IMPROVE- MENTS IN HOLLOW PLATES FOR HYDRAULIC PRESSES
Year: 1862

page_text: LETTERS PATENT to Richard Archibald Brooman, of 166, Fleet Street,.
in the City of London, Patent Agent, for the Invention of "IMPROVE-
MENTS IN HOLLOW PLATES FOR HYDRAULIC PRESSES."-A communication.
from abroad by Charles Felix Petit, Jules Emile Petit, Hippolyte
Petit, and Hyacinthe Leon Lemoult, all of Grenelle, near Paris,.
France.
PROVISIONAL SPECIFICATION left by the said Richard Archibald
Brooman at the Office of the Commissioners of Patents, with his
Petition, on the 5th July 1862.
I, RICHARD ARCHIBALD BROOMAN, of 166, Fleet Street, in the City of
London, Patent Agent, do hereby declare the nature of the said In-
vention for "IMPROVEMENTS IN HOLLOW PLATES. FOR HYDRAULIC PRESSES,"
(communicated to me from abroad by Charles Felix Petit, Jules Emile
Petit, Hippolyte Petit, and Hyacinthe Leon Lemoult, all of Grenelle, near
Paris, France,) to be as follows:-
In some hydraulic presses solid plates are used. This Invention refers to

page_text: hollow plates which have hitherto been made in several parts, united by joints
and rivets, the result of which is that fatty and other matters are found to
obstruct the passages within the plates for the circulation of steam or other
heating medium, necessitating frequent repairs and cleaning of the plates.
Now this Invention consists in making the plates in one piece of malleable
cast iron, or of any other suitable metal or metallic alloy. Apertures
or channels are formed in the plates of any desired shape, round, oval, square,
spiral, or otherwise. In some cases the plates are made in top and bottom
pieces, which are placed one on the other.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Richard Archibald Brooman in the Great Seal Patent Office
on the 5th January 1863.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, RICHARD
ARCHIBALD BROOMAN, of 166, Fleet Street, in the City of London, Patent
Agent, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Fifth day of July, in the year of our Lord
One thousand eight hundred and sixty-two, in the twenty-sixth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me, the
said Richard Archibald Brooman, Her special licence that I, the said Richard
Archibald Brooman, my executors, administrators, and assigns, or such
others as I, the said Richard Archibald Brooman, my executors, adminis-
trators, 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 HOLLOW PLATES FOR HYDRAULIC
PRESSES," (communicated to me from abroad by Charles Felix Petit, Jules
Emile Petit, Hippolyte Petit, and Hyacinthe Leon Lemoult, all of Grenelle,
near Paris, France, upon the condition (amongst others) that I, the said
Richard Archibald Brooman, my executors 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

page_text: 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 Richard Archibald 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 Drawings hereunto
annexed, that is to say:
This Invention refers to hollow plates used for receiving a heating medium,
and employed in expressing oils, and in separating fatty and oily matters from
stearine, the manufacture of candles, and in similar operations. These plates
have hitherto been made in several parts united by joints and rivets, the result
of which has been that fatty and other matters have entered and obstructed
the passages within the plates for the circulation of steam or other heating
medium, necessitating frequent repairs and cleansing of the plates. Now this
Invention consists in making the plates in one piece of malleable cast-iron, or
any other suitable metal or metallic alloy, with apertures or channels formed
in the plates of any desired shape, round, oval, square, spiral, or otherwise, for
the distribution of the heating medium. In some cases the plates are made
in top and bottom pieces, which are placed one on the other.
of
Figure 1 of the accompanying Drawings is a plan, and Figure 2 is an end
view of a plate, constructed according to this Invention. a is the plate, the
upper portion of which is somewhat raised, in order that the fatty or oily
matter resulting from the working of the press may not penetrate the joint
formed by the cover, and thereby obstruct the passages in the plate, through
which the heating medium passes. Figure 3 is a perspective view of the
cover b. The passages shown at Figure 2 are round, and run perpendicularly;
but they may be of any other desired shape or form, and run in any direction.
The outlet of the heating medium from the channels is regulated according to
circumstances.
The number of heating channels may be varied, as well
as their
shape; for example, they may be round, oval, square, rectangular, or
they may be spiral, so as to traverse over the whole length and breadth of the
plates. The heating medium may be sent through the top, the sides, or
the bottom of the plates. A main pipe may be employed for receiving and
distributing the heating medium. When a serpentine channel is made for the
heating medium, only one inlet and one outlet in the plates will be required.
Any heating medium may be employed as water, steam or superheated steam,
gases, and liquids.

page_text: And having now described the nature of the said Invention, and in what
manner the same is to be performed, I déclare that I claim making the plates
for hydraulic presses substantially in manner herein-before described.
In witness whereof, I, the said Richard Archibald Brooman, have here-
unto set my hand and seal, this Fifth day of January, One thousand
eight hundred and sixty-three.
R. A. BROOMAN. (L.S.)