IMPROVEMENTS IN INDIA RUBBER HOSE OR FLEXIBLE TUBING
Year: 1884

page_text: I ISAAC BLUE HARRIS of Castle Mills Fountainbridge Edinburgh do hereby
declare the nature of my Invention for "IMPROVEMENTS IN INDIA RUBBER HOSE
OR FLEXIBLE TUBING " to be as follows:-
The Invention relates to that description of india rubber hose or tubing in which
brass or other metal wire cloth is employed either wholly or partially instead of
canvas or other textile fabric and consists in surrounding said wire cloth when in
position in the hose with a coil of iron or other wire (such as is used inside of
suction hose). This coil of wire surrounding the wire cloth externally prevents
an important practical difficulty experienced with hose constructed with wire cloth.
The pieces of wire cloth used in making such hose must be cut from the web
diagonally across its width and as a consequence the hose when under internal
steam or hydraulic pressure is liable to enlarge in diameter inconveniently but by
the use of the external coil of wire this tendency is entirely overcome and the
utility of the hose is secured while its strength is very considerably increased.
Dated this 16th day of June 1884.
I, ISAAC BLUE HARRIS of Castle Mills Fountainbridge Edinburgh do hereby
declare the nature of my Invention for "IMPROVEMENTS IN INDIA RUBBER HOSE
OR FLEXIBLE TUBING" and in what manner the saine is to be performed to be
particularly described and ascertained in and by the following statement:-
The Invention relates to that description of india rubber hose or tubing in which
brass or other metal wire cloth is employed either wholly or partially instead of

page_text: canvas or other textile fabric, and consists in surrounding said wire cloth, when in
position in the hose, with a coil of iron or other wire (such as is used inside of
suction hose). This coil of wire surrounding the wire cloth externally, prevents
an important practical difficulty experienced with hose constructed with wire cloth.
The pieces of wire cloth used in making such hose must be cut from the web
diagonally across its width and as a consequence the hose when under internal
steam or hydraulic pressure, is liable to enlarge in diameter inconveniently, but by
the use of the external coil of wire this tendency is entirely overcome, and the
utility of the hose is secured while its strength is very considerably increased.
In order that my said Invention may be most fully understood and readily
carried into effect I will proceed to describe the Drawings hereunto annexed,
DESCRIPTION OF THE DRAWINGS.
Figure 1 is a side elevation, and
Figure 2 is an end elevation of a portion of india rubber hose or flexible tubing
constructed in accordance with my Invention.
The interior of this hose or tube is made as described in the Specification of my
Patent N° 6066 in the present year, that is to say, the inner lining A is formed by
lapping a strip of sheet india rubber suitably prepared with sulphur around the
mandril, and joining it longitudinally and over the lining a strip of wire gauze B
covered with india rubber and sulphur is applied. The gauze is as described in my
former Specification prepared by passing it between rollers together with the india
rubber composition.
The strip is cut from the sheet of gauze in such manner that the wires composing
it may be oblique to the axis of the tube crossing the same at an angle of about
45 degrees. The width of the strip of gauze is by preference such as to pass two
or three or more times around the mandril according to the strength required for
the tube. Over the wire gauze there is then placed a coil of iron wire D.
The coil D is then covered with a strip of prepared sheet india rubber E, which
adapting itself to the convolutions of the wire D serves to keep this in place.
Finally the tube is enveloped with a strip of canvas F, which also is prepared with
india rubber composition in the usual manner.
The hose thus prepared is exposed in the usual manner to the process of
vulcanization-and-is-then-complete.
Hose thus prepared is capable of sustaining a very heavy pressure, and it is well
suited for the conveyance of steam.
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
First. The combination in india rubber hose or flexible tubing of the india
rubber covered wire gauze B and the supporting coil of wire D, kept in place upon
it by an outer covering, substantially as described.
Second. India rubber hose or flexible tubing, substantially as herein described.
CARPMAEL & Co.,
Agents for the Applicant.