Патент USA US2111565код для вставки
March 22, 1938.. Q T_ L'EMERICK METHOD OF SURFACING ROOFING MATERIAL Filed Nov. 25, 1933 2,111,565 2,111,565 Illlh'll‘llllilm @F SlURlli‘dCllNG htlllllilli'lhlli llllll'll‘lE Rlllillh lUharles 'll‘. lllimericlr, Rutherford, N. .l., assignor to The Fatent and licensing ?orporation, New ‘l‘forlr, lil. ‘lL, a corporation of Massachusetts Application November 23, 1933, Serial lilo. 699,31’? 5 lllaims. (Cl. Ell-Jill) This invention relates to a method of applying granular surfacing material to a face of a sheet of roo?ng material or its equivalent. _ it is an object of the invention to provide means for facilitating the manufacture of roo?ng elements such as strip shingles or individual shin gles having areas of distinctive colors on the por tion which is to be exposed to view when the ele ment is laid with others in overlapping relation ill on a roof, and to provide for the economicalem ter, be avoided. It is an object of the present invention to utilize in a convenient and econom ical manner the commingled vari-colored granu lar matter recovered from the surface of a sheet of roo?ng material or the like. According to the invention, this object may be attained by de ployment of the surplus granular material which positing on predetermined areas of a sheet of sticky roo?ng grits of different colors for different areas comprising portions of the face of the sheet, recovering the excess non-adherent grit from these areas and depositing the recovered grit of is deposited on such areas. commingled colors exclusively on the areas not In manufacturing roo?ng units such as strip previously covered. For the protection of the outer face of a roo?ng shingles, it is customary to saturate a sheet of unit, such as a strip shingle or individual shingle, 15 lili roo?ng felt with asphalt of suitable character istics. This saturated sheet is coated with an it is desirable that the entire outer face, i. e. the adhesive waterproof material such as blown or face which is uppermost when the element lies oxidized asphalt. While this coating layer is on a roof, be entirely covered with grit or equiva lent granular matter. However, as far as color stlclry, it is surfaced by the application of granu lar material such as crushed slate, sufficient of effects are concerned, the only portion of the the granular material being partially embedded outer faceof the roo?ng unit which matters is that portion which is exposed to view when the in the sticlry asphaltic layer to form a practical ly continuous protective surface layer. In order roo?ng element is laid with others in overlapping to ensure the formation of such a surface layer, 25 it is necessary to deposit on the coated face of the sheet an excess amount of the granular ma terial. Where the surfacing material used on the sheet is of a single color, the excess grit which falls to adhere to the asphaltic layer is subse w uuently recovered and re-deposited upon the sheet so that there is substantially no loss of grit. Owing to a great demand for roofs of variegated colors, considerable quantities of roo?ng ele ments, such as strip shingles, are produced hav lug on the exposed portions thereof areas of different distinctive colors, so that, when such roofing elements are laid upon a roof, the roof as a whole presents a vari-colored appearance. It is evident that, in order to produce areas of dif Alli ferent distinctive colors on a roo?ng unit, it is necessary to apply separately to each area gran ular matter having the particular color desired for such area. This can be done with little diffi culty, but, inasmuch as there must be deposited 45 upon each such area more granular material than will adhere to the sticky face of the area, the problem of the ultimate disposition of the excess non-adhering granular matter from dif ferently colored areas arranged longitudinally of 50 the sheet has been a serious one since it is im practical to recover separately from each colored area the granular matter of the several colors. That is, in recovering loose grit from the surface of a sheet thus treated, the commingling of grits 55 of the various colors cannot, as a practical mat courses on a roof. Hence, according to the pres ent invention, these portions of each roo?ng ele ment may be treated differently from the portions of the element which are covered and hidden from view when laid. Thus the exposed portions of the roo?ng element are surfaced in such a way as to provide areas of distinctive colors, the com 30 rningled excess grit being employed to surface the covered or hidden areas of the roo?ng unit where the matter of color is of no importance. Furthermore, if desired, some of the mixed grit may be used on areas to be exposed to provide an 35 additional color for such areas. For a more complete understanding