Framways, also Applicable to Belt Pullies.
Year: 1886

page_text: Framways, also
Applicable to Belt Pullies.
I, WILLIAM PAGET HOBLYN of The Fir Hill, St Columb, in the County of
Cornwall, J.P. for Cornwall, do hereby declare the nature of my 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 my present invention I construct wheels for velocipedes and other
vehicles, whether for common roads, railways or tramways, with an annular spring
or springs surrounding the felloe or periphery, at a small distance therefrom, so that
the wheel is suspended within such spring when running on the ground or rails,
whereby great elasticity and smoothness of motion is obtained, enabling the wheel
to pass readily over moderate sized obstacles without inconvenient shock. The
arrangement of the annular spring and its, connection to the felloe or other part of
the wheel may be effected in various ways some of which are shewn by way of
example on the accompanying drawings.
Fig. 1 shews a part side elevation and Fig. 2 a cross section of the simplest
construction, in which A is the ordinary trough shaped felloe of a velocipede wheel
and B a circular steel spring surrounding the same and held concentrically thereon
by means of loose loop-shaped clips C embracing the spring and felloe, so that as
the spring is pressed inwards towards the felloe when in contact with the ground,
the loop will slide inwards with it, being guided in such motion either by guide
pins D on each side thereof carried by a plate E fixed to the felloe, or by a pin D¹
on the said plate passing through a slot in the loop; as shewn in dotted lines,
Figs. 3 and 4 shew respectively a part side view and a cross section of another
arrangement in which the spring B is formed of several hoops instead of only one,
which are held on the felloe A by means of a forked connecting piece C sliding
through a guide E fixed to the felloe. F is an ordinary india rubber tyre cemented
to the spring, which may also be applied to the first described arrangement. The
firmly securing of the india rubber tyre may also be insured by means of metals
clips G fixed at intervals to the spring B, as shewn at Fig. 5.
In the modification shewn in part side view and cross section at Figs. 6 and 7,
the spring B is made of circular cross section, (or it might be formed of a number
Dries 631

page_text: of springs of small section grouped in to cable form) and is provided with a
covering of india rubber or leather F.
The connecting piece C which works in a guide E, as before is formed with a
loop embracing the spring and has its inner end beld by a blade spring H, bearing
against the inner surface of the felloe A.
.
Fig. 8 shews a part side view of an arrangement in which the spring B receives
further support from blade springs I, secured at the inner end to a felloe A and
embracing the spring B with a forked outer end. C are the forked connecting
pieces, sliding through guides E on the felloe. G are clips for firmly holding the
rubber tyre F. Fig. 9 shews a part side view and Fig. 10 a section of a modifi-
cation of the last described arrangement, in which the felloe A is made solid, the
spring I being fixed to the outer surface thereof, while the connecting piece C is
forked and is guided by a pin D on the felloe, passing through slots in the fork.
Fig. 11 shews a part side view and Fig. 12 a cross section of an arrangement in
which helical springs I are employed in place of the blade springs, these springs
being provided at each end with a pin fixed thereto, and secured respectively to
the socket K fixed in the felloe, and to the circular spring B, which in this case is
shewn imbedded in the rubber tyre F. In this case separate guides and connecting
pieces for the spring B are dispensed with. Other forms of springs may be used
for supporting the annular spring, such as blocks of indiarubber.
When used for railway wheels, the spring may be formed with the necessary.
flange instead of the wheel, but by preference the flange is formed on the wheel and
is made of increased depth so as to project sufficiently beyond the spring as shewn
at Fig. 13. The rails must of course be made of sufficient height to allow for the
vertical play of the flange in this case.
It will be evident that the invention may also be applied with advantage to belt
pullies to avoid jerky motion and unequal strains, the belt being applied to the
surface of the annular spring which may be connected to the pulley in any of 'the
above described ways, so as to be capable of yielding somewhat to any jerky
motion of the belt without imparting the same to the pulley.
Having now. particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is
1. The use, in combination with wheels for velocipedes and other vehicles of an
annular spring surrounding the felloe of the wheel and secured to it at a small
distance therefrom in such manner that the wheel is suspended in the annular
spring which serves as an elastic tyre to the same, substantially as herein
described.
2. The various arrangements of the annular springs such as are referred to in
the preceding claim and the modes of connection thereof to the felloe of the wheel
herein described with reference to the accompanying drawings.
3. In combination with annular springs such as are referred to in the first claim,
the use of supporting springs, for affording them an elastic support from the tyre;
substantially as described.
4. The use of annular springs such as are referred to in the first claim, in
combination with belt pullies, substantially as herein described.
ABEL & IMRAY,
Agents for the Applicant.