Improvements in the Manufacture of Artificial Fuel.
Year: 1892

page_text: Date of Application, 16th Feb., 1892
Complete Specification Left. 15th Nov. 1892-Accented. 14th Jan. 1893
PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of Artificial Fuel.
GEORG ALFRED FUCHS of No. 6 Wilhelmstrasse Chemnitz, Saxony,
Chemist do hereby declare the nature of this invention to be as follows:-
Whereas the binding mediums generally employed in the manufacture of coal-
dust bricks or briquets (made from bituminous coal charcoal brown coal crushed
ore and the like) other than pitch and tar, which materials render the manufacture
difficult and expensive-suffer from this disadvantage that their value as fuel is very
small and that thay leave a large amount of ashes behind, the binding medium
according to my invention which consists of pulverised brown coal and especially
bituminous coal or peat either pure or in order to increase the hardness of the bricks
mixed with a small quantity say 1% (one per cent.) of quicklime gypsum or
cement suffices to do away with above said disadvantages.
Such mixtures may be formed according to their dampness either by means of the
ordinary brick presses into hard resisting bricks or by means of brick machines or
by hand into soft bricks which will harden when dry.
Dated this 16th day of 1000
C. R. BONNE & Co.,
57 & 58, Chancery Lane, W.C.,
Authorised Patent and Trade Mark Agents.
COMPLETE SPECIFICATION.
Improvements in the Manufacture of Artificial Fuel.
I, GEORG ALFRED FUCHS, Apothecary, of 8, Zabelstrasse, Gera, in the
German Empire, 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 :-
Many of the binding materials hitherto employed in the manufacture of briquettes
from coal, charcoal, coke and lignite (of a kind not capable of being formed into
bricks without foreign admixture), have the drawback, that their own fuel value is
very low, and that they produce a relatively large quantity of ashes. Tar and
pitch, which are sometimes used as binding materials, and which produce more
heat, are frequently expensive or render the manufacture too complicated.
In order to avoid these drawbacks, I employ finely divided lignite or peat, of a
kind which is capable of being formed into briquettes without any foreign
admixture. Such mixture is converted into hard and tough briquettes by means of
moulds and strong pressure, without the use of artificial heat, for which purpose an
ordinary briquette press may be employed. The briquettes thus produced are
ready for immediate transport and use.
The quantity of the binding material depends, of course, on the nature of the
raw material employed and should be determined by experiment.
As a rule, I employ from 15 to 30 per cent. of "binding" lignite or peat (that
is lignite or coke which can be formed into briquettes by the mere application of
pressure) and from 85 to 70 per cent. of small coal, the fine lignite or peat dust and
the moisture enveloping the particles of coal and forming with the latter briquettes,
when subjected to strong pressure. In some exceptional cases, however, 10 per cent.
of "binding" lignite or peat may be sufficient, and in others, as much as 40 per cent.
may be required.
The briquettes leave the press in a solid condition and are ready for immediate use.

page_text: Having now particularly described and ascertained the nature of the said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
The process for the manufacture of briquettes from coal, charcoal, coke or
similar material (including lignite of a kind not capable of forming briquettes
without foreign admixture), which consists in mixing the said material in a finely
divided condition with finely divided lignite of a kind capable of being formed into
briquettes by mere pressure without the addition of any binding material, or with
finely divided peat having the same property, and subjecting the mixture to strong
pressure, without artificial heating, and without adding any other binding substance,
substantially as described.
Dated His 14 day or
740T 1901910NT
G. A. FUCHS,
By Fairfax & Wetter,
433, Strand, London, Agents.