabs at the instant they are formed by the connecting of the successive apertures at the slitting mechanism, and also support the tabs or projections as they pass through the cut off mechanism. Additional supports for the body of the sheet or strips may be provided at any desired points along the path of travel. I'have shown a transverse row of such supports or platforms 33 beyond the cut off mechanism. but others may be employed if desired. It will be noted that in this form I avoid, the necessity of the

stationary supports

30 or 30 and the fingers 31, as I so arrange the parts that the belts 25 serve the function of these parts. have so shown the drum or roller 26 as coacting with a superposed roller 36 to form a part of the sheet feedingmechanism.

I have illustrated the machine as constructed and designed to form strips with comparatively narrow notches or recesses in the edge of each finished strip, with a plurality of laterally facing rectangular projections. It will of course be evident that by the proper formation or of the slot forming apparatus, the slitters, and the cut off mechanism, shingle strips of variousdifl'erent forms and designs might be made and the shape, character and spacing of the tabs or shingle like projections varied at will.

I have shown a machine adapted for slitting a sheet into four strips, but by the proper selection and arrangement of the parts a narrower or wider sheet may be employed and cut into a larger or smaller number of strips of any desired width.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is: 1

1. A machine for making shingle strips including rotary coacting members for forming a row of; apertures in a sheet of material, a pair ofrotary coacting members for slitting the sheet into strips along a line extending lengthwise of the sheet and intersecting said'apertures to form one or more rows of laterally projecting tabs, and a pair of rotary coacting members for subdividing said strips transversely -into sections of uniform length, said first mentioned members and said last mentioned members being driven at substantially the same peripheral speed, and said rotary members for slitting the sheet being driven at a higher peripheral speed.

2. A machine for making shingle strips including means for forming a row of apertures in a sheet of material, means for slitting the sheet lengthwise into strips along a line lengthwise of the sheet and intersecting said apertures to form oneor more rows of laterally projecting tabs, means for subdividing the strips transversely into sections of uniform length, and feeding means for exerting a pull on the advancingend of the sheet to prevent accumulation of slack, and for advancing the successively formed strip sections at a faster rate than the body of the sheet.

3. A machine formaking shingle strips including means for forming a row of apertures in a sheet of material, means for slitting the sheet lengthwise into strips along a line lengthwise of the sheet and intersecting said apertures to form one or more adjustment rows of laterally projecting tabs, means for tions of uniformlength, andfeeding means I, for exerting a pull on the advancing end of the sheet to prevent accumulation of slack, and for advancing the successively formed strip sections at a faster rate than the body of the sheet, including a pair of superposed rotary members between which said sheet passes, and having a rate of surface spee'd slightly greater than the rate of surface speed of the body of the sheet.

4. A machine for making shingle strips including means for forming a row of apertures in,a sheet of material, means beyond said first mentioned means for slitting the sheet lengthwise into strips along a line lengthwise of the sheet and intersecting said apertures to form one or more rows of laterally projecting tabs, means independent of said first mentioned means for subdividing the strips transversely into sections of uniform length, including a rotary cutter member having a blade extending lengthwise thereof, and a rotary platen member against which the blade acts.

. 5. machine for making shingle strips including means for forming a row of apertures lengthwise of a sheet and intermediate of its side edges, a. circular rotarycutter for slitting the sheet into sections along a line intersecting said apertures to form a row of laterally projecting tabs, 9. air of rotary coacting members for subdlviding said strips into sections, and stationary supporting members extending alongside of said slitting cutter to said rotary members and over which said tabs slide.

. 6. A machine for making shingle strips including means for forming a row of apertures lengthwise in a sheet of material and intermediate of its side edges a pair of rotary overlap ing shear mem ers beyond said means an, mounted on spaced parallel shafts for slitting the sheet into strips along a line lengthwise of said sheet and intersecting said apertures to form a. row of tabs, and supports exlaterally projecting tending between said shaftsand alongside of said shear members to support the free ends of the tabs as soon as they are formed.

7. A machine for making shingle strips including means for forming a row of apertures lengthwise in a sheet of material and intermediate of its side edges, a pair of rotary overlapping shear members mounted beyond said means and on spaced parallel shafts for slitting the sheet into strips along a line lengthwise of said shaft and intersecting said apertures to form a row of laterally projecting tabs, and supports extending between said shafts and on opposit'e sides of said shear members to support the free ends of the tabs as soon as they are formed.

