US 1173678 A
Description (OCR text may contain errors)
PIIIIIIIIQI Feb l. H. MUNRO.
APPLICATION FILED Nov.I2. I9Io.
JAMES H. MUNRO, OF NEWARK, NEW JERSEY.
Specification of L'etters Patent.
Patented Feb. 29, 1916.
Application filed November 12, 1910. Serial No. 592,090.
To all whom it may concern:
Be it known that I, JAMES H. MUNRO, of Newark, New Jersey, have invented certaln Improvements in Coverings, of which the following description, in connection with the accompanying drawings, is a specification, like letters on the drawings designating like parts.
This invention relates to coverings for surfaces such as floors, walls, ceilings, roofs and pavements, and is of particular utility when applied to ioors or pavements requiring an effective and permanent covering of inexpensive original cost. and upkeep, although I contemplate the use of my invention in any field for which it is adapted by its nature.
An important object of my invention is to provide tessellze with recesses, to be embedded in suitable material such as pitch, the latter oozing-up into the recesses instead of exuding between the tessellae, this opening up to a new use the well-understood pitchy cements which are in such general use with other forms of covering, of a less permanent character.
Heretofore, on account of the tendency of pitch to become soft at relatively low temperatures, and to ooze up through the joints of the covering units, pitch has not been available for floors, pavements and similar situations where the dark color of the pitch would mar the appearance of the surface and cause obiects to adhere thereto.
Among other important objects of my invention is the formation of these tessellae of cement in sheets on flexible material. such as burlap, whichjoin the tessellae and permit them to be laid in unit sheets of several feet in length.
Still other important objects of my invention comprise the provision of means to hold the covering of recessed tessell in place upon inclined surfaces; and also means to permit the units to be rolled up for transportation and storage, as well as to adapt them to curved or warped surfaces.
The various features of my invention will be illustratori and described fullv in the accompanying drawings and specification and 'pointed out in the claims.
In the drawlngs, Figure l is a plan view of portion of a covering in the construction of which my invention has been embodied; Fig. 2 is a view of a portion of a similar covering in vertical section, on an enlarged scale, taken on the line @v2-wz, Fig. 1, and showing the covering in place. Fig. 3 is a view in vertical section showing a portion of my covering in place upon a roof, and illustrating the preferred mode of support in such installations; Fig. 4 is a view in end elevation of a unit of covering rolled up for storage or transportation.
In the embodiment of my invention selected for illustration and description to permit ready and complete understanding of my improvements, the parts designated by the reference numerals 1, 2, 3 and 4 are tessell of cement, formed in place upon a vehicle 5 of suitable fabric, such as burlap, the tessellae having in accordance with an important feature of my invention, recesses 6, to receivethe cementitious substance 7, in which the tessellae' are embedded, and which may be of any suitable material, preferably pitch, as that is cheap and its qualities are well understood by those skilled in the art of laying such coverings.
`When the tessellae are pressed into the bedding, the pitch 7 finds access tothe recesses 6 which may be of the same general contour as that of the individual tessellacor may be of any suitable contour.
The recesses 6 will preferably be of suitable area and depth, and so located as toinsure their reception of enough cement to avoid any undue tendency of the latter to exude to the surface of the covering at the joints between the tessellae.
The thickness, composition and proportions of the tessellae may vary with the requirements of individual installations and as one convenient arrangement I have shown the tessellae l, 2 and 3 as formed by compressing the cement on both sides of the layer of burlap 5, the meshes of that material being usually sufficiently coarse to permit an integral union of the upper and lower parts of the tessellae, which may if desired be formed as indicated of somewhat finer material in the part exposed, and below the burlap of a material of coarse character which will unite readily with the bed 7 of such -material as pitch, the latter being laid on any suitable support 8.
As one variation from the above forni of.
tessellae, they may be formed substantially as shown at l in Fig. 2, somewhat dished tachment for the covering 91 which is of particular utility when laid upon a slanting surface-such as'the roof shown at 98, and
to hold the covering from sliding down, I
prefer to provide a suitable form of foundation 97 which' may be secured to the roof, as by nails 99. and furnished with projections such as the integral knobs or stri s 100, or separately formed disks 101 may be utilized, being transfixed by the nails 99, these projections, whatever their character, being constructed and arranged to enter the recesses 6, the tessellee being of any suitable construction, herein shown as si-milar in essential respects to the tessell shown and described with reference to Fig. 1.
By forming the cement tessellae 1, 2, 3,
etc., upo-n a flexible connecting material 5 such as burlap I am enabled to roll up the sheets or strips of tessellae as indicated in Fig. 4,for storage and transportation, thus affording a very convenient form of package.
Having illustrated and described my invention thus fully, and suitable means for carrying the same into efect, I wish it to be understood that I do not limit myself to the specific materials or construction shown and described by way of example, nor in general do I limit myself otherwise than as set forth in the claims, read in connection with this specification.
That I claim as new, and desire to securey by Letters Patent of the United States of America, is
1. A cement covering for floors, Walls,
land similar surfaces; said metho ing the steps of molding a sheet of refrac? hicle, and laid in a plastic bedding, said.
covering being molded supercially to Jform a wear-resisting surface presenting the effect of a multiplicity of tessellae, and said tessellae having their lower margins beneath said vehicle beveled away from their proximate edges to form cro-ss channels to receive the bedding'v material and distribute it to said edge Junctures, the lines of fracture, both lateral and transverse, being'predev termined by said molding.
2. The novel method of forming a cement covering for floors, Walls, roofs, avements compristory cement superficially upon a flexible vehicle to form a Wear resisting surface presenting the effect of a multiplicity of tessell, with the lower `margins beneath said vehicle beveled away from their proximate edges to form cross channels; curin said sheet; and laying said sheet in a plastic bedding; said cross channelsserving to receive the bedding material and distribute it to the edge junctures of said tessellee, the lines of fracture of said sheet both radial and transverse being predetermined by said molding.
Signed at Newark in the count of Essex and State of New Jersey this 2 nd day of October, 1910.
JAMES H. IMIUNRO.
HERMAN M. BUEHLER, MAURICE FADEN.