Improvements in Modelling Compositions or Compounds.
Year: 1898

page_text: Date of Application, 30th Mar., 1898-Accepted, 30th Mar., 1899
COMPLETE SPECIFICATION.
Improvements in Modelling Compositions or Compounds.
I, JOHN CARRINGTON SELLARS, of 68, Bridge Street, Birkenhead, in the County
of Chester, Manufacturing Chemist, do hereby declare the nature of this invention
and in what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement:—
This invention has reference to compositions or compounds suitable for use for
modelling by artists, children, and others; and it has mainly for its object to
provide such a compound or composition, which, while it is agreeable to handle
or manipulate, and cleanly, and easy to work, the particles of which it is composed
will adhere sufficiently and well together, and will retain their nature and
technical characteristics for a considerable time, if covered, and may be used over
and over again, as hereafter described.
According to this invention, a modelling composition comprises a clay such as
aluminous clays, china-clay, alumina, or the like, and paraffin or equivalent wax,
which are thoroughly compounded and intermixed; or, according to a modification
of the compound or composition, it comprises sand and paraffin or equivalent wax;
and to these, in either case, a small portion of gum and water is added; the object
and effect of the gum being to prevent the material becoming chalky and friable on
the outside if it becomes dry, while the water damps the whole, and brings it to
a workable, and the right state or condition.
In the process of manufacture, the clay or sand, as the case may be, should be
warm, say between 100 and 150 degrees Fahr., so that the paraffin or equivalent
wax will melt, and become intimately compounded and distributed throughout
the mass; that is to say, so that the mass will become homogeneous.
In the case of the wax and clay composition, a suitable proportion of wax to
dry clay is 1 to 6 by measure; whilst, in the case of the wax and sand com-
position, a suitable proportion of wax and sand, is 1 to 20 or 30, by measure.
The compositions made as above described are useful and effect the object
desired; and either the one, or the other can be employed, according to the require-
ments under different circumstances of use, and other conditions.
If the material should become dry, a little water added to the whole, will at
once make it workable, and will bring it back to its original workable condition.
The composition may, if desired, be coloured by the addition of a suitable pig-
ment, or pigments, or colouring matter.
Having now particularly described and ascertained the nature of this invention
and in what manner the same is to be performed, I declare that what I claim is:-
1. The herein described improved modelling composition, namely, a modelling
composition comprising clay and paraffin or equivalent wax; substantially as
set forth.
2. The herein described improved modelling composition, namely, a modelling

page_text: composition comprising sand and paraffin or equivalent wax; substantially as
set forth.
3. The modelling compositions comprising the materials or substances com-
pounded particularly as herein specified.
Dated this 29th day of March 1898.
CHEESBROUGH & ROYSTON,
Applicant's Patent Agents, 15, Water Street, Liverpool.