Improvements in Packings for Engines.
Year: 1888

page_text: Date of Application, 11th Sept., 1888
Complete Specification Left, 11th June, 1889-Accepted, 13th July, 1889
PROVISIONAL SPECIFICATION.
Improvements in Packings for Engines.
1, HENRY GORDON SMALL of Poplar House, Wilmslow in the County of Chester,
Manufacturer, do hereby declare the nature of this invention to be as follows:--
This Invention relates to Packings for Engines and has for its object to secure
greater durability especially when the packing is used for engines in which very high
pressure steam is employed.
These Improvements consist in the construction of the packing in such a manner
that a flexible metallic casing surrounds and encloses a suitable core. The flexible
metallic casing consists of soft or easily flexible metallic wires braided into a tubular
form, or interwoven and subsequently made up in a tubular form or casing. The core
may consist of asbestos fibre with which there may be mixed a suitable grease,
soapstone, plumbago, or other material ordinarily used for like purposes.
Dated this 10th day of September 1888.
WILLIAM E. HEYS,
Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Packings for Engines.
I, HARRY GORDON SMALL of Poplar House Wilmslow in the County of Chester,
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 :-
This Invention relates to packings for steam engines and it has for its object to
secure greater durability especially when the packing has to be used for engines in
which steam having a very high pressure is employed.
These Improvements consist in the construction of the packing in such a manner
that a flexible metallic casing surrounds and encloses a suitable core. The flexible
metallic casing consists of soft or easily flexible metallic wires braided into a tubular
form or interwoven and subsequently made up in a tubular form or casing. The
core may consist of asbestos fibre with which there may be mixed a suitable grease,
soapstone, plumbago, or other material ordinarily used for like purposes.
In the usual course of manufacture prefer to make up the fibrous part of the
packing in the ordinary manner from flax, cotton, or asbestos yarn charged with
the usual or any suitable lubricating and preservative compounds. This fibrous
packing is then encased or surrounded with soft or flexible metallic wires which are
applied and interwoven by means of an ordinary braiding machine. The packing
may be made to assume any final cross section which may be desired, by compressing
the round packing first formed in suitable moulds.
In the accompanying drawing which represents a perspective view of one form of
the packing made according to these Improvements, A is a flexible metallic casing,
which consists of a surrounding of wires braided thereon; B is the fibrous part
of the packing enclosed within the metallic casing and constructed in the ordinary
manner; and C is an indiarubber core. The packing represented is made in a
cylindrical or circular form in the first place and is thereafter compressed in a mould
to the square form shown in the drawing.
:
The metallic casing instead of being braided upon the packing may be formed
from a sheet or strip of metallic gauze which may be wound upon or he cemented, pinned.
stitched, or otherwise suitably secured around the packing so as to completely
envelope it.

page_text: 1 desire it to be understood that I do not limit myself to any shape in cross section
of the packing, and that I do not claim anything in or relating to the part of the
hereinbefore described packing which is included within the metallic casing or
envelope.
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 :-
In engine packings, a metallic casing or surrounding constructed and arranged
substantially as hereinbefore described.
Dated this 4th day of June A.D). 1889
WILLIAM E. HEYS,
Agent for the Applicant.

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