Improvements in Packings, Joint Washers, or the like for Pipe, Manhole, and other Joints.
Year: 1891

page_text: Date of Application, 2nd Mar., 1891
Complete Specification Left, 2nd Dec., 1591-Accepted, 2nd Jan.. 1892
PROVISIONAL SPECIFICATION.
Improvements in Packings, Joint Washers, or the like for Pipe,
Manhole, and other Joints.
I, JESSIE ETHEL TURNER, of 30 Litherland Road, and 41, Park Street,
Bootle, in the County of Lancaster, India Rubber Manufacturer and Merchant,
do hereby declare the nature of this invention to be as follows:-
This invention has for its object a species of packing adapted more especially
for making pipe, manhole or other joints where there are two Hat or abutting faces
to be jointed together. It is, however, also designed for packing pistons, stuffing
boxes, etcetera.
In carrying my invention into effect, I provide one or more cores of metal wire,
preferably of flexible material, such as lead or soft brass. These wires are
covered or surrounded with asbestos, and, while strengthening the packing, enable
it to be bent into the requisite shape. The asbestos and wire cores are covered
by a thin casing of india rubber or like material, which is adapted to give to the
packing great elasticity and at the same time protect the asbestos from the
action of water. A packing thus formed is not affected by heat or cold, and
does not deteriorate by keeping, and, being soft and pliable. adapts itself to
irregularities of surfaces, and will withstand great pressure. If desired, the wires
aforesaid may be omitted.
Dated this 28th day of February 1891
WM. P. THOMPSON & Co.,
Of 6, Lord Street, Liverpool, Patent Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Packings, Joint. Washers, or the like for Pipe,
Manhole, and other Joints.
I, JESSIE ETHEL TURNER of 30 Litherland Road, and 41 Park Street, Bootle
in the County of Lancaster, India Rubber Manufacturer and Merchant, 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:-
This invention has for its object a species of packing adapted more especially
for making pipe, manhole or other joints where there are two flat or abutting
faces to be jointed together. It is, however, also designed for packing pistons,
stuffing boxes, etcetera.
In carrying my invention into effect, I provide one or more cores of metal wire,
preferably of flexible material, such as lead or soft brass. These wires are covered
or surrounded with asbestos, and the wires while strengthening the packing, enable
it to be bent into the requisite shape. The asbestos and wire cores are covered
by a thin casing of india rubber or like material, which is adapted to give to the
packing great elasticity and at the same time protect the asbestos from the action
of water. A packing thus formed is not affected by heat or cold, and does not
deteriorate by keeping, and, being soft and pliable, adapts itself to irregularities
of surfaces, and will withstand great pressure.
In the accompanying drawings,
Figure 1 is an elevation (partly in section) of a joint ring; and
Figure 2 a cross section.

page_text: cores being bent to the required shape,-and-while sufficiently flexible to enable
them to be bent into shape by the hand, are strong enough to resist being bent
out of shape by pressure in forming the joint. The asbestos is fastened in position
round the cores by twine, yarn or asbestos thread and interlaces the respective
layers of asbestos. For high pressure steam joints; however, lead or other suitable
metal wire is used for the purpose. The asbestos is covered or saturated with a
solution of india rubber C. The packing thus formed is elastic and allows of
expansion and contraction of the joint.
I have shewn and described the manner in which I form my joint washers at
the present time, but it must be understood that once given the general idea,
slight modifications may be made without departing from the invention; for
example, the wires A may be surrounded by cotton yarn or other textile material,
instead of asbestos.
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 improvement in packings, joint washers, or the like which consists in
forming them with a core or cores of metal wire such as lead, or soft brass,
whereby the packing is strengthened while enabling it to be bent into the requisite
shape.
2. Forming packings, joint washers or, the like, of a core or cores of metal
wire, such as lead, brass, or other flexible or springy metal, covering said rings
with asbestos, cotton yarn or other fibrous or textile material, and coating the said
material with a solution of india rubber substantially as described.
Dated this 2nd day of December. 1891.
WM.IP. THOMPSON & Co.,
Of Liverpool, Manchester, Nottingham; and London, Patent Agents.