US1264831A - Method of making prepared roofing. - Google Patents

Description

W. F. McKAY. METHOD 0E MAKING PREPARED RooFlNG.

APPLICATION FILED OCT. I9, 1915.

v Patented Apr. 30, 1918.

EQ 3 SHEETS-SHEET l.

W. F. MCKAY.

METHOD 0F NIAKING PREPARED ROOFING.

` APPLICATION FILED ocTIIs. I9I5.

. Patented Apr. 309 19H8.

3 SHEETS-SHEET 2.

IIIIIWAII "II?" illiiliilllmllllllll D' W. F. MCKAY.

I METHOD 0F MAKING PREPARED ROOFING. l

Y APPLICATION FILED OCT. I9. 1915. mm Patented Apr. 30,1918.

3 SHEETS-SHEET 3.

mmmiuqpnmminmm 53 WILLIAM F. MOKAY, 0F LA GRANGE, ILLINOIS.

METHOD 0F MAKING PREPARED ROOFING.

Specification of Letters Patent.

Parenteel apr. so,` raie.

Original application led May, 5, 1913, Serial No. 765,445. Divided and this application led October 19,

To all whom it may concern.'

Be it known that I, `W1LL1AM F. MGKAY,

a citizen of the United States, residing at4 La Grange, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Methods ofMaking Prepared Roofing, of which the following is a specification. My invention relates to improvements in prepared roofing material.

One of the objects of my invention is to provide a method for the manufacture of roofing material which shall have the appearance of tile or slate when applied to the color in imitation of separate pieces or plates of slate or tile as they appear when laid upon the roof,

In manufacturing ymy improved rooting I use a machine through which the felt is con* tinuously passed. It enters the machine from the roll at one end and is discharged therefrom at the other end in the finished product.

In the drawings- Figure 1 shows a central longitudinal section of a machine of this character;

Fig. 2 is a plan View thereof;

Fig. 3 is an enlarged detail of the construct-ion, part thereof being in section;

Fig. 4 is an enlarged detail in plan view of part of 'the structure; I

Fig. 5 is an enlarged sectional vlew of part of the machine taken on line 5-5 of Fig. 2; Y

Fig. 6 is a plan view of a part of the strip as it passesthrough the machine; u

Fig. 7 is a front view of the roof'as it will appear when my roofing materlal` 1s applied thereon; and

Fig. 8 is a sectional elevation of a portion of the roof and the roofing material as it 1s applied.

In all the views the same reference characters are employed to indicate similar parts.

rIhis is a divisional application from my the Serial No. 56,685.

copending application, Serial No. 765,445, filed May 5th, 1913, for roofing material- 10 is ya roll of felt or other suitable fabric before it passes through the machine, 11 is the felt sheet passing through the machine, and 12 is a tank containing asphaltum 13, or thc like, adapted to be heated by steam coil 14. The felt sheet passes over the rollers 15-15 and under the rollers 16'16 so as to be completely submerged in the coating material contained in the tank 12. 'Ihe material contained in the tank 12 may be of a compound that is adapted readily to saturate the felt and may be heated to such a deety gree as is found Amost expedient for this purf' pose. 17 and l7aare adjustable doctors or Scrapers for scrapingl o f the excessive material from the sheet of felt as it passes through the tank. The sheet now passes through another tank 18 which contains a compound 19 made, preferably, of a mayterial to withstand a greater temperature to any desirable temperature, and a doctor l or scraper 23 is adjustable to bear with greater or less pressure against the under' surface 0f the strip 11 to remove more or less of the deposited material from the under surface of the sheet. A blower 24 is adapted to cool the sheet, or the upper surface thereof, as it passes out of the tank 18 and before the deposit of any material thereon. The blower is driven from the pulley 25 by the chain or belt 26. Followingthe blower is a. series of hoppers 27 each provided with reduced outlets 28 and each containing a supply of sand or. other suitable granular or flake material 29. The apices or discharge -openings are spaced apart a distance corresponding with the distance between the stripes that are to be made on finished product. Any convenient method of controlling the liow of the-sand from the hoppers may be employed. The sheet l1 moves forward toward the right hand side, being driven by the machinery illustrated, consisting of the rollers 36 and 37 driven by the traveling apron 80 carried by the chain 81 that passes overa sprocket` wheel 82, secured to the shaft 83. A belt 85 drives the wheel 84 and thus power is supplied for moving the fabric through the machine. While so moving, small and uniform streams or deposits of sand are made upon the upper surfaces of the sheet. These lstreams of sand pass underneath the hopper 30 containing a rotating perforated drum 31.

