Improvements in Presses for Baling or Compressing Cotton and other Materials or Substances.
Year: 1890

page_text: Date of Application, 30th Jan., 1890
Complete Specification Left, 24th June, 1890-Accepted, 26th July, 1890
PROVISIONAL SPECIFICATION.
Improvements in Presses for Baling or Compressing Cotton and
other Materials or Substances.
1, WILLIAM MACLEAN WILSON of the firm of Nasmyth Wilson and Company
Limited, of Patricroft in the County of Lancastor, Engineer do bereby declare the
nature of this Invention to be as follows:-
My invention relates to improvements in presses for baling or compressing cotton
and other materials or substances and the chief object of my improvements is to
reduce the length of the press and to facilitate and expedite the pressing operation.
In carrying my improvements into effect I employ say three hydraulic cylinders
placed side by side the central cylinder being preferably smaller in diameter than the
other two. The rams of these three cylinders are hollow and form cylinders for three
rams fitted within them. The inner rams of all three cylinders are connected to
what I call the first follower while the three outer rams are connected to a second
follower.
In operation when the box has been filled with cotton or other material the pressure
is turned into the inner cylinder or hollow ram of the centre cylinder through an
opening at the bottom and the small ram immediately rises carrying with it the two
inner rams of the side cylinders which rams act as guides or side props. As soon as
the inner rains or side props rise clear of the second follower a blocking gear instantly
comes into operation and covers the holes in the second follower through which the
side props have risen. The pressure is then turned into the outer portion of the
centre cylinder thereby causing the second follower to rise with the first follower
while the two side cylinders are simply filled with water by gravitation until the
resistance becomes too great in the centre cylinder; then the full pressure is turned
on to the two outer side cylinders & the final pressure is given by the united power of
all three rams.
After the bale has been pressed, the followers are lowered the blocking gear being
removed automatically as the second follower descends, the small or inner ram of the
centre cylinder only remaining to be emptied to allow the first follower to reach its
lowest position.
Although I have described an arrangement in which three hydraulic cylinders are
employed I wish it to be clearly understood that I might employ one compound
cylinder only-or any convenient number of cylinders more than one.
In case the
press had only one compound cylinder I should employ two or more guides or side
props and raise the first follower and guides by means of the inner ram of the com-
pound cylinder until the ends of the guides clear the first follower as described in the
three cylinder arrangement when a blocking gear would come into operation to cover
the holes for the guides in the first follower and the final pressure would be given by
means of the outer ram of the cylinder.
001
COMPLETE SPECIFICATION.
Improvements in Presses for Baling or Compressing Cotton and
other Materials or Substances.
I, WILLIAM MAOLEAN WILSON, of the firm of Nasmyth Wilson and Company
Limited, of Patricroft, in the County of Lancaster, Engineer, 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 relates to improvements in presses for baling or compressing
[Price 81.1

page_text: cotton and other materials or substances and the chief object of my improvements
is to reduce the length of the press and to facilitate and expedite the pressing
operation.
In carrying my improvements into effect I employ say three hydraulic cylinders
placed side by side the central cylinder being preferably smaller in diameter than the
other two.
The rams of these three cylinders are hollow and form cylinders for
three rams fitted within them. The inner rams of all three cylinders are connected
to what I call the first follower while the three outer rams are connected to a second
follower.
And in order that my invention may be fully understood and readily carried into
effect I will describe the accompanying four Sheets of Drawings reference being had
to the figures and letters marked thereon.
Fig. 1 is a side elevation of a press, for baling or compressing cotton and other
materials or substances, made according to my Invention.
Fig. 2 is a view partly in section of the lower part of Fig. 1 on an enlarged
scale.
Fig. 3 is a view in section taken on the line A B Fig. 2.
Figs. 4, 5 and 6 are similar views respectively to Figs. 1, 2 and 3 of a baling press
of a slightly modified construction also made according to my invention.
Similar letters refer to similar parts throughout the several views.
In Figs. 1, 2 and 3 my invention is shown applied to a press with three compound
hydraulic cylinders placed side by side. In this arrangement, a designates the lower
fixed portion of the press frame, bb the stays or bolts for connecting the lower
framo a to the top frame c of the press, d is the central hydraulic cylinder and its
ram, ff are the two side cylinders and 9 g the rams; the rams e, g, g, of these
three cylinders are all hollow and form cylinders for three rams h, i, i, respectively
fitted within them. The main central cylinder d is preferably as shown namely
smaller in diameter than the two side cylinders ff but it may be the same size
or larger.
All the inner rams h, i, i, are connected to the first follower ; while the three hollow
rams e, g, g, are connected to a second follower k; it will be seen that Fig. 1
represents the followers j and k in their highest position while in Fig. 2 they are in
their lowest position ready for the cotton or other material to be placed in the box,
prior to being compressed.
ram.
In operation when the box has been filled with cotton or other material to be baled
a valve in the pipe which leads into the inner cylinder or hollow ram e of the centre
cylinder d is opened and water under pressure is admitted which causes the small or
inner ram to rise carrying with it the two rams ii of the side cylinders these rams
being at this time inoperative and acting only as guides or side props for the central
As soon, however, as the inner rams or side props i i rise clear of the second
follower ka blocking gear instantly comes into operation and covers the holes in the
second follower k through which the rams or side props i i have risen. I propose to
employ an automatic blocking gear, but the rams may be blocked by hand if
preferred. The pressure is then turned into the outer portion of the central cylinder d
thereby causing the rain e to raise the second follower k with the first follower j while
the two side cylinders ff are simply filled with water by gravitation until the
resistance becomes too great in the central cylinder d; then the full pressure is turned
on to the two outer side cylinders ff and the final pressure is given to the bale
by the united power of all the rams h, e, g, g.
After the bale has been pressed and secured, the followers are lowered, the blocking
gear being removed as the second follower k descends the small or inner ram h of
the central cylinder only remaining to he emptied to allow the first follower j,
with the rams or side props ii, to reach its initial or lowest position as shown in
Fig. 2.
Although I have described an arrangement in which three compound hydraulic
cylinders are employed I wish it to be clearly understood that I might employ one
compound cylinder only-or any number of cylinders more than one.

page_text: In Figs. 4, 5 and 6 a press is shown with one compound cylinder d with two guides
or side props. The upper follower j and the guides are raised to give the
preliminary pressure to the bale by means of the inner ram h of the compound
cylinder d until the ends of the guides clear the lower follower k as described in the
three cylinder arrangement when a blocking gear would come into operation to cover
the holes for the guides in the lower follower k and the final pressure is then given
by means of the united rams h and e of the compound cylinder.
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 :-
1. In a press for baling or compressing materials the use and application of a
compound hydraulic cylinder, or cylinders with rams arranged and operating sub-
stantially in the manner and for the purposes herein set forth.
2. The combination with the rams of a compound hydraulic cylinder or cylinders,
of the followers j and k substantially as and for the purposes described and as illus-
trated by the Drawings annexed.
T: 09-1 1
T
1000
H. B. BARLOW,
17, St. Ann's Square, Manchester, Agent for Applicant.