Year: 1888

page_text: Date of Application, 9th Mar., 1898
Complete Specification Left, 8th Dec., 1888
Complete Specification Accepted 22nd Jan., 1839
I, JAMES WALKER of 4 America Square Minories London in the County of Middlesex
Engineer Furnisher do hereby declare the nature of this invention to be as
follows:-
The invention has for its object the manufacture of Gland Packing that will resist
the great heat of high pressed steam combined with great elasticity, for Triple ex-
pansion Engines I construct the Packing with Asbestos cloth woven with metallic
wire or strand. The cloth is dressed with plumbago or Talk, then folded in endless
folds up to the size required with the folds opening to the steam. The deep way of
the gland, the steam acting upon it to make it tight, after the cloth is folded to the
size required I take metal pins and drive them through the Packing from the side that
bears against the Piston Rod these studs or pins are put in in considerable numbers in
order to make the Packing as Metallic as possible while the wire and asbestos cloth
gives the packing a spring in the opposite direction by the pressure of the Gland
Cover.
The Packing may be made larger the deep way of the Gland.
The Packing may be put together with a solution of Rubber or other materials
most suitable for the purpose, to make it compact and handy. The Packing may be
made in long lengths or Rings with a square section.
The Packing may be made round by rolling up the cloth and wire, the pins or studs"
being driven through it in the same way all round. The Packing may be made with
asbestos cloth and wire gauze, the wires not being woven in the cloth. The pins or
studs may be sewn through the packing by machinery in a wavy form to act as a
spring the side way, the pins or studs may only partly go through the Packing.
The Packing may be plaited round or square with the studs or pins as before
described.
The Packing may be made of any other suitable material besides asbestos and may
also be made in layers of the same material as before described.

page_text: I JAMES WALKER of 4 America Square Minories London county of Middlesex,
Engineer & Mill Furnisher, do hereby declare the nature of my said 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 has for its object the manufacture of Gland-Packing that will resist
the great heat of high pressure steam combined with great elasticity for Triple
expansion Engines. I construct the Packing with Asbestos cloth woven with metallic
wire. The cloth is dressed with plumbago or tale, then it is folded in endless folds up
to the size required, larger the deep way of the gland, the folds opening to the steam
as in Fig. I after the Packing is folded to the size required. 1 take metal pins and
drive them through the packing; the head of the pins to come in contact with th erod
as shown at A. The pins may be put in any number or any position in order to make
the Packing as metallic as possible, while the wire and Asbestos Cloth give the Packing
a spring the other way, by the pressure the Gland cover.
The Packing may be made larger the deep way of the gland or not as necessity
requires, and it may be put together with a solution of rubber vulcanized, or other
material most suitable for the purpose to make it compact and handy.
It may be made spiral or in rings with square section or round as shown in Fig. II.
The Packing may be made with Asbestos or other material, with wire gauze or other
metallic material put between to produce the same result. The pins or wire may be
sewn through the packing in a wavey form to act as a spring, the side way or deep
way. The pins may not go right through the Packing. The Packing may be plaited
round or square.
The packing may be made of any kind of suitable material and may
also be made in layers and not in endless folds as before described.
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 :-
:-
1st. The folding in endless folds.
2nd. The metallic pins or wire.
3rd. The construction as described in drawings and specifications.