Year: 1885

page_text: I HOWARD FIELD of N° 3 Tressillian Road St. Johns in the county of Kent
Engineer do hereby declare the nature of this invention to be as follows:-
The object is to provide à durable resilient and efficient packing easily manu-
factured for use in stuffing boxes and places where leakage or passage of fluid is to
be prevented, and where such packing is subjected to friction.
The invention consists essentially in the combination in a novel manner of
asbestos or other suitable cloth or woven material with strips of india rubber or
like elastic substance.
Under one modification. The cloth or woven material is lapped or made into a
roll of the required diameter: one or more strips of india rubber or elastic
substance of round, square, oblong, or other desired shape in cross section is then
placed alongside the roll of cloth or woven material and the lapping or coiling of
the said cloth or woven material is continued around the rubber strip or strips
and the before made coil of cloth or woven material until the two are firmly united.
The rubber or elastic substance gives the required resilience to the face of the
packing.
Under a second modification. The rubber is united to the roll by a covering of
textile fabric suitably disposed.
Under a third modification. Coiled packing is made with a core of two or more
rubber lengths of circular or similar shape in cross section.
J. T. KING,
Agent for the Applicant.

page_text: Improvements in Packing for Steam and other Engines.
I, HOWARD FIELD of Tressillian Road, St. Johns, in the County of Kent,
Engineer, do hereby declare the nature of the said invention and in what manner
the same is to be performed, to be particularly described and ascertained in and
by the following statement:-
The object is to provide a durable, resilient, and efficient packing easily manu-
factured for use in stuffing boxes and places where leakage or passage of fluid is to
be prevented and where such packing is subjected to friction.
The invention consists essentially in the combination in a novel manner of
asbestos or other suitable cloth or woven material with strips of india rubber or
like elastic substance.
Under one modification. The cloth or woven material is lapped or made into a
roll of the required diameter, one or more strips of india rubber or elastic substance
of round, square, oblong or other desired shape in cross section is or are then placed
alongside the roll of cloth or woven material and the lapping or coiling of the said
cloth or woven material is continued around the rubber strip or strips and the
before made coil of cloth or woven material until the two are firmly united. The
rubber or.elastic substance gives the required resilience to the face of the packing.
Under a second modification. The rubber is united to the roll by a covering of
textile fabric suitably disposed.
Under a third modification. Coiled packing is made with a core of two or more
rubber lengths of circular or similar shape in cross section.
DESCRIPTION OF THE DRAWINGS.
Figure 1. is a cross section of packing under the first modification of my
invention. Cloth or woven material is made into a roll a. pieces of elastic
substance b. are placed alongside the roll a and the rolling of the cloth is continued
both around the roll a. and elastic substance b. as shown at c.
Figure 2. is a cross section of packing under the second modification, here the
roll a and elastic pieces b. are united by a woven web or covering of textile
fabric d.,
Figure 3. is a cross section of a third modification of packing in which the elastic
pieces b. are in the centre of the coil of woven or textile material a.
I prefer that the elastic pieces b. should consist of india rubber piping as the
packing then has the advantage that when warm a slight pressure will displace the
piping and keep the packing in contact with the rod.
Having now particularly described and ascertained the nature of the said
invention, in such manner that others will be enabled to carry my improvements
into effect, I claim :-
First, The improvements in packing, herein set forth.

page_text: Second. The combination of asbestos or other suitable cloth or woven material
with strips of elastic substance substantially in the manner and for the purpose
set forth.
Third. The combination of the coil a. o. and strips b. substantially in the manner
and for the purpose set forth, under the first modification.
Fourth. The combination of the coil a strips b. and covering d. substantially as
set forth under the second modification.
Fifth. The combination under the third part of the strips b. and coil a. substan-
tially in the manner and for the purpose set forth.