Improvements in Moulding or Manufacturing Articles from Rock Waste and other Mineral Substances.
Year: 1888

page_text: Date of Application, 22nd Oct., 1888
Complete Specification Left, 22nd July, 1889-Accepted, 22nd Nov., 1889
PROVISIONAL SPECIFICATION.
Improvements in Moulding or Manufacturing Articles from Rock
Waste and other Mineral Substances.
I ROBERT STONE, of 8 Talbot Court in the City of London Engineer do hereby
declare the nature of my said invention to be as follows:-
The object of my invention is to utilize waste refuse, such as slate marble, spar,
granite, glass, lava, and analogous materials, in the manufacture of enamel statuary,
sleepers, chimney pieces slabs, blocks of all kinds, crockery ware, earthenware, bottles,
casks tanks, pipes, and other useful articles, and for enamelling or surfacing the
same.
My invention consists in melting the aforsaid materials, in a pulverized state,
in combination with vitriol or petroleum or other liquids of a highly heating
nature, such mixed materials being exposed to the heat of a furnace until they are
fused and rendered fluid; in which state they may be run into moulds and formed
into the required shapes, or the fused material may be run upon the surfaces of
materials of a like or analogous nature to form enamel.
I prefer to use a furnace formed in an iron cylinder suitably lined with fire
bricks or other fire resisting material.
Coloring matter is added to the material while in a fluid state.
I do not confine myself to the use of refuse material, as materials of the kinds
above mentioned may be used direct from the mines or pits.
The material is crushed by means of corrugated plain or curved rolls by running
small rolls round the large ones at a high speed.
Dated 22nd Ontahan 1000
GEO. DOWNING,
8, Quality Court, London, Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Moulding or Manufacturing Articles from Rock
Waste and other Mineral Substances.
I ROBERT STONE of 8 Talbot Court in the City of London, Engineer, do hereby
declare the nature of my said 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 my invention is to utilize waste refuse, such as slate, marble, spar,
granite, glass, lava and analogous materials, in the manufacture of enamel, statuary
sleepers, chimney pieces, slabs, blocks of all kinds, crockery ware, earthenware, bottles,
casks, tanks, pipes, and other useful articles, and for enamelling or surfacing the
same.
In carrying out my invention I melt the aforesaid materials together or separately
in a pulverised state or otherwise, in combination with sulphuric acid, nitric acid,
petroleum, or other liquids operating as solvents to the materials. These solvents
have the effect of changing the colour of the materials while under heat.
In mixing such solvent materials as sulphuric acid, nitric acid, petroleum spirit,
or other analogous solvents, I find that 15 gallons (more or less) of any one or any
mixture of the aforesaid solvents to one ton of any one or any mixture of the aforesaid
solid materials is usually sufficient.
In mixing fluxing materials such as carbonate of soda, potash, soda silicate, lime,
marble chips, fish oil, ammonia, linseed oil, or analogous materials, I find that one
hundred weight (more or less) of any one or any mixture of such fluxing materials
[Price 4d

page_text: to one ton of any one or any. mixture of the aforesaid solid materials is usually
sufficient.
As an example in carrying out my invention, the following materials and proportions
may be cited, viz. -1 ton of slate with 12 gallons of petroleum as a solvent, and
6 gallons of fish oil as a flux.
Such mixed materials are then exposed to the heat of a furnace (in which any
ordinary fuel such as coal, or coke may be used) until they are fused and rendered
fluid. The fluid material is then run into moulds and thus formed into the required
shapes or it may be run upon the surfaces of materials of a like or analogous nature
to form enamel.
I prefer to use a furnace formed of an iron cylinder, suitably lined with fire bricks,
or other fire resisting material.
"2
waste
Coloring matter may be added to the material, while in a fluid state.
Although I have specially mentioned" materials, such preference is merely
for the sake of economy, as it is obvious that materials of the description above
mentioned may be used direct from the mines or pits.
The materials are crushed and ground by means of corrugated, plain or curved
rollers, small rollers being fitted near the peripheries of larger rollers, so as to secure
several degrees of fineness by one operation.
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
1. The utilisation of waste refuse of the description aforesaid, substantially as
hereinbefore described.
2. The manufacture of enamel, statuary, sleepers, chimney pieces, slabs, blocks of
all kinds, crockery ware, earthenware, bottles, casks, tanks, pipes, and other useful
articles, and enamelling or surfacing the same, substantially as hereinbefore described.
3. The general combination of materials and processes, together constituting my
improvements in the utilisation of waste and other mineral products, substantially as
herein before described.
000
Dated 2 y
GEO. DOWNING,
8, Quality Court, London, W.C., Agent for Applicant.