An Improved Composition for the Production of Moulded Articles.
Year: 1894

page_text: Date of Application, 20th Dec., 1894
Complete Specification Left, 20th Sept., 13'5-Accepted, 16th Nov., 1835
PROVISIONAL SPECIFICATION.
An Improved Composition for the Production of Moulded Articles.
I, EMILE HÉRISSE, of Broad Street Avenue, London, E.C., Engineer, do hereby
declare the nature of this invention to be as follows :—
A composition according to this invention is suitable for making various moulded
articles from, such as moulds and trays for casting articles of confectionery,
ornamental mouldings, frames, imitation wood carving, and the like. The com-
position has a sawdust foundation, treated in the following manner :-The sawdust
is first saturated with boiled linseed oil by rubbing, the mixed up powder being
then exposed to the light to dry the oil, and when perfectly dry, is put in a hot
solution of permanganate of potash to unite the oil and wood fibre, and again dried
in the air: after which it is immersed in a weak solution of gelatine, glycerine,
chlorate of calcium, and chalk, to form the whole into a stiff paste, when it is
suitable for moulding from. The moulds I prefer to use are metal ones, and in a
hot state. After moulding, the paste and moulds are allowed to cool when the
moulded article is removed and immersed for a few minutes in a silicate solution ;
then removed and dried, and immersed in a solution of manganate of sodium, then
withdrawn and allowed to dry, and again immersed in a solution of alum for a few
minutes according to the thickness of the article; after which it is dried and ready
for usc.
1001
COMPLETE SPECIFICATION.
An Improved Composition for the Production of Moulded Articles.
I, EMILE HÉRISSE, of Broad Street Avenue, London, E.C., 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:—
A. composition according to this invention is suitable for making various moulded
articles from, such as moulds and trays for casting articles of confectionery
ornamental inouldings, frames, imitation wood carvings, and the like. The com-
position has a sawdust foundation: I find the treatment of the sawdust can be
considerably varied according to the article required, and the plans I have found
to give satisfactory results are the following: For general articles I treat the
sawdust as follows: I first work it up with boiled linseed oil, using only sufficient
oil to leave the sawdust loose; then expose it to the light to dry the oil, and when
perfectly dry, put it in a hot solution composed of permanganate of potash
one ounce and water one pint, to unite the oil with the wood fibre, and again dry it
in the air; after which, I mix it with a composition composed of:

page_text: and work the whole into a stiff paste, when articles can be moulded from it,
preferably in hot metal moulds. After moulding, the paste and moulds are
allowed to cool and the moulded article removed and immersed for a few minutes
in a silicate solution; then dried and immersed in a solution of manganate of
sodium, and after drying, immersed in a solution of alum for a few minutes
according to the thickness of the article: after which it is dried and ready
for use.
and work the whole into a stiff paste, when articles can be moulded from it,
preferably in hot metal moulds. After moulding, the paste and moulds are
allowed to cool and the moulded article removed and immersed for a few minutes
in a silicate solution; then dried and immersed in a solution of manganate of
sodium, and after drying, immersed in a solution of alum for a few minutes
according to the thickness of the article: after which it is dried and ready
for use.
For confectionery moulds, I first make a composition composed of :
Gelatine or glue
Glucose or treacle
Chloride of calcium
-
Glycerine (Price's No. 2)
-
-
20 lbs.
10
"
-
-
6
"
4 "
In some cases citric acid (in pint of water) 1 oz.
-
pre-
To 24 lbs. of the above composition, add 6 ozs. of hoiled linseed oil, 1 lb. of
cipitated chalk, and sufficient sawdust to work the whole into a stiff paste, which
can be pressed into shape in suitable moulds by hydraulic pressure.
Having now particularly described and ascertained the nature of this inven-
tion, and in what manner the same is to be performed, 1 declare that what I
claim is :
Compositions to mould articles from, prepared and used as herein before
described.