Rods and similar Purposes.
Year: 1885

page_text: Rods and similar Purposes.
I, ERNEST EDWARD GABRIEL, of The Vicarage, Rockcliffe, Nr Carlisle, Cumber-
land, Mechanical Engineer, do hereby declare the nature of my said invention for
IMPROVED SELF ADJUSTING METALLIC PACKING FOR PISTON AND VALVE RODS
AND SIMILAR PURPOSES, to be as follows :-
This invention relates to an improved construction of Metallic Packing for
Piston and Valve Rods, Pump plungers etc, applicable to the various stuffing boxes
of usual construction, capable of entirely preventing the escape of steam, liquids, or
gas, notwithstanding irregularities of rod or faults of alignment, and yet free from
rigid parts to cause excessive friction. One distinctive feature of this improved
packing, as shown in the several modified forms, is in its peculiar construction,
whereby it will readily accomodate itself to all the varying positions of rod or
plunger under the most unfavorable conditions.
I construct this packing in the manner hereafter described, reference being had
to the accompanying drawing and to the letters of reference marked thereon.
The several forms shown being but modifications of the same invention. Same
letters or numerals indicate like parts in the different figures.
Figures 1, 3, 6, are longitudinal sections of three modifications of the improved
packing as applied to steam cylinders.
Fig. 2. Transverse section on line A. B. Fig. 1.
Fig. 4. Transverse section on line C D. Fig. 3.
Fig. 5. Plan of recessed plate e¹ of Fig. 3.
Fig. 7. Plan of packing blocks in segments g¹ Fig. 6.
Fig. 8. Plan of undivided or ring block g³ Fig. 6.
a. cylinder cover. b, piston rod.
c. packing box. d, packing box cover.
e. compound socket-plate recessed for spring, the inner or plain face ground.
el single socket-plate with a series of recesses for springs.
e outer single socket-plate with the plain face ground.
f, longitudinal springs. f¹ radial springs.

page_text: longitudinal direction.
g segmental packing blocks with spherical ends.
gå ring packing block with spherical end.
h. segmental packing block with truncated cone ends.
h¹ segmental packing blocks divided transversely with truncated cone ends.
j. ferrule or pin to keep spring from shearing.
k. elastic packing ring for packing box cover.
1. seating for lubricating devices.
The rationale of these improvements will be understood by a detailed description
of the modification shown in Fig. 1.
By this arrangement, it will be evident that the rod is supported by the piston
at one end and the cross-head at the other, although neither are shown in the
drawing.
The cylinder end, the box cover, and all the parts that constitute the packing,
are so arranged that they readily accomodate themselves to irregularities of rod or
want of proper alignment between the two supports. The cylinder end and box
cover are bored to a diameter something in excess of diameter of rod.
The bottom of packing box (c), and inner face of box cover (d), and faces of
socket-plates (e) and (e), have ground surfaces working together. One end of each
of the semi spherical collars (7) are bored to fit the rod, but have a free transverse
movement with the rod. The cone ended packing blocks (h) are held closely to
the rod by the action of the studs, which secure the box cover working against the
spring (f), and thus forcing the cone ended blocks into the conic recesses in
collars (g) the action of the spring giving a degree of elasticity or freedom to yield
to extra pressure.
The ball joints at each end of the packing blocks augment the freedom of
transverse movement without causing any escape of steam.
The elastic packing ring (c) prevents the escape of steam from the box past the
box cover.
The box may be kept filled with a lubricant through the opening at (7), and in
this manner closing all the interstices in the packing blocks, etc, and maintaining a
uniform lubrication of rod.
Fig. 3. shows a different arrangement of socket-plate, and a different system of
longitudinal springs, with the addition of radial springs to hold packing blocks
to the rod.
Fig. 6. shows the compound socket-plate, the radial springs, with packing blocks
divided transversely, with only one part formed in segments, the springs and
recesses being so arranged that the two divisions are always maintained in the
same relative position to each other.
Under certain conditions it may be advisable to form both divisions of segments.
It will be seen that by the methods shown, and in the manner described, a
durable and effective packing can be made, capable of self adjustment to the
various faults and positions which may occur, and applicable to the stuffing boxes
in common use.
It will be evident that the form of the packing blocks, as shown, admits of the
use of any of the various metals and alloys that have been proved suitable for bearings
and wearing surfaces under varying conditions of lubrication and temperature.
Dated this 24th day of February 1885.

