IMPROVEMENTS IN THE MANUFACTURE OF TUBING
Year: 1881

page_text: LETTERS PATENT to John Clayton Mewburn, of 169, Fleet Street, in the
City of London, Patent Agent and Consulting Engineer, for an Invention
of "IMPROVEMENTS IN THE MANUFACTURE OF TUBING." A communication
from abroad by La Société J. L. Martiny et Compagnie, of Paris, France.
PROVISIONAL SPECIFICATION left by the said John Clayton Mewburn at
the Office of the Commissioners of Patents on the 21st January 1881.
JOHN CLAYTON MEWBURN, of 169, Fleet Street, in the City of London, Patent
Agent and Consulting Engineer. "IMPROVEMENTS IN THE MANUFACTURE OF
TUBING." [A communication from abroad by La Société J. L. Martiny et
Compagnie, of Paris, France.]
This Invention consists of the manufacture of a new description of tubing made
of india rubber covered with endless fabric. The Invention comprises the mode of
manufacture, as hereinafter described, and the new commercial product, that is to
say, tubing of all sizes made in the manner explained.
I manufacture the tubing as follows:-I first make tubing by the usual processes
from india rubber, which I leave unvulcanized or incompletely vulcanized; then
upon this tubing which forms a core or centre I weave directly the endless fabric
or jacket which is to cover the india rubber tubing externally by adherence. Owing
to the non-vulcanization of the india rubber or its incomplete vulcanization, the
tubing possesses externally a power of agglutination sufficient to cause it to stick
and adhere in a positive manner to the fabric, which lies against it with each of its
meshes.
The weaving of the fabric upon the tubing is effected on an ordinary circular
loom, analogous to those employed for the manufacture of round laces or braid,
or the fabric may be manufactured by any other suitable loom or even by hand.
The manufacture of the india rubber tubing thus covered with adherent fabric,
is thus effected in a continuous manner. When a sutable length of it has been
made, it is cut off with the covering or jacket and then submitted to the
vulcanization by the ordinary means.

page_text: After this last operation, the internal india rubber and the external fabric or
covering form in a manner one and the same body, the two elements being
absolutely inseparable.
The tubing thus made has a resistance much greater than tubing made by
ordinary processes; it will resist internal pressures of 30 to 50 atmospheres and
upwards.
It will be understood that tubing of all sizes and thicknesses can be made according
to this Invention; also that the fabric may be covered externally with two or more
layers of india rubber; likewise that two or more thicknesses of the woven fabric
can be superposed one upon another, with or without the interposition of india
rubber.
•
Various textile materials may be employed for the outer fabric, such, for example,
as wool, cotton, flax, silk, hair, and jute, or even wires of copper, brass, iron, steel, or
other metal.
It may be remarked that tubing made in accordance with this Invention does
not become flattened like ordinary tubing, but on the contrary preserves the
cylindrical form which it possesses on leaving the loom even if it be wound upon a
drum. It is also lighter than ordinary tubing.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said John Clayton Mewburn in the Great Seal Patent Office on the
9th July 1881.
JOHN CLAYTON MEWBURN, of 169, Fleet Street, in the City of London, Patent
Agent and Consulting Engineer. "IMPROVEMENTS IN THE MANUFACTURE OF
TUBING." (A communication from abroad by La Société J. L. Martiny et
Compagnie, of Paris, France.)
This Invention consists of the manufacture of a new description of tubing made
of india rubber covered with endless fabric. The Invention comprises the mode of
manufacture, as hereinafter described, and the new commercial product, that is to
say, tubing of all sizes made in the manner explained.
I manufacture the tubing as follows:-I first make tubing by the usual processes
from india rubber, which I leave unvulcanized or incompletely vulcanized; then
upon this tubing which forms a core or centre I weave directly the endless fabric
or jacket which is to cover the india rubber tubing externally by adherence. Owing
to the non-vulcanization of the india rubber or its incomplete vulcanization, the
tubing possesses externally a power of agglutination sufficient to cause it to stick
and adhere in a positive manner to the fabric, which lies against it with each of its
meshes.
The weaving of the fabric upon the tubing is effected on an ordinary circular
loom or braiding machine, analogous to those employed for the manufacture of
round laces or braid, or the fabric may be manufactured by any other suitable
machine or even by hand.
The manufacture of the india rubber tubing covered with adherent fabric is thus
effected in a continuous manner. When a suitable length of it has been made, it is
cut off with the covering or jacket and then submitted to vulcanization by the
ordinary means.
After this last operation, the internal india rubber and the external fabric or
covering form in a manner one and the same body, the two elements being
absolutely inseparable.
The tubing thus made has a resistance much greater than tubing made by
ordinary processes; it will resist internal pressures of 30 to 50 atmospheres and
upwards.
It will be understood that tubing of all sizes and thicknesses can be made
according to this Invention; also that the fabric may be covered externally with
one, two, or more layers of india rubber; likewise that two or more thicknesses of
the woven fabric can be superposed one upon another, with or without the inter-
position of india rubber.
Various textile materials may be employed for the outer fabric, such, for example,
as wool, cotton, flax, silk, hair, and jute, or even wires of copper, brass, iron, steel,
or other metal.
It may be remarked that tubing made in accordance with this Invention does
not become flattened like ordinary tubing, but on the contrary preserves the
cylindrical form which it possesses on leaving the loom even if it be wound upon a
drum. It is also lighter than ordinary tubing.
Having now described the nature of the said Invention as communicated to me,
and in what manner the same is to be performed, I declare that I claim,-
The manufacture of tubing, substantially in the manner hereinbefore described.
In witness whereof, I, the said John Clayton Mewburn, have hereunto set my
hand and seal, this Eighth day of July, One thousand eight hundred and
eighty one.
J. C. MEWBURN. (L.S.)