8. A machine for making shingle strips including means for formin a row of apertures in a sheet of materiafi means beyond said first mentioned means for slitting the sheet lengthwise into strips along a 'line lengthwise of the sheet and intersecting said apertures to form one or more rows of laterally projecting tabs, means beyond said sec- 0nd mentioned means for subdividing the strips transversely into sections, and a table or platform between said slitting means and said cut oil means, and having portions projecting lengthwise of the sheet alongside of the slitting means.

9. A machine for making shingle strips including means for forming a row of apertures in a sheet 'of material, means beyond.

said first'mentioned means for slitting the sheet lengthwise into strips along a line lengthwise of the sheet and intersecting said apertures to form one or more rows of laterally projecting tabs, means beyond said including means for formin I apertures in a sheet of material, means for tures in a sheet of materia ,,means beyond said first mentioned means for slitting the sheet lengthwise into strips along a line lengthwise of the sheet andintersecting said apertures to form one or more rows of laterally rojecting tabs, means beyond said second mentioned means for subdividing the strips transversely into sections, and a table or platform between said slitting means and said out as means, and havin a pair of fingers projecting between the s afts of theslitting means and alongside of the shear members, the fingers and shear members being adjustable transversely. of the machine.

11. A machine for making shingle strips a row of slitting the sheet lengthwise into strips along a line lengthwise of the sheet and intersecting said apertures to form one or more rows of laterally projecting tabs, means for subdividing the strips transversely into sections along lines intersecting certain only of said "apertures, said means including blades of lengths corres onding to the width of the portions of t e sheet transversely thereof upon opposite sides of an aperture.

12. A machine for making shingle strips including means for formin a row of aper-- tures in a sheet of materia means beyond said first mentioned means for slitting the sheet lengthwise into strips along a line lengthwise of the sheet and intersecting said apertures to form one or more rows of laterally projecting tabs, and means beyond said second mentioned means for subdividing the strips transversely into sections, said means including separate blades for severing the material at opposite sides of an aperture.

13. A machine for'making shingle strips including means for forming a row of apertures in a sheet of material, means for slitting the sheet lengthwise into strips along a line lengthwise of the sheet and intersecting said apertures to form one or more rows of laterally projecting tabs, means for subdividing the strips transversely into sections, said means including separate blades for severing the material at opposite sides of an aperture, and a sheet support extending lengthwise of the sheet past said'blades, and between the s aced ends thereof.

14. A machine or making shingle strips including means for formin a row of apertures in a sheet of materia means beyond said first mentioned means for slitting the sheet lengthwise into strips along a line lengthwise of the sheet and intersecting said apertures toform one or more rows of laterally projecting tabs, and means beyond said second mentioned means for subdividing the strips transversely into sections of uniform length, said aperture-forming means and said sub-dividing means being arranged alternately across the width of the sheet. I 15. A machine for making shingle strips including means for forming a row of apertures in a sheet of material, means for slitting the sheet lengthwise into strips along a line lengthwise of the sheet and intersecting said apertures to form one or more rows of laterally projecting tabs, and means for subdividing the strips transversely into sections, including a pair of rotary coacting members having blades extending lengthwise thereof, said blades and aperture forming means being arranged alternately in respect to the width of the sheet.

16. A machine for making shingle strips including means for forming a row of apertures in a sheet of material, means for slittin the sheet lengthwise into strips along a line lengthwise of the sheet and intersecting said a ertures to form one or more rows of latera ly'projecting tabs, means for subdividing the strips transversely into sections, including a pair of coacting members havin blades extending len thwise thereof, said lades' and apertureorming means being arranged alternately in respect to the width of the sheet, and tab supporting means extending lengthwise of the machine between the axes of said members and between the ends of the blades thereof.

17. A machine formaking shingle strips,

fleeting .tabs, means for subdividi strips transversely into sections, inclu mg a' strips having including means for forming a row of apertures in a sheet of material, means for slitting the'sheet lengthwise into strips each having one or more rows of laterally pr}?- air of members having blades extending lengthwise thereof, said blades and apertureforming means being arranged alternately in respect to the width of the sheet, and belts extending lengthwise of the sheet between said members and in alignment lengthwise of the machine with the aper ture-forming means to support the tabs during their advancement 18. A machlne for making shingle strips I including members for forming a plurality of apertures in the sheet in a row lengthwise of the sheet, means beyond said members for slitting the sheet along a line 1ntersecting said row of apertures to form strips having laterally facing tabs between successive apertures, cut off mechanism beyond said means for subdividing said strips into sections, and means for supplortm the tab ends as the strips advance t roug the cut-ofi mechanism.

