Improvements in Metallic Packing for Steam and other Engines.
Year: 1892

page_text: Date of Application, 2nd Feb., 1892
Complete Specification Left, 29th Oct., 1892-Accepted, 14th Jan.. 1893
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 inven-
tion to be as follows:-
According to this invention, I place at the bottom of the stuffing box, and lying
against the neck bush, a ring of metal which may be divided into as many parts as
necessary in order that it may be more readily put into position. A recess is bored
in the face furthest away from the neck bush and next to the rod, and of such a
depth as may be found necessary for the reception of a metallic sleeve or bush.
This latter has a flange, and is divided into any number of segments. The
segments are divided where they are cut in such a way that no steam can pass
the said joint in the direction of the cut, on account of the joint being cut in a
zig-zag form, or of such shape as may be found best in practice, or the cut may
be straight if required.
The end of the sleeve opposite to that with the flange thereon is left plain so
that it may slide easily into the recess formed in the bush, at the bottom of the
stuffing box.
This forms the inner half of the packing, the outer half being an exact
duplicate in all respects except being placed the reverse way, that is, with the
projecting flange of the sleeve in contact with each other, the faces being fitted
together to form a steam-tight joint.
The stuffing box is filled in at the back of the sleeve, with asbestos or any
other suitable packing.
The ordinary gland is employed for tightening or screwing up the packing in
the ordinary way.
Dated this 2nd day of February 1892.
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, Penarth, in
the County of Glamorgan, Engineer, do hereby declare the nature of this inven-
tion 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 consists in a novel combination of metallic and ordinary packings.
This combination consists of two metal rings which, by means of a recess and
flange arrangement, overlap each other, ordinary packing laid between them, and a
duplicate pair of rings and intermediate packing, the two pairs being held within
the stuffing box back to back.
In order that the invention and the means by which it is to be carried into
practical effect may be thoroughly understood, I will now describe them in
detail, referring in so doing to the accompanying figures which are to be taken
as part of this Specification and read therewith.
Fig. 1 is a sectional longitudinal elevation.
Figs. 2, 3 and 4 are sectional elevations illustrating modifications in the sectional
contour of one of each pair of over-lapping rings.

page_text: a and b are an ordinary gland and stuffing box, and c is the rod to be packed.
d, d are two metal rings, 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 to each other, consequently their internal angles face in opposite directions,
one towards the gland and the other towards the bottom of the box. 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.
e, e are a pair of rings. They may be made in segments to facilitate their being
fitted into the box. Each ring stands when it is in its place facing the internal
angle of a ring d and has, moreover, an annular recess formed in the adjacent face
of it adapted to receive that portion of the respective ring d which lies upon
the rod c.
ff are the intermediate packings. They are of 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, the said packing will be forced up tightly against the box,
and, in its turn, press the rings d against the rod c.
The rings d may have their internal faces concave if necessary.
Referring to Figs. 2 to 4, the outer face of that portion of the ring d which fits
close to the rod e may be corrugated, as in Fig. 2, be provided with an annulus
triangular in cross section, as in Fig. 3, or with an annular groove / as in Fig. 4, so
as to give the rings and packings a tighter hold upon each other. Projections or
indentations of any shape suitable for the purpose may be used.
I do not confine myself to the sectional contours of the rings 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 inven-
tion 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 therewith.
2. The combination of rings L shaped in section with rings into which the former
can slide, as set forth.
Dated this 29th day of October 1892.
PHILLIPS & LEIGH,
No. 22, Southampton Buildings, Chancery Lane, W.C.,
Agents for the Applicant.