US1618192A - Roofing - Google Patents

Description

Feb' 22 1927 l G. P. HEPPEs ROOFING Filed May 17, 192s Patented Feb. 22,

y UNITED STATES lii'llisz'la'll oFFic-E.-

GEORGE r. Barras, or cmoaeo This Ainvention relates to 4roofing, more i particularly to that type'whi'ch is shipped in rolls and laid in slightly overlapping courses 'on the roof. With roofing of this character partially embedded in its face as it comes` from the asphalt or other compound coating mechanism vwhile it is still warm and tacky. This granular-surface is too rou h to form a good cement bond. with the un er surface of the overlying sheet and it is therefore desirable to omit this surfacing at the upper' 'margin of each sheet whereit underlies the sheet next above so that a better bonding surface is produced.

This invention relates to a method and machine for treating this margin by which the surfacin material will not adhere thereto during t e manufacture of the sheet, this being accomplished by chilling that portion of.

the sheet Which-it 1s desired to leave unsurfaced so that the asphalt is set suliciently to prevent adherence of the surfacing material at that portion only by the time it is applied thereto, the remainder of the sheet being in 'roper condition to take the surfacing.

or a more complete understanding of this invention reference may be had to the accompanying drawings in which- Figure 1 is a somewhat diagrammatic plan of a. portion of the roofing machine illustrating the invention.

Figure v2 is a central longitudinal section of the same machine.

Referring to these figures, at l is indicated a roll of rag lfelt which is saturated and coated lwith asphalt, a tank 2 being shown throughwhich the web passes and wherein the coating operation, and, if desired, the saturating operation also may be performed. The particular method and apparatus by which the material is saturated and coated is immaterial to this invention and it has therefore'been illustrated only conventionally. The coated sheet as it leaves the tank 2 is still Warm and tacky and in driving mechanism A3 sufiicientl -8 .may be positioned within the chamber 5 HEIGHTS, ILLINOIS, ASSIGNORjTO- THE FLINTKOTE COMPANY, OF BOSTON, MASSACHUSETTS, A CORPORATION 0F' MASSACHUSETTS.

QROQFING- appiiaon mea nay 17, 192s. semaine. ssaesa condition to receive the'surfacing material,

-a hopper for containing this material and from which it may be fed at roper rate to the sheet as it is fed there enea-th by feed rolls being indicated `at 3. 'Before the coated sheet reaches the hopper it is acted upon by a cooling device indicated at 4 by which a asphalt in strip fo m is. caused to congeal Y or set before the sheet reaches the surfacing 6o to, prevent the" granular material stic 'ng thereto. shown this 'cooling device 4 isv positioned centrally of a comparatively wide s'heetit being desi through this strip as shown byV the ldotted line 15 in Figure 1. -If .it is not desired to split the sheet the mechanism may be positioned to act on one margin of the sheet only.- The cooling mechanism, as shown, comprises an expansion chamber 5 having an open lower end 6 of a width corresponding to the Width of the strip desired to be left unsurfaced and of any length proper to 'cause the material to be treated a suiicient length of time tol insure sufficient con'- -gealing of the coating asphalt.l Compressed air may be supplied to the interior of this casing through a pipe 7 and as shown abaiile against which the blast of air from the pipe 7 may impinge in order to prevent the airv from striking thesurface of the sheet with` sufiicient force to displace the coating asphalt thereon. The chamber 5 is shown as of4 considerable volume in order that lthe compressed air from the pipe 7 may be expanded'and thereby ver considerably cooled, and the opening at t e lower end is of sufficient size so that the air issues therefrom at a comparatively slow rate insufficient to cause any displacement of the surface asphalt. .The asphalt along a strip is thus congealed as the sheet passes beneath this chamber, so that as the surfacing material is applied thereto it does .not adhere to this strip portion but adheres to the remainder of the sheet. The sheet may then be passed about a roll` 10 so that the non- 'adherent surfacing may drop of andl be 100 ortion' ofthey coating gnedv that thel sheet be l split 65 conveyed away asby means of a trough' 11, andthe sheet may then pass about a roller 12 e 7. io

cover this subject matter also'. The use of' air jets to displace the asphalt coatingwlnle `which engages the surfaced side of. the sheet and causes the adherentsurfacing to become. partially embedded in the coating. The

. sheet is thus surfaced except along the strip which it is desiredshould v'remain unsurfaced.

