An Improvement in Pneumatic Tyres for Bicycles and other Vehicles.
Year: 1891

page_text: Date of Application, 15th Apr., 1891
Complete Specification Left, 15th Sept., 1891-Accepted, 3rd Oct., 1891
PROVISIONAL SPECIFICATION.
An Improvement in Pneumatic Tyres for Bicycles and other Vehicles.
I ADOLPH ISIDOR RATH of Spring Bank Mills Hyde in the County of Chester
India Rubber Manufacturer do hereby declare the nature of this invention to be as
follows:-
The objects of this invention are to give a certain amount of circumferential
rigidity to the tyre without decreasing its resilience, to increase the durability of the
tyre and to improve its power of ascending gradients and to prevent sideways
slipping.
I make the inner pneumatic tubular tyre of india rubber in the usual manner and
I provide it with suitable means of inflation and a valve to prevent the escape
of air as usual.
And for the purposes of my invention 1 protect this india rubber tube by
an outer casing of a composition formed by kneading in with india rubber dough,
cotton or other fibres, which will prevent it from stretching or giving way, at the
same time that it will be perfectly resilient and will also resist wear and tear much
better and will be much more difficult to puncture or cut.
I roll the rubber and fibre compound into sheets the thickness of which is
by preference so graduated that when cut into strips of a sufficient width to envelop
the india rubber pneumatic tube, the central part of the strip which meets the wear
and tear of the road shall be thicker than the other portions.
For the purpose of preventing side slipping I also corrugate, indent, emboss, or
otherwise roughen this part in any suitable form or pattern required during the
process of rolling.
The strip or band of rubber and fibre compound is of such a width that when laid
over the pneumatic tube its edges will meet at the back and can be joined together
by either sewing or lacing, the fibre giving such hardness and toughness to the
rubber that the stitches or laces will hold without fear of breaking or cutting the
material.
The protective compound forms (when calendered and vulcanized) a hard
substance similar to leather in many respects, but far more resilient, and will
be found to improve the qualities of the pneumatic tyre in many ways, as well as
prolonging its life, and when any repairs become necessary the covering can
be unsewn or unlaced and readily replaced. The tyre may be fixed to the metal
rim of the wheel by cement or any other suitable known means.
Dated this 14th day of April 1891.
GEO. DAVIES & SON,
4, St. Ann's Square, Manchester, Agents for the Applicant.
COMPLETE SPECIFICATION.
An Improvement in Pneumatic Tyres for Bicycles and other Vehicles.
I ADOLPH ISIDOR RATH of Spring Bank Mills Hyde in the County of Chester
India Rubber Manufacturer 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 :-
The objects of this invention are to give a certain amount of circumferential
rigidity to the tyre without decreasing its resilience, to increase the durability of
the tyre and to improve its power of ascending gradients and to prevent sideways
alipping.

page_text: I make the inner pneumatic tubular tyre of india rubber in the usual manner and
I provide it with suitable means of inflation and a valve to prevent the escape of
air as usual.
And for the purposes of my invention I protect this india rubber tube by an
outer casing of a composition formed by kneading in with india rubber dough
cotton, or other suitable fibres which will prevent it from stretching or giving way,
at the same time that it will be perfectly resilient and will also resist wear and tear
much better and will be much more difficult to puncture or cut.
I roll the rubber and fibre compound into sheets the thickness of which is
by preference so graduated that when cut into strips of a sufficient width to
envelop the india rubber pneumatic tube, the central part of the strip which meets
the wear and tear of the road shall be thicker than the other portion.
For the purpose of preventing side slipping I also corrugate, indent, emboss, or
otherwise roughen this part in any suitable form or pattern required during the
process of rolling.
The strip or band of rubber and fibre compound is of such a width that when
laid over the pneumatic tube its edges will meet at the back and can be joined
together by either sewing or lacing, the fibre giving such hardness and toughness
to the rubber that the stitches or laces will hold without fear of breaking or cutting
the material.
Or instead of making the inner tube of india rubber separately as above
described the compound protective coating may be made in the form of a tube and
lined on the inner surface in the process of manufacture with pure rubber which
will render it air tight and thus the protective compound forms (when calendered
and vulcanized) a hard substance similar to leather in many respects, but far more
resilient, and will be found to improve the qualities of the pneumatic tyre in many
ways, as well as prolonging its life, and when any repairs become necessary
the covering can be unsewn or unlaced and readily replaced.
The tyre may be fixed to the metal rim of the wheel by cement or any other
suitable known means.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
:―
A protective coating for pneumatic tyres of bicycles and other vehicles formed of
a composition made by kneading in with india rubber dough, cotton or other
suitable fibres substantially as hereinbefore described.
Dated this 14th day of September 1891
GEO. DAVIES & SON,
4, St. Ann's Square, Manchester, Agents for the Applicant.
GEO. DAVIES & SON,
4, St. Ann's Square, Manchester, Agents for the Applicant.