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

page_text: Date of Application, 6th June, 1896
Complete Specification Loft 21st Oct 1206 Accepted 19th Dec. 1898
PROVISIONAL SPECIFICATION.
Improvements in Wheels for Cycles and other Vehicles.
1, SAMUEL WATKIN, CARLTON, of 50 Lime Street, in the City of London,
Engineer, do hereby declare the nature of this invention to be as follows:-
This invention has reference to improvements in wheels for cycles and other
vehicles provided with pneumatic hubs or centres of the kind described in the
Specification of my Application for Letters Patent No. 22520 dated 25 November 1895
and comprising an inner flanged ring rotatably mounted upon a fixed axle, an
outer ring to which the spokes of the wheel are attached and an intermediate
pneumatic ring located between the inner and outer rings, and has for objects to so
construct such wheels that the pneumatic ring cannot become unduly compressed
or crushed between the inner and outer rings when the wheel is in use, and also to
provide means whereby, in the event of the said pneumatic ring becoming damaged
by wear or other cause to such an extent as to impair its proper action, the inner
and outer rings can be rigidly connected together so as to enable the wheel to be
still used until such a time as the damaged pneumatic ring can conveniently be
repaired or replaced.
To prevent undue compression of the pneumatic ring, the adjacent flanges of the
inner and outer rings are so constructed and arranged that the amount of radial
movement of the one relatively to the other is limited sufficiently to prevent undue
compression of the pneumatic ring. This may be effected in various ways.
According to one arrangement, the inner side of each flange of the inner ring is
formed with an annular shoulder or projection so arranged relatively to the outer
ring that after the two rings have moved toward each other to a certain extent,
further relative radial movement of the two rings and consequent damage of the
interposed pneumatic ring are prevented by the outer ring coming into contact
with the annular shoulder or projection.
To enable the wheel to be used after the pneumatic ring has become damaged
the inner and outer rings are so constructed and arranged that they can be rigidly
connected together and, held concentrically with each other. This may be effected
in various ways. According to one arrangement one end of the outer ring it may
conveniently be the end opposite that carrying the chain wheel, and the adjacent
flange of the inner ring, are made of the same external diameter and correspondingly
corrugated or formed with corresponding ridges or grooves on their outer surfaces,
and on the end of the outer ring is fitted a laterally movable locking ring formed
internally with corresponding corrugations, ridges, or grooves and provided with
fastening means such as set screws or the like, the arrangement being such that the
locking ring can be fixed either in its inoperative position, that is to say clear of
the flange of the inner ring or can be moved laterally so as to surround both the
outer ring and the flange of the inner ring and by simultaneously engaging with the
ridges or projections on each, lock the two concentrically together and so enable
the wheel to be used without the pneumatic ring coming into action the locking
ring being fixed in its operative position by the set screws.
Dated this 6th day of June 1896.

page_text: chain wheel 6, and the adjacent flange 1 of the inner ring of the same external
diameter and correspondingly corrugated or formed with corresponding ridges or
grooves on their outer surfaces, and fitting on the corresponding end of the outer
ring 5 a laterally movable locking ring 9 formed internally with corresponding.
corrugations, ridges, or grooves and provided with fastening means such as set.
screws 10 or the like. The arrangement is such that the locking ring 9 can be
fixed either in its inoperative position, that is to say, clear of the flange 1 as.
shown, or can be moved laterally so as to surround both the end of the ring 5 and
the flange 1 and by thus simultaneously engaging with the ridges or projections
on each, lock the two concentrically together and so enable the wheel to be used
without the pneumatic ring coming into action. The locking ring 9 is fixed in its.
operative position by tightening the set screws.
Having now particularly described and ascertained the nature of the said inven-
tion and in what mauner, the same is to be performed I declare that what I
claim is :-
1. In a wheel for a cycle or other vehicle a pneumatic hub comprising an inuer
ring with side flanges constructed with shoulders such as 1 and an outer ring
adapted to take when necessary a bearing against the said shoulders in suchwise as.
to prevent undue compression of the interposed pneumatic ring 7 as hereinbefore
described with reference to the accompanying drawings.
2. In a wheel for a cycle or other vehicle, the improvements hereinabove.
described and illustrated in the accompanyings drawings according to which the
inner and outer rings 1 and 5 of the hub and a locking ring applied to one of them.
are so constructed and arranged that the said rings can when desired be locked and
held concentrically together as set forth for the purpose specified.
3. The hereinabove described improved pneumatic hub for a cycle or other
vehicle wheel
Dated this 20th day of October 1896.
For the Applicant,
W. LLOYD WISE,
46 Lincoln's Inn Fields, London, W.C., Chartered Patent Agent.