Improvements in Metallic Packing for Piston-rods and like purposes.
Year: 1890

page_text: Date of Application, 17th Jan., 1890
Complete Specification Left, 17th Oct., 1890-Accepted, 22nd Nov., 1890
PROVISIONAL SPECIFICATION.
Improvements in Metallic Packing for Piston-rods and like
purposes.
I, JOHN EDWARD LEWIS OGDEN, Engineer of 85 Edinburgh Street, Goole Yorkshire
do hereby declare the nature of this invention to be as follows :-
My invention has for its object to provide a durable system of metallic packing for
piston rods, pump rods and for other like purposes, whereby the economy and efficiency
of working is increased, and the friction minimized.
In carrying my invention into effect I construct a stuffing box for use with my
improved packing in the usual ordinary manner; and I do not alter any existing
stuffing box and gland, to which it is desired to apply my improved packing. I place
about and around the piston rod two metallic conical rings formed out of two or more
segments although I prefer to work with the rings formed each of three segments.
These conical segment rings I place with their wide portions touching each other so
that the cone tapers off from the centre in each direction. To give a better bearing
surface I sometimes provide these cones with a flange at their wide ends. Each
segment in one ring I cause to stand over the segments in the other ring so that their
joints shall not be in a line; and I ensure this by fitting a pin or a peg on to one or
all of the segments in one ring, to fit into recesses formed in the segments of the other
ring. The butts or edges of each segment I taper off in an outward direction so that
although only a narrow line or opening is formed when the segments join to complete
the circle, yet a broader opening exists upon the outer surface of the rings.
I place my two segment rings around the piston or other rod; and within the
stuffing box, and around the outside of the conical surfaces of each ring I place soft
packing such as asbestos, hemp or other ordinary material employed for the purpose.
For convenience in packing I sometimes wind a piece of wire around the segment
rings within a little groove or recess cut in the segments to receive the wire.
It will thus be seen that the metallic surface of my improved rings is upon the
piston or other rod while the packing is outside the ring. The packing is forced down
the cone by means of the gland screws and thus compresses the rings on to the rod in
a steady and uniform manner, and at the same time presses into the beviled butt
edges completely closing the spaces between the segments and effectually preventing
the escape of the steam gas or liquid which the rod may be passing through.
I do not limit myself to any particular kind of metal or material from which to
construct my segment rings, neither do I employ any special or peculiar form of
packing material to work with my improved rings.
CLERK & MARKS,
13, Temple Street, Birmingham, Agents for Applicant.
COMPLETE SPECIFICATION.
Improvements in Metallic Packing for Piston-rods and like
purposes.
JOHN EDWARD LEWIS OGDEN, Engineer, of 85 Edinburgh Street, Goole, Yorkshire
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 for its object to provide a durable system of metallic packing for
piston rods, pump rods, and for other like purposes, whereby the economy and
efficiency of working is increased, and the friction minimised.

page_text: In carrying my invention into effect I construct a stuffing box for use with my
mproved packing in the usual ordinary manner; and I do not alter any existing
stuffing box and gland, to which it is desired to apply my improved packing.
place about and around the piston rod two metallic conical rings formed out of
two or more segments although I prefer to work with the rings formed each
of four segments. These conical segment rings I place with their wide portions
touching each other so that the cone tapers off from the centre in each direction.
To give a better bearing surface I sometimes provide these cones with a flange at
their wide ends. Each segment in one ring I cause to stand over the segments
in the other ring so that their joints shall not be in a line; and I ensure this by
fitting a pin or a peg on to one or all of the segments in one ring, to fit into
recesses formed in the segments of the other ring. The butts or edges of each
segment I taper off in an outward direction so that although only a
narrow line
or opening is formed when the segments join to complete the circle, yet a broader
opening exists upon the outer surface of the rings.
I place my two segment rings around the piston or other rod; and within the stuffing
box, and around the outside of the conical surfaces of each ring I place soft packing
such as asbestos, hemp or other ordinary material employed for the purpose. For
convenience in packing I sometimes wind a piece of wire around the seginent rings
within a little groove or recess cut in the segments to receive the wire.
It will thus be seen that the metallic surface of my improved rings is upon the
piston or other rod while the packing is outside the ring. The packing is forced down
the cone by means of the gland screws and thus compresses the rings on to the rod in
a steady and uniform manner, and at the same time presses into the bevelled butt
edges completely closing the spaces between the segments and effectually preventing
the escape of the steam, gas, or liquid, which the rod may be passing through.
I do not limit myself to any particular kind of metal, or material, from which to
construct my segment rings, neither do I employ any special or peculiar form of
packing material to work with my improved rings.
In the accompanying sheet of explanatory drawings
Fig. 1 is a sectional elevation of a stuffing box and gland with my improved packing
rings shown in position.
Fig. 2 is a sectional plan showing the rings and the packing space.
Fig. 3 is a detail view of the packing rings shown part in section and part in
elevation.
Fig. 4 and Fig. 5 are detail views of one segment of my improved ring.
Fig. 6 is a detailed section showing the pin for keeping the cones together.
Fig. 7 is a detailed section showing the method of binding the segments with copper
or other wire, and
Fig. 8 is a sectional elevation showing the segment ring partly in section and partly
in elevation, when one conical surface only is employed instead of two opposite tapers
or cones.
In the accompanying drawings A is the piston rod, pump rod, or other rod
working through glands B, C, D, E, are my improved rings or conical collars
which I place within the packing space of the ordinary stuffing box. These conical
rings D, E I make preferably in segments or in portions for easy adaptions to
any existing rod; the dividing surfaces of the segments such as D1, D², D³, 1³, I
taper or bevel off towards the outer surface of the rings to form a space into which the
soft packing material H may freely enter to preserve a steam tight, or air or water
tight joint.
I keep the segments in correct position by means of a projecting peg or pine which
1 cause to enter into a suitable hole f, formed in the position of the cone above it.
Sometimes I place one peg on each segment, or I make projections of any required
shape upon one segment and then provide corresponding recesses upon the segment
above it.
For convenience in packing and to keep all the segments together to complete a
circle or band I bind a ring of wire G or other suitable material in the form of a cord,

page_text: around the segments, within recesses or grooves 9 formed upon my conical rings;
one or more being provided as may be desired.
Sometimes I construct my improved packing rings in the form of a single cone K
as shown in Fig. 8, and I employ the same system of construction for this as before
described for the single member D and E of my double conical rings.
I construct my rings of any suitable metal or material and employ any ordinary
kind of packing and receptacle for the same.
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 segmental conical rings for application to circular moving
rods of engines, pumps, and other like moving rods, substantially as and for the
purposes bereinbefore described and as set forth.
2. The construction of double conical rings made separately or in parts such as D, E
of the accompanying drawings, for the purposes hereinbefore described.
3. The construction of a single conical packing ring such as K of the accompanying
drawings Fig. 8, substantially as and for the purposes set forth.
Dated
Dated THIS LOGO OHY O
Dated CHIS LOGO OHLV OGONAGE
CLERK & MARKS,
13, Temple Street, Birmingham, Agents for Applicant.
CLERK & MARKS,
13, Temple Street, Birmingham, Agents for Applicant.