Improvements in Packings for the Glands of Steam and other Fluid Pressure Engines.
Year: 1884

page_text: Improvements in Packings for the Glands of Steam and other
Fluid Pressure Engines.
I, DONALD BARNS MORISON, of 9, South Crescent, Hartlepool, in the County of
Durham Engineer do hereby declare the nature of my said invention for " IMPROVE-
MENTS IN PACKINGS FOR THE GLANDS OF STEAM AND OTHER FLUID PRESSURE
ENGINES "to be as follows:-
My invention relates to improvements in the construction of packings for the
glands of steam and other fluid pressure engines and the invention consists in the
combination with the said packings of a number of metallic wires or metallic
spheres so arranged that on being subjected to compression they will displace each
other and force the material of which the packing is composed, or will themselves
be forced, against the rod working therein.
For the purpose of my invention the wires may be of any suitable section and
length and the wires or spheres may be arranged or placed in any suitable position
in the asbestos or other material of which the packing is composed, for instance
the wires or spheres may be arranged in rows on one side only or on both sides of
the asbestos or other material or they may be placed in the middle thereof.
When the wires are required to be in direct contact with the rod the wires and
the material in which they are embedded will be forced against the rod in the
manner hereinbefore described.
G. F. REDFERN,
4, South Street, Finsbury, London,
Agent for the Applicant.

page_text: Improvements in Packings for the Glands of Steam and other
Fluid Pressure Engines.
I DONALD BARNS MORISON, of 9 South Crescent, Hartlepool, in the county of
Durham Engineer, do hereby declare the nature of the said invention for
"JMPROVEMENTS IN PACKINGS FOR THE GLANDS OF STEAM AND OTHER FLUID
PRESSURE ENGINES and in what manner the same is to be performed to be
particularly described and ascertained in and by the following statement:-
"
-
My invention relates to improvements in the construction of packings for the
glands of steam and other fluid pressure engines and the invention consists in the
combination with the said packings of a number of metallic wires so arranged that
on being subjected to compression they will displace each other and force the
material of which the packing is composed against the rod working therein.
For the purpose of my invention the wires may be of any suitable section and
length and may be arranged or placed in any suitable position in the asbestos or
other material of which the packing is composed, for instance the wires may be
arranged in rows on one side only or on both sides of the asbestos or other material
with an outer covering of plaited asbestos or other suitable material or they may
be placed in the middle thereof.
In order to enable my invention to be fully understood I will proceed to describe
the same by reference to the accompanying drawing which represents various
forms of packings for the glands of steam and other fluid pressure engines con-
structed according to my invention. Similar letters in all the figures represent
similar or corresponding parts.
Figure 1 represents in cross section a rectangular form of packing in which the
metallic wires a, are arranged in rows on one side only of the asbestos or other
material b; in this arrangement either side, videlicet, that on which the wires a,
are placed or that on which the material b, is situated can be pressed against the
rod or the like; c, represents the plaited outer covering of asbestos or other suitable
material; figure 2 is a similar view to figure 1, but shewing the metallic wires a,
arranged in rows on two sides of the asbestos or other material b, the wires on one
side being of larger diameter than those on the other side; figure 3, is also a
similar view to figure 1 but shewing the metallic wires placed in the middle of the
asbestos or other material b; figure 4 represents in cross section a circular form of
packing with the wires placed in the centre in a similar manner to that shewn in
the rectangular form of packing illustrated in figure 3; figure 5 is a longitudinal
elevation and figure 6, a cross section of a piece of circular packing having the
metallic wires a, twisted into a spiral form as shewn by the dotted lines at figure 5
and arranged at intervals in the packing as shewn in figure 6; the outside portion
of the asbestos or other material is plaited or interwoven as at c, so as to form
a covering for the inner portion.
By this construction it will be evident that when the packings are subjected to
compression the wires a, will displace each other and will force the asbestos or
other material b, against the rod working therein thus preventing the material

page_text: of which the packing is composed being converted into a hard incompressible mass
by the action of steam or other fluid.
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 improved packings for the glands of steam and other fluid pressure engines,
such packings consisting in the combination with the asbestos or other material of
which the packings are usually made, of a number of metallic wires arranged
substantially in the manner and for the purposes hereinbefore described and repre-
sented in the various figures of the accompanying drawing.
Dated the 19th day of August 1885.
G. F. REDFERN,
4, South Street, Finsbury, London,
Agent for the Applicant.