Improvements in or relating to the Wheels of Bicycles, Tricycles,.. and Road Carriages.
Year: 1892

page_text: Date of Application, 15th June, 1892-Accepted, 23rd July, 1892
COMPLETE SPECIFICATION.
Improvements in or relating to the Wheels of Bicycles, Tricycles,..
and Road Carriages.
I, JOSEPH EDWARD CLARKE of Camp Street Lower Broughton, Manchester,
in the County of Lancaster Manager 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 construction of wheels such as may be employed for
bicycles, tricycles, perambulators and light road carriages, and the object of this
invention is to obviate or minimise the vibration when running over newly made
roads or other uneven surfaces.
I attain this object by the means hereinafter described and as illustrated in the
accompanying sheets of drawings.
In the several views therein shown similar letters refer to similar parts.
In this invention I construct a wheel with the centre of the form ordinarily in
use for bicycles tricycles and light road vehicles, and with either a flat or a hollow
rim, or the centre may be of other preferred construction.
In the accompanying sheets of drawings
I
Fig. 1. is a transverse section, and Fig. 2. is a side view drawn partly in section
through line A, A, showing my invention applied to a wheel with a hollow rim.
construct the tread of the tyre a, by means of a hoop or band of india rubber that
is moulded so as to form a tyre of larger diameter than the rim of the wheel to
which it is intended to be applied, and with two internal parallel grooves b and 1
in which are placed two metallic rings e and c¹ of equal diameters; said rings may
be either solid or hollow.
I connect by means of transverse springs d, two metallic rings e, and e¹, that are
smaller in diameter than the aforesaid rings c and e¹ but of greater diameter than
the rim of the wheel.
I place these rings in the space that is between the tyre a and the rim f with
the back of the springs d curved outwards towards the inner surface a¹ of the tyre a
but not in contact therewith.
I attach the aforesaid tyre a to the rim by means of flaps a² formed of canvas
or other suitable material vulcanized with the tyre, and of sufficient width to
extend over the inner surface of the rim f to which it may be either cemented or
attached by lacing.
In a modification of my invention I place inverted springs e alternately with the
springs as shown in Figs. 3 and 4.
The springs e may be either of the form shown in Fig. 3 or may be as represented
in Figs. 5 and 6, or of other preferred form.
By the means hereinbefore described, when the tyre a is deflected by the weight
that is supported by the wheel, the inner surface or bearing a¹ of said tyre will
rest on the springs d, when the elastic tyre a, and the springs d, and also the
springs e if employed will act in combination.
Having now particularly described and ascertained the nature of this my said
invention and in what manner the same is to be performed I declare that what I
claim is
In a wheel that may be used on bicycles, tricycles and road carriages the con-
struction of a tyre by the combination of metallic rings such as c and c¹ placed in
internal grooves formed in an india rubber hoop or band such as a, metallic rings
such as e and e¹ placed internally and connected by transverse springs such as d,
or with transverse springs such as d and e placed alternately, and a bearing ar

page_text: formed to rest on and be supported by said springs d when the weight on the wheel
causes the hoop a to be depressed, for the purpose and in the manner substantially
as hereinbefore described.
Dated this 14th day of June 1892.
THOMAS PRESCOTT,
53, Arcade Chambers, St. Mary's Gate, Manchester, Agent for Applicant.