A New or Improved Method of Manufacturing Artificial Stucco-work.
Year: 1889

page_text: Date of Application, 15th Feb., 1889
Specification Accepted, 25th May, 1889
COMPLETE SPECIFICATION.
A New or Improved Method of Manufacturing Artificial
Stucco-work.
We, ERNEST CHARLES DE MEJER of The Weir, Hessle, Traveller, and THOMAS
GREENWOOD of Greens Court, Briggate, Leeds, Painter and Decorator, both in the
County of York, 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 :-
The object of our invention is to make what we call "paper-stucco" capable of
receiving the most delicate or boldest impressions or lines by moulding, and superior
in effect and durability to those produced in ordinary stucco.
For the above purpose we employ any required number of sheets of paper,
according to the depth of moulding or impression required. Between each layer or
sheet of paper is applied mixture, consisting of liquid glue, whiting or chalk, gypsum,
a little siccative, and a few drops of sulphuric acid, which are mixed together forming
an adhesive paste.
The mixture may be composed of the following proportions
100 parts -
45
35
12호
"
"
"
دو
-
-
-
Liquid glue
Whiting or chalk
Gypsum
Siccative
Sulphuric acid
The first layer of paper having been pressed down into the matrice or mould is
then coated with the mixture and covered with a further layer of paper, and by
pressure this is joined to the first layer, and again covered with the mixture followed
by another layer of paper, and so on, until the desired depth or thickness has been
obtained.
The mould is used in a heated state, and in consequence of the heat and pressure
the moist mixture penetrates. the layers of paper, whereby the whole becomes most
pliable, and the united mass assumes after the pressing process a hardness almost
equal to that of metal.

page_text: When very deep or difficult impressions are required, linen layers are substituted
for the paper layers.
After the desired pressure has been given, the impressed material after being
taken out of the mould is coated with a mixture of chalk and glue, and then allowed
to dry, presenting the appearance of moulded clay, after which the moulded pieces
may be painted.
When preferred the moulded or pressed piece may be covered with satin or silk ;
in this case the piece is coated with a solution of gelatine which is allowed to dry
thereon. Before being applied the satin or silk is steamed to make it moist and
elastic and then put onto the moulded piece which is caused to adhere thereto by
pressure.
The moulded piece may also be covered with tin-foil; in this case such moulded
piece is covered with a coating of chalk and glue, and such tin-foil adheres so
closely to the form that all lines however delicate or faint are distinctly seen.
Press pieces covered in this way may be cleaned with a wet cloth without injury.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is :-
1st. The manufacture of "paper-stucco" from paper or linen layers, coated with
a moist mixture of liquid glue, whiting or chalk, gypsum, siccative and sulphuric
acid, substantially as herein set forth.
2nd. The coating and covering of the moulded or pressed pieces, substantially as
herein set forth.
Dated this 15th day of February 1980
J. W. HARDING,
Agent for the Applicants.