Improvements in the Hubs of Driving Wheels and the like, especially applicable to Bicycles.
Year: 1898

page_text: Date of Application, 24th Oct., 1898
Complete Specification Left, 20th Mar., 1899-Accepted, 6th May, 1899
PROVISIONAL SPECIFICATION.
Improvements in the Hubs of Driving Wheels and the like, especially
applicable to Bicycles.
We, WALTER ALLSOP, of 45, Brunswick Place, City Road, London, E.C.,
Engineer, WILLIAM GEORGE GROVE, of 7, Denbigh Road, Bow, London, E.,
Engineer, and WILLIAM LUGTOx, of 123, Old Street, London, E.C., Engraver, do
hereby declare the nature of this invention to be as follows;-
-
Our invention relates to improvements in hubs of driving wheels and the like,
and is especially useful in connection with the wheels of cycles and motor cars
driven by chain gearing. By our invention we are enabled to remove the wheel
without disturbing or in any way interfering with the chain or gear case, which
remain exactly where they were before the wheel was removed. The advantages
of our invention are especially manifest when the wheel requires to be quickly
removed and replaced, such as in case of puncture of the tyre or breakage of a
spoke. It is also possible to exchange the wheel for another one in case of necessity.
We may carry out our invention as follows, taking, for example, a cycle rear
wheel hub. We may cut off that part of the spindle which projects beyond the
cup on the chain wheel side of the hub, thus not interfering with the usual bear-
ing. The chain wheel which has hitherto been firmly fixed upon the driving wheel,"
is, according to our invention, made detachable, and is itself provided with a suit-
able ball race, in which works the cut-off portion of the spindle aforesaid, which
has previously been provided on its inner end with a pair of cones. The end of the
hub (being of the nature of a disc) is left flush with the cut-off portion of the
spindle, and is preferably slightly bevelled or coned on its circumference so as to
be largest at its extreme edge. The object of this is to provide additional security
to the fastening device, which may consist of a metal strap or coupling as follows.
Said strap may consist of two semi-circular parts, one half being fixed to the inner
side of the chain wheel, the other half being free of the chain wheel, but hinged
at one end to the fixed half, while the two halves of the strap are united at their
ends by means of a screwed bolt passing through two holes therein, or an ordinary
cotter pin or other fastening may be used. To prevent the strap from turning
upon the hub, we may provide within the strap a projection for engaging within
a corresponding hole, in the disc, or interlocking flutings or any other means of
locking may be adopted. I prefer that the space enclosed by said strap be conical
in form, so as to bind firmly upon the bevelled or coned surface of the hub end.
When the chain wheel is in position and it is desired to remove the driving
wheel from the frame, it is only necessary to unfasten the strap which couples the
chain wheel and to loosen the nut on the spindle at the other end of the hub, when
the driving wheel can be drawn away free, leaving the chain wheel behind.
In action, our invention is found to work thoroughly well, the wheel always
running perfectly freely, and yet being capable of detachment without any
difficulty.
1000

page_text: Improvements in the Hubs of Driving Wheels and the like, especially
applicable to Bicycles.
We, WALTER ALLSOP, of 45, Brunswick Place, City Road, London, E.C.,
Engineer, WILLIAM GEORGE GROVE, of 7, Denbigh Road, Bow, London, E.,
Engineer, and WILLIAM LUGTON, of 123, Old Street, London, EC., Engraver, 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:
Our invention relates to improvements in hubs of driving wheels and the like,
and is especially useful in connection with the wheels of cycles and motor cars
driven by chain gearing. By our invention we are enabled in an improved manner
to remove the wheel without disturbing or in any way interfering with the chain
or gear case, which remain exactly where they were before the wheel was removed.
The advantages of our invention are especially manifest when the wheel requires
to be quickly removed and replaced, such as in case of puncture of the tyre
or breakage of a spoke. It is also possible to exchange the wheel for another one
in case of necessity.
We may carry out our invention as follows, taking, for example, a cycle rear wheel
hub, and will refer hereinafter to the accompanying sheet of drawings, on which
Figure shows (in section) our invention as applied to a cycle rear wheel hub,
Figures 2, 3, and 4 showing the parts separated.
We may cut off that part of the spindle A which usually projects beyond the
cup B on the chain wheel side of the hub, but leave intact the usual ball bearing
composed of the axle cone 6 and the cup B. The chain wheel C is, according to
our invention, made detachable, and is itself provided with a suitable ball race !),
in which works the cut-off portion A of the spindle aforesaid, which has previously
been provided on its inner end with a cone a. The end of the hub adjacent to the
chain wheel is left flush with the cut-off portion of the spindle, as indicated on
line (see also Figure 2), and is preferably slightly bevelled or coned on its
circumference E so as to be largest at its extreme edge. The object of this is to
provide additional security to the fastening device, which consists of a metal strap
or coupling as follows. Said strap is made up of two semi-circular parts F and G
one half (shown more clearly in Figure 3) F being fixed to the inner side of the
chain wheel C, the other haff G being free of the chain wheel, but hinged at one
end to the fixed half as at c, while the two halves of the strap are united at their
other ends by means of a screwed bolt H (shown separately by Figure 4) passing
through two holes hh therein, or an ordinary cotter pin or other fastening may be
used. To prevent the strap from turning upon the hub, we may provide within
the strap a projection f (Figure 3), for engaging with a corresponding hole g
(Figure 2) in the disc, or interlocking flutings or any other means of locking may
be adopted. I prefer that the space enclosed by said strap be conical in form, so
as to bind firmly upon the bevelled or coned surface of the hub end.
When the chain wheel is in position and it is desired to remove the driving
wheel from the frame, it is only necessary to loosen the bolt H or equivalent fas-
tening and free the strap which couples the chain wheel and also to loosen the nut
on the spindle at the other end of the hub, when the driving wheel can be drawn
away free, leaving the chain wheel behind.
In action, our invention is found to work thoroughly well, the wheel always
running perfectly freely, and yet being capable of detachment without any difficulty

page_text: 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 method of mounting the chain-wheel of a bicycle or like vehicle upon
the hub of the driving wheel by means of a strap or coupling such as F.G carried
upon said chain-wheel and adapted to bind firmly upon the end of the hub and
capable of being detached at will, the spindle of the driving wheel being divided
into two lengths, one lying within the hub proper and the other having an indepen-
dent bearing in the chain-wheel, for the purpose and substantially in the manner
described.
2. The improvements in the hubs of driving wheels of bicycles or like vehicles
consisting of a chain-wheel detachable from the end of the hub in combination
with a spindle divided into two parts, one of said parts carrying the chain-wheel
and the other part of the hub proper, substantially as herein before described.
STANLEY, POPPLEWELL & Co.,
61 & C2, Chancery Lane, (7 & 8, Southampton Buildings), London, W.C.,
Chartered Patent Agents.