Improvements in the Manufacture of Moulds for Producing Figures or Articles of Chocolate, and the like.
Year: 1896

page_text: Date of Application, 18th Nov., 1898-Accepted, 23rd Jan., 1897
COMPLETE DIECIFICATION.
Improvements in the Manufacture of Moulds for Producing Figures
or Articles of Chocolate, and the like.
I, WILHELM FRIEDRICH WUCHERER, Manufacturer, residing at Wurzburg, in
the Kingdom of Bavaria, Germany, 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 :-
My invention relates to the manufacture of moulds for the production of articles
of chocolate and other suitable material, and has for its object to produce a mould
in an expeditious and inexpensive mauner, so that the figure or article produce l
shall be cast or moulded sharp in outline and of an artistic and effective form,
while at the same time allowing an infinite quantity of figures to be expeditiously
moulded or cast.
My invention consists in the production of moulds formed of gypsum, tripolite,
cement or other suitable material in the manner hereinafter described.
In carrying my invention into effect I provide models of the figures or articles
which it is desired to cast or mould in chocolate or in any other suitable material,
of clay, wax or any other suitable material which may be easy to model into an
artistic form, and I mix the gypsum or other suitable material with water and
pour the mixture in the usual way over the model. The model may for convenience
of casting or moulding be divided in several portions as may be required. To
jucrease the hardness of the gypsum a solution of glue, alum or the like may be
added thereto prior to pouring, and as soon as the mould is set it is subjected to
the action of leat at a temperature of about 35 degrees (Centigrade) for such a
length of time as will insure that the mould is perfectly dry. When dry the mould
is placed in an aqueous hot solution of glue or any other suitable solution of
binding material for such a length of time as will enable the liquid to impregnate
into the mould, whereupon the moulds are taken out and dried by subjecting
to the action of heat to the same degree of temperature. The mould produced
is perfectly hard and sharp and takes the varnish which is subsequently applied 80
as to effect hoinogenity by the partial incorporation of the varnish with the upper
surface of the mould.
The copal, amber or other varnish which is used may be applied with &
soft brush to the faces of the mould, so that a glittering layer is produced and a
hard and brittle surface when dry. The varnish may be attenuated with sulphuric
ether or benzole. The moulds are hereupon subjected to the action of heat at a
temperature of about 30 degrees (Centigrade) for such a time as will cause them
to become scentless. The moulds are then ready for use.
It will he seen that in the manufacture of moulds in the manner hereinbefore
described the expense in the production of sheet metal models, or models of iron or
brass is entirely obviated and the chocolate or other figures or articles are capable
bf being produced economically. Moreover the model figure of clay wax or other
plastic material, can be readily and artistically modelled into the form required
and a sharp and clear mould can be taken therefrom so that the figures or articles
produced may have a good and artistic form.
It will be seen also that hollow or solid figures of any size even in extra largo
sizes may be provided in moulds as hereinbefore described, and the chiselling out
from cocoa blocks or forming of doughy chocolate by which means larger figures
have hitherto been produced but in an imperfect manner may be obviated without
any sacrifice of good effect.

page_text: Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is
(1.) The production of moulds of gypsum tripolite cement or other similar
suitable material for casting or moulding figures, which moulds after setting are
impregnated with an aqueous solution of glue or other suitable material, and after
drying are varnished with copal amber or other varnish so as to produce a hard
glittering and durable surface in which the chocolate or other material may bo cast
and readily removed, substantially as described.
(2.) The production of moulds substantially as and for the purpose hereinbefore
described.
MARKS & CLERK,
18, Southampton Buildings, London, W.C., and
13, Temple Street, Birmingham, Agents.