US2272032A - Shingle - Google Patents

Description

Feb- 3, 12942- y c w. BROWN v 2,272,032

sHINGLE Filed out. 2e, 1939 INVENTOR ATTORNEYS greatly reduced.

Patented Feb. 3, 1.942y

Clinton W. Brown, Niagara assigner I turing Corporation, Tonaf to National Manufac Wanda, N. Y.

n Application October 26, 1 9o1aimks. (online- 5) The present invention relates to `roofing material and has particular .relation to strip shinglescomposed of a felt base impregnated and covered with asphaltic material. f

According tothe invention each shingle strip, comprising a body'portio'n with av plurality of tabs along its butt edge,may be made of constant thickness along any liner' from its bottom redge to its top edge, that is, from the butt edge to the opposite edge, but of varying thickness Ifrom* one side edge to the opposite side' edge, being of maximum thickness at the central-portionsof the adjacent tabs.

When laid upon a roof or other surfaca'the thick portions of one strip will nest with the thin portions 'of the strip of sub-,jacent and super-k jacent courses of shingle strips, with the result thata large portion of the thick, heavily vcoated parts of each shingle stripwill be exposed, while the thin, relatively lightly coated partsfof each stripv will becovered byr shingles of adjacent courses, thereby affording the protection and long wearing qualities fof any heavily coated roofing material with a substantiallyminimum quantity ofy material and at low cost. f

Another adv'antagetobe o of construction is that thek exposed tabs, being of increased thickness, throw ydeeper shadow lines on the roof and thus present a more pleasing appearance than do thel ordinary type shingles of uniform thickness; land at the same time, due Ato the nesting of .the` thick and thin portions of super imposed shingles, a substan- .tially'flat roof covering is provided. Further-K more, since each tab of the shingle strips -isyre-` tabs, and tapering to minimum thickness between ses', serialN. sottisey n 1 lower edges I2 and I3 with the recessesr I4` in the upper edges'yin vertical alignment with tabs I5-1pon vthe lower edges.v The body is of substantiallyfuniform thickness along lany vertical L line from bottom orbuttedg'ev I3 to the upper edge -'-I2, buty varisrin thickness from one "side edge IB to the Opposite side edge Il, being of maximum thickness ,in vertical bands I8 which extend from thecentralpo'rtions of recesses I4 to the central edge portions of tabs'l 5, and being of minimum thickness in vertical bands I9 at the sidev edges 4of the strip and in vertical alignment with recesses 2l -in the lower-edge I3 between tabs I5. The strip preferablyjtapers in'thickness iniyerticalbands 22 between adjacentbands I8 and I9. The .strip shinglesare preferably formed as follows:` webv of rooiingffeltfis impregnated and then heavily coated with Aasphalt or similar bituminous?v materiali Then the ,coated webis 'scraped or rolled, yor both., to produce contiguous thick, tapered, and thin bands'lon'gitudinally of k the web, vcorresponding tobandsfwlii, 22'and I9 in brained by this type the finished shingles. Such bands maybeV produced by passingthe heavily coated .webund'er a scraper, to remove excess lceatihng material; and then between yrolls having aA contour comple--l mentary to thecross vsection of the shingle shown in Fig. 2. i y

The variati "nein thickness mais tn' web may be produced by scrapingthe coating on the underinforced by a thickened portion or rib extending longitudinally thereof, any' tendency of` lthe `errposed tabs to curl or to blow up in strong winds, is

jects and advantages will l of the typical embodiment lof the invention that is shown in the accompanying drawing, wherein: Fig. 1 is a plan view of a strip shingle unit; .Fig 2 is a transverse vertical section through the unit;

Fig, 3 is a fragmentary front elevational view sholwinlg forward edge surfacesv of a pair of shingle units in nestedv relation; and, y

Fig. 4 is a plan view showing a plurality of shingle units of adjacent courses as they would be laid upon a roof.

As shown in the draw ing each shingle strip may consist of a body having serrated upper and neath side `ofjtheweb to a uniform thickness, and varying thethicknessjof thev coating on the top; the top being the sidefthat receives the iinishing surfacing material and is kthe side exposed to the weatherpwhen tne shingles are'laid, or the variation in thickness can be obtained by maintainingauniform lthickness in thetop layer .of coating asphalt, and Avarying the thicknessof the coating on the underneath side, or bjoth top and bottom coatings can bevar-ied in thickness, "In'practice, the last named rnethodhasfbeen rfound most satisfactory. In using. anyi of the three methods, I find it preferable to keep theweb of rco-iing'f'elt y uniform vin thickness.

