Improvements in or connected with the Packing of Hydraulic Rams, Piston Rods, and the like.
Year: 1894

page_text: Date of Application, 30th Oct., 1894
Complete Specification Left, 29 h July, 1895-Accepted, 31st Aug.,
1895
PROVISIONAL SPECIFICATION.
Improvements in or connected with the Packing of Hydraulic
Rams, Piston Rods, and the like.
I, DAVID WALTON of North Passage, Lowerhead Row, Leeds, in the County-
of York, Hydraulic Packing Maker, do hereby declare the nature of this invention
to be as follows:-
This invention has particular reference to packings employed in connection;
with hydraulic rams, but it is also applicable to packings for piston rods and
the like.
In hydraulic machinery, by constant working of the ram against its cylinder, it
is found that such parts gradually wear smaller, when a space is formed between
the said working surfaces, and by the continued working of the ram, the leather
instead of retaining its proper position begins to work up in the space formed
between the ram and cylinder, which soon chokes the parts and throws the ram
cut of action; consequently necessitating a new ram in order to make the machine.
workable.
The object of my invention is to provide apparatus whereby the leather is
retained in its proper position within the cylinder when the parts are worn down,
thus making a packed joint and extending the life of the machine considerably.
According to my invention 1 employ a metal ring or rings at one or both ends
of the ram leather, which ring or rings may be of any suitable section, being split
transversely and of a springy nature, so as to always keep in close contact with the
ram. The ring or rings keep the leather in its proper position and effectually
prevent such leather getting into the space between the ram and the cylinder, at
the same time a perfect joint is efficiently preserved.
The above described arrangement of ring or rings may also be applied to piston
rod and other ordinary stuffing box packings, when they have the effect of retaining
the space
the packing in position and of preventing any of the fibres passing up
between the rod and cylinder, at the same time making a perfectly tight joint and
preventing the escape of steam or "blowing" at the glands.
Dated this 30th due of October 1894.
J
BREWER & SON,
London and Leeds, Agents for Applicant.
Improvements in or connected with the Packing of Hydraunc
Rams, Piston Rods, and the like.
I, DAVID WALTON, of North Passage, Lowerhead Row, Leeds in the County.
of York, Hydraulic Packing Maker, 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 :-
This invention has particular reference to packings employed in connection

page_text: with hydraulic rams, but it is also applicable to packings for piston rods and
the like.
In the constant working of hydraulic rams, the surfaces of the ram and the
interior of the cylinder are gradually worn away, until a space is formed between
them. When this space has been worn away the leather begins to work up
between the ram and the cylinder, which soon chokes the parts and throws the ram
out of action; thus necessitating a new ram in order to make the machine
workable.
The object of my invention is to provide apparatus whereby when the parts are
worn down, the leather is retained in its proper position, thus preserving a tight
joint and considerably extending the life of the ram.
In order that my invention may be clearly understood, I will proceed to describe
same with reference to the accompanying drawings, in which similar letters refer
to like parts in all the figures.
Figures 1 and 2, are respectively plan and cross section of a ring constructed
according to my invention and applicable to "cup leathers." Figures 3 and 4,
show similar views of another ring constructed for use with "ram and hat
leathers."
Figure 5 shows a perspective view, of a section of a ram leather with the ring
applied thereto.
Figures 6, 7, and 8, show respectively, ram, cup, and hat leathers, applied in
cylinders and rams with the rings in position for the purpose of keeping the
leathers from working between the rams and the cylinders.
According to my invention I employ a metal ring A, which is formed with a
curved surface so as to fit the bend of the leather to which it is to be applied. As
will be seen by reference to Figures 3, 4, 5, 6, and 8, the curve of the ring A, is
on the outside, which enables it to fit against the rounded portions of the ram
leathers B, and hat leathers C; and as shown in Figures 1, 2, and 7, the curve of
the ring A, is situated on the inside which makes it suitable to suit the curve of a
cup leather D. E is the ram which works in the cylinder F.
In fitting ram and hat leathers as seen at Figures 6 and 8, the leathers B and C
are first placed in position, and the rings A are then applied. The rings A are
made to fit the ram at its smallest part and they are thus continually tight on the
ram, being kept close by the spring of the metal. In applying the ring A to cup
leathers as seen at Figure 7, the ring is made to fit the interior of the cylinder F,
against which the spring of the said ring A keeps it in continual contact. It will
thus be seen that the spring of the ring A keeps it in the required shape and
enables it to take up a certain amount of wear without material alteration, and
though a considerable wear may take place between the ram E and the cylinder F,
the leathers are prevented from working up between the said rams E and
cylinders F, thus saving considerably in the wear of leathers and in other working
parts.
Although the ring A has been described as being applied singly at one end of a
leather, it may if desired be applied to both ends where it is required to do so.
The above described arrangement of ring or rings may also be applied to piston
rod and other ordinary stuffing box packings, when they have the effect of retaining
the packing in position and of preventing any of the fibres passing up the space
between the rod and the cylinder, at the same time making a tight joint and
preventing the escape of steam.
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. The ring A, divided transversely as shown at Figures 1 and 3 of the
accompanying drawings, substantially as and for the purposes set forth.
2. The ring A, having a curved exterior surface to suit the form of ram and hat
1athers, substantially as and for the purposes set forth.

page_text: 3. The ring A, having a curved interior surface to suit the form of
leathers, substantially as and for the purposes set forth.
cup
and like
4. The employment of a transversely divided ring for the purpose of preventing
packing working up between the ram and the cylinder, substantially as set forth.
Dated this 29th day of July 1895.
BREWER & SON,
London and Leeds, Agents for the Applicant.