An Improvement in Pneumatic Tyres.
Year: 1896

page_text: PROVISIONAL SPECIFICATION.
An Improvement in Pneumatic Tyres.
"I WILLIAM HENRY BOYD of 46 Tremadoc Road Clapham in the County of
Surrey Gentleman out of business, do hereby declare the nature of this invention
to be as follows:-
A series of India Rubber Discs of any width from 1 inch upwards the walls of
whose circumference shall be of an inch thick or whatever thickness may be
necessary the ends of each Disc shall have a thin wall of India Rubber so that
Disc is really. a section of Tube both ends of which are stopped by a thin wall of
India Rubber. These Discs are to be placed within an outside cover and between
each Disc a very thin Washer of same size as Disc shall be placed made of a
material that will not attach itself to India Rubber. These Discs and washers
shall be pressed as closely together in the outside cover as it is possible to press
them and the complete Tyre placed upon the wheel. This Tyre will work equally
well with any compressed pneumatic tyre and will not require any air pump of
any extra pressure whatever.
Dated this 23rd day of June 1896
An Improvement in Pneumatic Tyres.
I, WILLIAM HENRY BOYD, of 46 Tremadoc Road Clapham, in the County of
Surrey, gentleman out of business, 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:--
A series of short hollow indiarubber, or other material cylinders of any length
from 1" upwards, made from tube of about " gauge or whatever other gauge may
be necessary according to the size and strength of the pneumatic tyre required is
dealt with in the following manner. Each end of each short cylinder is closed
by a thin disc of Indiarubber or other suitable material so that each section of
tube is a cylinder both ends of which are stopped by a thin wall of Indiarubber
or other material. These closed and airtight cylinders are placed within an outside
cover and between each short cylinder may be put a very thin washer or plate of
the same size and diameter as the cylinders. These washers or plates should be
of a material that will not attach itself to Indiarubber. These short cylinders and
the washers for plates between them are to be pressed closely together in the
outside cover so that they fit quite closely together. The complete tyre is then

page_text: ready to be placed upon the ring of the wheel. This tyre will work as well as any
pneumatic tyre and will not require any air pump or extra pressure, whatever.
The accompanying drawings illustrate the construction of the tyre made accord-
ing to my Invention. Fig. 1 shows the section of the short hollow cylinder of
rubber, having each end closed airtight, and Fig. 2 shows partly in section a rim
fitted with one of my tyres the part in section clearly showing how the short
cylinders are placed as closely as possible within the tubular cover, and the thin
separating plates of any suitable material, that will not attach itself to indiarubber
between each cylinder.
Having now particularly described and ascertained the nature of my said
Invention and in what manner the same is to be performed, I declare that what I
claim is:-
A pneumatic tyre constructed with short hollow airtight cylinders of indiarubber
closely packed within a suitable cover and with or without thin separating plates
between each of the short cylinders as described and illustrated.
Dated this 99nd do L 1007
THO. E. POTTS,
Agent for W. H. Boyd.