Improvements in Packing for Stuffing Boxes.
Year: 1892

page_text: Date of Application, 13th Jan., 1892
Complete Specification Left, 11th Oct., 1892-Accepted, 3rd Dec., 1892
PROVISIONAL SPECIFICATION.
Improvements in Packing for Stuffing Boxes.
1, JOSEPH ALFRED FISHER, General Manager and Secretary of the United
Asbestos Company Limited of Dock House, Billiter Strect, in the City of London
do hereby declare the nature of this invention to be as follows:-
Various ways of forming packing for stuffing boxes with a flexible metallic core
or cores to give to the packing a certain amount of elasticity have before been
proposed.
According to my invention I form such cores of metallic wire (preferably
spring steel) braided or woven over a central strand of asbestos or without this
central strand, then asbestos braided or woven over the wire and so on with
alternate braidings or weavings of wire and thread to make up a core of the
required diameter. The core may,then be covered with asbestos threads braided
or woven either in a circular square oval or oblong or other form or be covered
with asbestos cloth wound around it. In place of forming the core of alternate
layers of braided or woven wire and asbestos the core may be formed of any desired
number of layers of braided or woven wire either with or without a central strand
of asbestos and then be covered with asbestos as above described.
In place also of using only one central core two or more parallel cores laid
together or in a row side by side may be used either at the central or at one side
of the packing as in the various forms of asbestos packing now commonly made.
Dated this 13th day of January 1892.
J. ALFRED FISHER.
COMPLETE SPECIFICATION.
Improvements in Packing for Stuffing Boxes.
I, JOSEPH ALFRED FISHER General Manager and Secretary of the United
Asbestos Company Limited of Dock House Billiter Street, in the City of London
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:
Various ways of forming packing for stuffing boxes with a flexible metallic
core or cores to give to the packing a certain amount of elasticity have before been
proposed.
According to my invention I form such cores of metallic wire (preferably spring
steel) braided or woven over a central strand of asbestos, or without this central
strand, then asbestos braided or woven over the wire and so on with alternate
braidings or weavings of wire and thread to make up a core of the required
diameter. The core may then be covered with asbestos threads braided or woven
either in a circular, square, oval or oblong or other form or be covered with asbestos
cloth wound around it. In place of forming the core of alternate layers of braided
or woven wire and asbestos the core may be formed of any desired number of
layers of braided or woven wire with, or without, a central strand of asbestos and
then be covered with asbestos as above described. In place of using, also, only
one central core, two, or more parallel cores, laid together, or in a row side by side,
may be used either at the centre or at one side of the packing as in the various
forms of asbestos packing now commonly made.

page_text: 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 :-
The combination of a metallic core or cores with asbestos as described.
J. ALFRED FISHER.