Year: 1887

page_text: Date of Application, 20th Sept., 1887
Complete Left, 9th June, 1888
Complete Accepted, 13th July, 1888
I, MARK WOLFF SAMUEL at present of No. 38 Trebovir Road, South Kensington
in the County of Middlesex, Electrician, do hereby declare the nature of this
invention to be as follows:-
My invention relates to the manufacture of a compound which when heated is
plastic and can be moulded into tiles, slabs and other articles such as boxes or
frames, which sets hard and firm, and which can be coloured or otherwise decorated. :
For this purpose I mix about 5 parts by volume of sulphur, about 4 parts of ...
steatite, for which in some cases may be substituted lime, gypsum, cement chalk or
other earths, and 1 part of fine sawdust, for which may be substituted powder of
paper pulp or of cotton or other vegetable fibre, of asbestos or slag. I heat the
mixture until it becomes soft and plastic in which condition the ingredients should be
thoroughly mixed, and amalgamated; and I then press the plastic compound into
moulds of shape suitable to the articles to be produced. The compound may be
coloured by admixture of colouring matters. When only the surface has to be printed
or coloured with a design, I lay in the mould a negative print of the design on paper
or other material and after the inoulded article has set, I remove the paper or material
that was printed, leaving the colours for most part absorbed by the compound and
appearing on its surface.
1

page_text: COMPLETE SPECIFICATION.
Manufacture of a Plastic Compound and Treatment thereof for the
Production of Moulded and Decorated Tiles, Slabs, and other
Articles.
I, MARK WOLFF SAMUEL at present of No. 38 Trebovir Road, South Kensington
in the County of Middlesex, Electrician do hereby declare the nature of this inven-
tion and in what manner the same is to be performed to be particularly described
and ascertained in and by the following statement:
My invention relates to the manufacture of a compound which when heated is
plastic and can be moulded into tiles, slabs and other articles such as boxes or frames,
which sets hard and firm, and which can be coloured or otherwise decorated.
For this purpose
mix about 5 parts by volume of sulphur, about 4 parts of
steatite, for which in some cases may be substituted lime, gypsum, cement chalk or
other earths, and 1 part of fine sawdust for which may be substituted powder of paper
pulp or of cotton or other vegetable fibre, of asbestos or slag; I heat the mixture
until it becomes soft and plastic, in which condition the ingredients should be
thoroughly mixed, and amalgamated; and I then press the plastic compound into
moulds of shape suitable to the articles to be produced. The compound may be
coloured by admixture of colouring matters. When only the surface has to be.
printed or coloured with a design, I lay in the mould a negative print of the design
on paper or other material and after the moulded article has set, remove the paper
or material that was printed, leaving the colours for most part absorbed by the
compound and appearing on its surface.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner tho same is to be performed I declare that what
I claim is -
1. The herein described manufacture of a plastic compound for production of
moulded articles.
2. The herein described method of producing a design on the surface of an article
moulded of the compound above referred to.
Dated this 9th dow of Tune 1000
ABEL & IMRAY,
Agents for the Applicant.