Improvements in the Construction of Flexible Hose.
Year: 1892

page_text: Date of Application, 25th Mar., 1892
Complete Specification Left. 15th Oct., 1892-Accepted, 19th Nov., 1892
PROVISIONAL SPECIFICATION.
Improvements in the Construction of Flexible Hose.
I, JOSEPH THOMPSON, of The Sphincter Grip Armoured Hose Company,
Limited, 9 Moorfields, City of London, Engineer, do hereby declare the nature of
this invention to be as follows :-
This invention relates to improvements in the construction of flexible hose.
In making the hose in accordance with this invention, the hose is made on a
mandrel as usual, or otherwise, I first put on one, two, or three plies of canvas as
required in conjunction with india rubber or other compound, and then on this I
put a hard flax, or other cord (specially prepared) in a spiral form to any required
pitch. put upon this one, two, or three plies of canvas, so that when the hose is
completed, it has a raised spiral on its outer surface of the same height as the cord
put between the plies.
In armouring the hose, I employ strip or ribbon galvanized steel or other metal
of any required section, but preferably of U section, this is coiled upon the hose
in such a manner as to enclose the raised spiral on the outer surface of the hose
and the two edges of the U shaped strip are closed inward towards one another
thus clasping and enclosing the cord, and plies of canvas in the centre of same, and
firmly locking the metal strip to the hose. By this means I prevent flexible hose
from collapsing or kinking; at the same time I protect the outside surface of the
hose from abrasion in dragging on any hard floor. The hose is available for suction
or delivery purposes.
Dated thin 04th day of March 1900
H. GARDNER,
Patent Agent, 166, Fleet Street, London,
Agent for the said Joseph Thompson.
COMPLETE SPECIFICATION.
Improvements in the Construction of Flexible Hose.
I JOSEPH THOMPSON of The Sphincter Grip Armoured Hose Company
Limited, 9 Moorfields City of London, Engineer, 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 improvements in the construction of flexible hose.
In making the hose according with this invention the hose is made on a mandril
as usual or otherwise, I first put on one, two or three plies of canvas as required
in conjunction with india rubber or other compound and then on this a hard flax
or other cord (specially prepared) in a spiral form to any required pitch.
This construction will be more clearly understood by Figure 1 of the annexed
drawings which show a short length of cord wrapped hose separated longitudinally
for indicating three plies of canvas a, b, c, these being treated by rubber in manner
well known in rubber factories. The cord d which may be of the ordinary twisted,
spun or braided kind compounded with rubber or it can be soaked in a chemical
solution to preserve it or be coated with a waterproofing composition or a varnish
is wrapped spirally on the hose to protect the hose from wear and strengthen it to
resist internal pressure. I have referred to a spun or braided cord but any kind
of material having sufficient strength and flexibility for the purpose may be
wrapped spirally on the hose as found necessary or convenient, or the cord may be
made as part of the rubber coating on the canvas or a separate coating prepared

page_text: by moulding and then be put upon the canvas which coating with the cord appears
in continuous spiral or other order when the sulphuring is completed.
This will be understood by referring to Figure 2 where the same letters are
indicated.
It will be here observed that the outer cover or skin of rubber & has the cord or
rib ƒ of spiral twining in a piece with it and produced by moulding. This is
preferably accomplished in a sheet or long strip with the rib cords diagonally upon
one face: the body (of rubber) being provided with a lap piece 9 at one edge to
be put under the overlap of the other edge when brought round the canvas which
is then upon the mandrel as will be seen by Figure 3 (section) the diagonal ribs
being so arranged that they butt against each other and form the spiral on
the hose.
: :
Figure 4 represents a combination of the foregoing i.e., the cord d enclosed in
the rubber rib f which forms part of the outer sheathe on the canvas but which
rubber covered cord may be wound spirally on the canvas direct or on a rubber
covered canvas.
I may
If extra strength be required in the hose such as for high pressure pumps
put upon the corded hose Figure 1 the rubber ribbed hose Figure 2 or the cord.
lined rubber rib Figure 4 one, two or more plies of canvas h, i, Figure 5 so that
when the hose is completed it has a raised spiral on its outer surface of the same
height as the cord or spiral ribs which are between the plies.
When the hose is subjected to rough usage as in a brewery or dye house I armour
the hose with strip or ribbon, galvanized steel or other metal of any required
section but preferably of U section as at ; Figure 5 this is coiled upon the hose in
such a manner as to enclose the raised spiral on the outer surface of the hose and
the two edges of the U shaped strip are closed inwards towards one another thus
clasping and enclosing the cord or the cord and plies of canvas and firmly locking
the metal strip to the hose. By this means I prevent flexible hose from collapsing
or kinking at the same time I protect the outside surface of the hose from abrasion
in dragging on any hard floor.
The hose is available for suction or delivery purposes.
The rubber cord or rib f I purpose making of harder flexibility than that of the
strip e.
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 is :-
1. Partially covering flexible hose with a flexible cord or rib of any material
spirally wound thereon as a protection to the body of the hose as described with
reference to Figure 1 of the annexed drawings.
2. Covering flexible hose with a flexible material such as strip and rib combined
of rubber or its compounds as described with reference to Figures 2 and 3 of the
annexed drawings.
3. Lining the rubber rib or ribs of a rubber strip with a cord of any other
material the whole being flexible and as a covering to a flexible hose as described
with reference to Figure 4 of the annexed drawings.
4. Covering the projecting spirals of a flexible hose with a metal sheath as and
for the purposes described with reference to Figure 5 of the annexed drawings.
1000
H. GARDNER,
Patent Agent, 166, Fleet Street, London,
Agent for the said J. Thompson.
H. GARDNER,
Patent Agent, 166, Fleet Street, London,
Agent for the said J. Thompson.