Improvements in Packing for the Glands and other Parts of Steam and other Engines and for Use in other Apparatus.
Year: 1886

page_text: Date of Application, 2nd Dec., 1886.
Specification Accepted, 21st Jan., 1887.
Improvements in Packing for the Glands and other Parts of Steam
and other Engines and for Use in other Apparatus.
I, WILLIAM LOCKWOOD, of Eagle Foundry, Lord Street, Park, Sheffield, in the
County of York, Engineer, do hereby declare the nature of the 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 packing for the glands or stuffing boxes,
pistons, piston rods and other parts of steam, water, air and other fluid pressure
engines, and for use in hydraulic pumps and other apparatus or appliances where
packed joints are required to be made, for various useful purposes.
The Invention consists, essentially, in manufacturing the packing by enclosing
within a metallic tube or tubular or hollow part, or within and between a series of two
or more concentric or equivalently disposed or surrounding metallic tubes or tubular
or hollow parts, a supporting packing or filling of cotton, asbestos, hemp, canvas,
india rubber or other suitable fibrous or flexible material, so that the metallic packing
will be efficiently supported by the contained packing or filling, and the latter will be
efficiently protected by the metallic enclosure.
The said tubular or hollow enclosing part or parts may be made entire or by eylin-
drically or helically bending a skelp or band of metal so as to form a complete
envelope and it or they may be made of any metal suitable for the purpose to which
the packing is intended to be applied, and it or they may be made of any required
size and thickness, and of a cylindrical, oval, square, angular or other cross-section
suitable to the stuffing boxes or to the parts or places to which the packing is intended
to be applied.
The said supporting packing or filling may be simply packed into such containing
metallic part or parts, or it may be woven, twisted or otherwise formed or compounded
of a solid, tubular or appropriately shaped hollow formation, and drawn or otherwise
passed into, or into and between, such metallic tubular or hollow part, or parts, in
such a manner as to completely fill the same, and to keep the adjacent tubes (if used)

page_text: from contact with each other, and so as to afford an efficient inner elastic support to
each of such tubes or tubular parts.
The accompanying drawings illustrate different forms of the improved packing, and
different methods of constructing the same, but it will be obvious that the improved
principle of constructing the packing hereinbefore referred to can be carried out in
other equivalent ways. Figures 7 to 12 are longitudinal sections respectively of
Figures 1 to 6 on the plane indicated by the line, a—, looking in the direction of the
arrow, c.
On the accompanying drawings
1. represents the outer, or inner and outer, metallic tubes or tubular or hollow parts,
and, 2. represents the inner supporting flexible packing.
The improved packing is applied to its intended purpose in a usual manner, depend-
ing upon the particular purpose to which it is to be applied.
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 :-
The manufacture of packing applicable for the purposes herein before indicated, by
enclosing within a metallic tube or tubular part, or within and between a series of two
or more concentric or equivalently disposed or surrounding metallic tubes or tubular
or hollow parts, a supporting packing or filling of cotton, asbestos, hemp, canvas,
india rubber, or other suitable fibrous or flexible material, substantially as hereinbefore
described.
DAY, DAVIES & HUNT,
321, High Holborn, London, W.C.,
Agents for the Applicant.