IMPROVEMENTS IN THE MANUFACTURE OR CONSTRUCTION OF HOSE OR FLEXIBLE PIPES
Year: 1883

page_text: LETTERS PATENT to Oscar Blödner of Gotha Germany and Hermann
"IMPROVEMENTS IN THE
Vierschrodt of Gotha Germany for an Invention of
PROVISIONAL SPECIFICATION left by the said Oscar Blödner and Hermann
Vierschrodt at the Office of the Commissioners of Patents
11th December 1883.
on the
OSCAR BLODNER of Gotha Germany and HERMANN VIERSCHRODT of Gotha
Germany "IMPROVEMENTS IN THE MANUFACTURE OR CONSTRUCTION OF HOSE
OR FLEXIBLE PIPES
"
This Invention relates to improvements in the manufacture or construction of
hose or flexible pipes and has for its object to render the said hose or pipes capable
of resisting considerable pressure with but a small thickness and weight of
material and without liability to leak or to stretch.
In carrying this Invention into effect a tube of fibrous materials such as wool,
hemp, cotton, silk, jute and the like is first woven or plaited upon a circular loom
or equivalent weaving or plaiting apparatus in such a manner that longitudinal
threads or cords are interwoven between every two shoots or layers of crossed or
diagonal threads of the fibrous materials. These longitudinal threads or cords
have the effect of preventing the hose or pipe either from expanding under pressure
in the direction of its diameter (and contracting correspondingly in the direction
of its length) or from stretching longitudinally and contracting in diameter when
the tube is exposed to a strain in the direction of its axis, which alterations in
length and diameter are so objectionable in hose or pipes made in the ordinary
way. The woven tube produced as described is enclosed or covered or coated
inside and out with India rubber or equivalent substance which may be vulcanized
in the ordinary way By. the manufacture or construction of the hose or pipes as
hereinbefore described liability to distortion is obviated, the component parts being
firmly connected.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Oscar Blödner and Hermann Vierschrodt in the Patent Office on the
11th June 1884.
"IMPROVE-
OSCAR BLÖDNER and HERMANN VIERSCHRODT of Gotha Germany
MENTS IN THE MANUFACTURE OR CONSTRUCTION OF HOSE OR FLEXIBLE PIPES"
This Invention relates to improvements in the manufacture or construction of
hose or flexible pipes and has for its object to render the said hose or pipes capable
of resisting considerable pressure with but a small thickness and weight of
material and without liability to leak or to stretch.
In carrying this Invention into effect a tube of fibrous material such as wool,
hemp, cotton, silk, jute and the like is first woven or plaited upon a circular loom
or equivalent weaving or plaiting apparatus in such a manner that longitudinal
threads or cords are interwoven or interplaited between every two shoots or layers
of crossed or diagonal threads of the fibrous materials as shewn in Figure 1 of the
accompanying drawing where the longitudinal threads or cords are marked a and
the crossed or diagonal threads between which they are held are marked b. These
longitudinal threads or cords have the effect of preventing the hose or pipe either
from expanding under pressure in the direction of its diameter (and contracting
correspondingly in the direction of its length) or from stretching longitudinally
and contracting in diameter when the tube is exposed to a strain in the direction
of its axis which alterations in length and diameter are so objectionable in hose or
pipes made in the ordinary way. The woven tube produced as described is
enclosed or covered or coated inside and out with india rubber or equivalent
substance which may be vulcanised in the ordinary way. Figure 2 shews the
piping when completed by the covering or coating and lining marked c c². By the
manufacture or construction of the hose or pipes as herein before described liability
to distortion is obviated, the component parts being firmly connected.
Having now described and particularly ascertained the nature of our said
Invention and the manner in which the same is or may be used or carried into
effect we would observe in conclusion that what we consider to be novel and original
and therefore claim as the Invention secured to us by the hereinbefore in part
recited Letters Patent is :-
The manufacture or construction of hose or flexible pipes substantially as herein-
before described.
In witness whereof We the said Oscar Blödner and Hermann Vierschrodt have
to this our Specification set our hands and seals this seventh day of June One
thousand eight hundred and eighty four.