Year: 1898

page_text: Date of Application, 13th Oct., 1898
Complete Specification Left, 19th Nov., 1898-Accepted, 25th Feb., 1899
I, THOMAS WILLIAM JAMES, of 19, Helena Street, Smethwick, in the County of
Staffordshire, Architect and Builder, do hereby declare the nature of this invention
to be as follows: -
This invention relates to an improved manufacture of imitation or artificial
marble and stone, also bricks and tiles, and stone blocks or other surfaces used
for architectural carving and decorations.
According to my invention I manufacture my improved imitation marble or
stone from mica, blast furnace slag, sand and gravel mixed in suitable proportions
and pressed or moulded by machinery into any desired shape or form.
The blast furnace slag is ground to a fine powder and mixed with the other
substances, and in some cases the sand may be dispensed with, the furnace slag
being used in place thereof, as for instance in articles requiring to be of a smooth
and fine texture.
The said artificial blocks of stone may be coloured as desired with any colours
introduced in the process of manufacture and the said blocks may be glazed by
any suitable substance in any ordinary manner.
Dated this 12th day of October 1898
J. B. FLEURET,
5, Hatton Garden, London, Agent for the Applicant.
I, THOMAS WILLIAM JAMES, of 19, Helena Street, Smethwick, Staffordshire,
Architect and Builder 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 this invention is the manufacture of imitation or artificial marble
or stone, bricks, stone blocks, tiles and the like which are used for buildings and
architectural purposes or for decorating buildings and which may be used in
combination with bricks stone &c. for the purpose of producing various effects.
In manufacturing according to my invention the improved imitation or artificial
marble or stone blocks tiles and the like whether ornamental or plain in design
I use blast furnace slag, sand, gravel and mica with various coloring substances
and ingredients suited to the various imitations required at the time.
The blast furnace slag is ground to fine powder the fineness being regulated
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page_text: according to the use of the blocks to be manufactured for foundations or super-
structures and the gravel may likewise be ground or crushed into convenient size
to suit the purpose in hand, the mica dust and sand being added in sufficient
quantity to serve the purpose in hand and to produce the desired effect in imitating
marble stone and the like. These with various colouring matters are mixed
together with sufficient moisture to bring the mixture into a sufficiently soft or
plastic condition to take the form of various moulds in which the blocks or
formations may be pressed by mechanical or hydraulic pressure to increase their
density and smoothness. The proportions of each of the materials I find best for
the purpose are: powdered slag 50 lbs., fine gravel 30 lbs., washed sand 30 lbs.,
with 10 lbs. of mica dust dissolved in boiling water. Or powdered slag 80 lbs.,
ground gravel or sand 30 lbs. with 20 lbs. of mica dust dissolved in boiling water;
but these quantities may be somewhat varied. In some cases where the blocks or
articles are required to be of a smooth and fine texture the proportion of sand
may be reduced or left out entirely and the gravel in such cases would also be
ground when used with the slag with such mixtures: A small portion of the
sand or silicious matter may be in the form of solvent silica.
The blocks, tiles or other formations made from the mixture may be glazed by
any suitable substance to produce a smooth surface when so required. The mica
dust would be most used in the production of imitations of light colored marbles.
These blocks, slabs, and the like when moulded or moulded and compressed are
allowed to thoroughly dry and set when they are ready for use in building and
other positions.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is
CLAIM.
The imitation artificial marble stone or the like consisting of a mixture of blast
furnace slag sand gravel and mica, or blast furnace slag. gravel and mica ground
and manipulated into a soft condition and colored by coloring matter or not and
moulded into blocks or slabs of various configurations and dried substantially as
herein set forth.
T 1 1 1100 love of Narambar 1898
Dated this 22nd day of November 1898
THOMAS WILLIAM JAMES.
By George Barker,
Fellow of The Chartered Institute of Patent Agents.
Agent for Applicant,
77, Colmore Row, Birmingham.