An Improved Artificial Stone.
Year: 1891

page_text: Date of Application, 25th Apr., 1891
Complete Specification Left, 25th Jan., 1892-Accepted, 27th Feb., 1892
PROVISIONAL SPECIFICATION.
An Improved Artificial Stone.
I William WILSON HORN of the firm of Horn & Son of 151 Strand, in the
County of Middlesex, Patent Agent, do hereby declare the nature of this inven-
tion (a communication to me from Wallace L. Mason, Thomas W. Blakey, and
John A. Wright, all of Keene, State of New Hampshire, United States of.
America, Inventors,) to be as follows:-
My invention relates to an improvement in the manufacture of artificial stone,
and more particularly to the composition of matter composing such stone, and the
successive steps of the process, by which the component parts are united into a
homogeneous mass, moulded into shape and hardened into articles of a practically
impervious, fire-proof, and indestructible nature.
The composition consists of the following ingredients combined in substantially
the proportions named, to wit:
Granite, pulverized or granulated
Flint, pulverized
Feldspar, pulverized
Fire clay
and a sufficient quantity of water to moisten the mass.
40 parts
دو
-
15
5
"7
"
The steps of the process followed in the manufacture of the material are as
follows: viz. :- -The granite is first calcined or subjected to a sufficiently intense
heat to render the disintegration of the particles of the granite easy.
After being
thus treated the granite is pulverized or granulated, and then sifted into different
grades according to the degree of fineness-
This done, the other ingredients previously prepared for the purposes are
thoroughly mixed and tempered in about the proportions mentioned with the
granulated granite and water, and when soft and pliable, the mixture is pressed or
moulded, into any of the conceivable shapes that such materials are usually made
to assume. But it is especially calculated to be moulded into building blocks,
bricks, tile, terra-cotta, statuary, pottery, friezes, wainscoting or any other useful,
and ornamental articles.
After the material is pressed or moulded into the desired form it is set aside to
dry. When sufficiently dry the moulded articles are placed in saggers and burned
in a kiln the same as fine pottery they being subjected to a temperature of about
4,000 degrees Fahrenheit. The result is a substance resembling natural granite,
and superior to granite in many respects in that it is stronger, its sustaining power
is greater, it is fire proof and practically impervious to water. The articles may be
made in various colors or tints to resemble different color marbles or stones, they
may be glazed or ground off and polished, being susceptible of as fine a polish as
natural granite and the different sized granules may be used in making different
articles.
Dated this 25th of April 1891.
HORN & SON,
Agents for the Applicant.

page_text: invention, (a communication to me from Wallace L. Mason, Thomas W. Blakey
and John A. Wright, all of Keene, State of New Hampshire, United States of
America, Inventors) and in what manner the same is to be performed to be
particularly described and ascertained in and by the following statement :—
This invention relates to an improvement in the manufacture of artificial stone
and more particularly to the composition of matter composing such stone and the
successive steps of the process by which the component parts are united into a
homogeneous mass moulded into shape and hardened into articles of a practically
impervious fireproof and indestructable nature.
The composition consists of the following ingredients combined in substantially
the proportions named, to wit:
Granite, pulverized or granulated
Flint, pulverized
Feldspar, pulverized
Fire clay
and a sufficient quantity of water to moisten the mass.
40 parts
دو
وو
15
-
5
4
"
The steps of the process followed in the manufacture of the material are as
follows: viz. The granite is first calcined or subjected to a sufficiently intense
heat to render the disintegration of the particles of granite easy. After being
thus treated the granite is pulverized or granulated and then sifted into different
grades according to the degree of fineness.
This done, the other ingredients previously prepared for the purpose are
thoroughly mixed and tempered in about the proportions mentioned with the
granulated granite and water, and when soft and pliable the mixture is pressed or
moulded into any of the conceivable shapes that such materials are usually made
to assume. But it is especially calculated to be moulded into building blocks,
bricks, tile, terra-cotta, statuary, pottery, friezes, wainscoting or any other useful
and ornamental articles.
:
After the material is pressed or moulded into the desired form, it is set aside to
dry. When sufficiently dry the moulded articles are placed in saggers and burned
in a kiln the same as fine pottery they being subjected to a temperature of about
4000 degrees Fahrenheit. The result is a substance resembling natural granite
and superior to granite in many respects in that it is stronger, its sustaining power
is greater, it is fireproof and practically impervious to water. The articles may
be made in various colours or tints to resemble different coloured marbles or stones,
they may be glazed or ground off and polished being susceptible of as fine a polish
as natural granite; and the different sized granules may be used in making
different articles.
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:
A composition of matter to be used in the manufacture of artificial stone
articles, consisting in disintegrated granite, flint and clay or equivalent binding
material, the whole mixed with a sufficient quantity of water or other liquid to
moisten the mass and produce a homogeneous substance, substantially as set
forth.
Dated this 25th day of January 1892.
HORN & SON,
Applicant's Agents.