AN IMPROVED HYDRAULIC PRESS FOR BALING COTTON
Year: 1884

page_text: PROVISIONAL SPECIFICATION.
I, ALEXANDER MELVILLE CLARK, of the firm of A. M. and Wm. Clark,
of 53, Chancery Lane, in the County of Middlesex, Fellow of the Institute of
of the said Invention for
Patent Agents, do hereby declare the nature
"AN IMPROVED HYDRAULIC PRESS FOR BALING COTTON a communication to me
from abroad by Christian Baumgarten of Schulenburg, Fayette County, State of
Texas, United States of America, Gentleman to be as follows:-
"
This invention consists of an improved construction of hydraulic baling press.
In constructing the hydraulic apparatus of the press according to this invention I
take a simple tube of suitable size and length and cut screw threads on each end,
and close it hermetically at the lower end with a cap screwed thereon; on the upper
end I screw a strong collar having an annular recess, in the upper side around the
hole into which the upper end of the tube screws, said colar also having suitable
screw tapped holes for reception of stud bolts by which to screw down the gland
on a ring of elastic packing which I place in said recess, said ring being a plain flat
ring.
In this tube which forms the hydraulic cylinder I fit another tube for a ram
which is closed at the ends by plugs welded on or otherwise suitably attached and
on the head of the ram I seat a cap or bolster having a socket to connect with the
ram by simply resting on it, and to this bolster I attach the follower by bolts.
The packing when worn out may be replaced by simply removing the follower
and bolster, which allows the gland to be removed and also the packing ring and
permits the new packing ring to be put on.
I also propose to arrange a strong coiled steel spring in the bottom of the cylinder
under the ram to check the latter and prevent damage in case it should accidentally
fall too rapidly and to prevent the ram from falling below and closing the inlet
pipe.
The rest of the press consisting of the case, head and the holding mechanism for
the case and head may be of any approved form of construction.

page_text: The cylinder may be placed in a pit with the collar or flange at the surface of the
ground so that the follower and case may be arranged low down on the ground floor
when it may be desired to do so.
At the lower end of the hydraulic cylinder, I connect the pipe by which the water
or other fluid is to be forced in to raise the ram, the said pipe will have a check
valve located in any convenient part and will connect with a pump for forcing in
the liquid, and the pipe will be contrived to allow the check valve to be raised to
allow the water to flow back through the pump or through any passage to be
opened in said pipe for the escape of the fluid when the follower is to be lowered
again.

page_text: "
I, ALEXANDER MELVILLE CLARK, of the firm of A. M. and Wm. Clark,
of 53, Chancery Lane, in the County of Middlesex, Fellow of the Institute of
Patent Agents, do hereby declare the nature of the said Invention for
"AN IMPROVED HYDRAULIC PRESS FOR BALING COTTON" (a communication to me
from abroad by Christian Baumgarten of Schulenburg, Fayette County, State of
Texas, United States of America) and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following
statement:-
This Invention relates to an improved construction of hydraulic baling press and
is designed to provide a simpler and more durable and reliable press for this kind
than any now in use as bereinafter fully described and claimed.
Reference is to be had to the accompanying drawings forming a part of this
Specification, in which similar letters of reference indicate corresponding parts in
both the figures.
Figure 1 is a sectional elevation of the hydraulic apparatus of the said press
constructed according to this invention and Figure 2 is a side elevation of the press
with an ordinary force pump 10 and check valves 9 connected therewith, the pipe
being broken away in places.
I take a simple tube a of suitable size and length and cut screw threads on each
end, and close it hermetically at the lower end with a cap b screwed thereon; on
the upper end I screw a strong collar c having an annular recess d in the upper side
around the hole into which the upper end of the tube screws, said collar also having
suitable screw tapped holes for the reception of stud bolts e by which to screw down
the gland f, on a ring of elastic packing g, which I place in said recess, said ring
being a plain flat ring.
In this tube a, I fit another tube h, for a ram said tube h being closed at the ends
by plugs i welded on or otherwise suitably attached and on the head, I seat a metal
cap or bolster j having a socket to connect with the ram by simply resting on it,
and to this bolster I attach the follower k, by bolts l.
The packing g when worn out may be replaced by simply removing the follower k
and cup j, which allows the gland f, to be removed and also the packing ring and
permits the new packing ring to be put on.
I also propose to arrange a strong coiled steel spring n, in the bottom of tube a
under the ram h to check the latter and prevent damage in case it should accidentally
fall too rapidly and to prevent the ram from falling below and closing pipe m.
The rest of the press consisting of the case, head and the holding mechanism for
the case and head may be of any approved form of construction.
The cylinder a may be placed in a pit with the collar or flange c at the surface
of the ground so that the follower and case may be arranged low down on the
ground floor when it may be desired to do so.
At the lower end of the outer tube a I connect the pipe m by which the water
or other fluid is to be forced in to raise the ram; the said pipe will have a check
valve located in any convenient part and will connect with a pump for forcing in
the liquid, and the pipe will be contrived to allow the check valve to be raised to
allow the water to flow back through the pump or through any passage to be
opened in said pipe for the escape of the fluid when the follower is to be lowered
again,
I am aware that the cylinder of an hydraulic press has been formed in one piece,
with a packing seat around its inner top edge, and that a ring was bolted on top of

page_text: the cylinder and was provided with a downward projecting tongue to fit within the
packing seat; a solid piston fitted within the cylinder and was recessed on its top
to receive a boss on the under side of the follower; Also that springs have been
placed beneath an elevator to lessen the shock in case the elevator should drop
suddenly, and I do not desire to claim broadly, any such construction. .
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed I declare that what
I claim is
The combination of the cylinder, screw threaded at its ends, a screw cap b on its
lower end, recessed collar c d on its upper end, packing ring f and suitable packing g
with the hollow ram closed at both ends by plugs and rounded at its upper end
and the recessed follower cap substantially as set forth.