IMPROVEMENTS IN THE MANUFACTURE OF HOSE OR FLEXIBLE TUBING OR HOSE
Year: 1885

page_text: I WILLIAM ROBERT LAKE, of the firm of Haseltine Lake, and Co, Patent Agents,
Southampton Buildings, in the County of Middlesex do hereby declare the nature
of my invention for "IMPROVEMENTS IN THE MANUFACTURE OF HOSE OR FLEXIBLE
TUBING OR HOSE " and in what manner the same is to be performed, to be par-
ticularly described and ascertained in and by the following statement:-
:-
This invention relates to the manufacture of hose or flexible tubing.
The two kinds of hose now generally employed are; (with the exception of
leather hose), hemp-hose, internally coated with india-rubber; and cotton-hose also
provided with an internal conting of india rubber. These two kinds of hose
possess great disadvantages in use, as, the hemp or cotton coating although impreg-
nated with tannic acid with a view to protect the same against the injurious action
of the water, cannot be prevented from becoming soaked with water, since all the
chemical preserving agents heretofore employed have only proved efficient for
preventing the destruction of the hose by the action of the water upon the same,
and not for preventing the soaking of the hose with water which, as is well known,
greatly increases the weight of the hose.
By reason of this increase of the weight, the handling of the hose is rendered
very difficult after a continuous use, so that the employment of the same for long
distances, and particularly cotton hose, often becomes an impossibility.
The water
also absorbed by the fabric evaporates therefrom but slowly so that the handling
of the hose is thus rendered difficult if the same is required for use before it has
dried.
According to the present invention the above mentioned disadvantages are
avoided by producing a hose which is water-repellant and which, also differs
materially from the hose heretofore made in the fact that, by reason of its novel
construction it is rendered much lighter per se than a hose of either of the said
kind as heretofore employed having the same size and strength.
In the accompanying drawing.
Figure 1 is a transverse section of a hose constructed according to the present
invention, and
Figure 2 is a similar section through the material of which the improved hose
is composed.
The improved hose consists of a substantial external vulcanized fabric a of
cotton. hemp or other suitable material enclosing a thin lining ½ of indie-mubber

page_text: which constitutes the internal hose-surface, but which, in some cases, may be
dispensed with since I do not wish to strictly confine myself to employing the
same. The said vulcanized fabric a is arranged spirally in two or more layers, and
by reason of its being thoroughly vulcanized it will act as a water-repellant both
on its inside and outside, no matter whether the internal india-rubber lining b be
employed or not. The vulcanization of the fabric not only prevents the water
from entering the fabric, but, at the same time, in consequence of the intimate
union, or incorporation, of the fabric caused by the said vulcanization, greatly
increases the strength of the hose, ensuring the Intter against the injurious effects
of a relatively high water pressure.
The said improved hose is produced as follows, that is to say :-
The cotton, or other suitable fabric a is spread out and first impregnated with a
solution of alum, whereupon it is placed in a solution of soap so that insoluble
alumina-soap is formed as is well understood by persons skilled in the art and
therefore will require no detailed description. The fabric thus impregnated is
now coated on both sides with a solution of india-rubber, preferably containing
some suitable pigment to give it colour, and is then wound spirally, in two or
more layers, upon a core-bar, in order to give said fabric impregnated and coated
as described, the shape of the desired hose.
As already mentioned, I consider it desirable, although by no means indis-
pensable for the purposes of my invention, to provide my improved hose on its
internal surface with a thin layer or lining of india-rubber with a view to increase
the strength of the said hose. In such case I preferably cover only such width of
the impregnated fabric with the said layer of india-rubber, b, as will correspond
with the circumference of the said core-bar upon which the fabric is wound, so
that the said india-rubber surface will forn the internal surface of the finished
hose, as will be well understood.
The hose, after being wound upon the said core-bar, is placed with the latter
into a steam boiler and subjected to a steam-pressure of from 2 to 3 atmospheres
to cause vulcanization to tako place in a well-known manner, after which the hose.
is ready for use.
The vulcanized hose thus obtained from the said fabric wound spirally after.
having been impregnated and treated with an india-rubber-solution as above set
forth, possesses all the novel features of this invention, inasmuch as it is, as com-
pared with the former hose, light, water-repellant and capable of withstanding
high pressure.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed as, communicated to
me by my foreign correspondent, I declare that what I claim is
First: A hose consisting of the fabric a wound spirally, and rendered water-
repellant and water-tight by means of impregnation and vulcanization, substantially
as, and for the purpose, specified.
Second: A hose consisting of a suitable fabric wound spirally, and rendered
water-repellant by means of impregnation and vulcanization, and having its inner
surface lined with a layer of vulcanized india-rubber b, substantially as, and for
the purpose, specified.
1
2
1000
f
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