An Improvement in Armoured Hose.
Year: 1890

page_text: Date of Application, 4th Oct., 1890
Complete Specification Left, 4th July, 1891-Accepted, 8th Aug., 1891
PROVISIONAL SPECIFICATION.
An Improvement in Armoured Hose.
I, JOHN COCKBURN, Superintendent to the North British Rubber Company,
(Limited) Mechanical Department, Castle Mills, Edinburgh, do hereby declare
the nature of this invention to be as follows :—
This invention relates to armoured hose or tubing. Hitherto the armouring of
hose or tubing with wire by any known process has not prevented the elongation or
end pressure of the hose nor have any of the armouring processes secured any
direct appreciable protection against bursting and crushing. My improvement
consists in coiling on to the hose a plurality of wires or strands of wires in lieu of
the single wire hitherto applied, the said wires or strands being forced through a
die having a series of helical grooves or through a series of dies each having a
single groove and placed alongside each other at such intervals apart as will give
the desired pitch to the coils of armour. In this way the pitch of the individual
coils of wire is very great whilst the several coils are sufficiently close to each other
to give the required protection to the hose. Absolute resistance to elongation or
end pressure as well as to bursting is ensured and injury to the armour by crushing
is also avoided.
Dated the Third day of October 1890.
CRUIKSHANK & FAIRWEATHER,
62, St. Vincent Street, Glasgow, Agents.
COMPLETE SPECIFICATION.
An Improvement in Armoured Hose.
1, JOHN COCKBURN, Superintendent to the North British Rubber Company
(Limited) Mechanical Department, Castle Mills, Edinburgh, 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:-
This invention relates to armoured hose or tubing. Hitherto the armouring of
hose or tubing with wire by any known process has not prevented the elongation or
end pressure of the hose nor have any of the armouring processes secured any
direct appreciable protection against bursting and crushing. My improvement
consists as seen in side elevation at Figure 1 and in cross section at Figure 2 of
the annexed drawings in coiling on to the hose a plurality of wires or strands of
wires b in lieu of the single wire hitherto applied, the said wires or strands being
forced through a die having a series of helical grooves or through a series of dies
each having a single groove and placed alongside each other at such intervals apart
as will give the desired pitch to the coils of armour. Whilst any suitable con-
struction of coiling apparatus may be used it is preferred as most convenient for
the purposes of this invention to employ the armouring apparatus described and
In so
claimed in my Complete Specification Number 11245 dated July 2nd 1891.
laying on a plurality of wires or strands of wires the pitch of the individual coils is
very great whilst the several coils are sufficiently close to each other to give the
required protection to the hose. Absolute resistance to elongation or end pressure
as well as to bursting is ensured and injury to the armour by crushing is also
avoided.

page_text: 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 improvement in armoured hose consisting in coiling spirally on the hose a
plurality of wires or strands of wires as distinguished from a single wire sub-
stantially as and for the purposes hereinbefore described with reference to the
accompanying drawings.
Dated this Third day of July 1891.
CRUIKSHANK & FAIRWEATHER,
62, St. Vincent Street, Glasgow, Agents.