AN IMPROVED METALLIC PACKING FOR PISTON ROD STUFFING BOXES AND OTHER PURPOSES "
Year: 1882

page_text: LETTERS PATENT to William Vawdrey Ley of Liverpool in the County of
Lancaster for an invention of "AN IMPROVED METALLIC PACKING FOR
PISTON ROD STUFFING BOXES AND OTHER PURPOSES
"
PROVISIONAL SPECIFICATION left by the said William Vawdrey Ley at
AN
the Office of the Commissioners of Patents on the 27th March 1882.
WILLIAM VAWDREY LEY, of Liverpool in the County of Lancaster
IMPROVED METALLIC PACKING FOR PISTON ROD, STUFFING BOXES AND OTHER
PURPOSES.
My Invention consists of an improved metallic packing for piston rod, stuffing
boxes and other purposes. According to my Invention I use metal, such as white
metal in a molecular condition, namely of a spherical or equivalent form in
combination with asbestos and parrafine, wax, grease, or equivalent lubricant.
In the manufacture I compound together the metallic spheres the asbestos and
the lubricant into the form required, for example in constructing a packing for
piston rod stuffing boxes, I use a mould corresponding to the size of the piston rod,
which mould is preferably constructed in halves. In the mould I place a layer of
the metallic spheres and I then pour and ram in a compound of the lubricant and
asbestos, which is preferably used hot. I then repeat the metallic spheres and the
lubricant and asbestos compound, until the packing is of the desired thickness.
The metallic spheres are bound together by the lubricant and asbestos compound
and form together a compact mass which is at the same time self adjusting when
placed in the stuffing box. The packing is formed in rings, or semi rings, and may
if desired be enveloped in paper to facilitate application.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said William Vawdrey Ley in the Great Seal Patent Office on the
22nd September 1882.
WILLIAM VAWDREY LEY, of Liverpool, in the County of Lancaster
<< AN
IMPROVED METALLIC PACKING FOR PISTON-ROD, STUFFING BOXES AND OTHER
PURPOSES "
My Invention consists of an improved metallic packing for piston rod stuffing
boxes and other purposes. According to my Invention I use metal, such as "white
metal" in a molecular condition, namely of a spherical, oval, or equivalent form in
combination with asbestos and parrafine wax, grease, or equivalent lubricant, the
packing being formed into rings, or segments of rings by moulding, or made in
the form of a continuous packing by enclosing the molecular metal the asbestos
and the parrafine wax in a canvas, or equivalent cover.
In the manufacture of my improved metallic packing, I compound together the
metallic spheres, the asbestos and the lubricant into the form required for example
in constructing a packing for piston rod stuffing boxes I use a mould, the inside
diameter of which corresponds to the size of the piston rod. This mould is
preferably constructed in halves. In the mould I place a layer of the metallic
spheres and I then pour over the spheres and ram in a compound of the lubricant
and asbestos, which is preferably used hot. I then repeat the metallic spheres
and the lubricant and asbestos compound, until the packing is of the desired
thickness. The metallic spheres are bound together by the lubricant and asbestos
compound and form together a compact mass, which is at the same time self
adjusting when placed in the stuffing box and the gland screwed up. The packing
is formed in rings or semi rings, or segments of rings and may if desired be
envelloped in paper, or canvas to facilitate application, particularly to warm
glands.
In constructing the packing according to my Invention, in a continuous form, I
take a tube of canvas, say about three ply and into this tube, I pack the metallic
spheres, the asbestos and the lubricant, until a solid circular packing is formed,
which may be used as a continuous packing, or cut into rings, or segments of rings
to suit the stuffing box.
That my Invention may be more clearly understood I have annexed a sheet of
Drawings which are marked with letters and figures of reference corresponding
with those in the following explanation, like letters being used to denote the same
or corresponding parts throughout the various views.

page_text: white metal
such as the following mixture which I quote as a suitable mixture,
but which does not form part of my Invention.
Antimony
Block tin
Lead
-
Zinc spelter
-
1 parts by weight.
-
"
"
"
-
3
39
33
-
8
"
"
ور
ور
The white metal spheres A are bedded in a compound of asbestos and parrafine
wax B; the asbestos being heavily saturated, or charged with the parrafine wax.
The metal spheres A when moulded and embedded in the asbestos and parrafine
wax compound B assume the appearance as shown at Figures 1 and 3.
In Figures 2 and 4 there is shown the appearance of the metal spheres A and
the asbestos and parrafine wax compound B, when packed, or enclosed in the
canvas tube C.
The application of the packing to the piston rod stuffing box D is illustrated at
Figure 5. In the application I prefer first to place a ring of fibrous packing E at
the bottom of the stuffing box D. I then fill the stuffing box with rings of the
molecular metal packing before described and place the gland H in position. As
the gland H is screwed up, the metal spheres A always find their position against
the piston rod J. At the same time a thorough lubricant is formed by the asbestos
and parrafine wax compound B.
When it is desired to use the canvas covered packing as shown at Figure 2, the
same may be used in rings, or coiled into the stuffing box, as will be understood.
Having now described my Invention and shown how the same may be put into
practical operation, I would have it understood that my Invention is not limited
to the precise form of packing shown in the Drawings, or to the exact size of the
metal spheres nor to the use of parrafine wax as the lubricant, as it will be evident
that other lubricants may be used, but what I claim as the Invention secured to
me by Letters Patent as aforesaid is
The Improved Metallic Packing substantially as herein described and shown in
the Drawings hereto annexed.
In Witness whereof, I the said William Vawdrey Ley, have hereunto set
my hand and seal this Nineteenth day of September in the year of our
Lord one thousand eight hundred and eighty two.
WILLIAM VAWDREY LEY (L.S.)