US1485370A - Plaster-receiving board - Google Patents

Description

March 4 1924. 1 H. A. CUMFER PLASTER RECEIVING BOARD Filed Jan. y23. 1922 4 AV" @XX Patented Mar. 4, 1924.

UNITED STATES PATENT OFFICE.

BARRY A. CUMFER, F CHICAGO, ILLINOIS, ASSIGNOR 'OF ONE-HALF TO ALBERT .D. STEWART, 0F HUTCHINSDN, KANSAS.

PLAS'IERfRECEIVING BOARD.

Application led January 23, 1922. Serial No. 531,086.

To all whom t mag/concern:

Be it known that I, HARRY A. CUMFER, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Plaster-Receiving Boards, of which the following is a specification'.

This invention relates to plaster-receiving boards.

One of the objects of this invention is to provide a plaster-receiving board which will produce an yimperforate wall thru which moisture cannot penetrate and thru which the plaster, to 'be applied thereto, does not extend. l

Another object is to provide a plasterreceiving board having a series of segregated enclosed pockets, bound by a backing wall of waterproof material and thereby made impervious to moisture.

Another object is, generally, to improve structures of this character.

Other objects and advantages of the invention will become readily apparent, to persons skilled in the art, from a considera'- tion of the following description when taken in conjunction with the drawings, wherein Fig. 1 is aplan view of the plastered surface showing parts broken away.

Fig. 2 is an enlarged section taken on line 2--2 of Fig. 1.

In both views the same reference characters are employed to indicate similar parts.

The structure is made of three substantially parallel sheets properly secured together.

The back sheet is moisture and water re.- sistant and imperforate. The intermediate sheet has a series of regularly spaced-apart perforationsand the front sheet has a similar number of registering perforations of smaller diameter, or area.

The plaster passes thru the smaller perforations or holes in the front sheet and lls the holes or pockets in the second sheet thereby forming buttons which, when the plaster becomes hardened, cannot pass out thru the smaller holes in the front sheet and thus the plaster is keyed and held to the board.

The rear 'board 5 is preferably waterproofand moisture resistant in nature. It may be a sheet of asphaltic roofing material, properly saturated with asphalt, or .the like. The inner or intermediate sheet 6 may be of any sort of material to provide means to space apart the rear and frontl sheets. The intermediate sheet is provided with a series .of perforations or holes 7 which may be round, or other suitable configuration, and intermediate the holes 7 are a series of parts S-which support the' superimposed sheet 9. The latter sheet is provided with a series of registering perforations 10 which are smaller in area than the perforations 7 in the sheet 6. Preferably the marginal edges ofthe perforations 10 are turned outwardly, as at 11, to afford a larger pocket 12 between the sheets 9 and 13. The sheet 9 may -be made of suitable material, such as felt or other fiber saturated and coated with asphalt or the like, preferably hardened, so as to become physically resistant in order to more securely hold the plaster. The rear sheet 13 is preferably roofing material having a fibrous or pervious foundation sheet, such as felt or .the like, suitably saturated with asphalt or other moisture resistant material, so as to entirely and completely revent moisture or wind from passing t ru the wall. The three sheets, 6, 9 and 13, are suitably secured together, preferably by the adhesive qualities of the material of which they may, preferably, be coated, such be secured rby other means of a more mechanic-al nature, such as riveting or by other suitable fastening devices.

In the application of the plaster-receiving board to a Wall or floor structure 14, nails 15 are driven thru the parts 8, intermediate the pockets 12. When the sheet has been properly secured, in the manner described,l

to a suitable support then the plaster 16 is applied to the sheet, whereupon it will enter the pockets 12, as shown, and thus secure the plaster, wheh sufficiently hardened to the Wall or floor by 'a series of integral buttons uniformly spaced apart and projecting from the inner side of the plaster lof the wall.

The nails 15 pass thru all of the sheets, thereby reenforcing the cement when the -as asphalt, or the, like, although they may board is applied to the wall in holding the Y sheets together.

The plaster-receiving board is especially ada table for use Yfor application to walls of uildings `which are to subsequently receive a coat of stucco, because the stuccosupporting means Yis not subjected to dry rot as wood laths, nor to rust, as metallic lathing. It is storm-proof and prevents the. entrance of moisture or strong wind into the building. e -Having described my invention what I claim as new and desire to secure by Let-ters Patent; is Y 1. AffplasterV receiving 'board comprising two spaced parallel flat sheets and an inter- 16 mediatefiat sheet, the latter sheet perforated at uniformi intervals and having all of its remainingsurfacesY glued to the respective outside sheets, one/of the outside sheets having registering perforations of smaller 20 diameter.V

12. A plaster-receiving board compising three parallel substantially flat sheets cemented together, the intermediate sheet and one of the outer sheets having registering 26 perforations, the perforations of the intermediate sheet, each, being larger in area than those in the outer sheet and the outer sheets separated a distance equal te the thickness'of the inner sheet.

3. A plaster-receivin boardgcomprising three parallel substantmlly flat sheets sesured together in Ewhich one sheet is imperforate and moisture resistant, the other two sheets having registering perforations in which the perforations in the outer sheet are smaller than those of tile inner sheet and in xvhich the inner sheet serves as a means for spacing the two outer sheets apart a distance equal to its thickness.

4. A plaster-receiving board comprising 40 an imperforate moisture resisting sheet for direct contact with a support; a superimposed Vsubstantially flat sheet having plasterreceiving openings and another substantially fiat sheet to receive the plaster and having'registering openings of smaller area in which the marginal'edges Hare outwardly and means to secure the sheets together the inner sheet separating the outer sheets a distance equal to its thickness.

In testimony whereof I hereunto subscribed xiy name.

,HARRY A. CUMFER

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