IMPROVEMENTS IN THE CONSTRUCTION OF PRESSES
Year: 1837

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
BRINDLEY, of Birmingham, in the County of Warwick, Patent Paper Tray
Manufacturer, 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-third day of December, in the first year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me,
the said William Brindley, Her especial licence, full power, sole privilege and
authority, that I, the said William Brindley, my exors, admors, and assigns,
or such others as I, the said William Brindley, my exors, adiñors, or assigns,
should at any time agree with, and no others, from time to time and at all
times during the torm 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 THE CONSTRUCTION
OF PRESSES;" in which said Letters Patent is contained a proviso that I,
the said William Brindley, 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.

page_text: NOW KNOW YE, that in compliance with the said proviso, I, the said
William Brindley, do hereby declare the nature of my Invention, and the
manner in which the same is to be performed, are fully described and
ascertained 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 that description of presses called screw presses, and
in order to give the best information in my power for carrying out my Inven-
tion, I will proceed to describe the Drawing hereunto annexed.
DESCRIPTION OF THE DRAWING.
In
Figure 1 is an elevation of a screw press combined according to my
Invention. Figure 2 is a section taken just below the top of the press.
each of these Figures the same letters indicate similar parts. a, a, is the
bed of the press, and b is the follower of the press. The follower 6 moves up
and down, and is guided by the pillars c, c, fixed in the bed of the press and
to the top of the press, as is clearly shewn in the Drawing. d, d, are four screws
which pass through fixed nuts or boxes in the top of the press. e is a circular
bar or axis passing freely through the top of the press. The screws and the
circular bar or axis are connected to the follower of the press by their having
collars ff, and by means of straps 9 screwed on to the upper part of the
follower, as is shewn in the Drawing. On each of the screws d are affixed
toothed wheels h, h, and the wheels hall take into and are driven by the
toothed wheel j, which turns freely on the axis or car e, or it may be affixed
to that axis, and the axis move round with it. The dotted lines in Figure 1
shew that the ends of the screw d and the axis e enter into the follower, there
being holes carefully bored in order that the ends of the screws may obtain
good and even bearings. i is an axis which turns in suitable bearings at i, i,
affixed on the upper part of the follower, as is clearly shewn in the Drawing.
On the axis is affixed the driving wheel k, which has handles 1, 1,
by which the pressman may turn the axis i round, and by the level toothed
pinion affixed on the axis i motion will be communicated to the wheel j, and
by that wheel motion will be communicated to the four screws h, h, by which
the follower of the press may be moved up or down. According to this
arrangement there will be obtained a very powerful press, and the pressure
will be evenly diffused over the follower of the press; and by such mode of
construction presses of much larger dimensions may be made than when only
one screw is employed in the centre of the follower, as is the most usual
construction of screw presses now used. I would remark that, although I have

page_text: shewn four screws d, d, as being used, it is evident that three might be
employed with advantage, and have the movement to the follower produced
by one wheel driving three wheels h; and further, where the press
is very
large, even more than four wheels h, h, and screws d, d, might be used, and
worked by one common wheel j.
Having thus explained the nature of my Invention, I would further remark
that I lay no claim to any of the parts separately of which the press is
combined, and variations may be made without departing from my Invention.
And I would have it understood that what I claim as my improvements in
the construction of presses, is the mode herein described of employing and
combining the screws d, d, the toothed wheels h, h, and the wheel j, in order
to produce powerful presses.
In witness whereof, I, the said William Brindley, have hereunto set my
hand and seal, this Twenty-third day of June, in the year of our Lord