US255088A - lewis sagendoeph - Google Patents

Description

UNITED STATES PATENT OFFICE.

L. LEWIs SAGENDORPH, OF OINOINNATI, OHIO, ASSIGNOB TO THE NEW YORK IRON ROOFING AND PAINT COMPANY, OF NEw YORK, N. Y.

PROCESS OF MANUFACTURING ROOFING MATERIAL.

SPECIFICATION forming part of Letters Patent No. 255,088, dated March 14,1882,

Application filed November 26, 1881.

To all whom it may concern:

Be it known that l, L. L WIS SAGENDORPH, a citizen of the United States, and a resident of Cincinnati, in the county of Hamilton and State of Ohio, have invented anew and useful Process of Manufacturing Roofing Materials, of which the following is a specification.

The object of my invention is to produce a material for covering the exteriors or roofs of buildings, the decks of Vessels, and otherlike structures which are exposed to the weather and which require to be made both fire and water proof.

In carrying out my invention I first prepare a liquid mixture having substantially the characteristics of a metallic paint, which may consist of any suitable metallic substance, preferably an oxide of iron, which is reduced to a finely-divided state andincorporated with a suitable vehicle-such as linseed or other oil. I place a sufficient quantity of this mixture in a, suitable vessel. I then take a piece of fibrous or textile material, preferably duck or canvas, of any required length, and cause the same to pass continuously through the said liquid mixture, by which operation the fibrous material becomes partially or wholly saturated with the mixture, a considerable quantity of which also adheres to its surfaces. After the fabric has been thus saturated and coated it is immediately made to pass slowly between steel or iron rollers in a manner well understood, and is thereby subjected to heavy pressure, by which operation the mixture is forced into all the meshes and interstices of the fabric, while the surplus adherent material is at the same time removed. After the completion of this operation the fabric is exposed to the atmosphere and allowed to dry and become hard. I then pass the fabric a second time through the same or a similar mixture and through the compressing-rollers in the same manner as before, wherebyitssurface receives an additional coating of the material, and any crevices or interstices which may have been imperfectly filled by the previous operation are closed, and the whole surfacerendered compact and homogeneous. Immediately after passing the second time be- (No specimens.)

tween the compressing-rollers, and while the surface of the fabric is in an adhesive condition, hydraulic cement of any suitable kind, in a dry pulverulent condition, is applied on one side only of the fabric.

The adhesive character of the mixture will cause the fabric to retain upon its surface a thick coating of the powdered cement, and the whole is then allowed to dry, after which it is ready for use.

It. may be sufficient for some purposes to pass the fabric between the com pressing-rollers but once, and immediately thereafter to apply the artificial stone or cement facing; but I consider it preferable to subject the material a second time to the process of saturation and coating with the mixture before applying the facing, as hereinbefore set forth.

The object in applying the powdered cement is for the purpose of preserving and protecting the metallic paint, and also to prevent the completed fabric from becoming adherent when put up in rolls for shipment.

When employed as a roofing material the cement protects the metallic substance from the injurious effects of moisture and the rays of the sun, inasmuch as when moisture comes for the first time in contact with the cement surface it immediately converts it into an artificial stone, which renders the roof abso lutely fire-proof. When used for covering the deck of a steamboat or other vessel the surface may be walked upon withoutinjury to the fabric which forms its basis.

I prefer to use for forming the artificial- .stone facing some one of the well known hydraulic cements-such, for example, asthat commercially known as Neufchatel stone or Portland cement.

Any machinery adapted for the purpose may be employed in carrying out the process hereinbefore described. Such machinery, however, forms no part of the invention hereinafter claimed, and hence need not be particularly described.

I claim as my invention- The hereinbefore-described process of manufacturing roofing material, which consists in saturating a fibrous 0r textile fabric with a liquid mixture composed of metallic substance I scribed my name this 22d day of November, and oils, substantially such as described, in I A. D. 1881. subjecting the saturated fabric to pressure while in a. plastic state, and in coating the sur- 5 face thereof with hydraulic cement in a dry pulverulent condition. a

In testimony whereof I have hereunto sub- L. LE WIS SAGENDOR PH.

Witnesses:

CHAS. S. HOLMES, H. E. WOODROW.