US139781A - Improvement in stucco ornaments - Google Patents

Description

UNITED STATES A. DSIR GODARD, OF CHICAGO, ILLINOIS.

lMPROVEI/VIENT IN STUCCO ORNAMENTS. i

{Specification forming part of Letters Patent No. 139,781, dated June 10, 1873 application filed IApril 2, 1873.

To all whom t may concern:

Be it known that I, A. DESIRE GODARD, of

` Chicago, in the county of Cook andState of Illinois, have invented a new anduseful Improvement in Fire-Proof Stucco Ornaments,

fof which the following is a speciication:

The'object of my invention is to produce nre-proof stucco ornaments foi` use as centery pieces, angle-pieces, for ceilings, cornices, and brackets, flower-drops, scrolls, leaves, and a ness.

ylo this end my improvement consists in` `making such ornaments of thin layers of a compound composed principally of plaster'of Paris and glue, and interposing between the y layers of the plaster a webbing of burlap, or

jute, ora similar textile fabric having open meshesl readily penetrated by the plasticmaterial.

Io the compound of plaster of Paris and glue may be added phosphate of soda and ,borax, to increase its hardness and reproof quality, also alum to prevent the warping of the ornament while setting; also more or less rock-salt, according asy it may be desirable to cause the setting of the compound more or less rapidly.

The mortar may be prepared by dissolving onepart of glue in one hundred parts of water, moderately Warm, to `which should be added plaster of Paris sufcient to make aliquid paste of )the consistency of oil-paint when i ready'for use; however, I Apreferably add to these ingredients one part of phosphate oi soda, one part of borax, one part of alum, and The proportion oi rock-salt should be less when a slower setting ot' the mortar is required; maguesia or even mother-Water may be substituted for rocksalt, Whenever the former may be procured t0 advantage. y {In `making ornaments I first cover the mold or matrix, by means of a stiff brush,

Witnesses:

with a thin layer of theabove-mentioned mortar, then place upon such layer a webbing of burlap, jute, or the like fabric, and then again spread a layer of the mortar upon the burlap until it is entirely embedded. The artist by using the brush can Vreach into all cavities and beneath all undercuts, and thus reproduce Without diiculty the true form of the mold.a The textile webbing used should be of the re-proof kind, such as is employed in theaters for screens for the foot-lights.

Ornaments thus made will be exceedingly light and strong, and, being made tough by the introduction of a` textile webbing, are

proof against breaking or cracking, unlike those made of plaster ot' Paris alone.

The smaller ornaments, such as cornices of ordinary size, require no other `fastenin g than that aiorded by rows of nails driven through them alon g their edges into their supports. Ad-

ditional fastening andfsupportin g devices may, however, be used with these as well as with those ot' larger size.

In the accompanying drawing, which illus-` trates a cornice in section, Arepresents the compound of plaster of Paris and glue, 85e.,

and B the textile webbin`g,'ot' which two thicknesses are shown as employed.

What I claim, as my invention and desire to secure by Letters Patent, is

1. Fire-proof stucco ornaments, composed of a compound of plaster of Paris and glue in layers, and an interposed textile webbing, substantially as speciiied.

2. Fire-proof stucco ornaments, composed of a textile webbing embedded in layers of a compound prepared by mixing in Water plaster of Paris, glue, phosphate of soda, boraxy` alum, 'and rock-salt, substantially and as A for the purpose speciiied.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

A. DULUD, A. BOUCHET.

A. D. confini). y

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