Floating Metallic Packing for Piston, Valve and other Rods and Pumps.
Year: 1897

page_text: Date of Application, 4th May, 1897
Complete Specification Left, 18th Jan., 1898-Accepted, 4th May, 1898
PROVISIONAL SPECIFICATION.
Floating Metallic Packing for Piston, Valve and other Rods
and Pumps.
EVAN TADMAN FERRIER, 19, St. Andrews Crescent, Cardiff, Merchant, do hereby
declare the nature of this invention to be as follows:
The packing is composed of three segments, with one or two cups if necessary.
Two discs, the top one recessed, so as to allow a ring to be incerted, if necessary,
and two loose rings, one on each end of segments.
The three segments combined forms a bush, or ring, round the rod. One end,
or both may be made into a cone. If one end only is coned, the cup will be coned
the whole length of the segments, and the same taper, so as to form a joint, then
thereby forming a pair of metal wedges.
In adopting two cups, one on each end of the segments, then both cups will be
coned as well as the segment ends, thereby forming two sets of circular metal
wedges, one on each end of the segments, and when put together on the rod, in
the stuffing-box, the top cup will be pressed against the top disc, and the bottom
disc against the bottom cup, then by gently pressing the gland against the bottom
disc, the cones in the cups are pressed against the cones in the segments, which
presses the segments against the rod, thereby adjusting the. packing.
The cups and discs are made in halves of suitable metal, and are secured together
by dogs, or straps both ends being hooked together. The two discs are placed one
on top, of top cup, and one under bottom cup, to allow the packing to float between.
them, the packing being smaller in diameter than the box allows the cups to
float, should the rod vibrate.
The top disc is placed against the cylinder neck bush, between that and the top
cup, and will be recessed sufficiently, to receive a ring in segments, and fitted to
the rod, and kept to it by a circular spring.
The two loose rings are placed one on each end of the segments, forming part
of the cone, and to cover the segment joints.
The object of this invention is with a view of making an improvement in floating
metallic packing.
T
100x

page_text: manner the same is to be performed, to be particularly described and ascertained
in and by the following statement:-
The present invention relates to improvements in floating metallic packing for
piston, valve and other rods and pumps.
Referring to the accompanying figures which are to be taken as part of the
specification and read therewith.
Figure 1 is a sectional view taken after a portion of the packing cups has been
broken away to show the internal portion of it.
Figure 2 is a plan of the segmental packing ring H, H, of Figure 1, showing
the segmental ring G 1 on top of the packing ring H, H.
Figure 1 a portion of the top and bottom packing cups F1, F2, has been
broken away to show the internal construction of it.
A is a piston rod; B, its stuffing box; C, the gland; D, the neck bush; E is
the inner ring, which stands at the bottom of the stuffing box, next to the neck
bush. F1, F2, is a sectional view of the two cups coned as shown in Figure 1,
which are bored to allow the piston rod to pass through smoothly.
H, H, is a sectional view of the segmental packing ring of Figure 1, the ends of
which are coned to the same angle as that of the cones in the cups F1, F2; and
are made to fit one into the other.
I1, 12, is a vacant space at the end of the segments. H, H, is for draft, to
allow for wear upon the packing ring segments, during which the cups F1, F2,
are gradually closing upon the segmental packing ring, and will continue to,
until the cups meet, when they will probably need renewing.
J is a sectional view of the bottom ring of Figure 1, upon which the segmental
packing ring, and cups, rest when built up to the rod and placed in the stuffing
box to be gently tightened up with the gland C. The ring J being the base
of the packing, is pressed against the cup F2, then forcing the packing ring
segments, into the coned cup F1; and against the ring E; and against the neck
bush.
The combined action of the cones are adapted to press and keep the packing up
against the rod.
The cups F1, F2, slides easily upon the adjacent flat faces of the rings E, and J.
The said cups being of lesser diameter than the rings E, and J, allows the packing
ring segments to float and follow the rod.
G1, G2, of Figure 1 is a sectional view of the segmental ring, placed on top
and bottom of the packing ring H, H, the functions of which is to cover the
segment joints to prevent steam passing, also to form part of the segmental cone,
and to be of equal fit in the cups, and on the rod.
The cups when made, are kept sufficiently apart to allow for wear as shown in
Figure 1.
When the cups and rings are made in halves, they are secured together on the
rod with a band, the ends of which are rivited together on the rod, and driven on
the cups, and rings, this course would be adopted, should there be any objection
to disconnect the piston rod from the cross head, otherwise, I would put them on
solid.
Having now particularly described and ascertained the nature of the said inven-
tion, and in which manner the same is to be performed, I declare that what
I claim is:
1. In a metallic packing of the class specified; the combination of cone ended
packing ring segments; and cups, internally coned, which are made to fit the ends
of the coned packing ring segments; which are adapted to press the packing, and
keep it to the rod, and like wise float as set forth.
2. In a metallic packing of the class specified; the combination of coned packing
ring segments; with cups internally coned, out side of each, and at right angles there-
with, over the adjacent flat faces, of which the respective packing ring or rings,

page_text: and cups, can slide. The cups being of lesser diameter than the adjacent rings,
allows the cups to slide as set forth.
Dated this 17th day of January 1898.
EVAN TADMAN FERRIER,
19, St. Andrews Crescent, Cardiff, County of Glamorgan, Merchant.