Improvements connected with Hydraulic Presses for Pressing Oloth, Baling Goods, and other purposes.
Year: 1891

page_text: Date of Application, 12th June, 1891
Complete Specification Left, 10th Mar., 1892-Accepted, 16th Apr., 1892
PROVISIONAL SPECIFICATION.
Improvements connected with Hydraulic Presses for Pressing Oloth,
Baling Goods, and other purposes.
I, RICHARD GEE, of New Hay Road, Lindley, near Huddersfield, in the County
of York, Engineer, do hereby declare the nature of this invention to be as
follows:-
-
My invention consists in a new or improved means and method of raising and
lowering the rams of hydraulic presses, employed for pressing cloth, for baling
goods, or other purposes.
According to the present method of operating hydraulic presses, a considerable
waste of water has taken place in consequence of the water being discharged and
allowed to escape each time it has raised the ram.
According to my invention I propose to operate the rams of such presses by
water in such a manner as to use the same water over and over again, thereby
avoiding the above-mentioned waste of water and excessive wear and tear of the
apparatus; and for this purpose I employ a rotary shaft, preferably placed near to
the press, the said shaft receiving its motion from any convenient source, and
having fixed upon it a worm, gearing with a wheel upon a short shaft, on which
latter shaft are also keyed or otherwise secured suitable cams or tappets, operating
levers connected to the upper ends of the spindles of a double valve. As the cams
rotate, they raise and lower the valve spindles for opening and closing the said
valves. These valves are connected by a short pipe or pipes to a small and large
The inlet valve is
ram respectively, situated underneath the pressing table.
connected by a pipe to an inverted pump, the water-tight shell which surrounds
said pump having a dead-weight attached thereto, and being capable of rising and
This inverted pump is
falling by the admission and withdrawal of the water.
supplied with water from a cistern by means of an ordinary pump, and as the
hollow shell of the inverted pump becomes full of water, it gradually rises to the
required height. As the cams before referred to rotate, one of them gradually
raises the valve spindle and opens the inlet valve, the dead weight on the inverted
pump immediately forcing the water through the pipe and valve to the ram box
underneath the table, the pressure of water in which lifts the ram as far as
necessary, where, in consequence of the shape of the cam, it remains for a few
moments, and is then permitted to lower by the descent of the valve spindle, which
closes the inlet valve, whilst the water escapes at the outlet valve and passes by
pipes to the cistern again.
The jacket enclosing the piston may be surrounded with metal rings, the number
of which will vary according to weight required to impart the necessary squeeze to
the fabric, whilst metal rings may also be placed over the dead weight.
By the employment of a dead weight for raising the pressing table, I am enabled
to dispense with the steam engine or other motive power at present employed for
that purpose, as the shaft is the only part requiring to be driven, which may be
done from any convenient source; the connections are simplified, wear and tear
reduced, and the apparatus is automatic and little liable to derangement; whilst by
preventing waste of water, the cost of working is greatly reduced.
Dated this 11th day of June 1891.
TASKER & CROSSLEY,
Halifax, Agents.

