IMPROVEMENTS IN THE MANUFACTURE OF HOSE FOR CONVEYING WATER TO EXTINGUISH FIRES, AND FOR OTHER LIKE PURPOSES
Year: 1879

page_text: LETTERS PATENT to Eugène Pavoux, of the Firm of Eugène Pavoux and Co.,
of Queen Victoria Street, in the City of London, and Brussels, in the Kingdom
of Belgium, for the Invention of "IMPROVEMENTS IN THE MANUFACTURE OF
HOSE FOR CONVEYING WATER TO EXTINGUISH FIRES, AND FOR OTHER LIKE
PURPOSES."
Sealed the 9th September 1879, and dated the 13th March 1879.
PROVISIONAL SPECIFICATION left by the said Eugène Pavoux at the
Office of the Commissioners of Patents on the 13th March 1879.
EUGÈNE PAVOUX, of the Firm of Eugène Pavoux and Co., of Queen Victoria
Street, in the City of London, and Brussels, in the Kingdom of Belgium. " IMPROVE-
MENTS IN THE MANUFACTURE OF HOSE FOR CONVEYING WATER TO EXTINGUISH
FIRES, AND FOR OTHER LIKE PURPOSES."
My Invention relates to improvements in the manufacture of hose for conveying
water to extinguish fires, and for other like purposes, and is more especially
designed for the class of hose described in the Specification of Letters Patent
granted to Gustave Luyckx, and dated A.D. 1867, August 21, No. 2394, and which
is made with an inner lining of india rubber or similar flexible material covered
with an outer casing of woven hemp, or canvas, or similar substance.
It has been found in practice that hose so made is far superior to leather hose,
being capable of resisting greater pressure, and its superiority has caused it
to be very generally adopted for fire-engines in place of the leather hose formerly
employed.
It has been found in practice that although the said india rubber lined hemp hose
is capable of resisting very considerable strain, it sometimes bursts when subjected
to excessive pressure, and whenever this occurs the fracture takes place somewhere
along the longitudinal line presented by the fold or join in the hemp covering, and
caused by the mode of weaving the same. This fold or join constitutes a relatively
weak part, which sometimes does yield when the hose is subjected to extraordinary
strain, and the object of my present Invention is to strengthen the said hose along
this line, so that it will stand a still greater pressure than has been heretofore
possible.
I accomplish this object by interposing along and upon the said fold or join a
strip of strong canvas or similar suitable material, which is placed between the hemp.
.

page_text: or canvas covering and the india rubber lining in such a manner that it adheres
firmly to both.
So great is the advantage resulting from this mode of manufacture that I have
found in practice with a hose so made a pressure of four hundred and twenty pounds
to the square inch did not cause any moisture to appear upon the surface of the
hose.
Although hose so constructed is particularly applicable for use with fire engines,
I wish it to be understood that it may also be advantageously employed for any
purpose where it is subjected to considerable strain.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Eugène Pavoux in the Great Seal Patent Office on the 13th September
1879.
1
EUGÈNE PAVOUX, of the Firm of Eugène Pavoux and Co., of Queen Victoria
Street, in the City of London, and Brussels, in the Kingdom of Belgium. "IM-
PROVEMENTS IN THE MANUFACTURE OF HOSE FOR CONVEYING WATER TO EXTINGUISH
FIRES, AND FOR OTHER LIKE PURPOSES."
My Invention relates to improvements in the manufacture of hose for supplying
water to extinguish fires, and for other like purposes, and is more especially
designed for the peculiar kind of hose described in the Specification of Letters
Patent granted to Gustave Luyckx, and dated A.D. 1867, August 21, No. 2394, and
which is made with an inner lining of india rubber or similar flexible material
covered with an outer portion of woven hemp, canvas, or similar substance. Hose
made in this manner is far superior to leather hose, being capable of resisting greater
pressure, and its superiority has caused it to be very generally adopted for fire-
engines in place of the leather bose formerly employed.
It has however been found in practice that although the said india rubber lined
hemp hose is capable of resisting very severe strains, it sometimes bursts when,sub-
jected to excessive pressure, and whenever this occurs the fracture takes place
somewhere along the longitudinal line of the fold or crease produced in the hemp or
other fibrous material by the mandrel used in the manufacture of the same. This
fold or crease constitutes a relatively weak part, as the fibres at this part of the tube
have in the weaving or braiding of the same been subjected to a slight degree of
abrasion; they therefore sometimes yield when the hose is subjected to excessive
strain, and the object of my present Invention is to strengthen the said hose along
this line, so that it will bear a still greater pressure than that which it has heretofore
been capable of bearing.
I accomplish this object by combining with the hose a strip or strips of strong
canvas or similar suitable material, which is interposed between the hemp canvas or
other fibrous portion of the hose and the india rubber lining, and united therewith
in such a manner that it adheres firmly to both.

page_text: In the accompanying Drawing I have represented in transverse section a piece of
hose to which my said Invention is applied.
a is the fibrous portion; b is the india rubber lining; c, c, are strips of canvas or
other material placed between the same along the lines of the creases or folds in
the hose.
So great is the advantage resulting from this mode of manufacture that I have
found in practice with hose so made a pressure of four hundred and twenty
pounds to the square inch does not cause any moisture to appear upon the surface of
the hose.
Having thus fully described my said Invention, and the manner of performing
the same, I wish it understood that although hose manufactured according to my
Invention is particularly applicable for use with fire engines, it may also be advan-
tageously employed for any purpose where it is subjected to considerable strain, and
I claim,
-
In the manufacture of hose which consists of an india rubber portion and a fibrous
covering, the combination with the same of a strip or strips of canvas or other
suitable material interposed between the said india rubber and fibrous portions of
the hose, substantially as and for the purpose specified.
In witness whereof, I, the said Eugène Pavoux, have hereunto set my hand
and seal, this Tenth day of September, in the year of our Lord One
thousand eight hundred and seventy nine.