US1369151A - Composite material - Google Patents

Description

F. WINTERBATH.

COMPOSITE MATERIAL.

APPLICATION FILED APR. 1, 1920.

1,369,151. Patente Feb. 22, 1921.

UNITED STATES PATENT OFFICE.

COMPOSITE MATERIAI..

Spetxiflcation of Letters Patent.

Pcttnted Feb. 22, 1921.

Application 'flled April 1, 1920. Serial No. 870,591.

- object to provide a simple and inexpensive material which will be impervious to air or moisture, and which can be advantageously emplo ed for numerous purposes where a materlal having the attributes of lightness,

durability, cheapness and attractlveness are essential requisites.

In one embodiment of the present invention, which I have found to be admirably adapted for the purpose of incrcasmg the acoustic properties and the ornamental appearance of the Walls of the sound amplifying bonis or chambers of meChanical sound reprodueing instruments, I provide a base or backing sheet of heavy burlap or other textile material, upon which a body layer of plastic material of cementitious nature is applied. A facing sheet of muslin is then arranged upon the plastic body, and the three layers of material are permanently secured to each other through the medium of a suitable adhesivc. A finishing coat of cnamel or celluloid paint is then applied to the facing sheet, preferably by spraying. This finished surface may be given a very high olish, so that it will be absolutely smootfi and unbroken. The surface coating of enamel or celluloid paint may be of any desired colo'r, so as to enhance the ornamental appcarance of the phonograph or other article.

My invention also contemplatesthe provi" sion of a composite material, as above characterized, which will not be dcleteriously affected by changes in temperature, and which, therefore, will not warp*or lose its original form or shape.

With the above and otherxob jectsii'lfiza subjoined claims, referenc being hadt"t j accompan ying drawing, wherein I have illustrated a practicalembodiment of the invention, and in which similar reference characters indicate corresponding parts throughout the scveral views.

In the drawings,

.F1gure 1 is a perspective view shbwing the three sheets or layers from which the final manufactured product is produced, sli l 1tly separated from each other.

1g. 2 15 a sectional view through the completed product. Erg. 3 is a perspective view of the product, md1cating the highly polished finished surface thereof, and,

Fig. 4; is a similar view showing the reverse1 or backsurface of the composite materia Referring in detail to the drawii1gs, 5 designates the backsheet or layer of material which serves as a foundation for the intermediate body layer 3, of plastic cementitious matenal. The back1ng shet 5 is preferably of heavy burlap or other similar fabric, and

upon one side of the burlap the plastic bod site consistency, and is evenly spread over the backing sheet of burlap. A glue or adhesive composition, indicated at 7, in Fig. 2 of the drawings, is then applied to the plastic body layer, and finally the face sheet 8, of muslin, is smoothly applied to the surface of the plastic body layer. composition causes the cementitious particles to be homogeneously united, and said b9(l layer hardened and rendered perfectly 1lg1 To the opposite side of the burlap backing sheet 5 a water-proof adhesive composition,indicated at.9, is also applied, said composition filling the interstices of the burlap, and uniting with the intermediate body lager 6.. In thls manner there is produced W at .is prtctically a continuous one-piece rigid structure.

In accordance with the particular purpose for which the composition material is to be used, the facing sheet of muslin ma b coated with various prparations.

coat of ena'mel or foimly distributed over such surface, pref erablyby sprayin the paint. This surface is finally rubbed own and highly polished.

The material thus finished may be advan tageously utilized in the construction of the The glue layer 6 is disposed. This body layer is pie erably of plaster composition of the requi-- 'hus .after applying a sizing coat to the musli1i face sheet, a finishih celluloid paint, as in icatecl at 10, is uniwalls 'ofrsoud' simplifyin I chambers or horns, such as are pr0v1de souxid reproducin instruments. It has been found that the lnghly fixiished' and glazed surface material enhances the volume of sound and the quality of the tone of the inf -strument, and in view of the fact that the composite material, is.absolutly 1mpervious to moisture, it will not crack, warp or Other shape or condition.

- color, thmartistic appearance of t e instru- 'ment Will be greatl -'i'ncreased, and the selected color may harmOnize with the color scheme of the other appomtmentsof the room 01' apartment 1n-wh1ch the instrument is placed, It is obvious that in the above particulars the improved composition material is superior to wood or metal he1etoforc utilized in the constructionof such instruments- I have above referred to one of the more important uses to which the improved composition material may be apphed,.but nu-* mer0uSother purposes for whichthe material might be sidvantageously employed will readily su'ggest themselves. Thus I have found that such material when used in the construction of the bodies and limbe of dolls is far superior to the use of vood or plastic xceedingly strong, rigid and durable, and

Will not break, crack or chip, should the doll be abused or roughly handled.

In addition to the afibove, my improved composition material may also -be utilized as a wall board in the construction of walls and partitions, it, of course, being understood that in such case the body layer of plaster composition Will be of the requisite thickness, and the burla backing sheet sufficiently heavy to a 0rd. the necessary strength and rigidity in the wall structure. F urthermore, the material can also be serviceably used as a veneer sheet for various mnufactured articles of wood, as it Will take and retain a very high polish on its exposed surface.

Again, the present invention may be uti lized by artists as a substitute for the customary canvas board with marked advantages owing to the fact that the composition material is non-absorbent and impervious in mechanical l urthermore, as the. material may 'be finished in an desired' to moisturef Its finished surface will, therefore,readily hold' the applied paint, and the poss1bilityrof crackin of the paint by the warping of the board 1s obviated.

From the foregoing description considered in coimection with the .accompaning drawing, the construction and seVeril advantages of my improved composition materil will be fully understood. wise .become deformed from its original I hve .herein given several examplesof prac tical 'applicat1oHs of the new material, ut 1t 1s, 0 course, apparent that this material may likewise be .adapted to numerous other uses, and in such applications it maybe nessary to slightly change the compo' sition of the several superposedlaminations. const1tut1ng the completed product. Ac-

cordinglyl reserve the'privilege of adopting all suchlegitimate modifications as may be fairly embodied. within the spirit and scope of the invention'as claLimed. v

I claim:

l. A laminated composite material consisting of a relatively heavy textilegbacking sheet, a body layerx0f plastic material apphed to one side of said backing sheet, a facing sheet of .relatively fine textile material covering said plastic layer, and an adhesive permanently unitin the several superposed layers of materi to each other.

2. A laminated composite material consisting of a relatively heavy textile backing sheet, abody layer of plastic material applied to one side of said backing sheet, a

' facing sheet of relatively fine textile material covering said plastic layer, an adhesive permanently uniting the several superposed laers of material to each other, and a composition finishing coat applied to said surface sheet, and capable of redeiving and retaining a highly polished surface.

3. A laminated composite inaterialconsisting of a relatively heavy textile backing sheet, a body layer of plastic material applied to one side of said backing sheet, a facing sheet of relatively fine textile material covering said plastic layer, an adhesive permanently 1initing the several superposed lay'ers of material to each other, a waterproof adhesive composition on said textile backing sheet, and a composition finishing coat applied to said surface sheet, and capable of receiving and retaining a highly polished surface.

In --testimony that"I claim the foregoing as my invention, I have sighed my name in presence of two subscribing witnesses.

l FRANK WINTERBATH. Witnesses:

VIOLA C; OLVAN, HENRY'W. CRONN.

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