Improvements in Packing for Stuffing Boxes.
Year: 1887

page_text: Date of Application, 28th Jan., 1887
Complete Left, 27th Sep., 1887
Complete Accepted, 28th Oct., 1887
Improvements in Packing for Stuffing Boxes.
I JOSEPH THOMAS DAVIS. of Coborn Road, Bow, London, in the County of
Middlesex, Ropemaker, do hereby declare the nature of my invention to be as
follows:
My packing is made of suitable metal drawn out into wire, combined with, Hemp,
Flax, Cotton, or any other suitable vegetable fibre.-I first form a core of such fibre,
and outside this I twist, braid, plait or weave, a wire or wires made of suitable metal,
forming a case or covering for same.--I then twist, braid, weave, or plait, another
covering of the fibre, and then another covering of the wire, these operations being
repeated alternately until the required thickness is formed, each twist braid or plait
of the Hemp, Flax Cotton or other vegetable fibre used being steeped in tallow, oil, or
other lubricant, as may be thought desirable.
I then wind the packing so prepared round mandrils of various sizes, as may be
required and place same in Cylinders prepared to receive it, and compress the packing
by means of a hollow piston, into any desirable thickness by hydraulic power or other
ineans this process also compressing the packing into square sections, and forming
rings ready for use, the various sizes being made in suitable lengths enabling an
engineer to cut off sufficient for the depth of his stuffing boxes.-These lengths will be
of spiral or spring like shape and by taking one end and winding it round the piston
or other rod to be packed it will enable the Engineer to push it straight into the
Stuffing box, the packing owing to its spring-like shape having a tendency to grip the
rod tight. This piston or other rods will then work against a metallic surface or
substance, and the vegetable fibre used, having been soaked in a suitable lubricant,
will supply the necessary lubrication, the lubricant collecting itself into the smalĺ
recesses formed by the plaits.
When finished the packing is placed on wooden rollers to allow it to be more casily
cut the requisite length.

page_text: Improvements in Packing for Stumng Boxes.
I, JOSEPH THOMAS DAVIS of Coborn Road, Bow, London, in the County of
Middlesex, Ropemaker, 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 :-
My packing is made of suitable metal drawn out into wire, combined with Hemp,
Flax, Cotton, or any other suitable vegetable fibre.
I first form a core of such fibre and outside this I twist, braid, plait, or weave a
wire or wires made of suitable metal forming a case or covering for same.
I then twist, braid, weave, or plait, another covering of the fibre, and then another
covering of the wire these operations being repeated alternately until the required
thickness is formed each twist braid weave or plait of the Hemp, Flax, Cotton, or
other vegetable fibre used being steeped in tallow oil or other lubricant as may be
thought desirable.-I then wind the packing so prepared round mandrils of various
sizes, as may be required and place same in Cylinders prepared to receive it, and
compress the packing by means of a hollow piston, into any desirable thickness by
hydraulic power or other means this process also compressing the packing into square
sections, and forming rings ready for use, the various sizes being made in suitable
lengths enabling an Engineer to cut off sufficient for the depth of his stuffing boxes.
These lengths will be of spiral or spring-like shape and by taking one end winding it
round the piston or other rod to be packed it will enable the Engineer to push it
straight into the stuffing box the packing owing to its spring-like shape having a
tendency to grip the rod tight. The piston or other rods will then work against
a metallic surface or substance and the vegetable fibre used having been soaked in a
suitable lubricant will supply the necessary lubrication, the lubricant collecting itself
into the small recesses formed by the plaits, twists, braidings, or weavings.
When finished the packing is placed on wooden rollers to allow it to be more easily
cut the requisite lengths.
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 improved packing substantially as and for the purpose described.
2. A packing with alternate layers of twisted, braided, plaited, or weaved Hemp,
Flax, Cotton, or other vegetable fibre steeped in a suitable lubricant, and twisted,
braided, plaited, or weaved wire of suitable metal substantially as and for the purpose
described.
3. A packing compressed in Cylinders and made into square sections substantially
as and for the purpose described.
4. A packing made into spiral rings or rings of spring like form substantially as
described.
Dl
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1037