Improvements in the Manufacture of Packing Material, and in the Construction therefrom of Steam, Air, and Water Tight Joints.
Year: 1893

page_text: Date of Application, 2nd Nov., 1893-Accepted, 2nd Dec., 1893
COMPLETE SPECIFICATION.
Improvements in the Manufacture of Packing Material, and in the
Construction therefrom of Steam, Air, and Water Tight Joints.
GEORGE ORD RIMINGTON, Sheffield House, Carlisle, in the County of
Cumberland, Engineers, Furnisher 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 relates to the manufacture of packing material adapted to be
placed between metal surfaces, for the purpose of forming steam and air tight
joints, and in an improved method of constructing joint washers from the aforesaid
packing material. In constructing packing material according to this my invention,
1 form the body of some more or less rigid impervious material, which said body is
afterwards covered with an outer coating of asbestos fibre, which said fibre, is
preferably employed in the form of yarn and may be used with or without
admixtures and combinations with other material. In forming pipe joints, man
hole joints, and similar packings, the body is preferably made of a shape corre-
sponding to the surfaces between which it is to be packed. This body or shape is
afterwards covered with the asbestos yarn, which may be woven, lapped, overspun,
or braided upon the shape or body. One method of constructing a joint washer
according to this my invention is to take a rigid body shape, which may be formed
of tin, lead, copper, zinc, or other suitable materials. This said body shape is then
lapped, overspun, or otherwise covered with asbestos yarn as herein before
described.
•
Or may take several washers, formed from thin sheet metal, as before
described. Some or all of these washers may be corrugated in radial or con-
centric lines. Washers of india rubber or other suitable material may be placed
between these metal washers, and the whole may be bound together by asbestos
yarn in the manner. before described.
.
Another method of constructing a joint washer according to this my invention is
to form the body of rings or shapes differing in size, so that the rings or shapes
are capable of being laid on a flat surface one inside the other. These said rings
or shapes may be covered with india rubber if desired or the metal rings or shapes
may be used with india rubber rings laid between them. The entire series of
shapes may be then bound together by asbestos yarn as herein before described.
Such a joint will consist of a body of metal rings or shapes covered with, or
alternated with indin rubber and enclosed in a wrapping or covering of asbestos
yarn.
In constructing a round or square jointing cord according to this my invention,
I take a metal tube or wire to form the body or core. These tubes or wires may
be enclosed in, or alternated with india rubber or other material and afterwards
covered by lapping or overspinning as herein before described.
To construct a flat or rectangular section joint cord I place soveral tubes or
wires of metal alongside each other. These wires or tubes may be covered with
or alternated with cords of india rubber or other suitable material. The whole
are then bound together by lapping or overspinning with asbestos yarn as herein
before described. This cord or rectangular strip packing material forms a ready
means of constructing any shaped joint required by cutting off a length and
bending it to the required shape. The meeting ends of the strip may be levelled
off and the yarn.overlapped by hand.
I do not confine myself to the exact shapo or arrangement of the materials
combined as herein described to form a body or core, but I may arrange any or all
of the materials for this purpose in any desired combination the whole being

page_text: afterwards enveloped or bound together by asbestos yarn woven, braided, lapped,.
or overspun as herein before.described.
Having now particularly described and ascertained the nature of this my said
invention, and in what manner the same is to be performed, I declare that what I
claim is :-
=
In a packing cord or washer for use as a steam resisting joint, the employment
of a more or less rigid body, or core, which is afterwards covered or enveloped
with asbestos yarn as herein before described.
Dated this 1st day of November 1893.