Improvements in or connected with Packings for Steam and other Fluid Pressure Engines and Machines.
Year: 1892

page_text: Date of Application, 29th Jan., 1892
Complete Specification Left, 29th Oct., 1892-Accepted, 3rd Dec., 1892
PROVISIONAL SPECIFICATION.
Improvements in or connected with Packings for Steam and other
Fluid Pressure Engines and Machines.
I, LEON VALLET, of 49, Everton Road, Liverpool, in the County of Lancaster,
Manufacturer of Bottle Stoppers, do hereby declare the nature of this invention
to be as follows :-
My invention has reference more particularly to packings for rendering tight,
against the escape of steam, air, gas, water, or other fluid, the working joints of.
or about rods, plungers, or other cylindrical equivalent parts of engines and
machines.
According to this invention, 1 combine with soft or pliable packing in a stuffing
box, one or more metal washers, soft metal in preference, such as block tin, or
other suitable material, by which equivalent results are obtainable, and capable of
resisting high pressure at which steam engines and other fluid pressure engines are
now worked.
In carrying out the invention, one or more washers are placed at the bottom
of the stuffing-box, and one or more are placed at the top, and between these two
a suitable soft or yielding packing such as asbestos, canvas, cotton, compounds, or
material giving the same results, is provided. Upon the packing so arranged, the
glands may be pressed into the stuffing-box in the usual way.
The metal washers are of a size to fit well on the piston rod, or other rod or
plunger, and after the packing has been in use a little time, they adjust themselves
in such a manner as to render the joint perfectly tight, and to prevent the soft or
equivalent packing being thrust or blown out. By this invention also, only a small
pressure has to be exerted by the gland upon the packing, and thus a minimum
friction upon the moving part is caused.
The metallic washers are, in most cases, cut or split at one part to enable
them to be more easily put in position over a rod or plunger, but they should be
arranged in the stuffing box so that the split parts are not opposite each other.
The metallic washers may be cut from sheet metal or equivalent material, or cast
in the desired form. In some forms the washers may be grooved or corrugated.
annularly or radially, or serrated; and holes or apertures may be provided therein
in some cases.
Dated this 28th dar of Jonnor 1802
CHEESBROUGH & ROYSTON, Fels. Chart. Inst. P.A.,:
15, Water Street, Liverpool, Applicant's Patent Agents.
COMPLETE SPECIFICATION.
Improvements in or connected with Packings for Steam and other
Fluid Pressure Engines and Machines.
I, LEON VALLET, of 49, Everton Road, Liverpool, in the County of Lancaster,
Manufacturer of Bottle Stoppers, 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 has reference more particularly to packings for rendering tight,
against the escape of steam, air, gas, water, or other fluid, the working joints of
or about rods, plungers, or other cylindrical equivalent parts of engines and
machines.
1.)

page_text: According to this invention, I combine with soft or pliable packing in a stuffing
box, one or more metal washers, soft metal in preference, such as block tin, copper,
or other suitable material by which equivalent results are obtainable, and capable of
resisting the high pressure at which steam engines and other fluid pressure engines
are now worked.
In carrying out the invention, one or more washers are placed at the bottom of
the stuffing-box, and one or more are placed at the top, and between these washers.
a suitable soft or yielding packing such as asbestos, canvas, cotton, compounds, or
material giving the same results, is provided. In a modification, additional washers
are disposed in the soft packing intermediately between those before mentioned.
Upon the packing so arranged, the glands may be pressed into the stuffing-box in
the usual way.
The metal washers are of a size to fit well on the piston rod or other rod or
plunger, and after the packing has been in use a little time, they adjust themselves
in such a manner as to render the joint perfectly tight, and to prevent the soft or
equivalent packing being thrust or blown out. By this invention also, only a small
pressure has to be exerted by the gland upon the packing, and thus a minimum
friction upon the moving part is caused.
The metallic washers are, in most cases, cut or split at one part to enable
them to be more easily put in position over a rod or plunger, but where this is done
they should be arranged in the stuffing-box so that the split parts are not opposite
each other.
The metallic washers may be cut from sheet metal or equivalent material, or cast
in the desired form. In some forms the washers may be grooved or corrugated
annularly or radially, or serrated; and holes or apertures may be provided therein
in some cases.
'
Having thus generally described the nature and object of my invention, I will
now proceed to describe it.with reference to the accompanying drawings which form
a part of this Specification. The drawings together with the description thereof
set forth examples of my invention as applied to piston rod packings for steam
engine cylinders.
DESCRIPTION OF THE DRAWINGS.
Figure 1 shews in sectional elevation a piston rod stuffing box and gland provided
with packing according to my invention.
Figure 2 shews a modified arrangement of the packing illustrated at Figure 1.
Figures 3, 4, 5, and 6, shew forms of the metal washers or rings such as I prefer
to use.
With reference to the drawings, a designates the rod; the stuffing box;
and the gland. d are the metal washers or rings which may be cut from sheet
metal or equivalent material, or cast in the desired form, and e is the soft or
pliable packing with which the metal washers d are combined. These washers d
are by preference of soft metal such as block tin or copper, or other suitable
metal by which equivalent results are obtainable, and capable of resisting the
high pressure at which steam engines and other fluid pressure engines are now
worked.
In carrying out the invention, the metal washers d are combined with the soft
packing e either by a placing a washer d at the bottom and top of the soft packing e,
as shewn in Figure 1, or by placing a washer d at the bottom and top of each layer
of soft packing e, as shewn at Figure 2.
The soft packing e, which may be asbestos, canvas, cotton, or like material,
affords a yielding substance against which the washers d adjust themselves when the
gland e is pressed into the stuffing box b, in the usual way.
The metal washers d are made of a size to fit on the rod a, and in the stuffing
box b, and to enable them to be easily put in position they may be split at h, and
when arranged in the stuffing box they are so placed that the split parts / do not
come opposite each other. By making the washers d grooved, or corrugated, as shewn

page_text: in the drawings, they will expand by a slight pressure of the gland, and by providing
holes or a serrated edge ia passage to the soft packing e is provided for the
lubricant.
Some of the advantages attending the use of the packing above described are,
that the metal washers d and the soft packing e adjust themselves in such a
manner as to render the joint perfectly tight; the soft packing e is not thrust
or blown out of the gland; a small pressure only need be exerted by the gland c
upon the packing; and a minimum friction upon the moving part is caused.
Having now particularly described and ascertained the nature of this inven-.
tion and in what manner the same is to be performed, 1 declare that what I
claim is :-
The packing herein described, consisting of soft metal washers d, and soft or
pliable packing, such as specified, interposed between said washers within a stuffing
box; such washers being constructed as set forth and shewn, and adapted to.
operate as described.
Dated this 28th day of October 1009
CHEESBROUGH & ROYSTON, Fels. Chart. Inst. P.A.,
15, Water Street, Liverpool, Applicant's Patent Agents.