Improvements in Flexible Hose, suitable for Containing and Transmitting Steam and Hot Fluids.
Year: 1895

page_text: Date of Application, 8th May, 1895
Complete Specification Left, 8th Feb., 1896-Accepted, 14th Mar., 1898-
PROVISIONAL SPECIFICATION.
Improvements in Flexible Hose, suitable for Containing and
Transmitting Steam and Hot Fluids.
I FRANK REDDAWAY of the Firm of F. Reddaway and Company Limited, of
Cheltenham Street, Pendleton, in the County of Lancaster, Manufacturers of
Machine Belting and IIose, do hereby declare the nature of this invention to be as
follows:-
My said invention relates to flexible hose for use as steam tubing or for
conveying hot fluids. The chief object of my invention is however to enable
flexible hose to withstand the destructive effects of the high temperatures incidental
to the use of steam for example under high pressure. At present such flexible
hose is built up of successive layers of canvas or canvas and rubber, the interior
of the hose baving a ling of rubber. This rubber soon deteriorates under high
temperatures and the steam suon makes its way to the canvas layers which are
thereby burned and lose then nature so that the tubing is quickly weakened
and ruptured.
According to my invention I provide a backing of asbestos or othot smtably
flexible heat resisting or non-combustible material between the rubber lining and
the canvas layers The consequence is that the cauvas is protected from the
destructive effects of the high temperature of the steam and the durability of the
hose is much increased. At present I consider asbestos cloth to be the most
suitable material from which to form this protecting layer but any other heat
resisting or non-combustible fibre, material or natural product might be used to
effect my purpose.
The hose might be amoured or protected or strengthened by external metallic
coils o it might be used without such external protecting and strengthening
incans.
Dated the 7th day of May
E. K. DUTTON & Co.,
5 John Dalton Street, Manchester, Agents.
COMPLETE SPECIFICATION.
Improvements in Flexible Hose, suitable for Containing and
Transmitting Steam and Hot Fluids.
I FRANK REDDAWAY of the Firm of F. Reddaway and Company Limited, of
Cheltenham Street, Pendletou, in the County of Lancaster, Manufacturers of
Machine Belting and Hose, 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 and accompanying drawings:-
My said invention relates to flexible hose for use as steain tubing or for
conveying hot fluids. The chief object of my invention is however to enable
flexible hose to withstand the destructive effects of the high temperatures
incidental to the use of steam for example, under high pressure. At present such
Do31

page_text: flexible hose is built up of successive layers of canvas or canvas and rubber, the
interior of the hose having a Iming of rubber. This rubber soon deteriorates
under high temperatures and the steam soon makes its way to the canvas layers
which are thereby burned and lose their nature so that the tubing is quickly
weakened and ruptured.
According to my invention I provide a backing or interposed layer of asbestos
cloth or fibre between the rubber lining and the canvas layers. The consequence
18 that the canvas is protected from the destructive effects of the high temperature
of the steam and the durability of the hose is much increased.
The drawing on the accompanying sheet is a cross sectional view of a portion of
flexible tubing made in accordance with my invention. The inner lining of rubber
15 marked A
The canvas or canvas and rubber layers of which the tubing 1
composed or built up are marked B. The thickness of asbestos cloth or libre
interposed between the rubber and canvas or canvas and rubber layers 19 mai ked C.
This preservative backing or thickness C is composed of wrappings of asbestos
cloth or hbic. The said protecting backing C shields the canvas layers B from the
destructive effects of the heat of the steam or other hot fluid contained in the
tubing. Even should the internal rubber lining A become entely destroyed,
the asbestos would remain to shield the canvas layers.
The hose might be armoured, protected or strengthened by external metallic
coils on it might be used without such external protecting and strengthening
means.
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 ie.
In flexible hose or tubing of the indicated nature the lining, backing, layer or
thickness of heat resisting and non-combustible material adapted to protect
the mam thickness or canvas or canvas and rubber layers of the hose from the
destructive effects of the high temperature of the fluid contents of the tubing
substantially as described.
Dated this 5th day of February 1896.