IMPROVEMENTS IN THE CON- STRUCTION OF PRESSES
Year: 1853

page_text: LETTERS PATENT to George Armitage, of Bradford, in the County
of York, Dyer, for the Invention of "IMPROVEMENTS IN THE CON-
STRUCTION OF PRESSES."
PROVISIONAL SPECIFICATION left by the said George Armitage
at the Office of the Commissioners of Patents, with his Petition,
on the 4th August 1853.
I, GEORGE ARMITAGE, do hereby declare the nature of the said
Invention for "IMPROVEMENTS IN THE CONSTRUCTION OF PRESSES " to be as
follows:-
My Invention relates principally to hydraulic presses, or presses used
for compressing soft goods into solid or smaller dimensions, and instead
of the present method of packing the plates, I propose to use sliding
or telescopic pipes, so that as the steam or water is injected into them
they will be able to accommodate themselves to the different quantities
of bulk thay may be put in the press in the first instance, and also to
the yielding or compressing of them during the process.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said George Armitage in the Great Seal Patent Office,
on the 4th February 1854.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I,
GEORGE ARMITAGE, of Bradford, in the County of York, Dyer, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Royal Letters Patent, bearing date the Fourth day of August, in the
year of our Lord One thousand eight hundred and fifty-three, in the
seventeenth year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said George Armitage, Her special licence
that I, the said George Armitage, my executors, administrators, and
assigns, or such others as I, the said George Armitage, 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 CONSTRUCTION OF PRESSES," upon the condition (amongst others)
that I, the said George Armitage, by an instrument in writing under
iny hand and seal, 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 Royal Letters Patent.
NOW KNOW YE, that I, the said George Armitage, do hereby
declare the nature of my said Invention, and in what manner the same
is to be performed, to be particularly described and ascertained in and
by the following statement (that is to say):
My Invention relates principally to hydraulic presses or presses used
for compressing soft goods into solid substances, or into packages of
smaller dimensions, and also for giving the surfaces of such goods a
better appearance; but instead of the present method of packing the
plates, I use pipes in the form of bends or angles, having one end

page_text: attached to the packing boxes, and the other end working through a
stuffing box into a cistern or receiver, the length of each pipe below its
stuffing box corresponding to the height the fellow packing box rises:
By this contrivance I prevent the leakage and strain on the joints so
much complained of by the methods now in general use.
These my improvements will be clearly understood by reference to
the accompanying Sheet of Drawings, in which the same letters of
reference are used to represent similar parts where different views or
diagrams are shown. Fig. 1, is a front elevation of an hydraulic press
shewing my said improvements, and Fig. 2, an end elevation of the
same. a, represents the cylinder; b, the ram; c, the colums or side
frames; d, the head; e, the packing boxes, supplied with steam on one
side and water on the other by the angle pipes f, having one end
jointed to the packing boxes, as at g, and the other passing through the
stuffing boxes h, into a cistern or receiver i, which is fixed and so
formed that each pipe can enter it and move up and down without
touching the adjacent pipe. To the cistern i, is attached the feed pipe k,
as before stated; the ends of the pipes which enter the cistern are of
such a length that at any position of the packing boxes when at work
they will not come above the stuffing boxes h; their lengths vary for
being attached to the packing boxes and rising with them; they have
corresponding lengths, the lowest being the longest, and the highest the
shortest. Thus it is evident that when the press is set to work with
steam or water in the feed pipes k, passing from thence to the cistern i,
that as the packing boxes e, rise the angle pipes f, will rise with them;
they are kept steain and water tight by the stuffing boxes, and allow
steam and water to enter the packing boxes in a mechanical and
effecient manner.
Having thus fully described the nature and particulars of my said
Invention, and the manner of carrying it into practical effect, I desire
it to be distinctly understood that I do not confine myself to the exact
details of the same, as such may be varied or modified without depart-
ing from the principle thereof. But I claim as of my Invention, and
which has not been hitherto used within this realm to the best of
my knowledge and belief, the method of feeding the packing boxes

page_text: of hydraulic presses with steam or water for the purpose of adjusting
the plates, as herein described and illustrated in the accompanying
Sheet of Drawings.
In witness whereof, I, the said George Armitage, have hereunto
Drawings.
In witness whereof, I, the said George Armitage, have hereunto
set my hand and seal, this Second day of February, One
thousand eight hundred and fifty-four.
Witness, JOHN NORTH,
GEORGE ARMITAGE. (L.S.)
Clerk to the said Geo. Armitage,
Bradford.