IMPROVEMENTS IN PRESSES
Year: 1838

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, ROBERT
GARTON, of Beverley, in the County of York, Millwright, send greeting.
WHEREAS Her present most Excellent Majesty Queen Victoria, by Her
Letters Patent, under the Great Seal of Great Britain, bearing date at
Westminster, the Twenty-fifth day of January, in the first year of Her reign,
did, for Herself, Her heirs and successors, give and grant unto me, the
said Robert Garton, Her especial licence, full power, sole privilege and
authority, that I, the said Robert Garton, my exors, adññors, and assigns, or
such others as I, the said Robert Garton, my exors, admors, or assigns,
should at any time agree with, and no others, from time to time and at all
times during the term of years therein expressed, should and lawfully might
make, use, exercise, and vend, within England, Wales, and the Town of
Berwick-upon-Tweed, my Invention of "IMPROVEMENTS IN PRESSES;" in which
said Letters Patent is contained a proviso that I, the said Robert Garton,
shall cause a particular description of the nature of my said Invention, and
in what manner the same is to be performed, to be inrolled in Her said
Majesty's High Court of Chancery within six calendar months next and
immediately after the date of the said in part recited Letters Patent, as in and
by the same, reference being thereunto had, will more fully and at large
appear.
NOW KNOW YE, that in compliance with the said proviso, I, the said
Robert Garton, do hereby declare the nature of my Invention, and the manner
in which the same is to be performed, are fully described and ascertained

page_text: in and by the following statement thereof, reference being had to the Drawing
hereunto annexed, and to the figures and letters marked thereon (that is
to say):-
My Invention relates to a mode of combining screws and wedges into a
press, whereby considerable pressure may be obtained; and in order to give
the best information in my power for carrying out the Invention, I will
proceed to describe the Drawing annexed.
DESCRIPTION OF THE DRAWING.
Figure 1, an elevation, partly in section, of a press combined according to
my Invention. Figure 2 is a plan of Figure 1, with the upper parts of the
press removed.
a, a, is a box or frame, in which the parts for producing
pressure work. 6 is a screw having suitable bearings at each end of the
box a, a, and there is a cog wheel affixed on the screw b, by which rotatory
motion may be communicated to the screw b, from any suitable power; the
screw 6 passes through the wedge c, in which a female screw is formed; hence
when the screw b is turned, the wedge may be caused to move to or fro,
according to the direction in which the screw is turned. e, e, is a frame
of friction rollers, which is under the wedge c, by which means the friction of
the wedge in its movement will be reduced. f.f, is another frame of rollers,
which is placed between the wedge c and the wedge d, which constitute the
follower of the press, the rollers f reducing the friction which would otherwise
be considerable, if the wedges c and d came together. g is a roller at the
front of the wedge d, to reduce the friction of the wedge d in its rising and
falling when the press is in use.
Having thus explained the nature of the parts of the press as constructed
according to my Invention, I will describe the modes of using the same.
Supposing any matters requiring very considerable pressure were to be placed
on the horizontal or upper surface of the wedge or follower d, and the screw.b
turned in such a direction as to cause the wedge c to approach the front of the
box, it would by its inclined or upper surface force up the follower d, and
press whatever was on the upper surface of c between that surface and the top
of the press, as will readily be traced in the Drawing; and when sufficient
pressure has been attained to the matters submitted thereto, the pressure may
be relieved by reversing the action of the screw, which will cause the wedge o
to retire, and thereby lower the follower, together with the matters which
have been submitted to the action of the press.
And I would only further remark, that I lay no claim to the screw or wedgos
separately, nor to any other of the parts, and their arrangement and con-

page_text: truction may be varied to suit different purposes. But what I claim as my
nvention is the mode of combining the screw and wedges herein-described
or constructing presses.
In witness whereof, I, the said Robert Garton, have hereunto set my hand
and seal, this Eighteenth day of July, in the Second year of the
reign of our Sovereign Lady Victoria, by the grace of God of the
United Kingdom of Great Britain and Ireland Queen, Defender of
the Faith, and in the year of our Lord One thousand eight hundred
and thirtight