page_text: COMPLETE SPECIFICATION..
Improvements connected with Hydraulic Presses for Pressing Cloth,
Baling Goods, and other purposes.
I, RICHARD GEE of Newhay Road, Oakes, near Huddersfield, Yorkshire Engine
Tenter, do hereby declare the nature of this invention and in what manner the
same is to be performed, to be particularly described and ascertained in and by the
following statement :-
My invention consists in a new or improved means and method of raising and
lowering the rams of steam or hydraulic presses, employed for pressing cloth, for
baling goods, or other purposes.
According to the present method of operating hydraulic presses, a considerable
waste of water has taken place in consequence of the water being discharged and
allowed to escape each time it has raised the ram.
According to my invention I propose to operate the rams of such presses by
water, in such a manner as to use the same water over and over again, thereby
avoiding the waste of water and excessive wear and tear of the apparatus.
In order that my invention may be better understood, I will now make reference
to the accompanying sheet of drawings, wherein Fig. 1 is elevation (partly in
section) of a cloth pressing machine having my improvements applied thereto;
whilst Figs. 2 and 3 are detailed sections of valves specially constructed and
arranged for the successful working of the press. A represents the framework of
a cloth pressing machine, B the rising and falling table operated by the small
ram C working in a chamber D, formed in the large ram E, such said table being
also operated by the large ram E in the ordinary manner. F is the main driving
shaft, on which is mounted a bevel wheel for driving another bevel wheel G fixed
to the cross shaft H, on which is also mounted a worm I, for giving rotary motion to
the worm wheel J, and to the two small cams a and b ; and also to a larger cam or
tappet K, all keyed or otherwise fastened to shaft L. Working within a cylinder
or tube M is a pump piston N, the upper part of which, receives a stud carrying
a deadweight O for weighting the piston, and in order to increase the weight or
regulate it, I employ in addition, a number of moveable weights P. Water is
supplied to the cylinder N by a double acting pump R, which draws it through
the pipe S from a cistern placed in auy suitable position, forcing the said water
through pipe S into the cylinder N, whereby the piston M is raised to the required
height, which piston, when released as hereinafter explained, allows the dead-
weights and P to descend and force the water therefrom under considerable
pressure back through the pipes S and T, and through inlet valves c and d,
(see Fig. 3) and pipes and n, into_chamber D, and ram box E'; the water being
first admitted into the chamber D so as to give the first lift to the table, and
immediately afterwards into the large ram box E' to impart the requisite pressure
or squeeze to the cloth or bale resting upon the table B.
The admittance of the water first to the small ram chamber D and afterwards
to the large ram box E', is determined and controlled by the double valves c
and d, which are opened and closed at the proper time by cams a, b, acting on
levers a and b¹. The outlet valve e, (see Figs. 1 and 2) for permitting the water
to escape from the ram boxes and flow back into the cistern, is opened by the cam
or tappet K acting on the bowlf on the end of the horizontal spinale g and closed
by the action of the spiral spring in the sleeve or tube i, all as afterwards fully
explained.
The cams a and b are of the same shape, but arranged to act, oue a little later
than the other, the cam a first raising the lever a' (which is pivotted at a* in the
bracket a³, as likewise is the lever which raises the adjustable screw k clear of
the head of the spindle c¹ of the valve c, which is thereupon forced open by the
pressure of water in the inlet pipe T, said water passing through the valve from

page_text: which it flows through pipe into the small ram chamber D, the pressure of the
water on the said ram, forcing up the table or giving what is known as the first lift,
which causes the fabric to be nipped between the table and roof of the press in the
ordinary manner. Immediately this nip has taken place the second cam 6 raises
the lever band releases the spindle d' of valve d, which is thereupon forced
open by the pressure of water in the passage or thoroughfare m, said water being
forced through the valve and down pipe N (as indicated by arrows by the descent.
of the dead weight) into the large ram box E', whereby the ram E is raised to its
highest point and the pressure of the water maintained long enough to give the
requisite squeeze or pressure to the cloth or bale on the table B. When this has.
been accomplished, the cam a, which has moved around part of a revolution,.
releases the lever a which is drawn down by spiral spring on the rod » which
closes the valve c whilst the outlet valve e having in the meantime been opened
by cam or tappet K the water from the large ram box E' and chamber D is.
forced by the descent of the press table through outlet valve e and pipe el
into the cistern. The valve d, which has remained open a little longer than the
valve in order that the water from the small ram chamber D may be discharged,.
is now closed by the action of the cam releasing lever which latter is.
drawn down by spiral spring p as in the case of lever a whilst the discharge
water e is held open by the swell on the tappet K until the water in the ram
box E has been discharged when it is closed by the spiral spring, the said
valves remaining closed until the deadweight has been again raised by water
drawn from the cistern and forced into the shell M by pump R, when the valves c
and d are opened in the same manner as before to allow the raised deadweight
to force the water in the shell M into the ram boxes and raise the table of
C
the press.
t is a safety valve employed to prevent liability of damage by excessive pressure
of water.
In combination with the outlet valve e is a small valve e which is opened by
the spindle g in order to break the pressure of water just before the valve e is
opened.
с
The casing of the inlet valves c and d is bolted to the casing of the ontlet valve e
at right angles to said valve.
By the employment of a dead-weight for raising the pressing table and by
the operation of the inlet valves and outlet valve in the manner and at the times
herein described in combination with such dead-weight I am enabled to dispense
with the steam engine or other motive power at present employed for that purpose,.
and obtain better results in a more economical way and with fewer connections,
whereby wear and tear is reduced. The apparatus is automatic, uniform in action,
and little liable to derangement, whilst the use of the same water over and over
again for raising the table and pressing the cloth obviates the waste of water usual
in hydraulic presses.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
The raising of the pressing table by means of water operated by deadweights or
weights, in combination with the arrangement of valves in manner substantially as.
herein shewn and described.
TASKER & CROSSLEY,
Halifax, Agents.