Improvements in Flexible Tubing.
Year: 1896

page_text: Date of Application, 19th Mar., 1896
Complete Specification Left. 19th Jan., 1897-Accepted. 20th Feb., 1897
Improvements in Flexible Tubing.
I, WILLIAM HENRY KANZON BOWLEY of 96 High Holborn in the County of
London, Engineer do hereby declare the nature of this invention to be as follows:-
My invention relates to the construction of fluid tight flexible tubing and junctions
for the same, which I effect in the following manner. I prepare in the first place a
length of flexible metallic tube such as one of those described in the Specifications
No. 9478 of 1885, No. 7906 of 1889, No. 14867 of 1889, No. 15192 of 1890 and
No. 1476 of 1894, by helically coiling a strip of metal corrugated in such a way that
the convolutions interlock with one another.
Over this tube which I may compress lengthwise I draw a tube of caoutchouc which
may be vulcanised in the first place or may be vulcanised after it is on the metal tube.
I plug temporarily the ends of the metal tube and screw on to them sleeves which
are internally screw threaded to the same pitch as the helix of the compressed tube.
I then draw over the sleeves the ends of the caoutchouc tube and clamp them on
the sleeve by clips made in halves bolted together or by clips of other known
kinds.
The sleeves may terminate in flanges or in internally or externally screwed parts
to be connected by bolts, or by screwed unions to other lengths of tube or to other
connections.
According to a modified construction the sleeve with internally screwed thread
of the same pitch as the helix of the compressed tube is provided with a projecting
part which is externally screw threaded and a loose ring and screwed cap are
provided. The tube is screwed into this sleeve along with some packing and the
ring is then-placed on top of the packing and the cap screwed on to the sleeve.
The end of the caoutchouc tube is then drawn over the sleeve and clamped thereon in
any known manner.
Dated this 19th day of March 1806
ABEL & IMRAY,
Agents for the Applicant.
I, WILLIAM HENRY KANZON BOWLEY, of 96 High Holborn, in the 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 :-
My invention relates to the construction of fluid tight flexible tubing and junctions
for the same, which I effect in the following manner. I prepare in the first place
a length of flexible metallic tube such as one of those described in the Specifications
No. 9478 of 1885, No. 7906 of 1889, No. 14867 of 1889, No. 15192 of 1890 and
Pain Sl

page_text: No. 1476 of 1894, by helically coiling a strip of metal corrugated in such a way that
the convolutions interlock with one another.
Over this tube which I may compress lengthwise I draw a tube of caoutchouc
which may be vulcanised in the first place or may be vulcanised after it is on the
metal tube.
I joint lengths of such tubes to one another or to other objects as I shall describe
referring to the accompanying drawing which is a longitudinal section shewing the
one end provided with a joint for a screw union, the other end provided with a joint
for a flange.
I screw on to the metal tube a sleeve A which is internally screw threaded to
the same pitch as the helix of the tube. I then draw over the sleeve the end of the
caoutchouc tube B and clamp this on the sleeve by clips C made in halves bolted
together.
The sleeve may terminate in a flange D to be connected by bolts, or it may terminate
in a screwed union E.
According to a modified construction the sleeve A with internally screwed thread
of the same pitch as the helix of the tube is provided with an enlarged part F
which is externally screw threaded and a washer G and a screwed cap H are placed
on the tube. The tube is thin screwed into the sleeve, some packing is wound on it,
and the washer is then brought against the packing and the cap is screwed on to the
sleeve. The end of the caoutchouc tube is then drawn over the sleeve and
clamped thereon.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
A flexible metallic tube covered by a tube of caoutchouc and provided at its
ends with sleeves for jointing it to other tubes or to other objects substantially
as described.
Dated this 10th dox of Jonne 1807
ABEL & IMRAY,
Agents for the Applicant.