Improvements in Metallic Packing.
Year: 1893

page_text: Date of Application, 6th May, 1893
Complete Specification Left, 30th Jan., 1894-Accepted, 3rd Mar., 1894
PROVISIONAL SPECIFICATION.
Improvements in Metallic Packing.
I, JOHN EDWARD LEWIS OGDEN, of Marine Cottage Goole, in the County
of York, Engineer, do hereby declare the nature of this invention to be as
follows
This invention has reference to the manner in which I construct metallic packing
for application to steam engine piston rods, valve spindles, pump rods and other
The object of
like moving rods employed on steam, air, gas or hydraulic motors.
the invention being to provide a floating or yielding but tight packing surface
against which the rod may bear and which can be readily applied to the existing
or ordinary form of stuffing boxes and glands.
In carrying my invention into effect when constructing packing rings for use
upon an ordinary stuffing box and gland for a piston rod of a steam engine, I make
the rings of any suitable metal or alloy, and I make them in two portions or
separate parts. The inner portion or central ring I make to fit into a recess or
groove cut within the cuter portion or main ring, which main ring I cause to lie
within the ordinary stuffing box in a somewhat loose manner; that is to say, I
make the outer diameter of the ring slightly less than the bore of the stuffing box.
The bore of the main ring and of the inner ring I make exactly the diameter of
the piston rod so that when these two rings are cut into segments they may then
close upon or more tightly bear against the piston rod.
I cut or divide both the rings into a number of parts making thereby segmental
pieces which embrace the rod. The inner divided ring or segment carried with the
recess of the main or outer ring I secure in position by means of one or more pins
or set screws passed through from the outer segments.
The upper and lower ends or faces of the outer segments I prefer to bevel or
taper down to form a conical bed at each end for a ring or portion of ordinary
fibrous packing which I employ in combination with my metallic rings.
I modify the shape and configuration and the number of inner and outer rings
which I employ one with the other to suit any particular requirement, and I
sometimes dispense with the ordinary fibrous packing and employ only the metallic
packing within the stuffing boxes.
3
11002
MARKS & CLERK,
13, Temple Street, Birmingham, Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Metallic Packing.
I, JOHN EDWARD LEWIS OGDEN, of Marine Cottage, Goole, in the County
of York, 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 :-
This invention. has reference to the manner in which I construct metallic packing
for application to steam engine piston rods, valve spindles, pump rods and other
like moving rods employed on steam, air, gas or hydraulic motors. The object of
the invention being to provide a floating or yielding, but tight packing surface
against which the rod may bear, and which can be readily applied to the existing
or ordinary form of stuffing boxes and glands.

page_text: In the accompanying sheet of explanatory drawings :—
Figure 1 is a sectional elevation of my packing in an ordinary stuffing box.
Figure 2 is a detailed elevation of the rings and Figure 3 is a sectional plan of
the same.
Figure 4 is n sectional elevation of a modification of my packing ring
arrangement, Figures 5 and 6 being a detailed elevation and plan, respectively of
the segmental ring.
In carrying my invention into effect when constructing packing rings for use
upon an ordinary stuffing, box and gland for a piston rod of a steam engine as
shown in Figures 1, 2 and 3, I make the rings of any suitable metal or alloy, and
I make them in two portions or separate parts A and B. The inner portion or
central ring B, I make to fit into a recess or groove a, cut within the outer portion
or main ring A, which main ring I cause to lie within the ordinary stuffing box. C,
in a somewhat loose manner; that is to say, I make the outer diameter of the ring
slightly less than the bore of the stuffing box. The bore of the main ring A, and
of the inner ring B I make exactly the diameter of the piston rod D, so that when
these two rings are cut into segments they may then close upon, or more tightly
bear against the piston rod. I cut or divide both the rings into a number of
parts A, A'A' A³, B B' B' B³, making thereby segmental pieces which embrace
the rod D. The inner divided ring or segments B carried within the recess a, of
the main or outer ring, I may secure in position by means of one or more pins or
set screws, passed through from the outer segments, or I allow them to lie freely
within the inner recess.
The upper and lower ends or faces of the outer segments I prefer to curve, bevel
or taper down to form a conical or curved bed at each end for a ring or portion of
ordinary fibrous packing E E' which I employ in combination with my metallic
rings.
end
I sometimes dispense with my inner divided ring and employ only an outer or
plain segmental or divided bush or ring F, as shown in Figures 4, 5, and 6, and I
prefer in this arrangement to place the divided metallic packing F, at the lower
end of the stuffing box and to use hemp or fibrous packing E' at the upper
only as shown in Figure 4. I keep the segments F F F F in position by
means of key or tongue pieces or plates G G¹ G* G* which enter slots or key
channels, ff, f*, cut or formed within the edges of the segments.
I modify the shape and configuration and the number of inner and outer rings
which I employ one with the other to suit any particular requirement, and I some-
times dispense with the ordinary fibrous packing and employ only the metallic
packing within the stuffing boxes.
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 construction of metallic packing rings in which one inner segmental ring
is held within a recess of another outer ring substantially as hereinbefore described
and as illustrated in the accompanying drawings.
2. The construction of metallic packing rings for use, with ordinary fibrous
packing in a piston pump or like rod stuffing box, substantially as hereinbefore
described and as illustrated in the accompanying drawings..
Dated this 30th day of January 1894.
MARKS & CLERK,
13, Temple Street, Birmingham, Agents for the Applicant.
1.