Improvements in Packing for Stuffing Boxes of Steam Engines, Pumps, and other Mechanical Appliances.
Year: 1892

page_text: Date of Application, 18th Nov., 1892
Complete Specification Left, 29th July, 1893-Accepted, 30th Sept., 1893
PROVISIONAL SPECIFICATION.
Improvements in Packing for Stuffing Boxes of Steam Engines,
Pumps, and other Mechanical Appliances..
JAMES BURAL BURRELL 47 Eldon Road Riverside Cardiff County of
Glamorgan, Marine Engineer, do hereby declare the nature of this invention
to be as follows:-
This improved packing is for the purpose of keeping a stuffing box perfectly
tight with small amount of friction and to resist high pressure. It (the packing)
is composed of several materials such as metal, and a fibrous substance, hemp, flax,
cotton asbestos, jute or grass separately or two or more combined or a fibrous
material mixed with a mineral and india-rubber vulcanized can be used. The
fibrous or elastic material is for the purpose of keeping the metal in position, the
metal is in the form of rings, two or more being used in each ring or turn of
packing. In a set of three metal rings, the centre one is of a triangular shape, the
other two being of nearly square form except where they join on to the triangular
or centre ring that side is made to fit upon the ring. These rings are cut in several
places, and there are slots run in the ends of the pieces and tongue pieces fitted.;
or pieces are fitted on the top of each cut for the purpose of preventing any pressure
passing through the space left by the cut. Several sets of rings or turns of
packing are used together regulated by the size of the ring and depth of stuffing
box. The action of these rings is, when placed in a stuffing box, the pressure
acting on the first ring presses it upon the triangular ring which presses it upon the
other ring causing thein both to close to the rod working within. Only two rings
can be used in a set, one triangular; or one ring can be used of a right angular
triangular shape having a thin metal ring placed at the back or between the metal
ring and the fibrous material, this ring is also cut in several places and tongue pieces
fitted in the joints. The action of this ring is that any pressure passing will be
forced to the back of the ring between it and the thin metal ring forcing the outer
ring against the rod, this ring like the others, is held in position by the fibrous or
elastic material. The fibrous material is plaited or woven into tape or ribbon of
required width several are placed together and sewn to size required, placed on the
sides of the rings to keep them in position so that they can be placed into a
stuffing box.
Dated this 17th day of November 1892.
COMPLETE SPECIFICATION.
Improvements in Packing for Stuffing Boxes of Steam Engines,
Pumps, and other Mechanical Appliances.
JAMES BURAL BURRELL 47 Eldon Road Riverside Cardiff County of
Glamorgan Marine Engineer do hereby declare the nature of this invention and
in what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement :-
This improved packing is for the purpose of keeping a stuffing box perfectly
tight with a small amount of friction and to resist high pressure. It (the packing)
is composed of several materials such as metal and a fibrous substance, hemp, flax,
cotton, asbestos, jute or grass, separate or two or more combined, or a fibrous
material, and india rubber vulcanized can be used. The fibrous or elastic material
is for the purpose of keeping the metal in position. The metal is in the form of

page_text: cut rings, two or more being used in each ring or turn of packing. In a set of three
metal rings, the centre one is of a triangular or wedge shape, the other two being
nearly square form except where they join the triangular or centre ring, that side
is made to fit upon the ring: these rings are cut in several places and there can be
slots made in the ends of the pieces and tongue pieces fitted or pieces can be fitted
on the top of each cut, for the purpose of preventing any pressure, passing through
the space left by the cut. Several sets of rings or turns of packing are used
The action of
together, regulated by the size of ring and depth of stuffing box.
these rings is, when placed in a stuffing box the pressure acting on the first ring
presses it upon the triangular or wedge shape ring which presses upon the other
ring causing them both to close to the rod working within, only two rings can be
used in a set, one triangular or wedge shape or one ring can be used of a right
angular triangular shape, having a thin metal ring placed at the back or between
the metal ring and the fibrous material, this ring is also cut in several places, and
tongue pieces fitted in the joints. The action of this ring is, that any pressure
passing will be forced to the back of the ring, between it and the thin metal ring
forcing the outer ring against the rod; this ring like the others, is held in position
by the fibrous or elastic material. The fibrous material is plaited or woven into
tape or ribbon of required width, several are placed together and sewn to size
required, placed on each side of the metal rings to keep them in position so that
they can be placed into a stuffing box. The metal rings can have small groves cut in
them on the sides facing the rods.
DESCRIPTION OF DRAWINGS,
Fig. No. 1 is a half ring of the packing having three cut metal rings, the centre
one ✗ of a triangular or wedge form, the other two B B nearly square form. K is
a small grove cut in the ring. U the fibrous material.
Fig. No. 2 is a half ring of the packing having two cut metal rings. Othe
triangular or wedge shape ring. L the ring fitting on the triangular or wedge
shape ring. U the fibrous material.
Fig. No 3 is a half ring of the packing having one ring R of a right angular
triangular form shewing the 'tongue pieces and the thin metal ring V. U the
fibrous or elastic material keeping the rings in position. Ka small grove.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declair that what
I claim is :-
1st. The cut metal rings in the set of three, the centre one being triangular or
wedge form, the other two fitting on each side of it. Substantially as and for the
purpose herein described.
2nd. The cut metal rings in a set of two, one being of a triangular or wedge
shape, the other ring fitted on to it, on one side. Substantially as and for the
purpose herein described.
3rd. The cut, metal ring of a right angular triangular form with the tongue
pieces fitted. The thin metal ring placed between the ring and the fibrous or
elastic material. Substantially as and for the purpose herein described.
Dated this 27th day of July 1893.
JAMES BURAL BURRELL.