of the in vention, reference may be had to the detailed description thereof which follows and to the dis 40 closure thereof on the drawing, of which Figure l is a side elevation of mechanism em? bodying the invention. Figure 2 is a section on the line l—2 of Figure 1. Figure 3 is a section on the line ii-—i of Fig ure 1. Figure 4 is a perspective view of a sheet of roo?ng material, together with portions of the apparatus illustrated in Figure 1. Figure 5 is an elevation of a strip shingle made 50 in accordance with the invention. In the drawing, a sheet of roo?ng material is indicated at it, this sheet being of any suitable material such as the customary roo?ng felt which has been impregnated with asphalt or other water-resistant material. The sheet it may be a 56 was single continuous sheet separate blanlt l’ edge in plane and _ ., , conveyor belt (not sl'lownl. or a composite sheet " ‘ of rooli arranged ',o e be passed between a coated. on its upoc. suitable waterpro e. ‘L r 0.1. roll; t1’ , w " - coating device if; or doctor lf‘i may be provid , ensure an nt to the ‘.rce c . distribu ' r ale hopper tion of the coating over the face of u The sheet ther passes bc‘l adjac nt to the roll _ Figui or? spouts till, ill and it?) As indicated I‘. allty 4, each set of spouts may include a individual spouts spaced from each ‘ the . which extends across the a this hop de?ecting VQ'lES ill arranged over the width. of the sheet, so that, i open, 29 any single se 'ere continuousl ""aveiing anulai-r ,0 ben matter g alinedor' ' faced by the spouts " completes the face ~; the sheet l.‘ terl‘nittently opei ‘ e direction 1 sheet so that all the spouts in any on deposit grit only on an area defined I y o " " ’-' 1‘ove the spouts are respect , ,the i 30 in the series ' tho greater or lesser l .er may b . several A single hopper may be employed ‘for ea bands spouts, or, if desired, a separate hopper provided hoppers for each individual spout. the heig Each of these hoppers may hold grit of a s color, or may be divided with suitable partitions into com,‘ partments for grits of different colors. Grit may be intermittently showered from these hoppers on a sheet traveling therebeneath by any suitable mechanism such as that described and illustrated 45 in Letters Patent No. 1,791,560 granted to Heppes on February 10, 1931, the mechanism for control ling the grit being per se no part of the present invention. , As indicated on the drawing, valves or equiva lent closure means are provided for the several spouts. For convenience, the valves in the spouts of each series are mounted on a common shaft ' 40 so as to operate in unison. Each shaft 40 may be rocked by suitable mechanism such as a lever arm 4| which extends radially from the shaft 40 and is connected by a rod 42 to a cam follower 43 riding on a cam 44, there being a separate cam for each of the shafts 40. The cams 44 may be mounted on a common shaft 45 which is rotated 60 by any suitable mechanism in synchronism with ts , n; 2 " H?llg a wid 1 I he element which is to be out from the shr" . bands between the bands to are preieably oil‘ a width equal to twice the height of the portion of the roo?ng unit which is to be overlapped when. on the roof. 'Thus, if the sheet ID is to be cut into multi~tab strip shingles of convenient shape,v suitable slots E35 may be cut across each band 25 to form cut-outs in the finished strip shingle which will define the shingle-simulating tabs along the weather edge of the strip shingle. The operation of the spouts 20, 2| and 22 can be synchronized with the operation of the slot cutting mechanism in such a manner that the slots will coincide with the color boundaries be tween successive color areas in each of the bands 25. In such case each tab of the strip shingle will present a single solid color area. On the other hand, the color areas may be formed with out regard to the location of the slots which either have been or are to be cut in the sheet, in which case the resulting strip shingle may have some such appearance as that indicated in Figure 5. After the slotting operation, the sheet In may be longitudinally slit, some of the slits 66 being cut so as to intersect the rows of slots 65, other in the corresponding hoppers to be deposited in slits 6'! being cut on the medianlines of the bands 50 between successive bands 25. The strip shin gles may then be severed from the sheet as by transverse cuts 68. It is evident that the strip shingles thus cut from the sheet will be substan tially as illustrated in Figure 5, the exposed por separate areas on the moving sheet, the areas of tion of the strip shlngle having areas. of distinc grit, formed by spouts which are alined in the direction of movement of the sheet, being con tiguous so as to form a. continuous grit band 25 on the surface of the