Improvements in Packings for Piston Rods, Valve Spindles, and the like.
Year: 1891

page_text: The decision of the Comptroller-General, of the 17th day of January 1894,
allowed, under Section 18 of the Patents, &c. Act, 1883, an Amendment of
this Specification.
Date of Application, 4th Apr., 1891-Accepted, 9th May, 1891
:
.
COMPLETE SPECIFICATION (AMENDED).
Improvements in Packings for Piston Rods, Valve Spindles, and
the like.
I, WILLIAM HENRY POOLE of Deane Mill, Bolton in the County of Lancaster,
Cotton Spinner, do hereby declare the nature of my said invention 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 improvements in metallic packings for piston rods, valve
spindles, and the like employed in steam engines, hydraulic, and other machinery,
and has for its object that of making a tight-joint with a minimum of friction, also
to allow for vibration on the rod or spindle passing through the packings.
In the stuffing-box I fix a gland against which is placed a ring with perforations
and springs to operate on a follower to press the packing rings and presser plate
against a ball joint liner in the gland or stuffing-box cover. The packing rings are
composed of two or more parts or sections with angular straight or tangential butt
joints; and may be made of any metallic materials, woodite, or other suitable
substances, with grooves or perforations on their outer surfaces or peripheries to
receive straight spiral or other suitable springs and mechanism to operate on the
same or abut against a belt encircling the springs and packings. Two or more of
the packing rings can be arranged side by side, with the tangential butt joints of
the sections of the respective rings breaking joint relatively to each other. The
encircling belt or its equivalent is free to move in any direction at right angles
or thereabouts to the centre line of the rod or spindle passing through the
packings. In the gland or stuffing-box cover is mounted a ball-joint liner against
which the presser plate and packings, or the packings alone, are forced by the
follower and springs. The ball-joint liner, follower, and springs are employed
for the purpose of allowing the packings to have free play, and make a tight-
joint without regard to vibration of the rod or spindle. The follower, belt, and
gland or stuffing-box cover may be made in halves to facilitate fixing or removal.
The inside of the gland or stuffing-box is slightly larger than the follower and
belt encircling the packings and springs, thus leaving room for any play necessary
for vibration of rod or spindle, or wear of rod and piston or other parts attached
to same. If desired this invention can be applied either singly or doubly according
to circumstances..
DESCRIPTION OF DRAWINGS.
Fig. 1 is a sectional elevation longitudinal section of my improved packings for
piston rods, valve spindles, and the like.
Fig. 2 is a transverse sectional elevation vertical section of Fig. 1 through line A¹B¹

page_text: .
Fig. 5 is a transverse section showing the same in four parts each.
Fig. 6 is a sectional elevation of another a modification of my invention wherein
the packing rings are composed of sections provided with tangential butt joints
held together by coiled or spiral springs.
Fig. 7 is a transverse section through line C' D' in Fig. 6.
Fig. 8 is a transverse section through my improved packing rings with short
spiral or coiled springs connected by yokes or bands, and
Fig. 9 is an outside elevation of packing rings showing the break-joint
arrangement to ensure a tight-joint.
In all the figures the same letters are employed to indicate corresponding parts..
A represents a piston rod, valve spindle, or other similar packed rod employed
in steam engines, hydraulic, and other machinery: B is the ordinary stuffing-box;
C the ordinary gland fitted with the bush D E is a ring provided with the
perforations to receive the springs F G is the follower; H the packing rings
provided with the perforations I to receive the springs J; K is a belt encircling
the packing rings H and springs J.; L is a presser plate; M the ball-joint liner;
N the stuffing-box, and O the stuffing-box cover.
The
The gland C, stuffing-box N, and cover O are secured in position by the bolts or
studs P and nuts 'Q. The stuffing-box N is fitted internally with the ring E placed
against the gland C. The ring E is provided with the springs F against which is
placed the follower G. Between the follower G and the presser plate L are
disposed the packing rings H composed of two or more sectional rings with
tangential butt joints. The packing rings H are provided with the perforations I
.containing the springs J, which abut against the belt K encircling the same.
belt K is fitted with the pins S to hold the rings H in their relative positions to
break the joints R as shown in Fig. 9. The belt K is free to move in any direction
at right angles or thereabouts to the centre line of the rod or spindle A passing
through the packings H. The packing rings. H can be made in two or more parts
with angular straight or tangential butt joints R, the tangential butt joints being
formed to the circumference of the rod or spindle A as shown on the drawings to
allow of the same closing automatically by spring or other pressure. By making
the packing rings H in two or more parts with straight-angular butt joints formed
tangentially to the circumference of the rod or spindle they are intended to operate
upon an equal wearing of the same will be effected, and as the wearing of the
packing rings takes place the springs J will force their respective part or parts
against the rod or spindle and thus produce and maintain a perfectly tight joint.
The packing rings H may be lined with "Magnolia" or other anti-friction metal
. or material. In the stuffing-box cover O is mounted the ball-joint liner M against
which the presser plate L and the packing rings H are pressed by the follower G
and springs F mounted in the ring E, for the purpose of allowing the packing
rings H to have free play and make a tight joint, regardless of the vibrations of the
rod or spindle A passing through the same. The inside of the stuffing-box N is
made larger than the outside diameter of the follower G, presser plate L, and
belt, K, to make room for any play that may be necessary for the movements of the
same according to the vibrations of the rod or spindle A.
Fig. 6 is a sectional elevation longitudinal section of my improved metallic
tangentially butt jointed packings wherein the belt K, presser plate L, and the
ring E are dispensed with. In this modification the packing rings H are provided
externally with the grooves or recesses I in which are mounted the spiral or coiled
springs to press the said parts or sections forming the packing rings together.
After the coiled or spiral springs J have been bent or passed round the packing
rings H-the two ends of each are hooked or secured together at T. as shown in Fig. 7.
The ball-joint liner M is provided with the flat surface L against which the
packing rings H are pressed by the follower G and. springs F mounted in the
perforations V.
In this arrangement the springs F operate or abut against the face of the flange
of the gland C.

