similar Parts of Engines and Machines.
Year: 1885

page_text: similar Parts of Engines and Machines.
We, WILLIAM TERRELL, of Canons Marsh, in the city and county of Bristol,
rope manufacturer, EDWARD TURNER, of Canons Marsh, aforesaid, engineer and
GEORGE SAMSON HOWATSON of 20, Bucklersbury, in the county of Middlesex,
engineer, do hereby declare the nature of this invention to be as follows :—
This invention consists in the use of lead wire in the composition of packing
for the stuffing boxes of cylinders and other like or analogous parts of steam,
hydraulic, gas and other engines, motors or machines.
The wire, prior to being incorporated with flax, hemp, jute, manila or other
fibrous substance or substances suitable for employment in the manufacture of
packing, is itself separately envelopped in a covering of flax, hemp, jute or other
similar or suitable substance, the covering being braided, woven or otherwise formed
around the wire. Liability of the wire to become severed in the subsequent process
of wearing or braiding it with the substance or substances employed there with in
the composition of the packing is by the employment of the covering aforesaid
obviated.
Wearing or braiding the covered wire and the fibrous or other suitable substance
or substances used in the composition of the packing is effected in a machine such
as is usually employed for weaving or braiding ropes and cordage, and in other
like operations.
Lubricants are introduced into the packing as ordinarily.

page_text: similar Parts of Engines and Machines.
---
We, WILLIAM TERRELL, of Canon's Marsh, in the city and county of Bristol,
rope manufacturer, EDWARD TURNER, of Canon's Marsh, aforesaid, engineer, and
GEORGE SAMSON HOWATSON, of 20, Bucklersbury, in the county of Middlesex,
engineer, 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 consists in the use of lead in the composition of packing for
the stuffing boxes of cylinders and other like or analogous parts of steam, hydraulic,
gas and other engines and machines.
The lead is employed in the form of filaments or wires, which, before being
braided or woven with the flax, hemp, jute or other substance or substances with
which they are to be combined to form packing, are separately coated with flax,
hemp, jute or other similar or suitable substance. This envelope is braided or
woven or otherwise formed around the filaments or wires of lead which are thereby
enabled to withstand the strain to which they are subsequently subjected in the
braiding machines in which the packing is braided or woven, and which machines
are of the kind usually employed for weaving or braiding packing, ropes and
cordage.
As is usual, suitable lubricants, as, for instance, French chalk, oil, black lead or
plumbago are introduced into the packing in the process of manufacture.
By the introduction of lead into packing, according to this invention, the
packing produced combines a high degree of durability with ductility. As a result
of its comparative yielding nature, there is less friction with its use than with
packing into the composition of which brass or other similar. wire enters, and,
cousequently, there is less liability to injure piston or other similar rods or plungers
having reciprocating motion through the packing.
In high pressure engines where the movements of the piston rods are rapid, and
the glands are frequently screwed up, these properties are of enhanced value.
Having now particularly described and ascertained the nature of this inven-
tion, and in what manner the same is to be performed, we declare that what
we claim is:—
In the manufacture of packing for the stuffing boxes of cylinders and other
like or analogous parts of steam, hydraulic, gas and other engines and machines
the use of filaments or wires of lead, coated with an envelope of flax, hemp, jute,
or other suitable substance, such filaments or wires so coated being subsequently
woven or braided with the strands of flax, hemp, jute or other suitable constituent
or constituents to form the packing, substantially as hereinbefore described.
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Au
"
"
3000