US1720708A - Building material - Google Patents

Description

July 16, 1929.

J. H. YOUNG BUILDING MATERIAL Filed April 6, 1922 fin/U e? i Patented July 16, 1929..

UNITED STATES PATENT OFFICE.

JAMES HOWARD YOUNG, OF PITTSBURGH, PENNSYLVANIA, ASSIGNOR TO H. H. ROB- ERTSON COMPANY, OF PITTSBURGH, PENNSYLVANIA, A CORPORATION OF PENN- SYLVAN IA.

BUILDING MATERIAL.

Application filed April 6, 1922. Serial No. 550,226.

This invention relates to building material and particularly shingles and has for its of a mixture of cement and fibrous material,

such as asbestos, mineral wool and the like, and said foundation member has affixed to it a relatively thin layer of metal, preferably one of the so-called non-corrodible' metals, such as zinc, lead or the like, which metal ina molten state is projected or sprayed in a finely divided condition onto the rigid foundation member, so that the metal particles are welded or molecularly united together to form the relatively thin-metal layer, upon which is deposited a relatively thin layer of copper. The copper layer may be deposited by electrolysis or by dipping the sprayed metal layer into solutions of the proper copper salts.

The copper layer is capable of bein colored by known chemical means to give esirable color effects, such as green, blue or brown, and thereby produce a shingle of high'artis- 3Q tic value.

These and other features of the invention will be pointed out in the claims at the end of this specification.

Fig. 1 is a plan view with parts broken away of a shingle'embodying this invention.

-F1g. 2 a cross section on an enlarged scale of the s ingle shown in Fig. 1, the section being taken on the line 2 2, and

Fig. 3 a cross section of a modified form 40 of shmg e.

Referring to the drawing, a represents the foundation member of the improved building material which is herein represented as a shingle.

The foundation member a is relatively rigid and composed of a mixture of cement 10 and asbestos or other fibrous material 12,-

which in itself possesses certain weather resisting value, which is materlally increased by providing the foundation memher with a relatively thin layer b of metal, preferably zinc, lead or the like so-called noncorrodible metals.

The layer 6 is aflixed to the foundation fire and 1 member by spraying or projecting molten zinc, lead or like metal by means of fluid pressure, upon the foundation member a so as to completelycover the same as represented in Fig. 2, or to partially cover the same as represented in Fig. 3. The layer 1) thus applied comprises individual metal particles fused or welded together to form a continuous coating while retaining the irregular contour of the individual particles as illustrated in Figs. 1, 2 and 3 of the drawing.

The finely divided particles of the molten metal projected upon the foundation member are welded together or molecularly united to form the relatively thin metal layer 6, upon which a layer a of copper is deposited.

The copper layer 0 may be deposited by the well known electroplating methods or by dipping the metal layer 1) into solutions of the proper copper salts, such for instance as The deposited copper layer 0 firmlyv adheres to the sprayed metal layer 6, and adds materially to the fire and weather-resisting value of the foundation member a and the metal la er b, and in addition imparts to the shingle liigh artistic values, inasmuch as the copper layer 0 can be colored by known chemical means, to give desirable color effects, such as green, blue or brown.

The metal layer 6 may be formed byair or other fluid pressure after the manner represented in U. S. Patent No. 495,107 dated April 11, 1893.

The shingle herein represented is of substantial thickness and when erected upon the building has the appearance of a solid copper shingle. r

The cement shin les which are in use are non-hygroscopic. Otherwise they would not have a value of being unaffected by climatic or weather conditions, nor would they have a Value of being heat resistant and fireproofthe cement shingle, either or both coatings.

will conform to the irregularities. The purphse of my invention is to improve upon this type of shingle as hereinbefore pointed out.

ticles fused together to form a continuous coating While retaining the irregular contour of the individual particles, and a relatively thin layer of copper bonded to said first-mentioned metal layer.

2. An improved building material having a foundation member of cement and asbestos fibre, a relatively thin non-corrodible metal.

layer affixed to said foundation member and comprising individual metal particles fused together to form a continuous coating while retaining the irregular contour of the individual particles, and a relatively thin layer of copper bonded to said first-mentioned metal layer.

3. An improved building material havin a relatively thick rigid foundation member 0 non-metallic material, a relatively thin metal layer aflixed to said foundation member and comprising individual metal particles fused together to form a continuous coating while retaining the irregular contour of the indi-, vidual particles, and a relatively thin layer of copper bonded to said first-mentioned metal layer.

4. An improved shingle having a foundation member of cement and asbestos, and a relatively thin non-corrodible metal layer affixed to said foundation member and comprising individual metal particles fused together to form a continuous coating While retaining the irregular contour of the individual particles, and a relatively thin layer of copper bonded to said first-mentioned metal layer.

5.4 An improved shingle having a foundation member of cement and asbestos, and a relatively thin non-corrodible metal layer affixed to said foundation member and comprising individual metal particles fused together to form a continuous coating while retaining the irregular contour of the individual particles.

In testimony whereof, I have signed my name to this specification.

JAMES HOWARD YOUNG.

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