page_text: If desired the spiral or coiled springs J-in the grooves or recesses I can be
made in two or more parts, being hooked or connected together by the yokes or
hands U as shown in Fig. 8.
I am aware that packing rings have already been made with butt joints, but these joints
have not been made tangential to the circumference of the packed rod and therefore have
not possessed the advantage that the joint is always tight not withstanding variations in the
rod, and I desire it to be understood therefore that I herein make no claim to any packing
in which tangential joints such as those hereinbefore described are not used.
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 :-
1. The general arrangements, constructions, and combinations of parts composing
the improved metallic packings for piston rods, valve spindles, and the like, as
herein before described and as illustrated in the annexed drawings.
2. In packing rings for the indiented purposes and composed of two or more
sections having tangential butt joints, and forced towards the centre by spring
or other pressure, arranging two or more of such packing rings side by side, the
tangential joints of the sections of the respective rings breaking joint-relatively
to each other, as-described and shown.
3. In packing rings composed of two or more sections having tangential-butt
joints, bushing or lining the said rings or sections-with "Magnolia" or other soft
or anti-frictional metal or material, substantially as described and shown:
4. 2. As means for compressing or forcing inwards the tangentially butt jointed
sections of packing rings as hereinbefore described, the surrounding or embracing
coiled springs J occupying recesses in the peripheries of the rings and linked or
hooked together substantially in the manner described and as illustrated on Sheet 2
of the drawings.
Dated the 31st March 1891
EDMUND CHADWICK,
Agent.

page_text: ate of Application, 4th Apr., 1891-Accepted, 9th May, 1891
COMPLETE SPECIFICATION.
Improvements in Packings for Piston Rods, Valve Spindles, and
the like.
1, WILLIAM HENRY POOLE of Deane Mill, Bolton in the County of Lancaster,
Cotton Spinner, do hereby declare the nature of my said invention 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 improvements in metallic packings for piston rods, valve
spindles, and the like employed in steam engines, hydraulic, and other machinery,
and lias for its object that of making a tight-joint with a minimum of friction, also
to allow for vibration on the rod or spindle passing through the packings.
In the stuffing-box I fix a gland against which is placed a ring with perforations
and springs to operate on a follower to press the packing rings and presser plate
against a ball joint' liner in the gland or stuffing-box cover. The packing rings are
composed of two or more parts or sections with angular straight or tangential butt
joints and may be made of any metallic materials, woodite, or other suitable
substances, with grooves or perforations on their outer surfaces or peripheries to
receive straight spiral or other suitable springs and mechanism to operate on the
same or abut against a belt encircling, the springs and packings. Two or more of
the packing rings can be arranged side by side, with the tangential butt joints of
the sections of the respective rings breaking joint relatively to each other. The
encircling belt or its equivalent is free to move in any direction at right angles
or thereabouts to the centre line of the rod or spindle passing through the
packings. In the gland or stuffing-box cover is mounted a ball-joint liner against
which the presser plate and packings, or the packings alone, are forced by the
follower and springs. The ball-joint liner, follower, and springs are employed
for the purpose of allowing the packings to have free play, and make a tight-
joint without regard to vibration of the rod or spindle. The follower, belt, and
gland or stuffing-box cover may be made in halves to facilitate fixing or removal.
The inside of the gland or stuffing-box is slightly larger than the follower and
belt encircling the packings and springs, thus leaving room for any play necessary
for vibration of rod or spindle, or wear of rod and piston or other parts attached
to same. If desired this invention can be applied either singly or doubly according
to circumstances.

