Improvements in Cycle and other Axles and in the Ball Bearing Cones for the same.
Year: 1899

page_text: PROVISIONAL SPECIFICATION.
Improvements in Cycle and other Axles and in the Ball Bearing Cones
for the same.
We, WILLIAM Bown, of Overdale Villas, Sutton Street, Aston juxta Birming-
ham, Works Manager, and WILLIAM BOWN LIMITED, of 308, Summer Lane,
Birmingham aforesaid, Manufacturers, do hereby declare the nature of our said
invention to be as follows:
Our invention has for its object improvements in axles and in the cones for the
same and has special reference to the crank axles of velocipedes by which we are
enabled to easily and securely fix the cones onto the axles but can with equal
advantage be applied to other axles where cones are used.
In crank axles as at present used the cones are formed solid with the axle and
as these cones have to be hardened it necessitates the axle being hardened also
which frequently causes the axles to break. Then again if one of the cones.
become damaged through any cause the whole of the axle has to be replaced which
is a considerable expense.
Now according to our invention we form the cones separate from the axle so
that they can be hardened independently of the axle and in order to securely
fix the cones onto the axle we form a shoulder around that part of the axle on
which the cones fit. We then form two flats on each of these shoulders onto
which two projects formed on the back of each cone fits. It will thus be seen that
when these cones are fitted in position the projecting portions will fit onto the
flats on the shoulders formed on the axle the other portion of the backs of the
cones fitting flush against these shoulders by which means the cones are rigidly
and securely held in position.
T
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1000
WILLIAM BOWN,
WILLIAM BOWN LIMITED.
By George Barker,
Fellow of the Chartered Institute of Patent Agents,
Agent for Applicants, 77, Colmore Row, Birmingham.

page_text: of 308, Summer Lane, Birmingham aforesaid, Manufacturers, do hereby declare
the nature of our said 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 has for its object improvements in cycle and other axles and in
the ball bearing cones for the same and has special reference to the crank axles
of velocipedes by which we are enabled to easily and securely fix the cones onto
the axles but can with equal advantage be applied to other axles where cones are
used.
In crank axles as at present used the cones are formed solid with the axle and
as these cones have to be hardened it necessitates the axle being hardened also
which frequently causes the axles to break. Then again if one of the cones
become damaged through any cause the whole of the axle has to be replaced which
is a considerable expense.
Now according to our invention we form the cones separate from the axle so
that they can be hardened independently of the axle and in order to securely fix
the cones onto the axle we form a shoulder around that part of the axle on which
the cones fit. We then form two flats on each of these shoulders onto which two
projections formed on the back of each cone fits. It will thus be seen that when
these cones are fitted in position the projecting portions will fit onto the flats
on the shoulders formed on the axle the other portion of the backs of the cones
fitting, flush against these shoulders by which means the cones are rigidly and
securely held in position.
In order that our invention may be more clearly understood and easily carried
into practical effect we have appended hereunto a double sized sheet of drawings
upon which we have illustrated examples of our method of fixing cones onto
their axles.
Figure 1 is a view of a bottom bracket or crank axle of a cycle shewing the
cones fixed according to our invention.
Figure 2 is a plan view of Figure 1 shewing one of the cones detached.
Figure 3 is a cross sectional view taken on the line ab of Figure 1.
Figure 4 is an end view of one of the cones as shewn at Figure 1.
Figure 5 is a view of an axle shewing a slight modification of our method of
fixing the cones.
Figure 6 is a plan view of Figure 5.
Figure 7 is a cross sectional view taken on the line -y of Figure 6.
Figure 8 is a view of an axle shewing a further modification of our method of
fixing the cones.
Figure 9 is a cross sectional view taken on the line 1-2 of Figure 8 with the
cone A removed.
Figure 10 is an end view of one of the cones as shewn at Figure 8.
Figures 11 & 12 shew the application of our method of fixing a cone to the
pedal spindle and hub spindle respectively of a cycle.
In carrying our invention into practice we form the cones A and A¹ separately
from the axles B so that they may be hardened and tempered independently of
the axle and they inay when damaged or worm be easily removed and new cones
fitted onto the same axle thus avoiding the expense of a new axle. In order to fix
these cones onto the axle we form the shoulders b' on that part of the axle upon
which the cones are fixed and against which they fit and on these shoulders we
form the flats 62 as clearly shewn at Figures 1 and 2. The backs of the cones
and A' are formed with the projections a³ as shewn at Figures 3 and 4 which when
the cones are fitted onto the axle flush up against the shoulders b¹ fit over or
upon the flat portions 62 of these shoulders by which means the cones are rigidly
and securely held in position as clearly shewn at Figures 12 and 3.
At Figures 5, 6, 7, 8, 9, and 10 we have shewn modifications of our mode of
fixing the cones A and A¹ onto the axle B. In the method as shewn at Figures 5
6 and 7 we form only one flat 62 on each of the shoulders b' on the axle and only

page_text: one projection 2 on the backs of the cones A and A' as clearly shewn at Figures 5
and 7. These cones are then placed onto the ends of the axle the backs of the
cones fitting flush against the shoulders and the projections a² fitting over or
upon the flats 6 by which means the cones are rigidly and securely held in
position. In the method as shewn at Figures 8, 9 and 10 we enlarge the shoul-
ders b' on the axle B and form on the outer faces of these shoulders the projection
or projections 63 and on the backs of the cones A and A¹ we form the recess or
recesses or rabbited portion or portions a³ as clearly shewn at Figure 10 onto
which the projecting portions 63 of the shoulders 61 when the cones are fitted flush
against these shoulders fit thereby rigidly and securely holding or fixing the
cones in position.
At Figures 11 and 12 we have shewn our method of fixing the cones on the
pedal spindle and on the hub spindle respectively of a cycle. In the method as
shewn at Figure 11 the cone A is formed with the projecting portions a² which
when the cone is placed in position fit upon or over the flats 6 formed at the
back of the shoulder or enlargement at the end of the spindle S in a similar
manner as shewn at Figures I and 2. The cone A¹ which is fitted onto the hub
spindle H as shewn at Figure 12 is also formed with the projecting portions a³
fitting onto flats made on the shoulder h¹ formed near the end of the spindle.
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:-
CLAIMS.
First: The improvements in cycle and other axles and in the ball bearing
cones for the same consisting essentially in forming the cones separate from the
axle and fitting such cones onto the axle so that when placed in position they do
not revolve in the manner and for the purpose substantially as herein set forth
and as shewn upon the accompanying sheet of drawings.
Second: Securing bearing cones on their axle by forming a projection or pro-
jections such as on the back of the cone which projection or projections fit over
or upon a flat or flats such as 62 formed on a shoulder such as bon the axle and
against which shoulder the cone fits in the manner and for the purpose substan-
tially as herein set forth and as shewn upon the drawings at Figures 1, 2, 3, 4,
5, 6, 7, 11, and 12.
Third Securing hearing cones or their axles by forming a shoulder on the
axle having a projection or projections such as 63 which projections fit over or
upon a flat or flats formed at the back of the cone in the manner and for the
purpose substantially as herein set forth and as shewn upon the drawings by
Figures 8, 9 and 10.
1000
WILLIAM BOWN, and
WILLIAM BOWN, LIMITED.
By George Barker,
Fellow of the Chartered Institute of Patent Agents,
Agent for Applicants, 77, Colmore Row, Birmingham.