US 926773 A
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J. SCHIRRA. BUILDING MATERIAL. APPLICATION FILLED APR. 27, 1908.
926,773. Patented July 6, 1909.
UNITED sTA'rps PATENT OFFICE.
JULIUS SCHIRRA, OF PITTSBURG, PENNSYLVANIA, ASSIGNOR OF SEVEN-SIXTEENTHS TO PETER WEINKAUF AND ONE-SIXTEENTH TO CHARLES H. MASON, OF PITTSBURG, PENN SYLVANIA.
Patented. July 6, 1909.
Application filed April 27, 1908. Serial No. 429,521.
To. all whom it may concern:
Beit known that I, JULIUs Sonmna, a citizen of' the United States, residing at Pittsburg, inthe county of Allegheny and State of Pennsylvania, have invented certain new and usefull mprovements in Building Material, of which thefollowing-isa specification, reference being had therein to the accompanying drawing.
My invention refers to improvements in building construction and relates particularly to means for insertion between portions of a wall or upon the surface thereof for preventing passage or circulation of moisture.
The invention consists in layers of suitable material as hereinafter described, arranged for connection or interlocking engagement to make a continuous construction, and having qualities of flexibility, impenetrability of moisture and bondingefliciency for engagement with mortar, plaster, etc.
Ordinarily in laying the courses of brick on the foundation walls, masons employ layers of slate for the purpose of preventing the passage of moisture, but as is well known the slate is easily cracked, due to the hard opposing surfaces and pressure, thereby largely destroying its usefulness for the purpose intended.
In the drawings illustrating the invention Figure 1 is a view in elevation of a portion of a stone or brick wall provided with my invention. Fig. 2 is a vertical sectional view indicated by the line II. II. of Fig. 1. Fig. 3 is a detail view in erspective of one of'the sections of materia Fig. 4 is an enlarged sectional detail view illustrating the construction at the joined end. Fig. 5 is a perspective detail view showing a modified construction. Fig. 6 is a similar view illustrating the female edge of one of said sections. Fig. 7 is a sectional view enlarged indicated by the line VII. VII. of Fig. 5.
In carrying out my invention I provide sections or layers 2 composed of paper or similar material of sufficient thickness, flexibility, and toughness to give a good body of the necessary strength, both edges of which at opposite sides are corrugated as indicated at 3, while the intervening edges at right angles to said edges are pressed bysuitable dies so as to reduce the normabthickness of the aper to about one-half, as indicated at 4, 4, It will be observed that the depressions re- 55 sulting from such operation are located at opposite portions of the fiat surfaces whereby to interfit with the-next adjacent s'ection,,as f'ully indicated in Fig. 1 toprovide a flush continuation of both faces when said sections are incorporated'together in a wall, although the depressions may be on the same side and the layers laid alternately. The corrugated edges 3 are designed to project to within a short distanceof the faces of the wall at one or both sides and to provide a bonding attachment for -the mortar which is filled into the crevices, said corrugations being conveniently made by crimping the edges between suitable rolls or other device. When thus prepared the sections 2' are entirely covered on both sides and over-their entire outer portions with a suitable surfacing material for the purpose of providing an attaching or cementin covering for an outer coating of sand. have secured good results with a mixture of Keenes cement and paint of any suitable kind, which mixture will form a soft putty-like substance which will closely adhere to the paper and will have great retaining capacity as a cement. Such substance is indicated at 5 in Fig. 4. Over the dpaper as thus repared I then sprinkle san 0 white river sand, which becomes tightly incor orated with the coating 5 and when the sai coating dries the sand will be firmly incorporated with it and will provide a strong rough surface with which the mortar will become closely bonded when applied. In using the material as thus prepared, continuous layers are laid between courses of stone and brick as indicated in Figs. 1 and 2 or between the adjacent brick courses or stone courses, being laid in mortar, and when the superimposed layer of mortar and the next course of brick is laid thereon, the entire any suitab e kind, preferably sharpstructure will be pressed closely together 7 and my improved material will thus be rigidly incorporated as a permanent portion of the wall.
In the modified construction shown in and a and-groove joint. Such form is particularly adapted as a Wall cover and it may be conveniently and efficiently used by tacking u on any surface, Wooden or otherwise, for t e same general object, to Wit, for preventin the passa e of moisture and also for proa goo for the mortar or other Wall-surfacing material.
By reason of its character, the sections mav be readily pierced by nails or tacks and will be rigidly held in lace thereby on any surface permitting suc method of attachment.
A further use of the invention is with slate or other roofs, the sections being laid upon the boards of the roof in the same general manner asordinary paper is laid, providing a continuous intervening la er between the supportin structure and t e upper layer or layers of s ate, etc. 1
Various other uses may be made of the invention inthe building arts as may be sugested to the user, the advantages of flexibilit and resistance its 0 cf merits.
The invention is very useful and econombonding surface for retention to moisture constitutingseems ical, it may be made in various sizes" or proportions or changed in difierent details of construction or treatment by the skilled me- I chanic, but all such changes are to be considered as Within the scope of the following claims.
What I claim is:
1. Building material consisting of interfitting sections of flexible paper provided With a corrugated edge and transverse compressed ed es and having a covering of cementitious substances and an outer coating of sand or the like, substantially as set forth.
2. As an improved article of manufacture, a layer of flexible paper having .a covering consisting of a mixture of cement and paint and an outer coating of sand impregnated therein, and rovided with flattened edge portions of re uced thickness, and intervenng corrugated edges, substantially as set orth.
in presence of tWo Witnesses.
C. M. CLARKE, CHAs. S. LEPLEY.
In testimony whereof I affix my signature