A NEW OR AN IMPROVED METHOD OR PROCESS OF PRODUCING MURAL CEILING AND OTHER ARCHITECTURAL HANGINGS. DECORATIONS OR: Ի ORNAMENTS 2 PROVISION
Year: 1883

page_text: LETTERS PATENT to Samuel Caleb Overton of Mildmay Chambers Union.
Court Old Broad Street in the City of London Architect and Surveyor for an
Invention of A NEW OR AN IMPROVED METHOD OR PROCESS OF PRODUCING
MURAL CEILING AND OTHER ARCHITECTURAL HANGINGS. DECORATIONS OR:
Ի
ORNAMENTS
2
PROVISIONAL SPECIFICATION left by the said Samuel Caleb Overton at the.
Office of the Commissioners of Patents on the 7th May 1883.
SAMUEL CALEB OVERTON of Mildmay Chambers Union' Court Old Broad Street
in the City of London Architect and Surveyor "A NEW OR AN IMPROVED METHOD
OR PROCESS OF PRODUCING MURAL CEILING AND OTHER ARCHITECTURAL HANGINGS
DECORATIONS OR ORNAMENTS
"
In carrying my Invention into effect I take 100 lbs. of wood paper or other pulp
(preferably wood) 25 lbs. of fine Asbestos powder and 6 lbs of Selentic Cement and
reduce the whole to a pulpy mass or semi-liquid state such as is used by paper
manufacturers. I then run this pulpy mass into open moulds of any suitable shape
and material and exhaust the superfluous water from them by, pressure evaporation
and absorption. I then place the moulds with their contents into a hot air room
for drying. When the contents are sufficiently dry to remove from the moulds I
back them up with tough strong paper and coat on both sides with a solution of
silicate of potash which will give the articles additional strength or cohesive
property and consequently greater rigidity and at the same time form a glazed
surface which will render the hanging decoration or ornament sufficiently water-
The article
proof to resist moisture or damp as well as making it uninflammable.
is then replaced in a drying room with a slow heat, and when thoroughly dry it
may be coloured in the ordinary, way either with distemper or paint.
By the combination of the hereinbefore mentioned ingredients in the proportion
specified and treated in the manner described I produce a harder more rigid and
firmer article than any such in the market being less liable to crack or warp
and less perishable by atmospheric action as well as being damp resisting and
uninflammable.
:
f

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, and of an
Order of the Lord Chancellor, filed by the said Samuel Caleb Overton in the
Patent Office on the 15th January 1884.
SAMUEL CALEB OVERTON of Mildmay Chambers, Union Court Old Broad Street
in the City of London Architect and Surveyor
'A NEW OR IMPROVED METHOD
OR PROCESS OF PRODUCING MURAL CEILING AND OTHER ARCHITECTURAL HANGINGS,
DECORATIONS OR ORNAMENTS
دو
My invention relates to the manufacture of architectural ornaments and
decorations to be applied for mural, ceiling and other internal ornamentation and
to the manufacture of other decorative fabrics or articles generally, having relief 1
designs on their surfaces and which can be produced in open moulds.
In carrying my invention into effect I make a composition of the following
ingredients, viz, wood pulp or paper pulp (preferably the former) fine asbestos
powder and selenitic cement.
The best proportions for the several ingredients are as follows, but I would have 1
it understood that I do not limit myself thereto as the same may be varied within
reasonable limits without departing from my invention.
.
Dry pulp
Asbestos powder
100 parts by weight.
25
do
do
6 do
.
Selenitic cement
do
I reduce this combination of ingredients to the state of a semi-liquid mass or
pulp such as used by paper makers and run it into open moulds made preferably of
metal by electrotyping, casting or otherwise and forming counterparts of the
designs, figures or ornaments to be produced.
I then express or extract the superfluous moisture by pressure with the hand and 2
by absorption by sponges and other absorbent materials. I afterwards place the
moulds in a hot air room at a suitable temperature to slowly evaporate the
moisture. When the moulded products are sufficiently dry to bear handling I
remove them from the moulds and back them up with strong tough porous paper
or canvas which is caused to adhere over the whole rear surface and to follow the 3
irregularities of its configuration. The paper or canvas is made to adhere by
india rubber cement or by glue or other adhesive material.
I then coat the front and back surfaces with a solution of silicate of potash
which penetrates or sinks into the body of the moulded article and imparts
greater cohesiveness to the compound and consequently greater strength and 3
rigidity and at the same time forms a glazed surface which renders the decoration
ornament or other article sufficiently waterproof to resist moisture and likewise
uninflammable.
The article is then again placed in a drying room and submitted to a slow heat
until thoroughly dry after which it may be colored in the ordinary way either 4
with distemper or paint.
By means of the above mentioned combination of ingredients and mode of
treatment I produce a damp resisting and uninflammable article which is harder
stronger less liable to crack or warp and less perishable by atmospheric influences
than any similar article now in the market.
Having described the nature of the said invention and the manner of performing
the same I would observe that I am aware that it has heretofore been proposed to
manufacture architectural ornaments &° from wood pulp or paper pulp and I do
not therefore make any claim to the use of these materials by themselves nor to
4

page_text: the process of moulding articles therefrom nor to the backing of the moulded
articles with paper or canvas but what I do claim as my invention is :-
First The manufacture of architectural ornaments and decorations, for mural,
ceiling and other ornamentation and other decorative fabrics or articles, of a
combination of wood pulp or paper pulp, asbestos and selenitic cement, in about
the proportions and treated in the manner substantially as herein before specified.
Second. In the manufacture or production of architectural ornaments and other
decorative fabrics or articles, whether from the combination of ingredients above
specified or from any other composition of which wood pulp or paper pulp is the
basis, the application to the moulded articles produced in the manner above
described of a solution of silicate of potash for the purpose herein specified.
In witness whereof I the said Samuel Caleb Overton have hereunto set my
hand and seal this seventh day of January in the year of our Lord One thousand
eight hundred and eighty four.