RUBBER DRIVING BELTS AND OTHER INDIA-RUBBER ARTICLES
Year: 1881

page_text: Plaistow, in the County of
IMPROVEMENTS IN INDIA-
LETTERS PATENT to William Thomas Henley, of
Essex, Telegraph Engineer, for an Invention of
RUBBER DRIVING BELTS AND OTHER INDIA-RUBBER ARTICLES."
PROVISIONAL SPECIFICATION left by the said William Thomas Henley at
the Office of the Commissioners of Patents on the 2nd May 1881.
86
WILLIAM THOMAS HENLEY, of Plaistow, in the County of Essex, Telegraph
Engineer. IMPROVEMENTS IN INDIA-RUBBER DRIVING BELTS AND OTHER
INDIA-RUBBER ARTICLES."
Driving belts constructed according to this Invention are made of two bands
made of a mixture of india-rubber and sulphur, such as is used for vulcanizingį
these bands have intermediate strong flexible galvanized or tinned steel wires placed
between them and are passed through rollers. Or I may in addition use two inner
bands made of india-rubber and oxide of zinc and French chalk, in order to prevent
the action of the sulphur on the wire. These two or four bands being passed
through the rollers are compressed into one, the superfluous material at the edges
being also shorn off. The wires before entering between the bands are passed
through guides to keep them the proper distance apart in the belt. The
driving belt so made is cured by dry heat or high pressure steam, and after being
thoroughly dried it is kept immersed in heated ozokerit, paraffin, or other suitable
hydrocarbon, so as to be thoroughly impregnated therewith; the chemical
combination which thus takes place renders the belt much thicker and heavier, and
also impervious to moisture and atmospheric influences; the enclosed wires render
such belts very strong and suitable for driving purposes. Where great strength is
not required I sometimes make such belts without the wires, and treat a single
band of the india-rubber prepared, as aforesaid, by curing,drying, and then immersing
in heated ozokerit or other hydrocarbon, whereby I obtain a very durable and
supple driving belt which is quite impervious to moisture, and which withstands
atmospheric influences. The driving may in some cases be dispensed with as the
heat of the ozokerit drives the moisture out.
Instead of the separate wires I may use wire gauze or netting, or the wires may
be connected by cross wires woven.
I also treat other vulcanized india-rubber articles, so as to make them withstand
the injurious action of moisture and atmospheric influences. India-rubber hose,
tubes, and buffers, for instance, which now rapidly deteriorate-thereby so as to
crack I treat as described, so as to cause the ozokerit or other suitable hydrocarbon
to penetrate the article and chemically combine therewith.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed.
by the said William Thomas Henley in the Great Seal Patent Office on tho
2nd November 1881.
WILLIAM THOMAS, HENLEY, of Plaistow, in the County of Essex, Telegraph
Engineer. IMPROVEMENTS IN INDIA-RUBBER DRIVING BELTS AND OTHER
INDIA-RUBBER ARTICLES."
Driving belts constructed according to this Invention are made of two bands made
of a mixture of india-rubber compound and sulphur such as is used for vulcanizing;
these bands have intermediate strong flexible galvanized or tinned steel wires placed
between them, and are passed through rollers. Or I may in addition use two inner.
bands made of india-rubber and oxide of zinc and French chalk, in order to prevent
the action of the sulphur on the wire. These two or four bands being passed
through the rollers are compressed into one, the superfluous material at the edges
being also shorn off. The wires before entering between the bands are passed
through guides to keep them the proper distance apart in the belt. The driving
belt so made is cured by dry heat or high pressure steam, and after being
thoroughly dried it is kept immersed in heated ozokerit, paraflin, or other suitable
hydrocarbon, so as to be thoroughly impregnated therewith; the chemical
combination which thus takes place renders the belt much thicker and heavier,
and also impervious to moisture and atmospheric influences ; the enclosed wires render
such belts very strong and suitable for driving purposes. Where great strength
is not required, I sometimes make such belts without the wires.but with the usual
canvas layers to prevent stretching, and treat such a band of the india-rubber
prepared as aforesaid by curing, drying, and, then immersing in heated ozokerit or
other hydro-carbon, whereby I obtain a very durable and supple driving belt which
is quite impervious to moisture, and which withstands atmospheric influences.
The drying may in some cases be dispensed with as the heat of the ozokerit drives
the moisture out. Layers of canvas or other fibrous material or fabric may also be
used with the wired, belts.
Instead of the separate wires I may use wire gauze or netting, or the wires may
be connected by cross wires woven.
I also treat other vulcanized india-rubber articles, so as to make them withstand
the injurious action, of moisture and atmospheric influences. India-rubber hose,
tubes, and buffers, for instance, which now rapidly deteriorate thereby so as to
crack I treat as described, so as to cause the ozokerit or other suitable hydrocarbon
to penetrate the article and chemically combine therewith. I also make waterproof
cloths or clothing by covering the cloth or other fabric, or saturating it with an
india-rubber compound capable of being vulcanized, and then drying and treating
with ozokerit or other; hydrocarbon, as before described, or I place upon the cloth
a mixture of india-rubber and zokerit or other hydrocarbon ground together or
saturate with the same, and also add sulphur and vulcanize the same when
..desired.
الله
Having now described the nature of this Invention. I claim,-
First. The mode or modes of manufacturing driving belts or bands, according to
which belts, or bands consisting wholly or partly of india-rubber and sulphur and of
canvas or other fibrous material or fabric are passed through rollers; then cured and
then, treated with ozokerit, paraffine, or other suitable hydrocarbon, substantially.
as set forth.
Second. The combination. driving belts or bands consisting of outside layers of
vulcanized india-rubber and inner layer or layers of steel wires or wire gauze, with
or without intermediate layers made of india-rubber and oxide of zine and French

page_text: chalk, the said belts or bands being cured and then treated with ozokerit, paraffine,
or other suitable hydrocarbon, substantially as set forth.
Third. The mode of manufacturing india-rubber driving belts, hose, tubes, buffers,
and other goods, according to which said goods are cured and then treated with
ozokerit, paraffine, or other suitable hydrocarbon, substantially as set forth.
Fourth. The method of manufacturing waterproof cloths or clothing by treating
with india-rubber compound and ozokerit or other hydrocarbon, as set forth, and
also treating the cloths with a mixture of india-rubber and ozokerit or other
hydrocarbon ground together, and where necessary adding sulphur and vulcanizing
the same.
In witness whereof, 1, the said William Thomas Henley, have hereunto set
my hand and seal, this Twenty-ninth day of October, in the year of our
Lord One thousand eight hundred and eighty-one.
WILLIAM THOS. HENLEY. (L.S.)