Improvements in Semi-metallic Packing for the Stuffing Boxes of Steam Engines, and for other purposes.
Year: 1896

page_text: Date of Application, 7th Jan., 1896
Complete Specification Left, 28th Sept., 1896-Accepted, 21st Nov., 1896
PROVISIONAL SPECIFICATION.
Improvements in Semi-metallic Packing for the Stuffing Boxes of
Steam Engines, and for other purposes.
JESSE KIRKMAN Manufacturer of Steam Packing 4 Park Road Chorley
Lancashire, do bereby declare the nature of this invention to be as follows:-
This improved packing consists of a tuhe caseing or envelope composed of
braided or knitted cotton or other fibrous material, a central or internal space being
left which space may be filled in solidly with one strand or several strands of
fibrous material and fine metal borings or turnings preferably brass or some other
soft metal.
This packing may be used as above described or it may form a central core
around which another casing or covering may be braided, the space between the
cover or casing and the core to be filled in with fine soft metal borings or turnings
preferably brass and this operation may be repeated until the packing has attained
the required size.
This packing also may be used in the above form or the said packing may be
encased in a cover or coverings by winding or wrapping round it in a spiral form
strips of filletings of woven fibrous material with or without a coating of india
rubber compound or with or without an insertion of wire webbing or I may encase
with filletings as above described, a core of fibrous material either with or without
unctious or lubricative substances.
This packing is applied in the usual manner either by coiling it round the piston
or other rod or it may be cut into suitable lengths and applied in the form of a
ring or rings.
Dated this 6th day of January 1896
JESSE KIRKMAN.
Improvements in Semi-metallic Packing for the Stuffing Boxes of
Steam Engines, and for other purposes.
I JESSE KIRKMAN of 4 Park Road Chorley Lancaster Manufacturer 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 invention has for its object improvements in semi-metallic packing for the
stuffing boxes of steam engines and for other purposes, and consists of a tube,
casing or envelope composed of braided, or knitted cotton or other fibrous material
the central or internal space being left which may be filled in solidly with one
strand or several strands of fibrous material and fine metal borings or turnings
preferably brass or some other soft metal.
This packing may be used as above described or it may form a central core
around which another casing or covering may be braided, the space between the
cover or casing and core to be filled in with fine soft metal borings or turnings

page_text: preferably of brass and this operation may be repeated until the packing has
attained the required size.
In order that my invention may be more clearly understood I have appended
hereunto a sheet of drawings.
Figure 1 is a longitudinal part section.
Figure 2 is a section on line 1-2.
Figure 3 is a longitudinal part section of a modification and
Figure 4 is a similar section of another modification.
The packing is formed of a braided or knitted cotton or fibrous material tube,
casing or envelope A the internal space being filled up solid with one strand of
fibrous material B as seen in Figures 1 and 2 or of several strands B as seen in
Figure 3 combined with which I use fine metal borings or turnings C preferably of
brass or any other soft metal.
It will be understood that packing made as above described may be used in that
form or this may simply form a central core upon which any thickness of packing
may be built up as seen in Figure 4. Outside the envelope or casing A another
such envelope may be added the space between being filled with the fine metal
borings or turnings C this being repeated until the desired size is attained.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is:-
Improvements in semi-metallic packing consisting of the combination of a casing
or covering of braided or knitted fabric with fine metallic turnings or borings of
soft metal and a strand or strands of fibrous material substantially as aud for the
purpose herein set forth and described.
Dated this 26th day of September 1896.
JESSE KIRKMAN.