An Improved Decorative Artificial Stone.
Year: 1890

page_text: Date of Application, 20th Aug., 1890
Complete Specification Left. 20th May. 1891-Accepted, 4 h July, 1891
PROVISIONAL SPECIFICATION.
An Improved Decorative Artificial Stone.
I ALEXANDER MCLEAN of 2 Sunning Hill Road, Lewisham in the County of
Kent, Cement Manufacturer, do hereby declare the nature of this invention to be
as follows:-
--
The object of this invention is to produce a decorative artificial stone for various
purposes.
The material may be made in any form, such as flat slabs or blocks, or with
rounded surfaces, by the aid of considerable pressure in porous moulds.
In carrying out this invention, I employ ordinary concrete, made with Portland
cement and sand, to form the back of the slab or block, and upon the face of this
packing I lay chips of marble of various colours and small pieces of metal.
I then subject the mass to pressure, and when set, I rub down the face, when a
highly decorative slab or block will be produced.
The marble chips may be arranged in a pattern, or not, as desired, and the metal
may be inserted in any desired manner.
The metal which I have found to give very fine effects, is what is known as
"brass spelter," but I do not confine myself to this, as any metal which has, and
will keep a lustrous appearance, will answer the purpose.
The material, when produced with Portland cement, may be used for external
decoration, but for internal decoration, I prefer to use Keene's or Parian cement
as a backing for the slabs, producing the face in the manner above described.
Dated this 20th day of August 1890.
NEWTON & SON,
Agents for the Applicant.
COMPLETE SPECIFICATION.
An Improved Decorative Artificial Stone.
1, ALEXANDER MCLEAN of 2 Sunning Hill Road, Lewisham in the County of
Kent, Cement Manufacturer, do hereby declare the nature of this invention and in
what manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement:-
The object of this invention is to produce a decorative artificial stone for various
purposes.
The material may be made in any form, such as flat slabs or blocks, or with
rounded surfaces, by the aid of considerable pressure in porous moulds.
In carrying out this invention, I employ ordinary concrete, made with Portland
cement and sand, to form the back of the slab or block, and upon the face of this
backing I lay chips of marble of various colours and small pieces of metal.
I then subject the mass to pressure, and when set, I rub down the surface in the
well known manner, so as to obtain a polish, when a highly decorative slab or block
will be produced.
The marble chips may be arranged in a pattern, or not, as desired, and the
metal may be thrown on the surface promiscuously, or also arranged according to
a pattern.
The metal which I have found to give. very fine effects, is what is known as “brass
spelter," but I do not confine myself to this, as any metal which has, and will keep,
a lustrous appearance, will answer the purpose.

page_text: The material, when produced with Portland cement, may be used for external
decoration, but for internal decoration, I prefer to use Keene's or Parian cement as
a backing for the slabs, producing the face in the manner above described.
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 1
claim is
The manufacture and use of the improved decorative artificial stone as herein.
described.
Dated this 20th day of May 1801
NEWTON & SON,
Agents for the Applicant.