Improvements in Plastic Compositions for Decorating Walls, Ceilings, and other Surfaces in Relief.
Year: 1898

page_text: Date of Application, 30th Apr., 1898
Complete Specification Left, 28th Jan., 1899-Accepted, 1st Apr., 1899
PROVISIONAL SPECIFICATION.
Improvements in Plastic Compositions for Decorating Walls, Ceilings,
and other Surfaces in Relief.
We, THOMAS HOLDEN, of 26A, Highfield Villas, Grenville Street, Artist, and
CHRISTOPHER BROOKE, of 33, Herbert Street, Edgeley, Moulder, both of Stock-
port, in the County of Chester, do hereby declare the nature of this invention to
be as follows:-
This invention relates to an improved plastic composition for decorating walls,
ceilings and other surfaces in relief which is specially applicable for use in con-
nection with a method of and means for producing raised ornamental designs and
letters for which Letters Patent No. 1082, Jan. 15th 1897, were granted to
the said Thomas Holden, but which composition may also be used for other
plastic work and greatly facilitates and renders the said work more durable.
To this end, in producing our improved plastic composition we use as a base,
whiting soaked in water.
When preparing our composition for use on walls, ceilings or other large or
somewhat porous surfaces, we add to the said base or whiting, boiled linseed oil
and glue dissolved in water, which ingredients we mix intimately and to which
we add, as the work proceeds plaster of Paris mixed with water.
The said ingredients are used in the following approximate proportions ;-
Whiting
Boiled linseed oil
Glue
-
28 pounds,
3 pints,
pound,
Plaster of Paris according to circumstances from ¼ to ½ of the whole of the
above ingredients.
When preparing our composition for use on wood-work, glass or other com-
paratively less porous surfaces, we add to the said base or whiting, shellac dis-
solved in methylated spirits and japanner's gold size. For some purposes we may
also mix with the said base, zinc white or white lead or both.
These ingredients are used in the following approximate proportions;-
Whiting
-
Zinc white or white lead
-
4 measures,
2 measures,
-
Shellac
Japanner's gold size
2 measures,
1 measure.
£ there compositions any desired colouring matter may be added to

page_text: requires more relief and heavier treatment it is important that any sharp edges
or any pattern given to the material as it is being ejected from tools should keep
their shape and not sink or slide, as is the case with most plastic substances used
in so soft a condition.
Another feature of the composition last described, is that although extremely
soft and fluent, it neither shrinks nor cracks in drying, and will adhere firmly
to wood, glass, metal, stone, cement, plaster, earthenware or any other material.
Where a painted or varnished surface is worked upon, the composition pene-
trates through the same and receives a firm and enduring hold.
This composition is also water-proof and is suitable for exterior as well as
interior decorations.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we declare that what
we claim, is:-
1st. A plastic composition for decorating walls, ceilings and other surfaces,
consisting
a) of whiting, boiled linseed oil, glue and plaster of Paris, or
b) of whiting, shellac, and japanner's gold size, or
c) of whiting, zinc white or white lead, shellac, and japanner's gold size,
used in the approximate proportions and compounded substantially as hereinbefore
set forth.
2nd. The compositions specified in the preceding claim, having colouring matter
added, substantially as and for the purpose set forth.
Dated this 27th day of January 1899
F. BOSSHARDT & Co.,
4, Corporation Street, Manchester, Agents to Applicants.