Improved Means for Adjusting the Bearings of Bloyole Wheels and of Certain other Revolving Parts.
Year: 1895

page_text: Date of Application, 21st Oct., 1895
Complete Specification Left, 21st July, 1896-Accepted, 22nd Aug., 1896
PROVISIONAL SPECIFICATION.
“Improved Means for Adjusting the Bearings of Bloyole Wheels and
of Certain other Revolving Parts.
We, JAMES DOHERTY, of 67, Vittorin Street, in the City of Birmingham,
Cycle Fittings Manufacturer, and WILLIAM CALCOTT, of The Grove, Foleshill
Road, Coventry, Warwickshire, Cycle Manufacturer, do hereby declare the
nature of this invention to be as follows :—
This invention consists of the hereindescribed improved means for aljusting
the cones of ball bearings or coned boarings of bicycle wheels and of certain
other revolving parts such as the crank axle and other parts of bicycles and
other velocipodes and parts of machinery which are arranged to revolve upon a
stationary axis or spindle. By this invention wo ensure the two cones boing
adjusted along the spindle simultaneously and to the same amount thereby pre-
venting one of the cones being moved farther along the spindle than the other
which would have the detrimental effect of moving the wheel sideways along the
spindle and thus throwing the chain wheel out of line with the other chain wheel
on the crank axle which na is well known causes the driving chain to monnt
upon the teeth of the chain wheel. Moreover, by this invention the cones are
rendered self-locking as they will remain in any position in which they aro placed
on the spindle.
We will describe this invention as applied to the back wheel of a safety bicycle.
It is to ho understood that our invention is similarly applied to the front wheel
and to the pedal axle of bicycles and other velocipedos and to other revolving
parts as aforesaid,
In carrying out this invention instead of making the said coned collars in a
piece with the axle on which the wheel revolves and adjusting one or both of
the coned rings in the sides of the wheel hub as is usual, wo. make the said
coned collars soparate from the spindle and screw thread them, theroon, one of
the coned collars working on a right hand screw throad on the spindle and the
other coned collar working on a left hand screw thread on the said spindle.
Each of the said coned collars has a sleeve or loss formed with it which projects
through the sides of the wheel hub and is made with cross slots or flats to engage
in the forked ends of the frame thus preventing the said coned collars from
turning round. There are or may be luck nuts on the ends of the said sleeves
to lock the same in the forks.
To adjust the said coned collars of the bearings it is only necessary to turn
the spindle in the one or in the other direction which, by virtue of the right and
left hand screws, has the effect of moving the coned collars along the spindle
nearer together or farther apart and thus the necessary adjustment is obtained.
As the coned collars on the spindle cannot revolvo and the wheel hub does not
touch the spindle no separate locking appliquce for the said spindle is necessary
and thus the cunes will remain in the position to which they have been adjusted.
by the turning of the spindle as aforesaid.
It should be stated that both the screw threads on the spindle are of the same
pitch and thus the two caned collars are moved, simultaneously and through the
same distances thus maintaining the wheel always in its true position on the axle,
as without first moving the wheel and axle from the forks it is impossible to