sheet, as indicated in Figure 4. Thus each band 25 is composed of successive tive colors thereon, the upper or covered portion ‘H being surfaced with grit in which the colors are commingled. The particular shape of roo?ng element illustrated in Figures 4 and 5 is by way of illustration only, it being evident that the contiguous areas of different colors, the several bands 25 being spaced from each other by inter 75 mediate areas 50 on which no grit is deposited by ployed in the manufacture of individual shingles or multiple shingles of other shapes, the inven the driving means by which the sheet I0 is ad vanced. By means of the cams 44 and the ap paratus operated thereby, the spouts 20, 2| and 22 can be intermittently operated by their cams 65 in such a manner as to cause the granular matter process of the invention can be similarly em airlines tion heing characterized hy the application of diiierently colored granular material to iorin different colors, collecting and mixing the excess granules irom the spaced lanes, and depositing‘ areas oi diii’erent colors on the exposed portion the mixed excess exclusively on the areas adja only oi’ the roofing element, and the application cent to said lanes. to the covered portion oi the roofing element oi 3. [-l. method of applying colored granulated slur-n granular material oi“ cominingled colors consist , facing material to asphaltic roo?ng, which coin ing oi excess material recovered from the differ ently colored areas. , \ ilihe invention may also he applied to the man uiacture oi cross-cut strip shingles irom sheet roofing, as hy depositing diiierent grits oi’ dit ierent colors in. longitudinally extending, spaced hands or lanes on the face oi the sheet, each hand or lane preierahly consisting oi successive 15 areas of different colors, recovering the excess grits and depositing the recovered grits oi com mingled colors exclusively on the intervening hands or lanes to complete the surfacing oi? the sheet, the sheet heing thereafter cut transversely to term shingles or other equivalent rooting units. in such rooting units, some oi the exposed areas would show the mixed or neutral color which would he diii'erent from any of the colors original~ ly applied and which would therefore add to the ‘variety oi colors exhihited hy the roo?ng units when laid. it is evident that various modifications and changes may he made in the method and appa ratus descrihed without departing irorn the spirit 30 or scope oi the invention as defined in the fol lowing claims. ‘ I claim: i. ii method or‘ applying colored granules to asphaltic rooting, which comprises depositing on said rooting spaced parallel hands of colored granules so as to i'orni areas oi di?erent colors, collecting and mixing the excess granules irom the spaced hands, and depositing the collected granules exclusively on the remaining areas oi said roo?ng adjacent to said hands. 2. A method of applying colored granules to asphaitic roofing, which comprises depositing on said roo?ng spaced parallel longitudinal lanes oi’ granules, each oi’ said lanes having areas oi prises depositing an excess of surfacing material oi‘ different colors on predetermined areas oi’ only those portions of the roo?ng which are to he exposed to view when laid on a roof, remov ing irorn said areas only the granules nonnati herent thereto, and mixing and applying the re moved granules to the remaining areas of said roo?ng. Mi ' Steps in a method of making asphaltic roci~ ing elements, which comprise advancing a sheet oi adhesively coated roo?ng material, depositing an excess of granular surfacing material of dii= ierent colors on predetermined areas only oi the portions of said sheet which are to he exposed to view when the roofing elements out there from are laid on a roof, progressively depositing on the remaining areas only of said sheet mined granules recovered from preceding portions of the sheet, pressing the granular matter against the face of the sheet, and recovering from the pressed face of the sheet and mingling together the non-adherent granules thereon. 5. Steps in the method of making roohng ele ments, which comprises advancing a sheet of Sill) adheslvely coated asphaltic roofing material, showering on parallel spaced areas of said sheet excess granular grit of different colors so as to form bands consisting of successive contiguous patches of distinguishing colors, said hands alter nating with hands of adhesive surface, collecting and showering the excess grit on the hands of adhesive surface to complete the surfacing oi the adhesive i‘ace, pressing the surfaced sheet, recovering the loose granules ‘from the pressed iace ior recirculation, splitting the sheet along the median line of each oi said hands, and sever ing individual elements from the slitted sheet. (SIS T. LIMERICK.