Combined Metallic and other Packing for Piston and other Rods.
Year: 1897

page_text: Date of Application, 9th Oct., 1897
Complete Specification Left, 6th July, 1898-Accepted, 27th Aug., 1898
PROVISIONAL SPECIFICATION.
Combined Metallic and other Packing for Piston and other Rods.
We, CHARLES HELLYER, of Saint Andrews Dock, Hull, Steam Ship Owner, and
CILARLES WILLIAM WILKES, 133, Somerset Street, Hull, Engineer, do hereby
declare the nature of 'this invention to be as follows:-
:-
Our invention consists in the application of an alloy metallic packing to piston,
valve, and other rods, working in contact with steam, gas, or water, in which we
prefer to fit the metallic packing in one length longitudinally, nearly the whole
depth of the stuffing box, and cut preferably into three segments, the whole fitting
close to usual or special neck ring at bottom of stuffing box. To intercept steami
passing the segment joints at the base, we fit cod pieces over same, and then fit
our metallic packing easily into stuffing box diameter for about one inch at
bottom of same, we reduce externally the remainder of the length called the
sleeve; so as to form a space between metallic packing and side of stuffing box,
this we fill preferably with common packing the whole depth of sleeve, and then
between this and the usual or other special gland, we fit one or more turns of
special packing, preferably asbestos quality so that when the whole is gently
screwed up, it is steam tight, without undue external pressure of the packing on
the rod.
Thin Wighth low of Antahan 1007
CHARLES HELLYER.
CHAS. W. WILKES.
Combined Metallic and other Packing for Piston and other Rods.
CILARLES HELLYER, St. Andrews Dock, Hull, Steam Trawler Owner, CHARLES
WILLIAM WILKES, 133, Somerset Street, Hull, Supt. 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:-
Our invention consists in the application of an alloy metallic packing, to piston,
valve and other rods, working in contact with steam, gas, or water.
We prefer
to fit the metallic packing in one length, longitudinally nearly the whole depth
of the stuffing box, and cut preferably into three or more segments, the whole
fitting close endways, to usual neckring, or specially shaped neck ring at inner
end of stuffing box. We make our metallic packing externally of two different
diameters, fitting a soft packing between the smaller diameter, and the side of
the stuffing box.

page_text: In order that our invention may be the more readily understood, we append
hereunto, one sheet of explanatory drawings to be hereinafter referred to.
Figure 1, is a sectional elevation, and Figure 2, is a plan of our combined
metallic packing, as fitted to a usual piston rod.
The same reference letters, in the different views indicate the same parts.
Referring to Figure 1 and Figure. 2, is the stuffing box, of a piston rod r,
with usual gland g, whilst a, a, a, a, is our metallic packing, cut longitudinally
into three or more segments the whole fitting endways, against neck ring n,
which may be flat bevilled or rounded. To intercept the steam at the segmental
joints, we fit cod peices c, c, c. We make the packing externally of two different
diameters, a, a, being the larger diameter and a¹, a¹, called the sleeve, the
smaller diameter, and we make both ends of the sleeve, square bevilled or rounded,
the space between the sleeve part of our packing, and the stuffing box we fill with
soft packing S, and between this and the gland g, we fit asbestos or other
packing p, so that when the gland g, is gently screwed up, it is steam tight with-
out undue external pressure on the piston rod r.
We may either make the sleeve part of our packing parallel to inside bore, or
more or less tapered to same.
Having now particularly described and ascertained the nature of our said
invention, and in what manner the same is to be performed, we declare that what
we claim is:-
-
1. A metallic packing which externally is made two different diameters, the
larger diameter fitting easily into stuffing box, and pressing against neckring,
and the smaller diameter or sleeve part allowing a soft packing to fit between
side of stuffing box and sleeve, all as described and shewn.
2. The combination of a metallic packing fitting close to piston or other rod,
with a soft packing behind the metallic packing, causing both end pressure on
the neck ring, and side pressure on to the rod through the pressure put on soit
packing by the gland, all as described and shewn.
Dated this 5th day of July 1898.
CHARLES HELLYER.
CHARLES WILLIAM WILKES.