Improvements in Metallic Packing for Steam and other Engines.
Year: 1893

page_text: Date of Application, 31st Aug.,
1893
Complete Specification Left, 30th May, 1894-Accepted, 25th Aug., 1894
PROVISIONAL SPECIFICATION.
Improvements in Metallic Packing for Steam and other Engines.
I, WILLIAM HENRY EASTWOOD, of East Holm, Church Place, Penarth, in
the County of Glamorgan, Engineer, do hereby declare the nature of this invention
to be as follows :-
My invention relates to improvements in metallic packing for steam and other
engines and relates to a modification of the packing illustrated in the drawing
accompanying the Complete Specification of a previous Letters Patent granted to
me, No. 2043, February 2nd 1892.
In carrying the present invention into effect, I provide a ring having an
outwardly projecting flange. This ring fits the rod or piston to be packed. The
bottom of the stuffing box, or equivalent surface, receives a suitable filling ring to
provide a level surface at right angles with the rod for the ring to rest upon or the
end of the ring and its flange may be turned to fit. This ring may be built up of
segments, the junctions of which are provided with tongue pieces adapted to
prevent the passage of fluid through the said junctions. It may be of metal or any
suitable metallic compound: I do not limit myself in respect of material.
A suitable quantity of flexible packing is wound round the ring, to fill up
between it and the opposite surface.
A thin band or ring of metal may be inserted between the flanged ring and the
flexible packings for the purpose of preventing threads of the latter making their
way into the joints of the segments constituting the ring.
The flexible packings are compressed by a compression ring of a larger diameter
than the ring above mentioned so as to slide over it. The compression ring is held
down upon the packings by the gland.
A duplicate ring and flexible packings may be used, the gland pressing upon the
flange of the ring and the compression piece being held between the two sets of
flexible packings.
There may be only one flanged ring and set of flexible packings, the flange of
the ring being next the gland, and the opposite end of the compression ring being
fitted or packed to the bottom of the stuffing box or the equivalent surface.
Dated this 31st day of August 1893.
PHILLIPS & LEIGH,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Metallic Packing for Steam and other Engines.
I, WILLIAM HENRY EASTWOOD of East Holm, Church Place South, Penarth,
in the County of Glamorgan, 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 :-
My invention relates to improvements in metallic packing for steam and other
engines and relates to a modification of the packing illustrated in the drawing
accompanying the Complete Specification of a previous Letters Patent granted to
me Number 2043, February 2nd 1892.
In order that the invention and means by which it is to be carried into practical
effect may be thoroughly understood, I will now describe them in detail, referring
LE

page_text: in so doing to the accompanying figure which is to be taken as part of the
Specification and read therewith.
Fig. 1. is a sectional longitudinal elevation.
A. and B. are an ordinary gland and stuffing box and C is the rod to be packed.
D. D. are two metal rings L shaped in section; they are preferably of the same
size and section and in any case their internal faces fit close to the rod C and their
backs toward the gland and neck ring.
Suitable provision is made for these rings to fit steam tight to the rod and to
each other by making them in segments, the parting planes of which are arranged
in a diagonal or zigzag direction or the partings may be provided with tongue
pieces to prevent the passage of fluids through.
E. is a ring of a larger size than the metal rings D. D. so as to slide over them.
F. F. are the well-known non-metallic fibrous type of material e.g. asbestos or
any other suitable packing, so that when the gland is screwed up it will be forced
up tightly against the ring E. and the box, and in its turn press the rings D. D.
against the rod C.
A thin band of metal may be inserted between the flanged rings D. D. and the
fibrous packing F. F. to prevent the latter getting between the segments.
G. G. are filling rings which may be used to provide a level surface at right
angles with the rod C for the rings D. D. to rest upon.
I may also only use one flanged ring D and set of flexible packing F, the flanges
of the ring being next the glaud or neck bush; the opposite end of ring E being
fitted or packed to the top or bottom of the stuffing box or its equivalent surface.
The rings D. D. may have their internal faces concave if necessary.
They may be of metal or any suitable metallic compound.
I do not confine myself to the sectional contours of the rings D. D. illustrated
but may use them of any other contour which may be suitable.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is :
1. The combination of metallic rings and ordinary packing as illustrated and
described herewith.
2. The combination of rings ✓ shaped in section, with a ring into which the
former may slide, as set forth.
Dated this Twenty-ninth day of May 1894.
WILLIAM HENRY EASTWOOD.