IMPROVEMENTS IN THE MANUFACTURE OF MOULDS FOR MOULDING GLASS OR LIKE MATERIAL.
Year: 1868

page_text: LETTERS PATENT to Clinton Edgcumbe Brooman, of the Firm of
Robertson, Brooman, and Company, of 166, Fleet Street, in the
City of London, Patent Agents, for the Invention of "IMPROVEMENTS
IN THE MANUFACTURE OF MOULDS FOR MOULDING GLASS OR LIKE MATERIAL.'
-A communication from abroad by Jean Baptiste Lhote, of
Paris, France.
PROVISIONAL SPECIFICATION left by the said Clinton Edgcumbe
Brooman at the Office of the Commissioners of Patents, with his
Petition, on the 28th February 1868.
I, CLINTON EDGCUMBE BROOMAN, of the Firm of Robertson, Brooman,
and Company, of 166, Fleet Street, in the City of London, Patent Agents,
do hereby declare the nature of the said Invention for "IMPROVEMENTS
IN THE MANUFACTURE OF MOULDS FOR MOULDING GLASS OR LIKE MATERIAL," to be
as follows:-
This Invention consists in manufacturing the body of the moulds
from the material which is formed in the interior of gas retorts, and

page_text: which is sometimes called "carbon," or "graphite," or "corrosion." I
either employ this material in its natural state or I pulverize it and
then agglomerate it by boiling it for about half an hour in neat's
foot oil and ammonia; or any other composition or binding material
may be used to agglomerate the "carbon," and then to give shape to
the mould.
When I employ the "carbon" in its natural state, as taken out of
the retort without pulverizing it or agglomerating it by a binding
material, I cut and work it so as to obtain directly in its mass the
mould, the form of which will vary according to the article to be blown 1
therein.
When moulds are required to blow articles of large size I join or
connect, by screws or otherwise, several pieces of the "carbon" so as to
obtain the necessary size for the mould.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Clinton Edgcumbe Brooman in the Great Seal
Patent Office on the 25th August 1868.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, CLINTON
EDGOUMBE BROOMAN, of the Firm of Robertson, Brooman, and Company,
of 166, Fleet Street, in the City of London, Patent Agents, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-eighth day of February, in the
year of our Lord One thousand eight hundred and sixty-eight, in the
thirty-first year of Her reign, did for Herself, Her heirs and successors,
give and grant unto me, the said Clinton Edgcumbe Brooman, Her
special licence that I, the said Clinton Edgcumbe Brooman, my
executors, administrators, and assigns, or such others, as I, the said
Clinton Edgcumbe Brooman, my executors, administrators, and assigns,
should at any time agree with, and no others, from time to time and
at all times thereafter during the term therein expressed, should and
lawfully might make, use, exercise, and vend, within the United
Kingdom of Great Britain and Ireland, the Channel Islands, and Isle
of Man, an Invention for "IMPROVEMENTS IN THE MANUFACTURE OF MOULDS

page_text: FOR MOULDING GLASS OR LIKE MATERIAL," (communicated to me from abroad
by Jean Baptiste Lhote, of Paris, France,) upon the condition (amongst
others) that I, the said Clinton Edgcumbe Brooman, my exccutors or
administrators, by an instrument in writing under my, or their, or one
of their hands and seals, should particularly describe and ascertain the
nature of the said Invention, and in what manner the same was to be
performed, and cause the same to be filed in the Great Seal Patent
Office within six calendar months next and immediately after the date
of the said Letters Patent.
.
NOW KNOW YE, that I, the said Clinton Edgcumbe Brooman, do
hereby declare the nature of the said Invention, and in what manner
the same is to be performed, to be particularly described and ascertained
in and by the following statement thereof, reference being had to the
accompanying Drawings, and to the figures and letters marked thereon,
that is to say :-
This Invention consists in manufacturing the body of moulds for
moulding glass or like material from the material which is formed
in the interior of gas retorts, and which is called "graphite," or
"carbon," or "corrosion." This material may be employed either in its
natural state or it may be agglomerated.
When I employ it in the state of agglomeration I pulverize it and I
boil it for about half an hour, more or less, in neat's foot oil and
ammonia, say 28 ounces of neat's foot oil and 7 ounces of ammonia; or
the graphite after being pulverized may be agglomerated by an agglu-
tinant, such as molasses, for example, say one part of molasses to three
parts of powdered graphite. I place this paste in a cast-iron tube
opening on a hinge and well luted; I submit it to a heat of 1,470 to 1,830
degrees Fahrenheit, for about 8 hours, more or less; I then withdraw
it from the fire, allow it to cool, remove the luting, open the tube, and
take out the agglomerated graphite.
I do not limit myself to the preparations above described, for I can
employ any binding material which will agglomerate the graphite to
form the mould.
When I employ the graphite in its natural state as it comes from
the retort I dispense with the pulverization and agglomeration; I cut
and work it so as to obtain the mould directly in its mass, the form of
which mould will vary according to the article to be blown therein.

page_text: When moulds are required to blow articles of large size I join or
connect, by screws or otherwise, several pieces of the graphite, so as to
obtain a mass sufficiently large to form the mould.
In the annexed Drawings Figure 1 represents in plan a graphite
mould; Fig. 2 shows the mould open. The mould is in two parts A, A,
which open on a hinge B. A strong piece of sheet metal may be passed
round the two parts of the mould; but this metal may be dispensed
with and the inner ends of the two arms or handles C, C, for opening
and closing the mould may be secured by screwing directly to the
graphite. The interior configuration of the mould may be made to
correspond with the form of any object desired to be moulded. To
prevent oxidation and rust the sheet metal before named and the
arms C, C, may be galvanized.
And having now described the nature of the said Invention, and in
what manner the same is to be performed, I declare that I claim as
the "Improvements in the Manufacture of Moulds for Moulding Glass
or like Material,"
First. Manufacturing the moulds, as herein-before described, from
the graphite or material which is formed in the interior of gas retorts.
Second. Manufacturing the moulds by pulverizing the graphite and
then agglomerating it by a binding material, as herein-before described.
Third. Manufacturing the moulds by cutting and working the graphite
in its natural state into the required form, as herein-before described,
without pulverizing and agglomerating it.
Fourth. Manufacturing the moulds, especially when required to be
of large size, by joining or connecting several pieces of the graphite, as
herein-before described.
In witness whereof, I, the said Clinton Edgcumbe Brooman,
have hereunto set my hand and seal, this Twenty-fourth day of
August, in the year of our Lord One thousand eight hundred
and sixty-eight