Improvements in the Manufacture of Briquette Fuel.
Year: 1897

page_text: COMPLETE SPECIFICATION.
Improvements in the Manufacture of Briquette Fuel.
I, AIME GEORGE, of Campdeville-Milly, (Oise), in the French Republic Engineer
and Chemist, 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 relates to the manufacture of briquette fuel from small or dust
fuel, with which is incorporated a certain proportion of "Paste" having a basis
of amylaceous, or feculoid material, the object of the invention being to produce
a non-hygrometric agglomerated paste-fuel capable or resisting rain or moisture,
and which will not develop fungoid growths, at ordinary atmospheric temperatures.
In manufacturing briquette fuel according to my improved method, I add to
the amylaceous, or feculoid materials, which serve as the basis, or chief ingredient,
of the agglutinative paste, certain extracts (either in a dry state, or in solution)
of tannic, or astringent materials. The agglutinative paste is hereby not only
rendered insoluble in water at any temperature less than about fifty degrees
Centigrade, but it also becomes incapable of attracting or absorbing moisture
from the atmosphere. I have moreover ascertained, as the result of trial, that it
is rendered capable of resisting continued rainfall, and I have also found it to
be sufficiently aseptic for most purposes. Where, however, it is necessary to
augment its aseptic properties, I add to the before mentioned ingredients a minute
quantity of suitable antiseptics.
It will be understood by those familiar with the manufacture of briquette fuel
that the proportions, by weight, of the amylaceous or feculoid materials, of the
tannic or astringent extracts (whether the latter be used in a dry state, or in
solution), and of the antiseptics employed, must be varied, within certain limits,
according to their respective origins and properties, and also according to the
nature and composition of the small or dust fuel to be agglomerated. It is, there-
fore, by way of illustration only that the following example of what may, under
ordinary circumstances, be found serviceable proportions is given:
Assuming the chief ingredient of the agglutinative paste to be fecula, the
extract to be added may be extract of chestnut-tree in solution at twenty degrees
Baume, the quantity of which, by weight, should not exceed the weight of the
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page_text: fecula itself. If it be desired to obtain a highly aseptic agglutinative paste, the
antiseptic employed in conjunction with the above ingredients may be
sulphonaphthalate B of soda, the quantity. of which, by weight, should not exceed
one-hundredth of the weight of the fecula itself.
Referring to the same example and assuming it to be proposed to treat hard,
or close-burning coal in the form of small coal or dust, the size of this small
or dust fuel varying between about that of a millet grain and that of a pea, the
weight of the fecula to be employed should be from one and a half hundredths
to two hundredths of the weight of the said small or dust fuel; and it is well
known that, in order to obtain the required paste, the fecula should, in the presence
of about ten times its weight of water, be heated to boiling temperature.
Having now particularly described and ascertained the nature of this invention
and in what manner the same is to be performed, I claim:
1. The improved manufacture of briquette fuel from agglomerated small or
dust fuel, substantially as herein described, and wherein a tannic, or astringent
extract is present in conjunction with an agglutinating agent consisting essentially
of a paste having a basis of amylaceous, or feculoid material
2. In the manufacture of briquette fuel from small or dust fuel agglomerated
by means of a paste having a basis of amylaceous, or feculoid material, adding
thereto a tannic or astringent extract, with or without an antiseptic, substantially
as and for the purposes herein set forth.
Dated this 7th day of July, 1897.
For the the Applicant,
G. G. M. HARDINGHAM,
191, Fleet Street, London, E.C., Chartered Patent Agent.