IMPROVEMENTS IN HYDRAULIC PRESSES
Year: 1864

page_text: LETTERS PATENT to Edward Cottam, of the Firm of Robinson and
Cottam, of Battersea, in the County of Surrey, Engineer, for the Inven-
tion of "IMPROVEMENTS IN HYDRAULIC PRESSES."
Sealed the 19th May 1865, and dated the 24th November 1864.
PROVISIONAL SPECIFICATION left by the said Edward Cottam at the
Office of the Commissioners of Patents, with his Petition, on the 24th
November 1864.
I, EDWARD COTTAM, of the Firm of Robinson and Cottam, of Battersea, in
the County of Surrey, Engineer, do hereby declare the nature of the said
Invention for "IMPROVEMENTS IN HYDRAULIC PRESSES," to be as follows:-
My Invention consists in constructing accumulative power presses in
manner hereafter stated. I employ a series of two or more presses, and place
them either vertically or horizontally. I continue the ram from the first or
.lowermost press through the bottom of the cylinder of the next.press above or
before it, and fit a piston upon it, and so on for as many series of presses as
may be expedient.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Edward Cottam in the Great Seal Patent Office on the 24th
May 1865.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, EDWARD
COTTAM, of the Firm of Robinson and Cottam, of Battersea, in the County of
Surrey, Engineer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-fourth day of November, in the year of our
Lord One thousand eight hundred and sixty-four,, in the twenty-eighth
year of Her reign, did, for Herself, Her heirs and successors, give and
grant unto me, the said Edward Cottam, Her special licence that I, the
said Edward Cottam, my executors, administrators, and assigns, or such
others as I, the said Edward Cottam, 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 HYDRAULIC PRESSES," upon the condition (amongst
others) that I, the said Edward Cottam, 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 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 Edward Cottam, do hereby, declare the
nature of my said Invention, and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement thereof, reference being had to the Drawing hereunto annexed,
that is to say:-
My Invention consists in constructing accumulative power presses in
manner hereafter stated. I employ a series of two or more presses, and place
them either vertically or horizontally. I continue the ram from the first or
lowermost press through the bottom of the cylinder of the next press above or
before it, and fit a piston upon it, and so on for as many series of presses as
may be expedient.
The accompanying Drawing of one of my improved hydraulic presses shews
the manner in which I carry my Invention into effect. A is the lower
cylinder; B, B, the press bars; C, the lower ram, upon which is placed the

page_text: lesser ram D, which works through a packed aperture in the bottom of the
upper cylinder E, and serves to transmit the pressure from the lower ram C
to the piston F in the upper cylinder E; G, G, are the pipes supplying the
water under pressure to the cylinders A and E; H is the press head.
5 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 constructing
accumulative-power bydraulic presses in manner herein-before described.
In witness whereof, I, the said Edward Cottam, have hereunto set my
hand and seal, this Twenty-second day of May, One thousand eight
hundred and sixty-five.
EDWARD COTTAM. (L.B.)