IMPROVEMENTS IN THE MANUFACTURE of STEAM PACKING "
Year: 1883

page_text: LETTERS PATENT to John Vincent Taylor of Warrington in the County of
Lancaster for an Invention of "IMPROVEMENTS IN THE MANUFACTURE of
STEAM PACKING
"
PROVISIONAL SPECIFICATION left by the said John Vincent Taylor at the
Office of the Commissioners of Patents on the 21st July 1883.
JOHN VINCENT TAYLOR of Warrington in the County of Lancaster
MENTS IN THE MANUFACTURE OF STEAM PACKING
"
" IMPROVE-
This invention relates principally to the manufacture of that kind of "steam
packing" employed for packing the glands through which the piston rod of a
steam engine works, but it may also be employed with advantage in other positions
where a steam packing capable of resisting high pressure steam and a high
temperature, is required.
The invention consists principally in the combination with an india rubber core
packing (with either a solid or coiled core) of a casing made of asbestos cloth,
cemented thereon so as to form a complete covering or casing.
It has been found in practise that the outer canvas coating of the india rubber
core packing as heretofore.made was very liable to wear away owing to the
friction of the piston rod against its surface and that with high pressure steam at
a great temperature the india rubber core became rapidly deteriorated and
eventually destroyed and blown out.
And it will be found that by the use of my invention of combining therewith a
coating or casing of asbestos cloth which is almost indestructible the durability of
the core and its capability of resisting friction will be very considerably increased
and not only so, but the asbestos cloth being a non-conductor of heat will prevent
the destructive action of the high pressure steam upon the india rubber and the
packing will not be so liable to be destroyed and blown out of the gland as
heretofore.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said John Vincent Taylor in the Patent Office on the 21st January 1884.
JOHN VINCENT TAYLOR of Warrington in the County of Lancaster IMPROVE-
MENTS IN THE MANUFACTURE OF STEAM PACKING
This invention relates principally to the manufacture of that kind of "steam
packing" employed for packing the glands through which the piston rod of a
steam engine works, but it may also be employed with advantage in other positions
where a steam packing capable of resisting high pressure steam and a high
temperature is required.
The invention consists principally in the combination with an india rubber core
packing (with either a solid or coiled core) of a casing made of asbestos cloth,
cemented thereon so as to form a complete covering or casing.
It has been found in practise that the outer canvas coating of the india rubber
core packing as heretofore made was very liable to wear away owing to the
friction of the piston rod against its surface and that with high pressure steam at
a great temperature the india rubber core became rapidly deteriorated and
eventually destroyed and blown out. And it will be found that by the use of my
invention of combining therewith a coating or casing of asbestos cloth which is
almost indestructible the durability of the core and its capability of resisting
friction will be very considerably increased and not only so, but the asbestos clothi
being a non-conductor of heat will prevent the destructive action of the high
pressure steam upon the india rubber and the packing will not be so liable to be
destroyed and blown out of the gland as heretofore.
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 the improved manufacture of steam packing by the combination with an
india rubber core packing (having either a solid or coiled core) of a casing made of
asbestos cloth, cemented thereon so as to form a complete covering or casing as
hereinbefore described.
4
In witness whereof I the said John Vincent Taylor have hereunto set my hand
and seal this eighteenth day of January in the year of our Lord one thousand
eight hundred and eighty four
JOHN VINCENT TAYLOR. (L.S.)