page_text: more one of the cones along the spindle inwardly or outwardly to a greator
distance than the other cone.
Dated this 19th day of October 1895.
CHARLES BOSWORTH KETLEY,
Agent for the Applicants.
"
Improved Means for Adjusting the Bearings of Bicycle Wheels and
of Certain other Revolving Parts.
We, JAMES DOHERTY, of 67, Vittoria Street, in the City of Birmingham,
Cycle Fittings Manufacturer, and WILLIAM CALCOTT, of The Grove, Foleshill
Road, Coventry, Warwickshire, Cycle Manufacturer, 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 :—
This invention consists of the hereindescribed improved means for adjusting the
cones of the ball bearings of bicycle wheels and certain other revolving parts of
velocipedes and of machinery which are arranged to revolve upon a stationary axis
or spindle. By this invention we insure the two cones being adjusted along the
spindle simultaneously and to the same amount thereby preventing one of the
cones being moved farther along the spindle than the other which would have
the detrimental effect of moving the wheel sideways along the spindle and thus
throwing the chain wheel out of line with the other chain wheel on the crank axle
and would cause the driving chain to mount upon the teeth of the chain wheel.
Moreover, by this invention the cones are rendered self-locking as they will
remain in any position to which they have been adjusted on the spindle.
We will describe this invention by referring to the accompanying drawing on
which Fig. 1 is a longitudinal section of the hub, spindle, bearings and chain wheel
of a back wheel of a safety bicycle with this invention applied; Fig. 2 is a side
elevation of the same; Fig. 3 shews the spindle and the two cones of the bearings
of the same separately; Figa. 4 and 5 shew how this invention is applied to the
front wheel of a safety bicycle or other velocipede.
The same letters of reference indicate the same or corresponding parts in all the
figures of the drawing.
Referring firstly more particularly to Figs. 1, 2 and 3, A. is the wheel hub;
a'a' are the two flanges to which the spokes of the wheel are fixed; B is the
driving chain wheel fixed to said hub; and the two sets of balls in the ball
bearings on which the hub revolves are marked respectively CC³.
In carrying out this invention instead of making one or both of the coned collars
in a piece with the axle D on which the wheel hub A revolves, and adjusting one
or both of the coned rings in the sides of the wheel hub as is usual, we make the
coned collars E' E' separate from the spindle D and screw threaded thereon, one
of the coned collars namely E' working on a right hand screw thread d' on the
spindle D, and the other coned collar working on a left hand screw thread d
on the spindle D. The coned collars E¹ has a sleeve or buss e' formed with it and
the coned collar E' has a similar sleeve or boss formed with it which bosses e' e'
project from the sides of the wheel hub and are each made with cross slots or
Hats which engage in the forked ends g' of the bicycle frame G thus preventing
the coned collars E' from turning round. There is or may be a lock uut ¹ on
the end of each of the sleeves to lock the same in the forked ends g' g³ of the
frame. To adjust the coned collars E' E' of the ball hearings C¹ C' it is only
necessary to turn the spindle D in the one or the other direction (which can
readily be done by 'a spanner on the square. end d) then by virtue of the right and
left hand screws d' d''this will have the effect of moving the coned collars E¹ E*

page_text: along the spindle D nearer together or farther apart and thus the necessary adjust-
ment of the ball bearings is obtained. As the coned collars E' E' on the spindle D
cannot revolve, and the wheel hub A does not touch the spindle D, no separate
locking appliance for the spindle D is necessary and thus the cones will remain in
the position to which they have been adjusted by the turning of the spindle Das
aforesaid.
It should be stated that both of the threads on the spindle D are of the
same pitch and thus the two coned collars E' E' are moved simultaneously and
through the same distance thus maintaining the wheel hub A. always in its true
position on the axle, as without first moving the wheel and axle D from the
forks gg it is impossible to move one of the cones E' E' along the spindle D
iowardly or outwardly to a greater distance than the other cone. The coned
rings I, which are fixed in the sides of the hub A and revolve upon the
bearings CC, may be constructed and fixed in the sides of the hub A in any con-
venient manner, or as shewn on the drawing by each coned ring being fixed in place
by a smaller ring recessed into the coned rings I¹ [and screwed into the side of
the wheel as shown.
When applying this invention to the front wheel of a safety bicycle, in which
the forked ends carrying the axle D are not slotted to permit of the removing of
the axle as are the forked ends g'g' of the part of the bicycle frame which
carries the axle D of the back wheel, wo prefer to prevent the collars E' E' from
turning on the axle D by making each of the sleeves or bosses e¹ eª with a pro-
jecting peg such as; which engages in a slot such as k in the fork end K as shown
by Figs. 4 and 5 so as to prevent the said coned collars E' E' from turning.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is :-
Tho hereindescribed in proved means for adjusting the two axis cones of the
ball bearings of a bicycle wheel or of other part which revolves on a stationary
axis, whereby both of the bearings are adjusted simultaneously and the coues
made self-locking, that is to say, making both of the said axis cones a loose
collars mounted respectively on right hand and left hand screw threads on the
axis, both of said collars projecting through the sides of the wheel hub or
revolving part and being prevented from turning by engaging with the fork of
the frame which carries the axis, so that by turning the axis in the one or in
the other direction the two coned collars will bo simultaneously moved along the
axis nearer together or farther apart thus adjusting both ball bearings simul-
taneously substantially as hereindescribed and set forth.
Dated this 20th day of July 1896.
CHARLES BOSWORTH KETLEY,
Agent for the Applicants.