An Improved Elastic Compound or Material for Protecting Pneumatic Tyres, also applicable for Hose Pipes and Driving Belts, and for such Household and Industrial Articles as can be made therefrom, also Process for Manufacturing the same.
Year: 1893

page_text: Date of Application, 10th Nov., 1893--Accepted, 19th May, 1894
CUMLELE
An Improved Elastic Compound or Material for Protecting Pneumatic
Tyres, also applicable for Hose Pipes and Driving Belts, and for
such Household and Industrial Articles as can be made therefrom,
also Process for Manufacturing the same.
A communication by PHILIPP REIDEL, of G. 4. 16, Mannheim, in the Empire
of Germany, Engineer.
I, WILLIAM PHILLIPS THOMPSON, F.C.S., M.I.M.E., of The Agency for
Foreign Patent Solicitors, 6 Lord Street, Liverpool and 6, Bank Street,
Manchester, both in the County of Lancaster, and 323 High Holborn, in the
County of Middlesex, Civil 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 :-
This invention has for its object a compound or material which is principally
intended to serve as a protective substance for pneumatic tyres, but this material,
when made in a peculiar manner, may be also employed for driving-belts, and such
household articles as are usually made of linoleum, oilcloth, indiarubber and the
like, for instance, table covers, stair carpets and mattings, door mats, and for many
other toilet and other useful articles such as collar and glove boxes, string bowls,
cardboard boxes and the like. Hose pipes, which may be employed for various
technical purposes, may also be made from this improved material.
When used more particularly for pneumatic tyres, stout and soft-fibred cellulose,
after having been suitably prepared, is dissolved to form a thin paste, and is
thoroughly mixed with equal parts of long staple specially prepared cotton fibres.
This mixture of fibres is spread in the form of a thin pasty solution on a mould
corresponding to the tyres and then compressed. A thin layer of compressed flax
fibre is then laid thereon, and then another layer of the above named pasty substance,
and by again applying pressure the whole of the water is removed. In order then
to give the whole material a suitable consistency, it is thoroughly saturated with
diluted liquid glue, or other similar binding substance, and again slightly pressed.
The material may then be made waterproof in the usual manner by being saturated
with tannic acid or a solution of alum or of acetate of alumina.
Instead of cellulose, wood pulp or esparto may be employed with equal
advantage.
The cotton fibres may be replaced by specially prepared linen fabric, or by a similar
vegetable material. The protective material produced in this manner is coated on
both sides with a strip of indiarubber and it can be laid over the wearing surface of
the tyre.
By employing this material pneumatic tyres may also be made in other ways to
those at present employed.
A modification of the invention consists in that the above mentioned.compressed
flax or like fibre may be inserted in a linen tube which is cut obliquely in order that
when drawn up no folds may result, the fibre being inserted longitudinally in the
centre, and the thin pasty substance formed of cellulose and cotton fibre is poured
into the tube. The tube is then placed in a press corresponding to the shape
of the tyre, and afterwards coated with sheet indiarubber, at both sides by a rapid
drying process.
A third method of manufacture is obtained, by beating cotton fibres which have
been carefully purified from all foreign matter, into the form of as thick a flock as
possible, and pressing it into a mould corresponding to the outer or wearing surface

page_text: of the tyre after having previously saturated it with a solution of indiarubber, or
other suitable binding material.
When three such layers have been formed in this manner, they are pressed
hydraulically into the shape of a tyre, and coated on both sides with strips of
indiarubber, or linen. Instead of cotton fibre, flax, manilla, sisal, aloe, or jute-fibre
may be employed.
t
The material formed by any of the above described processes may be employed
for making such household and industrial articles as can be advantageously made
therefrom, such as table and floor covers, mats, collar boxes and string bowls, and
can also be employed for the manufacture of driving-belts and the like, by
subjecting several layers placed one above the other to a very strong pressure.
Having now particularly described and ascertained the nature of the said inven-
tion, and in what manner the same is to be performed, as communicated to
me by my.foreign correspondent, I declare that what I claim is :-
1. An improved material for protecting pneumatic tyres and the like, also
applicable for hose pipes and driving-belts, and for such household and industrial
articles as can be made therefrom, consisting of prepared cellulose and cotton fibre,
which are mixed together to form a thin paste, and then compressed with a thin
layer of flax, or other similar fibre, and an addition of a diluted solution of glue, or
other suitable binding substance, and which may afterwards be rendered waterproof
in the usual manner by saturating it with tannic acid, or a solution of alum or
acetate of alumina.
2. In the improved material described in Claim 1, the substitution, for flax, of the
fibre of manilla, sisal, aloe, jute or other like fibrous material.
3. In the improved material described in Claim 1, the substitution, for the
cellulose employed, of wood pulp, or esparto, and the replacement of the cotton fibre
by prepared linen material.
4. A modification of the process of manufacturing the material described in
Claim 1, consisting in omitting the use of the paste formed of cellulose and cotton
fibres, and using therefor several layers of a material laid one upon another, and
hydraulically compressed, which material merely consists of beaten fibres which
have been saturated with an indiarubber or glue solution, or a like adhesive
substance.
Dated this 9th day of November 1893.
WM. P. THOMPSON & Co.,
Agents for the Applicant.