US1552421A - Art of making roofing material - Google Patents

Description

Sept. 8, 1.925.

Filed D'ec. e, 1920 Y' @Y Mae,

H A CUMFER A RT 0F MAKING ROOFING MATERIAL ,Patented Sept.v s, 1925.

Hanny A. comme', or cmcneo, ILLINOIS,

assIGNon- To GUY'roN a cunrnn iure.

C0.,40F CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

ABT QF MAKING' ROOFING MATERIAL.

Application illed December 6, 1920. Serial No. 428,562.

To all whom t may concern:

Be it known that I, Hannr Qumran, a citizen of the United States, xesldlng at Chicago,` in the county of Cook and State of Illinois, have invented certain new and useful Improvements in the Art of Making Roofing Material, of which the followlng 1s a specification.v

This invention relates to improvements 1n the art of making roofing material'.

One of the objects oftheinvention 1s to provide a new and improved mode of procedure for making asphaltic roofing material during continuous uninterrupted movement of the strip, forming the base for the roofing product.

Owing to the nature of the material entering into thecomposition of roofing of this character, it is very desirable that the successive steps in the` treatment of the strip, forming the basey for the product, .should be effectuated continuously and in consecutive' order that each step shall be completed before the beginning of another; for example:

the strip should first be dried to drive out native moisture to render it more absorbent. It should then be saturated with a hot, relatively liquid asphaltic, waterproofing material, then it should be cooled, so as to be in a proper condition to receive a coating of relatively heavy weather resisting plastic compound, after which nely divided mineral material is embedded in the plastic, on both sides of the strip, and then it is subjected for a relative y rolonged time to the cooling, and other e ects of the atmosphere, and then conformed into shipping packages, all of these steps being performed while the strip is moving.

It has heretofore been customary to perform some of these ysteps on a continuously moving strip, but in the earlier practice, where the strips required prolonged periods of heating or coollng, between the successive steps, it was allowed to rest, by taking it from or stopping the machines and after the necessary heating and cooling periods continuing the mode of construction until the product was completed.

It is also desirable that the strip should pass through all of the stages of develop-- ment in continuous uninterrupted movement to economize space and expense in handling, as well as to facilitate and hasten thel manufacture.

In the present invention thestrip is un-A ment while joining the successively used rolls to the moving strip.

In the accompanying drawings forming a part hereof I have shown a schematic arrangement of devices by which my new and improved mode of procedure may conveniently be carried into effect.

1 is a roll of roofing material which is to form the continuously moving strip, made of felt, paper or like suitable substance, supported upon a rack 2. 3` is a similar roll supported upon the rack and having its beginning end 4 ready to be joined upon the ending end of the roll 1.

I then pass the strip 5, from the active roll, to a frame 6 and arrange it in consecutive, constantly travelling loops 7. The object of this is to provide an excessive length of the strip between the active roll 1 and the point where the `next succeeding step is performed so as to compensate for the time required to splice the ends of the rolls 1 and 3, together.

In the further progress of the strip it is heated and thoroughly dried. This may be done when it` is passed over rollers 8 and 9 contained in a successive series of machines 10, 11 and 12. The rollers 8 and 9 are heated so that both sides of the strip-- are brought into actu-al con-tact withgthe heated surfaces. As many of the machines, 10, 11 and 12, may be employed as desirable so that substantially all of the native dampness inher-v ent in the travelling strip will be driven out or expressed therefrom and the strip will be preheated for subsequent saturation.

13 is a tank containing relatively liquidn weatherproofing, asphaltic material, throughwhich the strip passes in loops 14, by which means an extended length of the strip is subjected to the penetrating ei'ec't of the asphaltie.A liquid, thru which it is passed, so that when it emerges from the tank it is substantially a-nd completely saturated and extremely hot. From the tank it is passed onto a frame 15 and there arranged ina series of constantly travelling loops 16, with the object of presenting as large a surface as may be, in as condensed cool sur-faces.

space as possible, to the cooling effect of the air. After the strip passes from the loops 16, it is coated with a relatively heavy or stiff plastic, asphaltic compound which may be done with a coater 27 and, while its temperature is above that of the atmosphere, it is coated on both sides with a finely divided mineral substance, such as granular or flaky slate, or other similar material and mica, or the like, on the other side as by the use of a machine 28. It is then compressed by the rolling compressor 29 so as to partly submerge the granular covering into the asphaltic, plastic material.l yIt is then passed over cooling surfaces such as the rolls 17and 18 of the machines 19 and 2O of which any suitable number may be used. By this means both sides of the strip are broughtinto actual contact with relatively After leaving these surfaces the strip is then directed to a frame 21 and arranged in continuously travelling loops 22, which loops are bodily moved along and are progressively formed and taken off the frame. When the strip is on the frame and looped up in the manner described, a. large continuing surface is thus exposed to the influence of the atmospherel to cool it and to otherwise temper it. When the striplleaves the frame 21. it is wound upon a roll 23 ready forshipment or it may be directed while moving into a shingle machine 24 to be cut into shingles and subsequently the shingles are transferred, while still in motion, into a shingle packing machine 25 by which they are placed in cartons 26, ready for shipment.

4By pursuing the course of manufacture herein outlined, the entire operation of making and preparing the product for shipment is automatically performed while it is in continuous motion..

The shingles, or shingle strips transversely cut from the prolonged strip, are passed from the shingle'machine directly into the packing machine continuously and as fast as they are `produced.

1t will be noticed, from the above, that the entire operation may be made to occur consecutively, automatically and in sequenoe.

While I have herein shown a convenient mechanism for carrying my invention into effect, it will be manifest to persons skilled in the' art, that the practice of the inventive concept does not depend upon the mechanism employed or the character of machinery used, the gist of the invention residing in the continuous movement of the strip while the successive operations in the course of its manufacture into roofing material are automatically performed without stopping the rogressive movement of the strip.

aving described my invention what I claim as ynew and desire to secure by Letters Patent is A progressive method of making prepared roofing and the like from a stripl of ,fabric or the like in which the strip is continuously and successively subjectedy to the following operations, preheating to drive out moisture, saturating with a liquid water proofing material, cooling to partially set the water proofing material, coating both sides with a relatively heavy plastic material, coating both sides with finely divided mineral material, and cooling.

1n testimony whereof I hereunto subscribe my name. t HARRY A. CUMFER.

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