An Improvement in Elastic Tyres for Wheels.
Year: 1899

page_text: Date of Application, 3rd Oct., 1893 -Accepted, 4th Nov., 1899
COMPLETE SPECIFICATION.
An Improvement in Elastic Tyres for Wheels.
We, JOSEPH DUDLEY PRESCOTT, Broker, of No. 27, Warren Avenue, Boston,
County of Suffolk, State of Massachusetts, United States of America, CHARLES
NEWCOMB BACON, Felt Manufacturer, of Winchester, County of Middlesex, State
of Massachusetts, United States of America, and ALBERT WILLIAM GRIFFITH,
Accountant, of 25, Dillingham Avenue, Beachmont, Boston, Suffolk County,
State of Massachusetts, United States of America, do hereby declare the nature
of this invention and in what manner the same is to be performed, to be particu-
larly described and ascertained in and by the following statement:
This invention relates to the construction of a resilient tyre for the wheel of
a, vehicle, with an inner homogeneous core of yielding material and an outer
covering for the core connected to the core in a permanent and water-proof
manner, as we shall describe referring to the accompanying drawings.
Figure 1 is a side elevation of a tyre according to this invention part of the
outer covering being broken away.
Fig. 2 is a part longitudinal section, shewing the means of connecting the
ends of the core which are shewn separated in Fig. 3. Fig. 4 is a cross-section
of the tyre and Figs. 5 and 6 are cross sections of the wheel rim before and after
the fixing of the tyre.
1 is the inner core of homogeneous yielding material and 2 is the outer case
or covering of rubber, which is vulcanised upon the core, completely enclosing
it as a water tight casing.
For bicycles and such like vehicles the tyre is made circular in cross section
and fixed on the rim of the wheel in the usual manner.
The core 1 is preferably made of a continuous strip of felt having a tenon 3
upon the one end and a mortice 4 in the other end to receive the tenon so as to
make a smooth and tight joint, the connection being completed by felt pins 5
passed through holes of the tenon and mortice.
The ends of the core being joined the covering 2 of rubber is vulcanised around
it, so that the completed tyre consists of a practically integral inner resilient core
completely and permanently protected by an outer case.
When the wheel has a metallic rim 6 provided with side flanges 7, 7, forming a
channel, the tyre is made, as shewn, in Fig. 4, with its inner surface 8 and
with sides 9 which converge toward the outer rounded tread 10. The flanges 7, 7
originally at right angles to the rim 6 have the tyre inserted between them, and
are then bent inwards, as shewn in Fig. 6 to clamp the sides 9 of the tyre and
prevent it from slipping off. The flanges however might in the first place be
turned inwards except at one place where the tyre might be inserted either bodily
or in sections and forced longitudinally into proper position, the opening being
then closed by turning in that part of the flange.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, we declare that what
we claim is;-
J

page_text: tenon, and the other with a mortice secured together by felt pins, and a rubber
covering vulcanised upon said core, as and for the purpose set forth.
Dated this 3rd day of October 1899.
ABEL & IMRAY,
Agents for the Applicants.