Improvements in Tyres.
Year: 1896

page_text: PROVISIONAL SPECIFICATION.
Improvements in Tyres.
I, THOMAS ROUGHT JONES, of 27 Glazbury Road, West Kensington, in the
County of Middlesex, Gentleman, do hereby declare the nature of this invention
to be as follows:-
My invention relates to tyres consisting of an outer cover and an inner core;
the improvements being connected with the inner core.
The inner core is made of sponge rubber which is a substance containing
inummerable closed air cells. In order to produce the requisite resiliency of the
tyre the inner core is made larger than the outer cover and it is held compressed
within it. The air contained in the cells of the sponge rubber is thus in a state of
compression comparable with that of the air within an ordinary pneumatic tyre,
and as the cells are integral in themselves the deformation of the tyre when in use
is much more local and of less magnitude than in the case of the ordinary
pneumatic tyre. A tyre to carry a heavy rider should have a firmer resiliency
than one constructed to carry a rider of light weight; I obtain this by making the
air cells smaller or larger as required.
Dated this 23rd day of September 1896.
Improvements in Tyres.
THOMAS ROUGHT JONES 27 Glazbury Road West Kensington, Gentleman; 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:-
My Invention refers to improvements in Tyres for cycles, and other vehicles,
and consists essentially in forming the inner core of the said Tyre of material
known as spongy india rubber which is a substance containing innumerable closed
air cells. The object of my invention is to produce a tyre which will possess the
requisite amount of resilience, without necessitating any inflation which is the
case with ordinary pneumatic tyres, so that the effect of puncture will not interfere
with the working of the tyre. I will now proceed to describe my invention,
reference being had to the accompanying drawings of which:
Fig. 1 is a section.
Fig 2 is an elevation.

page_text: Fig. 4. An end view of the hinged mould.
Fig. 5. A section of same.
Fig. 6. A section showing the upper part of the mould removed.
In carrying out my invention I employ spongy india rubber, A, & compress
the same within a stocking, sleeve or casing, B. The said sleeve or casing may
be formed in one length or preferably in a number of lengths, sufficient to com-
pletely surround the periphery of the wheel. In order to compress the india
rubber within the sleeve or casing I employ a box or mould, C, formed with a
hinge, D, so that the said mould is capable of opening in halves. One end of
the mould is made with a spigot, E, on to which can be screwed a tubular mouth-
piece, F, into which is inserted a steel tube, G, and a Piston or Plunger H. The
stocking or sleeve, B, may be formed of india rubber, leather, canvass or other
textile fabric, and before being filled with the spongy india rubber, has one of its
ends closed, the other end being open. In order to fill the said sleeve and com-
press the rubber therein, I draw the same over the tube, G, and enclose the same
in the box or mould, C. The india rubber is inserted in the open mouth of the
said tube, and is forced inwards by the action of the Piston or Plunger, H.
When a sufficient quantity has been compressed within the tube, I cause the
Piston or Plunger to be retained in its position, and I withdraw the steel tube, G,
so that it will slide over the piston, and leave the sleeve or casing within the
mould, C, so that the compressed spongy india rubber is enclosed within the
sleeve. After the withdrawal of the steel tube, and whilst the pressure of the
piston or plunger is still maintained, I insert into holes formed at the end of
the box C, a pin or pins; I, which tend to retain the india rubber in
its compressed condition co that when the mouthpiece, F, is unscrewed and
the piston withdrawn, the open end of the sleeve or stocking can be closed
by stitching or other suitable means. Upon the withdrawal of the pin or
pins, I, the box or mould, C, can be opened, and the filled stocking or
sleeve removed. It will be understood that the air contained in the cells of
the spongy india rubber, is by the above means put into a state of compression,
comparable with that of the air within an ordinary pneumatic tyre, but with the
advantage, that in the event of puncture practically no loss of pressure results;
the one or more lengths of sleeve or stocking containing the compressed or
packed spongy rubber are placed around the periphery of the wheel, and are
covered by a cover such as, j, in the usual manner.
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.-
1. In a tyre for cycles or other vehicles the use of compressed spongy india rubber
substantially as described.
2. In a tyre for cycles or other vehicles in which compressed spongy india
rubber is employed, packing the said rubber within a case or cover substantially
as described for the purpose set forth.
Dated this Twenty-fourth day of July, One thousand eight hundred and
ninety seven.
THOMAS ROUGHT JONES.