Metallic Packing. Page: 2 of 3
[1], 2 p. : ill. ; 23 cm.View a full description of this patent.
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UNITED STATESPATENT OFF.ICE.
MARCUS F. FULFORD, OF FORT WORTH, TEXAS.
METALLIC PACKING.No. 911,228.
Specification of Letters Patent..
Application filed May 23, 1908.. Serial No. 434,556.To all whom it may concern:
Be it known that I, MAncUs F. FULFORD,
citizen of the United States, residing at Fort.
Worth, in the county of Tarrant and State of'
5 Texas, have invented certain new and useful1
Improvements in Metallic Packings, of which
the following is a specification.
The present invention provides a packing
designed most especially for piston rods and
10 valve stems of engines, pumps and the like,
the purpose being to supply a packing which
will insure the maintenance of a tight joint
capable of being easily and economically ap-
plied, free from corrosion and adapted to vi-
15 brate with the rod or stem and thereby obvi-
ate binding and unsteady movement.
For a full understanding of the invention
and the merits thereof and also to. acquire a
knowledge of the details of construction and
20 the means for effecting the result, reference is
to be had to the following description and ac-
companying drawings.
While the invention may be adapted to dif-
ferent forms and conditions by changes in
25 the structure and minor details without de-
parting from the spirit or essential features
thereof, still the preferred embodiment is
shown in the accompanying drawings, in
which:
30 Figure 1 is a longitudinal section of a stuff-
ing box provided with packing embodying
the invention. Fig. 2 is a detail perspective
view of the packing rings. Fig. 3 is a trans-
verse section on the line x-x of Fig. 1.
35 Corresponding and like parts are referred
to in the following description-and indicated
in all the views of the drawings by the same
reference characters.
The stuffing box 1 is closed at its outer end
40 by the usual gland 2 and between said gland
and the inner end of the stuffing box are lo-
cated several parts consisting of the packing
rings and the elements cooperating there-
with.
45 The part 3 may be a rod or stem adapted
to reciprocate in the stuffing box and be-
tween which and said stuffing box a tight
joint is to be maintained.
The packing rings 4, 5 and 6 may be of any
5o material according to the special adaptation
of the packing, the ring 4 being arranged so
as to encircle the rings 5 and 6 and to over-
lap the joint between them. The several
packing rings 4, 5 and 6 are split and are ar-
55 ranged to break joint.Patented Feb. 2, 1909.
The outer edges of the rings 4 and 5 and 4
and 6 are oppositely beveled to correspond
with the bevel of coperating rings 7 and 8
located upon opposite sides of the packing
rings. The vibrating ring 8 fits the rod or eo
stem 3 snugly and abuts against the ball ring
9, which is interposed between the inner end
of the gland and the vibrating ring 8. The
pressure ring 7 sustains the outward thrust
of a coil spring 10 which is interposed be- on
tween it and the neck ring 11, the latter being
placed against the inner shoulder formed at
the inner end of the stuffing box 1.
The rings 8, 7 and 11 are bored so as to ob-
tain a close joint upon the rod or stem 3 and 70
are of a depth to admit of the cooperating
p arts obtaining ample purchase thereon.
Sufficient space is provided between the in-
ner walls of the stuffing box and the packing
elements to admit of the latter vibrating 75
with the rod so as to prevent unsteady
movement or jar. The pressure ring 7 sus-
tains the outward thrust of the spring 10 as
well as the thrust upon the inner ends of the
packing rings 4 and 5. The packing rings 4, so
5 and 6 are sprung upon the rod or stem 3 so
as to act automatically in maintaining a close
joint therewith and with one another. The
ball ring 9 forms a curved joint with the inner
end of .the gland 2 and is adapted to move 85
and yet prevent the formation of a space
which would admit of leak.
Having thus described the invention, what
is claimed as new is:
1. In combination, a stuffing box, a rod or 90
stem arranged to reciprocate therein, two
split packing rings formed with oppositely
beveled outer edges mounted upon said rod
or stem and arranged to break joint, a third
split packing ring mounted on the two pack- 95
ing rings and breaking joint therewith, said
third ring being formed with beveled edges,
a pressure ring, and a vibrating ring mounted
upon the rod upon opposite sides of the pack-
ing rings and having their inner sides bev- 100
eled, a ball ring between the vibrating ring
and the gland of the stuffing box, a neck ring
at the inner end of the stuffing box, and a
pressure spring confined between the neck
and rings. 105
2. In combination, a stuffing box, a rod or
stem arranged to reciprocate therein, split
packing rings mounted upon said rod or stem
and arranged to break joint, a third packing
ring mounted upon the said two packing 116
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Fulford, Marcus F. Metallic Packing., patent, February 2, 1909; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth512053/m1/2/: accessed July 5, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.