Improvements applicable to the Tyres of Bicycles and other Road Vehicles.
Year: 1898

page_text: Date of Application, 3rd June, 1898-Accepted, 23rd July, 1898
COMPLETE SPECIFICATION.
Improvements applicable to the Tyres of Bicycles and other Road
Vehicles.
We, JOHN TODD, of 32, Rupert Street, City of Birmingham, County of Warwick,
Metal Caster, and BOLLARD FELCE, of 96, Whitehead Road, Aston, jurta Bir-
mingham, in the County aforesaid, Grocer, 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 relates to the improvements hereinafter described which are
applicable to tyres of bicycles and other road vehicles and has for its object to
provide means whereby a puncture to the outside cover will in no way deflate the
whole tyre or cause the same to collapse.
Our improvements impart a proper amount of resiliency to the tyre without in
any way detracting from the strength thereof.
The nature of our invention will be more clearly understood from the accom-
panying drawings, the same letters of reference indicating similar parts
throughout.
Figure 1 represents in longitudinal section a portion of a tyre detached from
the rim or felloe of a wheel and Figure 2 the same tyre partly in vertical section.
The outside cover A may be any of the well known type of tyre covers.
B represents rubber balls or spherical air chambers inflated to a required pressure
and hermetically sealed. The said balls are arranged so as to circumvest the
inside of the tyre cover A.
The inside margins E of the cover A shown at Figure 2 are provided with
eyelets D, which are laced together with suitable laces C thus securing the balls
in their place within the cover A.
And an
It will be obvious that a puncture of the cover A will in probability only pierce
or injure one of the balls which will not cause the tyre to collapse.
injured ball may be expeditiously removed from the cover and a fresh one placed
therein. The pressure of air in the balls B, is such as to give a proper amount
of resiliency to the tyre.
Our improvements are applicable to any kind of tyre cover and the air chambers
aforesaid may be held therein by the edges of the tyre locking into the metal
or other rim or by any other means of attachment.
We have only thought it necessary to describe spherical balls but we wish it
to be understood that we may use any shape balls or air chambers without
departing from the nature of our invention.
It will be apparent that by our invention the inner air tube may be dispensed
with and thus greatly reducing the cost of the tyres.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed we declare that what
we claim is:-
The combination with a pneumatic tyre cover for bicycles and other road

page_text: vehicles a series of inflated rubber balls or their equivalent forming separate
air chambers and circumvesting the inside of the tyre cover substantially as
herein before set forth.
Dated this 2nd day of June 1898
WILLIAM HENRY BARACLOUGH,
36, Temple Street, Birmingham, Agent for the Applicants.