Improvements in Ball Bearings for Cycles and other Vehicles.
Year: 1896

page_text: PROVISIONAL SPECIFICATION.
Improvements in Ball Bearings for Cycles and other Vehicles.
I, HERBERT GODSAL of 13 Bruton Street Berkeley Square London, W., Barrister-at-
Law, do hereby declare the nature of this invention to be as follows:-
The object of my invention is in ball bearings of cycles and other vehicles to.
prevent or lessen the chance of a cup when once adjusted moving towards or
from the balls.
According to my invention I make the cup with a locking nut or ring of
particular forms so as to obtain a wedging of the cup.
According to one method of carrying out my invention the eup is provided from near
the ball race end for some distance with a male serew travelling in the female screw of
the hub as heretofore, from the point at which this male screw terminates I taper the
cup towards its outer end for some distance, the tapering surface being either plain,
ridged or screwed.
From the termination of the tapered part of the cup I continue it paralell
again to the end, the surface of this paralell part being sometimes male
screwed near the tapering surface. The end of the cup is formed hexagonally
or of other suitable forin, so that a spanner or other suitable instrument
may be applied to turn or hold it.
The locking nut or ring is provided on its outer surface with a male screw
travelling in the female screw of the hub. In longitudinal section the locking
ring shews a tapering portion commencing at a small distance from the outer
circumference of the right angled end of the nut or ring, and continuing to the
inner surface of the ring. When the locking ring is screwed home, the cup
being in position and held by a spanner or other instrument, the tapered portion
of the locking ring when the same is screwed home wedges firmly against the
tapering portion of the cup, the tapering portion and the inner surface of the
locking nut or ring from where the tapering portion ends is screwed or not
according as the corresponding part of the cup is screwed or not.
According to another method of carrying out my invention, the cup is pro-
vided externally with a male screw travelling in the female screw of the hub
and in longitudinal section the cup shews its inner surface so formed that a
portion of it, beginning from the ball race end, fits upon the spindle.
From the point where this portion terminates the line indicating the inner
surface extends outwards and then continues paralell again to near the outer end
when it proceeds outwards and forwards to the end.
The paralell surface or a portion of it is female screwed. The outer end is
formed externally hexagonally or of other suitable form, so that a spanner or
other instrument may be applied to turn or hold it. The end of the cup
remote from the ball race is for some distance slitted at intervals longitudinally.
When the cup is in position there is thus a space between the spindle and the
inner surface of the cup, which at first tapers inwards and is then paralell
towards the ball race end.
Into this space I introduce the locking nut or ring which is formed as follows.

page_text: In longitudinal section the line bounding the inner surface of the locking nut or
ring is shewn paralell to the spindle around which the nut or ring fits. The line
bounding the outer surface of the nut or ring shews a blunt rectangular end towards
the ball race end of the cup, and then a paralell portion male screwed, to screw into
the female screwed portion of the cup. From the point where the paralell portion
terminates the line bounding the outer surface of the nut proceeds upwards and
outwards to the end, which end is formed hexagonally or of other suitable form so
that a spanner or other instrument may be applied to turn it, when the locking is
screwed home, the cup being in position and held by a spanner or other instrument
the tapered portion of the locking nut or ring wedges firmly against the tapered
portion of the cup and so expands the slitted end of the cup and holds it firmly in
position.
According to another method of carrying out my invention the cup is formed with
paralell outer and inner surfaces, the outer surface being male screwed to screw into
the female screw of the hub, and the inner surface being paralell to the spindle around
which it fits.
The cup is divided longitudinally by a radial slit which before it reaches the surface
is circularly enlarged, the enlargement being female screwed so as to admit of a
tapering male screw being screwed into the circular enlargement. By means of the
tapering male screw the slitted cup is thus expanded and firmly wedged in its
position.
To make the ball race oil tight I provide an enlarged wad to the tapering screw so
that, when the screw is screwed home the head fills up the space between the slit and
the hub.
I HERBERT GODSAL of 13 Bruton Street Berkeley Square London W. Barrister-at-
Law 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:-
The object of my invention is in ball bearings of cycles and other vehicles to
prevent or lessen the chance of a cup when once adjusted moving towards or from the
balls.
According to my invention I make the cup with a locking nut or ring of particular
form so as to obtain a wedging of the cup.
In order that my invention may be readily understood I will now proceed to
describe with the aid of the accompanying drawings how the same is to be carried
out.
In the drawings.
Figure I is a longitudinal section of one end of the hub fitted with one form of my
invention.
Figure II is a longitudinal section of one end of a hub fitted with another form of
my invention.
According to the method shewn in Fig. I of my invention the cup C. is provided from
near the Ball race end c 1 for some distance with a male screw c 2. travelling in the
female screw c 3 of the hub as heretofore. From the point c 4 at which this male
screw terminates I taper the cup inwards T. to its outer end c 5, the tapering

page_text: surface T. may be plain (as here shewn) ridged, or male screwed with a similar
screw to c 2.
The end c 5 of the cup may be formed hexagonally and project beyond the locking
ring R. so that it can be held by a spanner, but I generally prefer to provide tommy
holes t 1. t 2. in it for this purpose.
The locking nut or ring R. is provided on its outer surface with a male screw M.
travelling in the female screw c 3 of the hub. In longitudinal section as here shown
the locking nut or ring R. shews a tapering portion or face S. which is conified as here
shown and made slightly too small to fit quite home on to the cone face T. of the
cup C.
The cup being held in position by an instrument in its tommy holes t 1. t 2, when
the locking nut or ring R. is screwed home, as far as it will go, as shewn in the figure,
the cup being in position the tapered face S of the locking ring R. wedges on to the
tapered portion T. of the cup C; thus a jambing or wedging action takes place if the
ring R. is screwed as tightly as possible against the cup C. till it approaches it as
nearly as it can. The cup C. is now firmly held in position and will not move to or
from the Ball B 1. B 2.
According to the method shewn in Fig II of carrying out my invention the cup C. is
provided externally with a male screw c 2 travelling in the female screw of the hub c 3;
and in longitudinal section the cup shews its inner surface so formed that a portion
of it beginning from the ball race end B. fits upon the spindle S. From the point
where this portion terminates the line indicating the transverse section of the inner
surface D. extends outwards and is then coned T 1., afterwards female screwed F.,
paralell to the Spindle S, and again it is coned at T 2. It has tommy holes E 1. E 2.
so as to be capable of being held by a spanner. The Locking ring R. has corresponding
coned faces G. 1. G 2. and a screw face H. which engage with the corresponding coned
faces T 1. T 2. and screwed face F. of the cup C.
The coned faces T1 & T 2. of the cup being made somewhat too small to allow
the locking ring R. to fit quite home a wedging takes place and the end Z
(remote from the ball race) of the cup C. is distended and forced to spread out,
it having longitudinal Slits Z 1. Z 2. Z 3. to admit of its so doing.
In Fig. III the cup C. is shewn with the slits Z1, Z2. Z 3. in the end Z remote
from the ball race.
I sometimes dispense with the coned faces T 1. & G 1.
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
(1) The combination with the body of the hub of a cup and locking nut all
substantially as and for the purposes hereinbefore described with reference to Fig. I.
(II) The combination with the body of the hub of a cup and locking nut all
substantially as and for the purposes herein before described with reference to
Figs. II & III.
Dated this 26th day of July 1897.