The drum is rotated by means of a chain 32 from the driving shaft 34 which contains a driving wheel 35.

similar material, and as the sheet passes under this rotating drum a thin coating of slate is deposited upon the upper surface of4 the sheet. The little ridges or mounds of sand prevent the slate from sticking to that portion of the felt 4fabric covered by the sand.

After the slate has been deposited upon the sheet it is then passed between rollers 36 and 37 which cause the finely divided materials to be partially embedded into the upper mastic surface of the roofing material. The sand, having been deposited upon the material, before the slate, is embedded into the mastic material and the color of the asphaltum strikes through the sand making a relatively black stripe. The slate between the stripes, however, is not so discolored and retains its natural. appearance. The black intermediate surface being en tirely and evenly covered by the slate flakes does not affect the slate color and therefore meansof a screw 38, it passes under a roller 39 and then over a relatively large wheel 40.

' This wheel may be located at some remote point so that considerable material may be included between the wheels 39 and the rollers 41 and 42 between which the sheet again passes. The object of passing the sheet over j the wheel 40 is to give it time to cool before it passes into the vat 43 which contains a water bath 44. Theroller 45 has a tendency to submerge the sheet in the water but it is freely movable into vertical position by the sheet.

After the sheet passes through the water vat it then passes between the driving rollers 46 and 47 which are also adjustable by the screw ,tensioning device 48.

After the sheet has been made, in the manner heretofore described,` it may be de- The drum 31 is filled i with finely divided slate Hakes, or other sirable to cut it into strips of uniform lengths, transversely of the sheet. I, therefore, kfor this purpose, provide a cutting machine 49 driven by belt 50. The driving shaft 51 upon which is mounted the driving pulley 52 rotates constantly. It carries a spur gear 53 which meshes into a gear wheel 54 that is carried on a shaft 55. The wheel 54 also carries the crank arm 56. Pro'ecting upwardly from the table of the machine are knife guides 57 and 58 within which reciprocate a frame 59, which carries a cutting knife blade 60 and a kerting blade 6l. These blades are adjustable in the frame by means of screws 62. A slotted link 63 connects the frame 59 to the crank arm 56. There are two such slotted links, one on each side of the frame, and there are also two crank arms 56 properly driven by the shaft 55. The rollers 46 and 47 are driven by means of two gears 64 and 65 carried by the shafts 67 and 68 respectively. These rollers are rotated periodically by means of the ratchet wheel 69 that is secured to the shaft 68. The slotted llink 63, at its lower end, is pivotally connected to a link 70, and this link in turn is connected, as at 72, to an arm 71, which swings on the' shaft 68. The link 71 carries a pawl that engages in the ratchet teeth of -the wheel 69. A stop pawl 74 prevents the return of the ratchet wheel when moved forward by means of the p'awl 73. Now when the shaft 55 is rotated anti-clockwise the crank arm 56 is raised and thereby, through the connecting link 63, the knife frame 69, carrying the knife blades 60 and 61, is raised in the frame 67 and 68 at the same time the ratchet wheel 69 is rotated anti-clockwise, by means of the pawl and ratchet connection, and the rollers 46 and 47 are rotated in such direction asto cause the strip 11 to be moved to the right and to project beyond the blade 60 to the extent desired for the proper width of the finished strip. Vhen the crank arm 56 has arrived at its highest position the knives will have reached the uppermost p0- sition in the guides 57 and 58 and the sheet 11 will have been moved to its fullest extent under the knife. Now when the shaft 55 completes the other half revolution the crank 56 will have moved back to its normal position, that shown in Fig. 3, and the swinging arm 71 will have moved back to its position causing the pawl 73 to move over the ratchet teeth contained in the ratchet wheel 69 without moving the rollers 46 and 47 at the same time the blades 60 and 61 will have descended and the knife 60 will have severed the sheet into strips and the blade 61 will have made a kerf or score into the upper surface of the strip at a predetermined distance back from its marginal edge for a purpose to be hereinafter described. The strip will. then fall from the knife upon the apron 75 from which it will pass to the conveyer 76. There will be suflicient slack of the sheet 1l contained in the tank 43 to permit its forward movement under the knife, at` all times. Whenthe sheet is thus moved forward, theroller 45 inthe 'tank 43 may be raised, but as the sheet continues to move, the machine causes more sheet to pass into the tank 43, and the roller 45 will gradually be lowered into the tank.

