IMPROVEMENTS IN THE MANUFACTURE OF FUEL
Year: 1878

page_text: LETTERS PATENT to John Coley Bromfield and James Froderick Lackersteen,
of Poultry Chambers, in the City of London, Civil Engineers, for the In-
vention of "IMPROVEMENTS IN THE MANUFACTURE OF FUEL."
Scaled the 15th November 1878, and dated the 16th May 1878.
PROVISIONAL SPECIFICATION left by the said John Coley Bromfield and
James Frederick Lackersteen at the Office of the Commissioners of Patents on
the 16th May 1878.
JOHN COLEY BROMFIELD and JAMES FREDERICK LACKERSTEEN, of Poultry
Chambers, in the City of London, Civil Engineers. "IMPROVEMENTS IN THE
MANUFACTURE OF FUEL."
This Invention relates to improvements in the manufacture of fuel, and consists
in mixing the dust of coal with a slight proportion, about 5 to 12 per cent., of
Roman or Portland coment, preferably the former, by means of an extract obtained
from the seaweed or other suitable vegetable matter capable of yielding, when
treated in the manner herein-after described, a mucillaginous or adhesive solution.
In carrying our Invention into effect the seaweed may be first steamed in a
close-jacketed cylinder for a few minutes, and then boiled to render it softer, and
pressed in a hydraulic press; or if found preferable the seaweed may be simply
boiled before pressure.
A mucillaginous or adhesive solution is obtained by means of this treatment of
seaweed or other similar vegetable matter, with which coal dust and cement (the
latter, which may be either. Roman or Portland, being in the proportion of from
about 5 to 12 per cont.) are mixed in the ordinary manner in which cement, mortar,
or other similar material is mixed. The residual matter after the mucillage has
been extracted may be carbonized and added to the mixture if desired.
The combined materials are then moulded to any desired shape by hand, or by
means of a brick-making or other suitable machine, working either by hand or
steam power.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said John Coley Bromfield and James Frederick Lackersteen in the Great
Seal Patent Office on the 16th November 1878.
JOHN COLEY BROMFIELD and JAMES FREDERICK LACKERSTEEN, of Poultry
Chambers, in the City of London, Civil Engineers. "IMPROVEMENTS IN THE
MANUFACTURE OF FUEL."
This Invention relates to improvements in the manufacture of fuel, and consists
in mixing the dust of coal with a slight proportion, about 5 to 12 per cent., of
Roman or Portland cement, preferably the former, by means of an extract obtained
from seaweed, or other similar vegetable matter capable of yielding when heated
in the manner herein-after described, a mucillaginous or adhesive solution.
In carrying our Invention into effect the seaweed may be first steamed in a
close-jacketed cylinder for a few minutes, and then boiled to render it softer, and
pressed in a hydraulic press; or if found preferable the seaweed may be simply
boiled before pressure.
A mucillaginous or adhesive solution is obtained by means of this treatment of
seaweed or other similar vegetable matter, with which coal dust and cement (the
latter, which may be either Roman or Portland, being in the proportion of from
about 5 to 12 per cent.) are mixed in the ordinary manner in which cement, mortar,
or other similar material is mixed. The residual matter after the mucillage has
been extracted may be carbonized and added to the mixture if desired.
The combined materials are then moulded to any desired shape by hand, or by
means of a brick-making or other suitable machine, working either by hand or
steam power.
And having now described the nature of our said Invention, and in what manner
the same is to be performed, we declare that we claim as our improvements in the
manufacture of fuel, the combination of coal dust or ground coal and Roman or
Portland cement (preferably the former), in or about the proportions named, by
means of a mucillaginous extract obtained from the treatment of seaweed or other
similar vegetable matter, the carbonized residual matter of which may be added if
desired in the manner herein-before described and for the purposes set forth.
In witness whereof, we, the said John Coley Bromfield and James Frederick
Lackersteen, have hereunto set our hands and seals, this Fourteenth day of
November, One thousand eight hundred and seventy-eight.
Witness,
EDGAR EDMONDS,
Patent Agent,
166, Fleet Street,
London, E.C.
(L.S.)
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J. COLEY BROMFIELD.
JAMES. F. LACKERSTEEN. (L.S.)
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