page_text: Rods and similar Purposes.
I, ERNEST EDWARD GABRIEL The Vicarage, Rockcliffe Nr Carlisle, Cumberland,
Mechanical Engineer, do hereby declare the nature of my invention for IMPROVED
SELF ADJUSTING METALLIC PACKING FOR PISTON AND VALVE RODS, AND SIMILAR
PURPOSES, and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement:-
This Invention relates to an improved construction of Metallic Packing for
Piston and Valve Rods, Pump Plungers, and similar purposes, applicable to the
various stuffing boxes of usual construction, capable of entirely preventing the
escape of steam, liquids or gas, notwithstanding irregularities of rod or faults of
alignment, and yet free from rigid parts to cause excessive friction. One distinctive
feature of this improved packing, as shown in the several modified forms, is in its
peculiar construction, whereby it will readily accomodate itself to all the varying
positions of rod or plunger under the most unfavorable conditions. I construct
this packing in the manner hereafter described, reference being had to the drawing
accompanying the Provisional Specification, and to the letters of reference marked
thereon.
The several forms shown being but modifications of the same invention. Same
letters or numerals indicate like parts in the different figures.
Figures 1, 3 and 6, are longitudinal Sections of three modifications of the
improved packing as applied to steam cylinders.
Figure 2. Transverse section on line A. B. Fig. 1.
Figure 4. Transverse section on line C. D. Fig. 3.
Figure 5. Plan of recessed plate e¹ of Fig. 3.
Figure 7. Plan of packing blocks in segments g¹ Fig. 6.
Figure 8. Plan of undivided or ring block g² Fig. 6.
a. Cylinder cover.
b. piston rod.
c. packing-box.
d. packing-box cover.
e. compound sliding socket-plate recessed for spring or springs, the inner or plain
face ground.
el single socket plate with a series of recesses for springs.
e single sliding socket plate with the plain face ground.
f. longitudinal spring.
f¹ radial springs.
g semi spherical collar, encircling the rod, bored to form a conical recess in its
longitudinal direction.
g segmental packing blocks with spherical ends.
g ring packing block with spherical end.
h. segmental packing blocks with truncated coned ends.
segmental packing blocks divided transversely with truncated coned ends.
j. ferrule or pin to keep spring from shearing.
k. elastic packing ring for packing-box cover.
1 seating for lubricating devices.

page_text: The rationale of these improvements will be understood by a detailed description
of the modification shown in Fig. 1.
By this arrangement, it will be evident that the rod is supported by the piston
at one end and the cross-head at the other, although neither are shown in the
drawing.
All the parts that constitute the packing are so arranged that they readily
accomodate themselves to irregularities of rod or want of proper alignment between
the two supports.
The cylinder end and box cover are bored to a diameter something in excess of
diameter of rod.
The bottom of packing box (c), and the plain face of compound socket plate (e),
and also the inner face of box cover (d), and plain face of socket plate (c²), have
scraped or ground surfaces working together, as shown. (e) being a compound
plate containing spring or springs.
The outer end of each of the semi spherical collars (g) are bored to fit the
rod, but have a free transverse movement with it, the inner end of each having a
conical recess formed therein to receive the ends of packing blocks.
The cone ended packing blocks (h) are held closely to the rod by the action of
the studs, which secure the box cover working against the spring (f), and thus
forcing the cone ended blocks into the conic recesses in collars (g), the action
of the spring giving a degree of elasticity or freedom to yield to excessive
pressure.
The ball joints at each end of the packing blocks, working in combination with
the sliding socket plates, admit of any transverse movement, even if not at exact.
right angles with axial line of rod, without causing any escape of steam.
The elastic packing ring (k) prevents the escape of steam from the box past the
box cover.
The box may be kept filled with a lubricant through the opening at (7), thereby
closing all the interstices in the packing blocks, etc, and maintaining a uniform
lubrication of rod.
·
Figure 3. shows a different arrangement of socket-plate and an alternative
arrangement of longitudinal springs. It also shows the segmental cone ended
packing blocks divided transversely, and a series of radial springs to hold the
packing blocks closely to the rod.
Figure 6. shows the compound socket plate with longitudinal spring, as shown in
Fig. 1. The packing block being divided transversely with only one part formed
in segments, the ends forming the ball joints, as shown. The blocks are held closely
to the rod by the radial springs.
The springs, and recesses for springs, are so arranged that the two divisions are
always maintained in the same relative position to each other.
Under some conditions it may be advisable to form both divisions of seginents.
The cone ends of the packing blocks are carefully. formed and ground into the
conic recesses of the semi spherical collars, and the semi spherical collars and the
corresponding recesses in the socket plates, which form the ball joints, are all
accurately formed and ground together to forin steam tight joints.
It will be evident that the form of the packing-blocks, as shown, admits of the
use of any of the various metals and alloys that have been proved suitable for
Hearing and wearing surfaces under various conditions of lubrication and tem-
periture.
It will be seen that by the methods shown, and in the manner described, a
durable and effective packing can be made, capable of self adjustment to the
various faults and positions which may occur, and applicable to the stuffing boxes
in common use.
There are various methods of division of segments and breaking of joints, in
addition to those shown, that are too well known to need description, to these
I make no claim.

page_text: Having now particularly described and ascertained the nature of my said
Invention, and in what manner the same is to be performed, I declare that what
I claim is
1st The general arrangement of Metallic packing consisting of,
1st A series of packing blocks of such outlino that when in position encircling
the rod their ends are truncated cones.
2nd Two semi spherical collars bored to fit the conic ends of packing
blocks.
3rd Socket plates, one with one flat ground face, and one face bored to receive
spherical end of collar. One arranged to receive spring or springs,
substantially as described and shown.
2nd In metallic packing, segmental packing blocks having double truncated coned
ends, substantially as described and shown.
3rd In metallic packing. The combination of semi spherical collars having
conical recesses in combination with packing blocks having truncated coned ends,
substantially as described and shown.
4th In metallic packing, the socket plate in combination with the semi spherical
collars, in the manner and for the purpose described, substantially as shown in
Figs. 1 and 3.
5th The compound socket plate, substantially as shown in Figures 1 and 6. and
for the purpose set forth.
6th In metallic packing, packing-blocks with truncated spherical ends, sub-
stantially as arranged and shown in Figure 6.