Improvements relating to Pneumatic and like Tyres.
Year: 1893

page_text: Date of Application, 6th June, 1893
Complete Specification Left, 6th Apr., 1894-Accepted, 12th May, 1894
PROVISIONAL SPECIFICATION.
Improvements relating to Pneumatic and like Tyres.
I, PRESTON DAVIES, of Town Mead Works, Wandsworth Bridge Road,
Fulham, in the County of Middlesex, Tyre Manufacturer, do hereby declare the
nature of this invention to be as follows:-
Instead of using canvas, webbing, or the like as the restraining medium for the
inflatable tube of a tyre, 1, according to this invention, use a net.
This net
solutioned or otherwise suitably held between two surfaces or sheets of rubber, the
size of the mesh varying in accordance with the thicknesses of rubber used. This
combination, which forms the outer casing or jacket of the tyre, may be secured to
the wheel rim in any suitable manner.
Dated this 5th day of June 1893.
COMPLETE SPECIFICATION.
Improvements relating to Pneumatic and like Tyres
•
I, PRESTON DAVIES, of Townmead Works, Wandsworth Bridge Road,
Fulham, in the County of Middlesex, Tyre 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 :-
Instead of using canvas, webbing, or the like as the restraining or confining
medium for the inflatable tube of a tyre, I, according to this invention use a net
composed of fine cord or the like or of other substance reticulated in character. To
the inner side of this net-like jacket I attach by solution a strip of rubber which
serves to cover the interstices in the net-work and to the outer side of such net-like
jacket I attach the usual outer rubber tread of the tyre.
In practice I have found that for a cycle tyre when the lining strip of rubber is
one sixteenth of an inch in thickness the interstices of the net-like foundation may
advantageously be from about one quarter to three-eighths of an inch, but I do not
wish to limit myself to such dimensions and measurements as the same may vary in
accordance with the strength or resiliency desired or the vehicle wheel to which
the tyre is to be attached. Generally, the size of the interstices of the net-like
jacket or confining medium and the thickness of the lining strip of rubber may be
increased proportionately to each other.
The constructing of a jacket or confining medium in a net-like form or reticulated
in character allows for the displacement of some of the confined inflating medium
contained within the tyre when any extra pressure is put upon it in use as for
example when passing over any unevenness or obstacle. With a tyre as heretofore
made with a canvas or fabric substance the effect upon such extra pressure
occurring has been only to further compress the inflating medium and harden the
tyre. With a jacket or confining medium of a net-like or reticulated character the
effect upon such extra pressure occurring is to force such air into the unrestrained
rubber-covered interstices.
A tyre constructed as herein described may be secured to the wheel rim in any
suitable manner.

page_text: 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
claim is
1. For a pneumatic or like tyre, a jacket or confining medium constructed in
net-like form or reticulated in character, substantially as set forth.
2. In a pneumatic or like tyre, a jacket or confining medium wherein a con-
siderable portion of the inflatable rubber tube is left unrestrained by canvas or
equivalent inelastic fabric, substantially as set forth.
3. In a pneumatic or like tyre, the combination of a net-like jacket or confining
medium having interstices, with a lining strip of rubber and the outer tread
attached to the respective sides thereof substantially as set forth.
Dated this 6th day of April 1894.
A. F. SPOONER,
124, Chancery Lane, W.C., Agent for the Applicant.