Improvements in Wheels for Cycle and other Vehicles.
Year: 1896

page_text: Date of Application, 9th Oct., 1896
Complete Specification Lift, 23rd June, 1897-Accepted 24th July, 1897
Improvements in Wheels for Cycle and other Vehicles.
We, DAVID COLLINS, of 2, Sussex Road, Southampton, Commercial Clerk, and
WILLIAM HENRY WALLIS, of 40, Northam Road, Southampton, Cycle Maker, do
hereby declare the nature of this invention to be as follows:-
According to this invention a pneumatic tube and a cover having spring edges
are employed in conjunction with a trough-shaped rim having its edges turned
inwards to form hooks. The length of the spring edges of the cover is such that
before the inflation of the pneumatic tube commences they lie at the bottom of the
trough but by the inflation they are stretched and forced outwards keeping in
contact with the sides of the trough until they reach and are secured by the
hooked rim.
By making the cover of sufficient thickness and forming shoulders upon it the
arrangement is rendered suitable for use either as a pneumatic or as a cushioned
tyre, the springs when the pneumatic tube is deflated or absent drawing the cover
into the trough until its shoulders rest upon the edges of the rim. By this means
the accidents commonly caused by the puncture of the pneumatic tube are avoided
Dated this 8th day of October 1896.
D. COLLINS.
W. H. WALLIS.
Improvements in Wheels for Cycle and other Vehicles.
We, DAVID COLLINS, of 2 Sussex Road, Southampton, Commercial Clerk, and
WILLIAM HENRY WALLIS, of 40 Northam Road, Southampton, Cycle Maker, 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:-
According to this invention a pneumatic tube and a cover having spring edges
are employed in conjunction with a trough-shaped rim having its edges turned
inwards to form hooks. The length of the spring edges of the cover is such that
before the inflation of the pneumatic tube commences they lie at the bottom of the
trough but by the inflation they are stretched and forced outwards keeping in
contact with the sides of the trough until they reach and are secured by the
hooked rim.
By making the cover of sufficient thickness and forming shoulders upon it the
arrangement is rendered suitable for use either as a pneumatic or as a cushioned

page_text: tyre, the springs when the pneumatic tube is deflated or absent drawing the cover
into the trough until its shoulders rest upon the edges of the rim. By this means
the accidents commonly caused by the puncture of the pneumatic tube are avoided.
Figure 1 is a transverse section of a wheel made according to this invention.
Figures 2 and 3 are similar views of a modification the tyre in Figure 2 being
inflated and in Figure 3 deflated.
a is a trough shaped metal rim having its edges turned over to form hooks a¹.
b is an outer tyre or cover formed as usual of substantially inextensible material such
as canvas covered with indiarubber and b' are springs embedded in or fixed to its
edges. The springs b' are preferably continuous helical wire springs extending all
round. is an internal pneumatic tube of ordinary construction. 6 Figures 2
and 3 are shoulders formed on the cover which when the tube c is deflated are
pulled by the springs b' down on to the hooks a¹ as shown in Figure 3.
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 :-
1. The combination of a concave trough-shaped rim having inwardly turned
hooks at its edges, an outer tyre or cover, helical springs at its edges held under
tension when in the hooks, and whose unstretched length is not greater than the
smallest circumference of the inside of the rim, so that when the tyre is deflated
the odges automatically move to a central position in the rim, and an inner
pneumatic tube bearing when inflated upon the inside of the trough and pressing
the spring edges of the tyre into the hooks.
2. The combination of a trough shaped rim, hooks at its edges, an outer tyre
or cover, springs at its edges, shoulders on it and an inner pneumatic tube, tho
shoulders being so placed that when the tube is deflated they rest on the hooks.
3. The combination of a concave trough shaped rim having inwardly turned
hooks at its edges, an outer tyre or cover, helical springs at its edges which are
under tension when the edges are in the hooks and which tend to draw the edges
of the tyre to the central portion of the trough, and means for inflating the tyre."
4. The combination of a trough shaped rim, hooks at its edges, an outer tyre or
cover having beaded edges, shoulders on the tyre between its tread and the edges,
and means for inflating and deflating the tyre to cause the beaded edges to
enter the hooks or to permit the shoulders on the tyre to rest on the hooks,
substantially as described.
Dated this 21 of day of June 1897