Improvements in the Construction of Wheels for Cycles and other similar Vehicles.
Year: 1895

page_text: Date of Application, 29th Nov., 1895
Complete Specification Left, 29th Sept., 1896-Accepted, 31st Oct., 1896
PROVISIONAL SPECIFICATION.
Improvements in the Construction of Wheels for Cycles and
other similar Vehicles.
I DAVID MAGILL of Derrydrumuck, Loughbrickland, Ireland do hereby
declare the nature of this invention to be as follows:-
:-
My invention relates to improvements in the construction of wheels for cycles
and other similar vehicles and has for its object to provide a strong spring wheel
which shall not be subjected to puncture as in the case of ordinary pneumatic tyred
wheels.
For this purpose I construct my improved wheels with a felloe composed of two
metal rings, one within the other, the inner one constituting the rim to which
the spokes are attached and the outer oue which is made of spring steel, forming
the tyre.
Between these two rings I place a series of spiral springs through the centre of
each of which passes a pin or rod formed with a head bearing against the inner
surface of the outer steel ring.
The lower end of each of these pins or rods passes through a perforated guide
or block formed on the outer surface of the rim. Each of the spiral springs
encloses the said guide or block and bears at its inner end against the rim of the
wheel and at its outer end against a plate formed with a longitudinal slot through
which the guide pin passes so as to permit of end play, such plate being bent
outwards at each end and secured to the outer metal ring or tyre.
The number of spiral springs employed will vary according to the size of the
wheel and the weight it is required to carry.
As my improvements are capable of some modification without departing from
the principle thereof I do not restrict myself to the precise form or placement of
the parts thereof.
Dated this 29th day of September 1895,
J. B. FLEURET,
5 Hatton Garden, London, Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in the Construction of Wheels for Cycles and
other similar Vehicles.
I DAVID MAGILL of Derrydrumuck, Loughbrickland, Ireland 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 the following statement:-
This invention relates to improvements in the construction of wheels for light
vehicles such as velocipedes and has for its object to so form the tyre that it shall
have the spring or resiliency of the ordinary pneumatic tyre but at the same time
be free from the objections to the latter of liability to puncture.
For this purpose I construct my improved wheels with a felloe or rim and tyre
composed of two metal rings placed one within the other a certain distance apart
[Price 81.1

page_text: the inner one constituting the rim to which the s pokes are attached, and the outer
one which is made of spring steel, forming the tyre.
Between these two rings I place a series of spiral springs through the centre of
each of which passes a pin or bolt formed with a head bearing against the inner
surface of the outer steel ring.
The lower or inner end of each of these pins or bolts passes through a perforated
guide or block formed with or attached to the outer surface of the rim. These
guides or blocks are enclosed by the spiral springs which bear at their inner ends
against the rim of the wheel and at their outer ends against a plate attached to the
outer ring or tyre opposite each spring. These plates are each formed with a
longitudinal slot through which the guide pin or bolt passes, the said slots permitting
of end play or movement to the tyre.
Instead of attaching the said plates to the outer ring by means of screws or
rivets I may form them as a sort of clip to clip the said ring either tightly or
loosely as required.
In the accompanying drawings illustrating my invention
Figure 1 is a side view of my improved wheel, the rim and tyre only of which
are shown.
Figure 2 is a section of a portion of the rim and tyre showing one of the spring
attachments,
Figure 3 is a view at right angles to Figure 2 and
Figure 4 is a plan of one of the spring pin attachment plates.
Figures 5 & 6 show a modified form of spring attachment.
a is the outer steel ring constituting the tyre and b is the inner rim or ring of the
wheel. The spokes are attached to this ring in the ordinary manner but are
not shown in the drawing. c are the spiral springs bearing at their inner ends
against the rim b and at their outer ends against plates d attached to the outer
ring a as shown in Figure 2. The said plates are each formed with the slot d¹
through which passes the pin or bolt e whose head el bears against the inner
surface of the ring a. The spiral springs e surround the pins or bolts e and the
latter pass through guides or blocks f formed with or attached to the outer surface
of the rim b.
Instead of riveting or screwing the plates d to the ring a I may form them so as
to clip the said ring on each side as shown in Figures 5 & 6 or in any other
suitable manner, the said plates being either attached to the ring or fitted loosely
thereto as required.
By means of my invention a strong and resilient tyre is provided, the number
of springs employed in which is regulated according to the size of the wheel and
the weight it is required to carry.
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 the construction of wheels for cycles and other vehicles the combination
with the rim or ring 6 of the outer steel ring a, spiral springs c, plates d formed
with slots d', pins or bolts e provided with heads e¹ and guides or blocks f sub-
stantially as described and for the purposes specified.
2. In wheels as above claimed the modification as described and shown with
reference to Figures 5 & 6 of the drawings.
3. The improved construction of cycle and other wheels substantially as
described and shown in the drawings.
Dated this 29th day of September 1896.
J. B. FLEURET,
5 Hatton Garden, London, Agent for the Applicant.