USRE8546E - Improvement in roofing material - Google Patents

Description

UNITED STATES PATENT OFFICE.

TOBIAS NEW, OF NE? YORK, N. Y.

IMPROVEMENT IN ROOFING MATERIAL.

Specification forming part of Letters Patent No. 209,830, dated November 12, 1878; Rcissue No. 8,54 0. dated January 21. 1879 application filed Jannar'y .2, 1879s liable to crack and break under the influence of constantly-changing temperatures; also, to be sticky, sometimes so much so as to m ake it impossible to use it.

To overcome these difliculties I use a vegetable gum or rosin, which is dissolvedat a comparatively low temperature, whereby am enabled to mix witlrthc rosin any fibcr such as wool, hair, or any woody-fibers-to give body to the composition and add toughness and elasticity.

To'enable others skilled in the art to make and use my invention, I will proceed to describe the exact manner in which I have carried it out.

[prefer using the rosin or certain of the I products of the rosilrproducing pine.

jIt.is well known that after the distillation of [:the" turpentine the residuum is rosin; but between the turpentine proper and the rosin there is a medium product of a liquid or semiliquid consistency. This is the article I prefer to use, and with this may be mixed a small quantityof the oil of rosin or any other suitable oil to secure the best consistency for mixing the fiber prior to its application to the paper or other material which may be used in preparing the roofing. The rosin, however, may be more convenient for use, and this may be melted and the oil added to secure a product much resembling the product before referred to.

The rosin can be brought to a liquid stateat a temperature which will not inju e the fiber, which is to be introduced, as eforc stated, to give body, toughness, and elasticity to the composition.

-In mixingin the fiber the proportion. should be about from forty to seventy-five per cent.

of the fibrous material, according to the circumstances under which the roofing is to be used.

Then the composition is ready for application a strip of paper, preferably saturatedpaper, known commercially as roofing-felt, or other material, is coated with a layer of the composition over the whole surface of any dcsired thickness. Then another strip of the material, paper, or cloth is laid thereon, and another layer of the composition is added. On this is placed another layer of paper or fabric, and so on until the desired number of layers and thickness is obtained. The whole pile is then subjected to a heavy pressure, firmly uniting all the layers of .i'elt or other material and composition in one solid and homogeneous mass, and put up in rolls ready for the market.

Itis' evident iroiiitne toregoing descriptidn that a strip of paper or other material may be subjected to a saturating-bath in the composition, and then be pressed into roofing be tween. the two opposite layers, or the outside layers may be coated and then be pressed upon the middle layer without departing from the spirit of my invention. Two layers only may be used with an intermediate coating of the composition or rosin. This vegetable rosin can be handled with entire comfort, while the use of bitumen or bituminous material isidisagreeable to handle, from its odor, and soils everything it touches.

roofing made according to my invention has great toughness and elasticity without the addition of the fiber, but the latter is desirable, as it adds body to the article.

Having thus described my invention, I claim as new and desire to secure by Letters Patcnt- As a new article of manufacture, a ready- This roofing is then cooled-