Improvements in Cycle Wheels.
Year: 1890

page_text: Date of Application, 8th Sept., 1890
Complete Specification Left, 8th June, 1891-Accepted, 11th July, 1891
PROVISIONAL SPECIFICATION.
Improvements in Cycle Wheels.
WILLIAM BENNETT 32 St. Peters Street Islington Mechanical Engineer do
hereby declare the nature of this invention to be as follows:-
My invention has for its object a means of making cycle wheels more elastic so
that they run with less vibration than when ordinary, pneumatic, or cushion tyres
are used, and to carry my improvements into effect, I construct my wheel as follows.
I use any ordinary hub, and spokes, and the spokes are attached in any of the
known ways to a tyre of the usual U form, but this tyre to which the spokes are
attached is of less diameter by about 2 inches than the wheel is required to be.
Outside of this tyre is another tyre of ✓ section, and to the outer part of this tyre
an ordinary rubber tyre is fixed. This tyre is about 2 inches larger in diameter
than the tyre affixed to the spokes, and thus there is a space of about one inch
between them all round. In this space I affix pieces of india rubber at intervals
all round, so as to form a cushion between the outer, and inner tyres, and thus
prevent all vibration of the outer tyre being communicated to the inner tyre.
Various modifications may be made for instance instead of the outer tyre being of
the section, it may be of the ordinary U section, and have hollow semi-spherical
cups attached to its inner side at intervals all round to hold india rubber balls
between the two tyres, or the india rubber may be all round between the outer, and
inner metal tyres, always preserving the essential features of my invention which
are the interposition of a cushion, or cushions between the actual working, or
running tyre, and an inner tyre to which the spokes are attached.
Dated this 8th day of September 1890.
H. T. TALLACK,
28, Hatton Garden, London, E.C., Agent for Applicant.
COMPLETE SPECIFICATION.
Improvements in Cycle Wheels.
WILLIAM BENNETT of 32 St. Peters Street, Islington, in the County of
London, Mechanical Engineer 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 :-
My invention has for its object a means of making cycle wheels more elastic, so
that they run with less vibration, than when ordinary, pneumatic or cushion tyres
are used and to carry my improvements into effect, I construct my wheel as
follows.
I use any ordinary hub and spokes and the spokes are attached in any of the
known ways to a tyre of the usual U form, but this tyre to which the spokes are
attached is of less diameter by about 2 inches than the wheel is required to be.
Outside of this tyre is another tyre of | section and to the outer part of this tyre
an ordinary rubber tyre is fixed. The outer metal tyre is about 2 inches larger in
diameter than the tyre affixed to the spokes, and thus there is a space of about one
inch between them all round, and in this space I affix pieces of india rubber at
intervals all round, so as to form a cushion between the outer and inner tyres and
thus prevent all vibration of the outer tyre being communicated to the inner tyre.
Various modifications may be made, for instance instead of the outer tyre being of
the section it may be of the ordinary U section and have hollow semi-spherical
CD027

page_text: cups attached to its inner side, at intervals all round to hold india-rubber balls
between the two tyres, always preserving the essential features of my invention
which are the interposition of cushions between the actual working or running tyre
and the bearing.
The accompanying drawings show several ways of carrying my invention into
effect.
Fig. 1. is an elevation of wheel, and
Fig. 2. n section of rim of Fig. 1.
A is the outer indinrubber tyre which runs on the road. B the outer metal
tyre, the inner cushions and D the inner metal tyre.
Fig. 3. is an elevation of a portion of rim with indiarabber having holes
transversely instead of longitudinally, thus forming a series of rings which make a
softer cushion for carrying lighter weights, these rings may be of round, oval,
snare or other suitable section; or may be shaped to fit over an ordinary
outer tyre instead of using a tyre of the section, and inside the hollow of
inner tyre.
Fig. 4 shews a portion of rim in elevation constructed to carry india rubber balls
between the two tyres, to act as the intermediate cushion, in this case semi-spherical
cups are attached to the inner side of the outer rim to hold the ball instead of
having the shaped rim.
Similar letters indicate corresponding parts throughout the drawings.
Various modifications may be made and any suitable intermediate cushions used,
for instance spongey rubber or various shapel blocks, always preserving tho
essential features of my invention.
I am aware that steel springs have been used between two tyres in a state of
tension, and 1 do not claim any intermediate springs in tension, I am also aware
that intermediate continuous cushions have becu used but neither of these forms
give the amount of elasticity effected by my invention, which is strictly confined to
a series of separate cushions in compression, screwed, studded, cemented, or, otherwise
suitably fastened between the two tyres.
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 :-
1st. The combination in connection with cycle and other wheels of a series of
intermediate cushions of indin rubber or other suitable material between the outer
running tyre and the part that directly supports the weight carried.
2nd. The use in combination with cycle and other wheels of a double tyre
with cushionable substance interposed between them in the form of blocks rings
or balls.
3rd. The use in combination with cycle and other wheels of a series of inner
cushions which do not take the wear of the road combined with a suitable outer
tyre fitted with indiarubber or other suitable material to take the wear.
Dated this 9th day of Tuns 1801
H. T. TALLACK,
28, Hatton Garden, London, E.C., Agent for Applicant.
H. T. TALLACK,
28, Hatton Garden, London, E.C., Agent for Applicant.