IMPROVE- MENTS IN INDIA RUBBER HOSE OR TUBING to be as follows:
Year: 1885

page_text: I, ISAAC BLUE HARRIS of Castle Mills, Fountainbridge, Edinburgh India
Rubber Manufacturer do hereby declare the nature of my invention for "IMPROVE-
MENTS IN INDIA RUBBER HOSE OR TUBING to be as follows:--
"
These improvements relate to hose made with metallic wire cloth, with india
rubber in combination therewith, and consist in placing inside the wire cloth so
employed, or between an outside and inside layer or layers of such wire .cloth, a
spiral coil of copper or other suitable metal wire. Such hose can be used with
safety as suction hose; and is not liable to kink or double together, as hose made
of wire cloth without an internal coil of wire is very liable to do, even when
moderately bent. The coil of wire so placed, further reduces the liability of
collapsing, a matter of considerable importance, as hose made with wire cloth,
without spiral wire, may be permanently injured by bringing the opposite sides or
walls of the hose together for the limit of elasticity of the wire cloth will be
thereby exceeded and the hose will not return again to the circular form.
coil of wire placed inside the metallic wire cloth hose, may or may not be
covered with india rubber, as heretofore when employed in hose made with
textile fabrics.
The
CARPMAEL & Co.,
Agents for the Applicant.

page_text: COMPLETE SPECIFICATION.
'Improvements in India Rubber Hose or Tubing.
I, ISAAC BLUE HARRIS of Castle Mills, Fountainbridge, Edinburgh India
Rubber 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 :-
These improvements relate to hose made with metallic wire cloth, with india
.rubber in combination therewith, and consist in placing inside the wire cloth so
employed, or between an outside and inside layer or layers of such wire cloth, a
spiral coil of copper or other suitable metal wire.
Such hose can be used with safety as suction hose, and is not liable to kink or
double together, as hose made of wire cloth without an internal coil of wire is very
liable to do, even when moderately bent. The coil of wire, so placed, further
reduces the liability of collapsing-a matter of considerable importance as hose
made with wire cloth, without spiral wire, may be permanently injured by bringing
the opposite sides or walls of the hose together, for the limit of elasticity of the
wire cloth will be thereby exceeded and the hose will not return again to the
circular form.
The coil of wire placed inside the metallic wire cloth hose, may or may not
be covered with india rubber, as heretofore when employed in hose made with
textile fabrics.
In order that my said invention may be most fully understood and readily carried
into effect I will proceed to describe more fully the manner in which I prefer to
conduct the manufacture.
I take a spiral coil of wire of suitable diameter and having placed a loosely
fitting mandril within it I lap around the spiral and mandril a strip of sheet
india rubber suitably prepared with sulphur. I joint the strip into a tube with an
overlapping longitudinal joint. I then take wire gauze which has been prepared
in the manner described in the specification of a former patent granted to me
No 6066 in the year 1884 that is to say by passing the gauze between rollers
together with india rubber and sulphur composition I use a strip of such gauze of
a width to pass two or three times around the mandril and I lap it around with
the edges parallel to the axis of the tube. Over the gauze I supply another strip
cut from a sheet of prepared india rubber and with this I cover the wire gauze
joining it also with a longitudinal joint.
Hose thus prepared is exposed in the usual manner to the process of vulcanization
and is then complete.
Sometimes I apply to the mandril an inner covering of prepared sheet india
rubber before placing the coiled wire upon it; the wire then becomes enclosed
between the two surfaces of india rubber and in the finished hose it is protected
from contact with the liquid or fluid passing through the pipe.

page_text: Hose made in accordance with my present invention is more suitable for some
uses than hose made as described in the specification of a former patent granted to
me No 9032 in the year 1884 where a coil of wire is applied outside of the lapping
of wire gauze.
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 combination in india rubber hose or flexible tubing of an interior coil of wire
and an exterior covering of wire gauze substantially as described.