19; A machine for making shin le strips including rotary coacting mem ers for forming a plurality of apertures in the .sheet and spaced apart in a plurality of rows lengthwise of the sheet, meansfor slitting the sheet along lines intersecting each longitudinal row; of apertures 'to form laterally facing tabs between successive apertures, cut oil meehanismineluding a rotary member having a series of blades extending lengthwise thereof, said blades being of lengths corresponding to the distances transversely of the sheet between the apertures of the several rows, and

said blades being arranged to sever the sheet along lines intersecting said apertures.

20. A machine for making shin 'le strips including rotary coacting members for forming a plurality of apertures in the sheet and spaced apart in a plurality of rows lengthwise of the sheet, means for slitting the sheet along lines intersecting each longitudinal row of a ertures to form strips having laterally faelng tabs between successive apertures, cut ofi mechanism including a rotary member having a series of blades extending len hwise thereof, said blades being of lengt s corresponding to the distances transversely of the sheet between the apertures of the several rows, and said blades being arranged to sever the sheet along lines intersecting said apertures, and supports for said tabs beyond said out off mechanism and extending be- I tween the spaced ends of said blades.

21. A machine for making shingle strips including means for forming a plurality of apertures in the sheet and spaced apart in a plurality of rows lengthwise of the sheet, means for slitting the sheet along lines intersectingeach longitudinal row of apertures to form strips having laterally facing tabs between successive apertures, cut off mechanism including a series of blades of lengths corresponding to ,the dr tances transversely of the sheet between the apertures of the several rows, and said blades being arranged to sever the sheet along lines intersecting said apertures, and

belts extending through the cut or mechaof said blades for supporting and conveying the tabs, a drum beyond said cut oil mechanism and over which ,said belts pass, said drum having peripheral grooves receiving said belts, and a rotary member coacting with the portions of the drum between said grooves and tending to'advance the sheet at a slightly faster rate than the rate of travel of the belts.

23. A machine for forming shingle strips including rotary coacting members for forming a row of apertures as the sheet advances between them, a pair of rotary coactingmembers for slitting the sheet lengthwise, a pair of coacting members for subdividing the sheet transversely into sections, and a air of rotary coacting feeding members Vond the other members'in the direction a of travel of the sheet, said fecding members and slitting members having a higher peripheral speed than the other members.

24. 'A machine for making shingle strips including means for feeding a sheet lengthwise, means for cutting said sheet into a series of strips extending lengthwise of the sheet and each presentinglaterally extending projections, a pair of rotary coacting members for subdividing said strips into sections and including a mandrel member and a plurality of blade members, the blade members being spaced apart at their ends and adapted to cut the strips along lines connecting the innermost portions of the spaces between said projections.

25. A machine for making shingle strips ing projections, a pair of rotary coacting;

including means for feeding a sheet length- Wise, means tor cutting said sheet into a series of strips extending lengthwise of the sheet and each presenting laterally extending projections, a pair of coacting members for subdividing said strips into sections, and including a plurality of blade members spaced apart at their ends and adapted cut the strips along lines connecting the innermost portions of the spaces between said projections, and conveyor belts extending through between said coacting members for supporting the projections during the cutting of the body portions of the strips.

27. In combination, means for feeding a sheet endwise, means for cutting it into strips each strip extending in the direction of travel of the sheet and presenting-laterally facing pro'ections, a pair of coacting members for su dividing the strips into sections, and conveyor belts extending between said members. f i

28. A machine of the class described, including a pair of slitters for subdividing a sheet ;lengthwise into strips, '3; pair of coacting members having blades extending lengthwise thereof and spaced apart endwise and on opposite sides of the plane of the slitters, and-a conveyor belt extending from said slitters between said members, and'of less width than thespacing between the ends of said blades.

29. In a machine of the class; described, rotary coacting members for cutting transversely extendin rows of slots in a sheet of material, a pair of rotary coacting members arranged beyond said first mentioned members and-haying blades spaced apart endwise fer forming a series of slits transveisely of the sheet and connecting said slots, and supports extending betweenfihe {last mentioned members and between the spaced ends of the blades thereof. 7

Signed at Camden in the county of Camden and State o f'New Jersey this 18th day of December A; D. 1922.

SAMUEL M. LANGSTON.