Improvements in the Manufacture of Fuel Blocks.
Year: 1896

page_text: PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of Fuel Blocks.
I, WILLIAM BAKER HARTRIDGE, of Cloverly, Spencer Road, South Croydon, Director
of Public Company, do hereby declare the nature of this invention to be as
follows:-
In my Specification No. 12,389 of 1893 I have described fuel blocks each consisting
of a shell of carbonaceous material filled with coal and the like. My present
invention relates to means of economically manufacturing such blocks, which I effect
as follows:
I make a paste of carbonaceous and agglutinant material as set forth in my
previous specification, above referred to, and I extrude this paste through a die in
the form of a tube of circular, rectangular or other section, in suitable lengths which
I dry and then charge with coal dust or other combustible material such as is
mentioned in my prior specification, closing the ends of the charged lengths with
suitable plugs which may be coated before or after their insertion with a thin paste
of material like that of which the tube is composed.
A convenient form of plug is a cup stamped from paste-board preferably of wood
pulp, the elastic edge of the cup serving to secure it in position. Instead of
employing dextrine as the agglutinating substance in preparing the material for the
tubes molten pitch or other resinous or bituminous material may be employed and
the plugs for closing the ends of the tubes may be of similar composition.
Dated this 5th day of November 1896.
ABEL & IMRAY,
Agents for the Applicant.
COMPLETE SPECI
TON.
Improvements in the Manufacture of Fuel Blocks.
I, WILLIAM BAKER HARTRIDGE, of Cloverly, Spencer Road, South Croydon, Director
of Public Company, 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:-
In my Specification No. 12389 of 1893 I have described fuel blocks each consisting
of a shell of carbonaceous material filled with coal and the like.
My present invention relates to means of economically manufacturing such blocks,
which I effect as follows:-I make a paste of carbonaceous and agglutinant material
as set forth in my previous specification above referred to, and I extrude this paste
through a die in the form of a tube of circular, rectangular, or other section, in
suitable lengths which I dry and then charge with coal dust or other combustible

page_text: material such as is mentioned in my prior specification, closing the ends of the
charged lengths with suitable plugs which may be coated before or after their insertion
with a thin paste of material like that of which the tube is composed.
A convenient form of plug is a cup stamped from paste board preferably of wood
pulp, the elastic edge of the cup serving to secure it in position. Instead of
employing dextrine as the agglutinating substance in preparing the material for the
tubes, molten pitch or other resinous or bituminous material may be employed and
the plugs for closing the ends of the tubes may be of similar composition.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
A fuel block consisting of a length of tube made of agglutinated carbonaceous
material, filled with coal or the like and closed at the ends with suitable plugs,
substantially as described.
ABEL & IMRAY,
Agents for the Applicant.