Improvements in the Manufacture of Flexible Hose or Coupling Pipes.
Year: 1892

page_text: Date of Application, 17th Feb., 1892-Accepted, 28th May, 1892
COMPLETE SPECIFICATION.
Improvements in the Manufacture of Flexible Hose or Coupling
Pipes.
I, JOHN EBENEZER HOPKINSON of 15 Walbrook in the City and County 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 :-
vacuum,
My invention has for object improvements in the manufacture of flexible hose for
the conveyance of air, water or gas, or for other similar purposes; and is
more particularly applicable to the construction of coupling pipes, such as are used
for vacuum and pressure brakes.
It consists in the case of vacuum or pressure brake pipes in the combination and
use of a number of hard rubber or vulcanite rings or bands, with the india-rubber
or other flexible hose; the rings or bands being securely embedded within the
bore of the hose, or flush upon the outside of the same for the purpose of
strengthening, and retaining the full bore of the hose at all times without the use of
any wire.
In applying my invention to the ordinary rubber hose I may insert plys of
cotton, jute, or hemp cloth, or I may insert one or more plys of asbestos metallio
cloth in lieu thereof.
These hard rubber vulcanite rings or bands may be arranged in parallel rows
throughout the length of the hose or at any suitable angle to each other, or I may
use continuous strips or bands of vulcanite or hard rubber wound in a spiral form
either inside or outside of the bore, or on both sides if desired.
The hard rubber or vulcanite rings or bands may be of any suitable section and
in lieu of vulcanite I may use any similar suitable material.
Hose thus constructed is not only much lighter but considerably stronger than
the ordinary wired hose, and presents a perfectly smooth surface inside and outside
and moreover is not liable to oxidation.
And in order that my invention may be the better understood reference is had to
the accompanying sheet of drawings upon which
--
invention, the
Fig. 1. represents a sectional elevation of a hose embodying my invent
hard rubber or vulcanite rings being shewn in parallel rows inside
Fig. 2. being a transverse section through the same.
Fig. 3. illustrates the application to a vacuum brake pipe, the hard rubber or
vulcanite being arranged in a spiral form within the hose.
Fig. 4. shows in section the application to a corrugated vacuum pipe or
coupling.
Fig. 5. is a sectional elevation through a pressure brake coupling, shewing the
rings or bands arranged spirally on the outside of the hose.
Fig. 6. a transverse section through the same.
Fig. 7. shews the application to ordinary hose the hard rubber or vulcanite strip
being wound spirally around its outer surface.
Fig. 8. being a transverse section through same.
Fig. 9. a transverse section through a hose shewing the metallic asbestos cloth
inserted between two layers of rubber.
A. being the india-rubber or other flexible hose.
B. B. are the hard rubber or vulcanite rings, bands or strips.
C. the insertion or canvas lining.
D. the metallic asbestos cloth insertion.

page_text: 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. In flexible hose, the combination with the hose, of rings, bands or strips of
hard rubber or vulcanite or other similar suitable material, substantially as
described.
2. In flexible hose the combination and use of metallic asbestos cloth inserted in
one or more plys, substantially as described and shewn in Fig. 9. of the accom-
panying drawings.
3. In flexible hose the combination of hard rubber or vulcanite rings, bands, or
strips, with metallic asbestos cloth, substantially as described and shewn in Fig. 5.
of the accompanying drawings.
ཙཔ་ སམ
For the Applicant,
VICTOR I. FEENY,
Agent.