The kerng orscoring knife blade 61 has a blunt edge and passes only part of the way through the sheet, vsufficiently however to penetrate the slate,thereby providing a kerf or score 77 which extends across the stripes and provides a weakened line or bending edge whereby the marginal portion beyond the score may be folded under the main strip when laying the material on the roof,l as shown in Fig. 8. By cutting through the mastic deposit and the finely divided mineral material, the strip may thus be folded without cracking or breaking the fabric. v `When laying the shingle simulating material the strip-is placed upon the roof and the two finished surfaces are laid one upon the other and nails 79 are driven through the part divided bythe kerf or score and the upper marginal edge of the underlying strip and then the major portion of the finished strip 78 is turned back over that portion thereof that has been nailed to the roof support and another strip is thus nailed to its marginal edge, thus providing a joint and protecting the nails, by which the material is secured to the roof, against the e'ect of moisture and weather.

ln Fig. 7 the underlying edge of the strip is shown in dotted lines and the nails which penetrate through the two underlying marginal edges of the respective strips are also shown in dotted lines.

Having described my invention, what lf claim is:

l. rlhe method of making roofing material which consists in continuously deposit.

ing a mastic weatherproof material on a continuously moving absorbent sheet; then depositing thereon nely divided granular or flaky material; then applying pressure to said sheet to partially embed said material therein; then cutting the'sheet transversely into strips of predetermined lengths.

2. The method of making roofing matei rial which consists in continuously depositing a mastic weatherproof material on a continuously moving absorbent sheet; then depositing thereon nely divided granular or flaky material; applyingpressure to said sheet and material; scoring and simultaneously cutting the sheet transversely into strips of predetermined lengths.'

3.-,'llhe methodof making roofing material which consists in continuously depositing a mastic weatherproof material on a continuously moving absorbent sheet; then depositing thereon a plurality of relatively small streams of comminuted material; then v depositing on and across the entire upper surface of said sheet, flaky or granular material substantially una'ected in color by the underlying mastic material; then -applying pressure to said sheet and deposited material.

4. The method of making roofing material which consists in continuously depositing amastic weatherproof material on a continuously moving absorbent sheet; then depositing thereon a plurality of relatively small streams of comminuted material; then depositing on and across the entire surface of said sheet flaky or granular material substantially unaffected in color by the underlying mastic material; then applying pressure tosaid sheet and deposited material; then cutting said sheet into strips of predetermined lengths.

5. 'llhe method of making ornamental sheets of material for roofing or the like which consists in continuously moving the sheet; applying thereto while moving a water-proofing' adhesive material; then depositing thereon a. plurality of separated relatively small streams of comminuted material, leaving intervening spaces with the water-proofing adhesive exposed; then depositing on and lacross the surface of said sheet and streams a contrasting granular or flaky material substantially unadected in appearance by said adhesive, then Compressmg said strip to substantially uniform thickness.