While this invention has .been described more particularly `with reference to roll roofing material, it should be recognized that the same method might be employed to vform ornamental designs in a strip or other form on roofing of ot er descriptions Where it is desired to apply surfacing to certain vportions only." Exce t fied, therefore the c aims'are intended to it is warmandplastic, howeverrdoes not comewithin the scopeof the prese-ntl inveni" `fined by the append Havingthus described an embodiment of' this invention it should be evident to those margin to partially harden and then applying rough surfacing material to vthe .face of the sheetvvhile allbut the margin is sufliciently soft for said surfacinv' material to i adhere thereto. and then finishing. the sheet.

2. The method of making rough surfaced roofing which comprises coating sheet mate# rial with a hot molten compound, cooling said compound along a strip lengthwise'of the sheet to cause,- it to partially harden, applying rough surfacing material to the face of the sheet While all but said strip is rial to adhere thereto, pressing the adherent` sufliciently soft for said surfacing ,matesurfacing partially into said coating, and then cutting the sheet through said strip to form a pair of sheets each having a margin free. from said surfacin material.

3. The method of ma ring rough surfaced roofing which comprises coating sheet material with hot molten material, blowing cold air thereagainst along a determined path to cool and partially set the coating Without deforming the same,.and then applying a rough surfacing 'material to the surface of said sheet While said coating material is sufficiently Warm and tacky for said surfacing material to adhere thereto except on said cooled path, and then completing the roofing.

4. The method of making rough surfaced rooting which comprises coating sheet mateas otherwise speci- 'rial ivith hot molten material, .blowing cold airthereagainst along a determined path to'- cool and partially set the coating, applying a l rough surfacing material to the surface of said vsheet While said coating material issuf ficiently .warm andtacky for said surfacing Amaterial to adhere thereto exceptjon said cooled ath, and then completing the roofing.

roofing which gin -to cool and partially set the asphalt valong a stri applyin surfacin vmaterial to the surfacg of-said slieet'while figlie asphalt is stilllsuflici'ently Warm and tacky except along said. strip for the surfacing to adhere, the asphalt along said lstrip heing'too cool to permit said surfacing to' adhereremoving' `the non-adherent surfacing and then finishving the sheet.

6. The method of makinfr roofing which comprises coating a web of sheet material with hot molten asphalt, directing cold air against'said coated material along the margin to cool and partially set the asphalt along' a strip without deformation of the coating, applying surfacing material to the surface of said sheet While the asphalt is still sufficiently Warm and tacky except along said .strip for the surfacing to adhere, the .asphalt along said strip being too cool to )emit said surfacing to adhere, and then .finishing the sheet..

7. A machine vof the class described comprising -means for'coating sheet material with-a heated molten compound, means to sheet' material feed the sheet, means to direct cold air to a portion-of the. surface of said sheet to cool and partially set the compound along a strip as it is fed, and means for applying a surfacing to the coated material While it is suliiciently warm and tacky to cause said surfacing to adhere except along said strip.

8. A machine of the class described comprising means for coating sheet material with a heated molten compound, means to feed the sheet progressively, means to direct a gentle draft of l cold air of insuflicient force to cause deformation of the coating to a portion of the surface of said sheet to cool and partially set the compound along a strip as it is fed, and means for applying a surfacing to the coated material While it is sufliover desire' areas to cool and set the' molten 5 material,` and means for applying a. surfac ing while the remaining'areas are suicientlyl warm and tacky for the surfx'wing to adhere s Ithereto, the cooled areas being set sucientlyfto prevent adherence ofthe surfacing thereto.

-In testimony whereofvv I have aixed I ny signature.

. GEORGE P. HEPPES.

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