Improvements in Jointing Rubber Tubes with Metal Appliances.
Year: 1898

page_text: PROVISIONAL SPECIFICATION.
Improvements in Jointing Rubber Tubes with Metal Appliances.
I, PETER COWAN, 370, Saint Vincent Street, W., Glasgow, Patternmaker, do
hereby declare the nature of this invention to be as follows:-
:-
My invention of improvements in jointing rubber tubes with metal appliances,
referes principally to the tubes used for supplying gas, or air, to cooking, lighting,
or other apparatus. And relates first, to a method of securing the end of the
rubber tube. I make two metal rings, one of which I make just wide enough
(at one end) to pass over the end of the tube, leaving it wider at the other end
to allow for the rubber being widened out when the tapered end of the other ring
is being screwed in. At this end I also form a screw, by which the two rings
are joined together. I also form a small roughened flange at this end to hold
it while screwing both together.
The second ring I form with a tapered end, and a screw to fit into the first ring.
While the second ring is being screwed into the first the tapered end forces the
rubber to expand, and fixes it tightly inside the first ring. The second ring has
a roughened flange the same as the first, which meets the first when screwed
together. A passage is formed in the second ring for the gas, or air to pass
through.
A second part of my invention is the forming of a screw at the flange end of
the second ring, whereby, the tube can be attached (or detached) to any of the
said apparatus, at will.
1.1 10l
P
1000
PETER
COWAN,
370, St. Vincent Street, W., Glasgow.
Improvements in Jointing Rubber Tubes with Metal Appliances.
I. PETER COWAN, of 370, St. Vincent Street, Glasgow, Pattern Maker, do hereby
declare the nature of this invention and in what manner the same is to be per-
formed to be particularly described and ascertained in and by the following
statement:
My invention relates to improvements in jointing rubber, hose, or any other
flexible tubes with metal appliances used for supplying water, gas, air, or other
fluid, for extinguishing fires, cooking, lighting, or other purposes.
In order that my invention may be properly understood and readily carried
into effect I have appended a sheet of drawings shewing my improvements applied
[Price 8d.1

page_text: to a hose pipe, but of course they are, as explained, applicable to all classes of
flexible tubes.
Figure 1 is an elevation shewing my improvements applied to a hose.
Figure 2 is a vertical section of part of hose.
Figure 3 is a plan of Figure 2.
In carrying out my invention I provide two short metal conical tubes A and B,
A being narrower at its lower end to allow the rubber or other tube C to slip over
it, while it gradually widens at its upper end to admit of the rubber or other
tube. being stretched when the upper end of the short metal conical tube B is
being screwed into position. Small recesses E are provided in the metal conical
tubes A and B so that as they are being screwed home the rubber or other tube
presses into these recesses E thereby ensuring a thorough firm hold or grip of
the rubber or other tube all round and so making a perfect joint.
The coupling together of the two corresponding members A A with their
respective lengths C, C, Fig. 1, is effected by means of a bayonet joint which forms
no part of my invention.
In connecting flexible tubes or pipes other than hose pipes, as for example, a
gas tubing to a gas bracket and lamp, the metal connection marked A would form
a part of the fixed branch connection, in other words, the rigid part to be con-
nected to the flexible tube would be provided with an external screw thread and
terminate with a conical extension as with A, over which the flexible tubing
would be placed as is the case with the hose C, the movable ring or metal con-
nection as with 3 would then be screwed on to A by means of its internal screw
thread and its internal cone surface would jam the tube firmly against the cone
surface of A as already mentioned. The last named arrangement would con-
stitute the bracket connection with the flexible tube. The connection of the
flexible tube with the lamp would be precisely the same.
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:
The arrangement for jointing rubber, hose, or any other flexible tubes with
metal appliances used for supplying water, gas, air, or other fluid, for extinguish-
ing fires, cooking, lighting, and other purposes, substantially as described and
illustrated in the accompanying sheet of drawings.
Dated this 28th day of December 1800
BOTTOMLEY & LIDDLE,
154, St. Vincent Street, Glasgow, Applicant's Patent Agents.