6. A method of making roofing elements which consists in embedding 'longitudinal stripes of crushed mineral material in the adhesive coating of a sheet of roofing material, and then cutting said sheet transversely to form strips having said stripes crossv wise thereon.

7. A method of making roofing elements,`

which consists in applying an adhesive'to the face of an elongated fibrous sheet,emy bedding lines of crushed mineral material in said adhesive to form longitudinal stripes,

and then cutting said sheet transversely to form sections of the same width and length.

8. A method of making roofing elements, which consists in applyin an adhesive to the face of an elongated brous sheet, em-

bedding lines of crushed mineral material in 1 said adhesive to form longitudinal stripes,

embedding crushed mineral material of another color'in the uncoated portions of said adhesive to form intervening bands, and

cutting said sheet transversely into shingle strips.

10. A method of making roong'elements, which consists in applyin an adhesive to the face of an elongated brous sheet, embedding lines of crushed mineral material in said adhesive to form longitudinal stripes, embedding crushed mineral material ,of another color in the uneoated portions of said adhesive to form intervening bands, and cutting said sheets into sections each having said stripes and bands crosswise of its length. n, I y

l1. The method of making roofing elements, which consists of moving an elongated sheet of fibrous material lengthwise," applying thereto a coating of waterproof adhesive substance, passing said sheet under separated streams of crushed mineral material to cause said material to adhere in stripes to said adhesive substance, pressing said material into the said coating, and then cutting said sheet transversely into sections.

12. The method of making roofing elements, which consists of moving an elongated sheet of fibrous material lengthwise, applyingl thereto a coating of waterproof adhesive substance, passing saidl sheet under separated streams of'crushed mineralmaterial to cause said material to adhere in stripes to said adhesive substance, then passingsaid sheet through a shower of crushed mineral material of a different color to cause said material to adhere to said coating between said stripes, and removing the surplus crushed mineral material.

13. The method of making roofing elements,. which consists of moving an elongated sheet o fibrous material lengthwise applying thereto a coating of waterproot adhesive substance, passing said sheet under separated streams of crushed mineral mal terial to cause said` material to adhere in stripes to said adhesive substance, then passing said sheet through a shower of crushed mineral material of a different color to cause said material to adhere to said coating be# tween said stripes, and then severing said sheet erosswise into sections of substantially the same length and width.

14;. A method of making waterproof roofing, which consists of applying a waterproof adhesive to the face of a ibrous sheet,

` passing said sheet under separated streams of crushed mineral material to cause said material to adhere in lines to the face of said foundation, and embedding said material in the adhesive coating.

l15. A method of making roofing elements, which consists in passing a sheet of tibi-'ous material having an adhesive waterproof coating beneath separated streams of crushed mineral material to cause said material to adhere thereto in lines or stripes, and then passing said sheet under other streams of dierently colored grit, to cause said lastmentioned material to adhere to the adhesive coating in other lines or stripes.

16. A method of making roofing elements, which consists in passing a sheet of brous material having an adheslve waterproof eoating beneath separated streams of crushed mineral material to cause said material to adhere thereto in lines or stripes, then passing said sheet under other streams of differently colored grit, to cause said lastmen tioned material to adhere to the adhesive coating in other lines or stripes, removing the surplus grit, and embedding the remaining grit in the said adhesive coating.

17. The method -of making roofing elements which consists in embedding conventional patterns of crushed mineral material in the adhesive coating of a sheet of roofing .f material; then scoring the sheet transversely near one edge and simultaneously cutting the sheet parallel to the scoring, into strips.

In testimony whereof I hereunto set my hand in the presence of two subscribing witnesses.

WILLIAM F. MCKAY. Inthe presence oif-- FORE BAIN, MARY F. ALLEN.

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