US1789153A - Ornamental plaque and the like - Google Patents

Description

Jan. 13, 1931. F. E. OSBORNE- ORNAMENTAL PLAQUE AND THE LIKE Filed Dec. 4, 1928 Cementlliious fowldafiofls Jno aided in bas-reliefi .Rezhforcemerut.

Surface impregnated with poref 11217 7 \mazerllals Ground caa INVENTOR Patented Jan. 13', 1931' UNITED STATES PATENT OFFICE FREDERICK ERNEST OSBORNE, OF STRATFORD-ON-AVON, ENGLAND, ASSIGNOR TO PER- MANENT POSTERS (FREDERICK ERNEST OSBORNE, ARCHIBALD JOHN ORR, AN D ARTHUR EDWARD NEWSOM THOMAS, PARTNERS), OF LONDON, ENGLAND ORNAMENTAL PLAQUE AND THE LIKE Application filed December 4, 1928. Serial No.,323,785, and in Great Britain July 21, 1928.

This invention comprises improvements in or relating to ornamental plaques and the like and is concerned principally with (although not limited to) the production of artistic advertisements.

This invention provides a process for producing an ornamental plaque which consists in preparing a foundation of mouldable material, applying to said foundation a multicoloured surface, and coating said surface with a transparent or translucent waterproofing material.

' In a more specific form the process according to the invention consists in preparing a plaque of plaster or other porous cementitious material, impregnating a surface of the plaque with a pore-filling material,-applying to the filled surface a ground coating of'impervious material, applying pigments or colouring matterto the ground coating in order to produce the pattern required, and finally covering the patterned surface with cellulose or other waterproofing varnish..

In the accompanying drawing which illus trates one embodiment of my invention,

Figure 1 is a vertical crosssection through a plaque, and

Figure 2 is a plan view.

In one example according to the invention the plaque is manufactured in the following way. The foundation comprises what is known as fibrous plaster, which material is built up of successive layers of plaster, strips of jute canvas and wooden laths. The pictorial representation or other des1gn to be displayed is produced in bas-rehef and for'this purpose a mould is prepared into which is first filled a relatively thin layer of plaster of Paris. Strips of jute canvas or like material are'pressed on to the back of this plaster layer, then further plaster is added after which wooden laths are inserted. Further successivelayers of plaster, canvas and wooden laths may be inserted in the mould until the desired thickness of the plaque has been obtained. After the plaque has been removed from the mould, the surface in relief is impregnated with a porefilling material such as boiled linseed oil. The surface is then dried and a ground coating of impervious material, such as an I so as to produce the required pattern, and

finally the finished surface is protected by coating it with one or more layers of cellulose varnish, applied preferably by a spraymg process.

Instead of applying the colouring matter dlrectly to the ground coating, there may first be applied to this coating gold, silver or other metal in the form of a paint or alternatively as metal foil. The surface so treated is then painted to produce the required multi-coloured surface.

This invention includes an ornamental plaque (particularly intended for advertising purposes) comprising afifoundfltion of plaster or other mouldable material having on it apictorial representation or the like molded in has-relief, a multi-coloured surface applied to the foundation (e. g. by

' painting, spraying or otherwise) and a pro- The products produced by this invention possess considerable artistic merit, and by reason of the final coating of cellulose or like varnish the colouring matter is protected against deterioration fiuences.

I claim:

1. A method of producing an ornamental plaque which consists in preparing a foundation of moldable cementitious material with the desired pictorial representation molded in has-relief on one surface of the foundation, impregnating the molded surface with impervious material, and applying a multicolored coating to said surface cooperating with the has-relief to complete the pictorial representation. 7

2. A method of producing an ornamental plaque which consists in preparing a foundaunder atmospheric inwaterproofing ma.-

tion of moldable cementitious material with the desired -pictorial representation molded in bas-relief on one surface of the foundation, impregnating the molded surface with impervious material, applying metal foil to I the impregnating surface, applying a multicolored coating to at least portions of the 5 surface of the metal foil cooperating with the has-relief to complete the pictorial representation, and rendering the finished surface water-proof by the application to it of a protective varnish. 3. An ornamental plaque depiciting a pictorial representation comprising a foundation. of molded cemetitious material having the desired pictorial representation molded in has-relief on one surface of the foundation, the surface having the pictorial representation thereon being impregnated with impervious material, a multi-colored coating on said surface which cooperated with the-ba's-relief to complete the pictorial repre- 20 sentation, -and acoatmg of protective waterproof varnish on the multi-colored coating.

In testimony whereof I afiix my signature.

FREDERICK ERNEST osBoRNE.

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