page_text: A represents a piston rod, valve spindle, or other rod employed in steam engines,
hydraulic, and other machinery; B is the ordinary stuffing-box; C the ordinary
gland fitted with the bush D E is a ring provided with the perforations V to
receive the springs F G is the follower; H the packing rings provided with the
perforations to receive the springs J K is a belt encircling the packing rings H
and springs JL is a presser plate M the ball-joint liner: N the stuffing-box,
and the stuffing-box cover.
:
The gland C, stuffing-box N, and cover O are secured in position by the bolts or
studs and nuts Q. The stuffing-box N is fitted internally with the ring. E placed
against the gland C. The ring E is provided with the springs F against which is
placed the follower G. Between the follower G and the presser plate Lare
disposed the packing rings I composed of two or more sectional rings with
tangential butt joints. The packing rings H are provided with the perforations I
containing the springs J, which abut against the belt K encircling the same. The
belt is fitted with the pins S to hold the rings H in their relative positions to
break the joints R as shown in Fig. 9. The belt K is free to move in any direction
at right angles or thereabouts to the centre line of the rod or spindle A passing
through the packings H.. The packing rings I can be made in two or more parts
with angular straight or tangential butt joints R, the tangential butt joints being
formed to the circumference of the rod or spindle A. as shown on the drawings to
allow of the same closing automatically by spring or other pressure. By making
the packing rings H in two or more parts with straight angular butt joints formed
tangentially to the circumference of the rod or spindle they are intended to operate
upon an equal wearing of the same will be effected, and as the wearing of the
packing rings takes place the springs J will force their respective part or parts
against the rod or spindle and thus produce and maintain a perfectly tight joint.
The packing rings I may be lined with "Magnolia" or other anti-friction metal
or material. In the stuffing-box cover O is mounted the ball-joint liner M against
which the presser plate L and the packing rings H are pressed by the follower G
and springs F mounted in the ring E, for the purpose of allowing the packing
rings H to have free play and make a tight joint regardless of the vibrations of the
rod or spindle A. passing through the same. The inside of the stuffing-box N is
made larger than the outside diameter of the follower G, presser plate L, and
belt K, to make room for any play that may be necessary for the movements of the
same according to the vibrations of the rod or spindle A.
Fig. 6 is a sectional elevation of my improved metallic tangentially butt jointed
packings wherein the belt K, presser plate L, and the ring E are dispensed with.
In this modification the packing rings H are provided externally with the grooves
or recesses I in which are mounted the spiral or coiled springs to press the said
parts or sections forming the packing rings together. After the coiled or spiral
springs J have been bent or passed round the packing rings H the two ends of cach
are hooked or secured together at T as shown in Fig. 7. The ball-joint liner M is
provided with the flat surface L against which the packing rings H are pressed
by the follower G and springs F mounted in the perforations V.
In this arrangement the springs F operate or abut against the face of the flange
of the gland C.
If desired the spiral or coiled springs J-in the grooves or recesses -can be
made in two or more parts, being hooked or connected together by the yokes or
hands U as shown in Fig. 8.
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 :-
:-
1. The general arrangements, constructions, and combinations of parts composing
the improved metallic packings for piston rods, valve spindles, and the like, as
hereinbefore described and as illustrated in the annexed drawings.
2. In packing rings for the indicated purposes and composed of two or more

page_text: sections having tangential butt joints, and forced towards the centre by spring
or other pressure, arranging two or more of such packing rings side by side, the
tangential joints of the sections of the respective rings breaking joint relatively
to each other, as described and shown.
3. In packing rings composed of two or more sections having tangential butt
joints, bushing or lining the said rings or sections with "Magnolia" or other soft
or anti-frictional metal or material, substantially as described and shown.
.J
4. As means for compressing or forcing inwards the tangentially butt jointed
sections of packing rings as hereinbefore described, the surrounding or embracing
coiled springs J occupying recesses in the peripheries of the rings and linked or
hooked together substantially in the manner described and as illustrated on Sheet 2
of the drawings.
EDMUND CHADWICK,.
Agent.