Thereafter any suitable lsurfacing 23,' such, kfor i I example as crushed slate, maybe applied. Such -material is either not appliedy to marginal portions of the web, or is scraped therefrom after the l f surfacing operation, so that the sideyedge por- V`T'he nished web of rooflng mate tions 24 of the finished shingle strips win be free ofthe surfacing material. y

rial may then be cut transversely, along serrated lines, toproduce individually the shingle strips with serrated upper and lower edges I2 and I3.

In laying the shingle strips upon a roof or other surface, the side edge portions 24 of adjacent strips of the same course are preferably overlapped, and strips of adjacent courses are staggered, as shown in Fig. 4, so that the tabs I5 of one course are in substantial alignment vertically with ythe recesses 2l of super-jacent and sub-jacent courses, resulting in a roof covering of hexagonal design when the tabs are of the form shown in the illustrated embodiment.

As shown in Fig. 3, the thick, thin and inclined portions of any one shingle nest with and complement the thin, thick and inclined portions, respectively, o-f an adjacent shingle. As shown in Fig. 4 the portions or bands I9 of each shingle strip, including the overlapping portions 24 are covered by adjacent courses of shingle strips, While almost the entire area of each thick portion or band If8 is exposed.

While -the invention has -been illustrated and described with reference to strip shingles, it will be yunderstood that it may be applied to single shingles also, such a shingle having, forfexample, only one tabI and marginalportions 24 on each side thereof.

The drawing shows onlyone design of shingle, but it is to be understood that the linvention lends itself to other designs known to the art, as for example the hexagonal strip shingle, and also square tab strip shingle; in fact, -t can vbe applied 'to any strip or individual shingles that are 4laid inoverlapping courses, whereinzthe overlying -shingles are offset horizontally from the course below the distance of one-half the-width of one tab. v

It willbe understood further that the embodiments-of 4the invention illustrated and described herein are merely exemplary of `the inventive principles involved, and that these principles may be otherwise Yembodied withoutdeparting from the spirit of the `invention lor .the scope of the appended claims.

I claim:

.1. In a strip shingle, a bodyfhaving tabs-along the lower edge A.thereof Aand. corresponding recesses along the `upper edge thereof, said body being of substantially uniform thicknessbetween its upper and lower edges-and -of varying thickness Abetween its side edges, kbeing of maximum thicknessat central vportions of the tabs andof minimumthickness atportions between said tabs.

2. In a strip shingle, `a-body having tabs along the loweredge thereof, said body ,beingof varying vthickness from side edge to side edge, being thick ,in bands-extendingbetween its upper and lower .edges .through the central portion of said tabsand thin ,in bands extending between said l4913er and lower .edges through `points between saidtabs.

3. In a shinglea body having a tab along the lower edge thereof and a corresponding recess 'tapering to maximum thickness at points disalong the upper edge thereof, said body being of posed substantially centrally of the tabs.

5. In a roof construction, a plurality of courses of shingles, the lshingles of each course having spaced'tabs and varying in thickness from side to side with the portions thereof adjacent the 'tabs relatively vthick and the portions between said tabs relatively thin, the thick and thin p0rtions of the shingles of one course being nested .with the thin `v and thick portions, respectively, of shingles ,of `an adjacent course.

`6. In a roof construction of hexagonal design composed of courses of strip shingles' having tabs at their lower ledges with recesses between said tabs,;said :shinglesfbeing relatively thick in vertical bands extending between the upper and lower vedges thereof in vertical alignment with central portions of said tabs-,said shingles being relatively thin -in .vertical Lbands in vertical alignment :with said recesses, the shingles of one course lhaving the thick and -thin bands thereof in register with lthe thin and -thick bands, respectiyelnyhgfmshingles of an adjacent course.

'7. In a shingle, a body having a tab on the lower edge thereof, said body including the tab tapering in thickness between the side .edge 'portions of the shingle :providing a -vertically extending zone of maximum thickness, and the centralportion of saidgtabbeing in said zone.

`8...[n a shingle, a body having a tab on the loweredge thereof', 'said "body including the tab tapering in thickness from the side edge portions of the .shingle toward A,the central `portion thereof, being Vof zminimum `thickness in vertical zones adjacent the side edges thereof and of maximum thickness in `a vvertical zone between zones of minimum thickness, andthe central portion of said rtab being fin-said -vertical'zone of maximum thickness.

.9. Ina-roof construction, ya'plurality of courses of shingles, each shingle having a tab on .the lower edge thereof, and yeach shingle including the tabthereof-varyinginthickness from side to siderof `the shingletoprovide alongl each course alternate vertical Vzones `of Vgreater and lesser thickness, the centralportion-of vthetab being in the zone of greater thickness, the thick 'and 'thin Zonesof the shingles of one course being nested with the thin and thick zones, respectively, of shingles of an Aadjacent course, and said tabs being-expesedandoverlying the thin Zones `of a subjacent course of shingles.

YCLINTON W. BROWN.

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