Year: 1887

page_text: Date of Application, 14th Sept., 1887
Complete Specification Left, 14th June, 1888
Complete Specification Accepted, 3rd Aug., 1888
I, WILLIAM HENRY NEVILL of Ferryside, in the County of Caermarthen, South
Wales, Gentleman, do hereby declare the nature of this invention to be as follows:
-
The object of my invention is to utilize and turn to better account than is now
done, the inferior sorts of fuel such as breeze from gas works, small anthracite and
other inferior sorts of coal or refuse fuel or hydrocarbons.
To effect this object melt a certain quantity of common pitch to which I add
(preferably in a boiling state) a certain quantity of ordinary silicate of soda or potash
or other alkali of commerce, but preferably the former for economy, and I find a
proportion of about 3 per cent. sufficient for ordinary kinds of bydrocarbon material.
The pitch so prepared is run off and allowed to set and is then crushed into a
sufficiently fine state of division for mixing.
To any given quantity of the substance to be manufactured into artificial fuel and
which has been previously crushed into a sufficiently fine state of division I add while
both are cold a proportion of the pitch prepared as above. I have found a proportion
of 7 to 8 per cent. sufficient but this will vary with the nature of the material under
treatment. I then heat this mixture to a temperature of 200 to 250° or thereabouts
which may be done on a heated floor or in a mill heated by stean or other suitable
means and fitted with revolving arms, or stirrers so as to produce an intimate
admixture of the various constituents of this material; or other convenient means
may be employed for this purpose. To this mixture while so heated I add common
coal tar preferably in a boiling state and in about the proportion of from 7 to 10 per
cent. of the original material. The entire compound is then well worked and mixed
and afterwards placed in moulds by any convenient means such as are in ordinary use

page_text: and subjected to pressure after which it will in the course of a few hours be fit,
without further treatment, for removal and use.
The proportions above named will necessarily vary with the nature of the materials
to be operated upon and the compound mixture above described may be heated by
steam as is ordinarily practised but preferably, in my opinion, by dry heat; and if
desired the silicate may be added by admixture with the tar or otherwise.
By combining pitch tar from gas works and a suitable proportion of silicate I am
enabled to produce a fuel which may be introduced into the retorts either alone or
combined with coal for the manufacture of gas.
Datal this 14th have at Cambambou 1007
WILLIAM HENRY NEVILL.
By Harris & Mills,
23, Southampton Buildings,
Agents.

page_text: urposes.
I, WILLIAM HENRY NEVILL of Ferryside in the County of Caermarthen, South
Wales, Gentleman, 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 my invention is to utilize and turn to better account than is now
done, the inferior sorts of fuel, such as breeze from gas works, small anthracite and
other inferior sorts of coal or refuse fuel or hydrocarbons.
To effect this object I melt a certain quantity of common pitch, to which I add
(preferably in a boiling state) a certain quantity of ordinary silicate of commerce, but.
preferably the silicate of soda for economy, and I find a proportion of about 3 per
cent. sufficient for ordinary kinds of hydrocarbon material. The pitch so prepared is
run off and allowed to set and is then crushed into a sufficiently fine state of division
for mixing.
To any given quantity of the substance to be manufactured into artificial fuel, and
which has been previously crushed into a sufficiently fine state of division, I add,
while both are cold, a proportion of the pitch prepared as above. I have found a
proportion of 7 to 8 per cent. sufficient, but this will vary with the nature of the
material under treatment. I then heat this mixture to a temperature of 200 to 250°
Fahrenheit or thereabouts, which may be done on a heated floor, or in a mill heated
by steam, or other suitable means, and fitted with revolving arms or stirrers, so as to
produce an intimate admixture of the various constituents of this material, or other
convenient means may be employed for this purpose. To this mixture, while so heated, I
add common coal tar, preferably in a boiling state, and in about the proportion of
from 7 to 10 per cent. of the original material. The entire compound is then well
worked and mixed and afterwards placed in moulds by any convenient means, such as
are in ordinary use, and subjected to pressure, after which it will, in the course of a
few hours, be fit, without further treatment, for removal and use.
The proportions above named will necessarily vary with the nature of the materials
to be operated upon and the compound mixture above described may be heated by
steam, as is ordinarily practised, the steam furnishing the necessary degree of moisture
to the fuel, and, if desired, the silicate may be added by admixture with the tar or
otherwise or I may dissolve the silicate in a suitable proportion of water, preferably
warm, and mix the same with the compound fuel, before submitting it to heat, by
which means I, at one and the same operation, add thereto the required silicate, and
the necessary degree of moisture.
In this case the compound fuel is to be heated by means of dry heat, preferably
upon a hot plate, prior to moulding.

page_text: By combining pitch, tar from gas works, and a suitable proportion of silicate, I am
enabled to produce a fuel which may be introduced into the retorts either alone or
combined with coal for the manufacture of gas.
I can, if desired, dispense with the use of tar and employ the silicate in conjunction
with pitch for admixture with the material under treatment.
1 find that the addition of silicious matter, preferably sea sand, to the compound
fuel is advantageous and may be made in the proportion of 2 to 20 per cent., according
to the nature of the fuel required, but I do not confine myself to these proportions.
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 :-
In artificial fuel of the character hereinbefore referred to, the employment of
silicates, in manner substantially as hereinbefore described.
Dated this 14th day of June 1888.