Improvements in Treating Small Anthracite Coal and Rendering the same Conveniently Available for Use as Fuel.
Year: 1888

page_text: Date of Application, 26th Jan., 1888
Complete Specification Left, 24th Nov., 1888
Complete Specification Accepted, 26th Jan., 1889
Improvements in Treating Small Anthracite Coal and Rendering the
same Conveniently Available for Use as Fuel.
I, JOHN TYNDALL WILLIAMS, of 57, Bond Street, Swansea, in the county of
Glamorgan, trader in hardware, do hereby declare the nature of this invention to be
as follows:-
This invention consists in treating and thereby converting to convenient use as fuel
small anthracite coal hitherto wholly or in large part wasted.
Under this invention the small coal is compounded in a pug mill, or other like
machine, with clay and cement or lime, and thereafter made into blocks or balls which
are then dried and hardened by subjection to heat.
To protect the blocks of manufactured fuel from subsequent disintegration or injury
from exposure to the weather they are, after having been dried and hardened as above
mentioned, coated with tar, pitch, lime or other suitable substance or liquid.
The following proportions of the ingredients compounded are found to give good
results in one ton of the manufactured fuel; small anthracite coal 14 cwts. ; clay
5 cwts., and cement or lime
:
cwt.
These proportions may, however, be varied.

page_text: Rite Coal and entering the
same Conveniently Available for Use as Fuel.
I JOHN TYNDALL WILLIAMS of 57 Bond Street, Swansea in the county of
Glamorgan, trader in hardware, 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 :—
This invention, which consists more particularly in treating "small" anthracite coal
for the purpose of adapting the same for use as fuel, is applicable also to dealing in
the same manner with the "small" of other kinds of coal. Also with "small" coke
or " breeze."
Under this invention the small coal or coke is, after having been dried, compounded
in a pug mill or otherwise mixed with one or more of the following ingredients :-
blue clay, fire clay, shale or Aberthaw lime.
The compound is then made under pressure into bricks, briquettes, cubes or other
conveniently shaped blocks or bodies which, for protection against disintegration or
injury from exposure to damp and other atmospheric influences, are coated with one or
more of the following:-tar, pitch, resin, mineral wax, lead soap or other like substance
or substances suitable for the purpose.
The proportions in which the ingredients employed are mixed together vary with the
character desired to be imparted to the fuel, which character depends upon the
particular purpose for which the fuel is required.
The following proportions are found to give good results :-In one ton of the
manufactured fuel; small coal, 14 cwts.; clay, 5 cwts. and cement or lime cwt.
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 :-
1. Treating "small" anthracite and other small coal or coke by mixing the same
with one or more of the following ingredients:-blue clay, fire clay, shale or Aberthaw
lime, and subsequently pressing the same into bricks, briquettes, cubes, or other
conveniently shaped bodies, substantially as described.
2. Coating bricks, briquettes and other shaped bodies or blocks of small anthracite
coal, or other small coal or "breeze" compounded with one or more of the substances
mentioned in the preceding claim, with one or more of the following substances or
liquids or preparations:-tar, pitch, resin, mineral wax, lead soap, or other like or
suitable substance, substantially as hereinbefore described.
Dated this 23rd day of November 1888