Improvements in and connected with Ball-bearings.
Year: 1895

page_text: Date of Application, 22nd July, 1895
Complete Specification Left, 22nd Apr., 1896-Accepted, 30th May, 1896
PROVISIONAL SPECIFICATION.
Improvements in and connected with Ball-bearings.
We JANE RENOUF of 26 York Road, Edgbaston, Birminghain, in the County-
of Warwick and PHILIP LOUIS RENOUF of the same address, Engineer do
hereby declare the nature of this invention to be as follows :—
In ball bearing cases which are closed in by a pair of concave cones or cups, so
that the cones on the axle or spindle lie between the cups instead of outside them,
we fix one cone to the axle or spindle but make the other cone loose & capable of
sliding; the space between these cones is occupied by a suitable spring so that we
produce a practically self-adjusting bearing.
When the bearing case or box is screwed into another object it may be locked
thereto by a projecting flange or shoulder on the outer cup or cone; this cup or
cone being screwed or threaded on its outer circumference in the opposite direction.
to that of the article against which it is to be locked.
1 100th day of Tul 1895.
JANE RENOUF.
PHILIP LOUIS RENOUF..
Improvements in and connected with Ball-bearings.
We, JANE RENOUF of 26 York Road, Edgbaston, Birmingham, in the County-
of Warwick, and PHILIP LOUIS RENOUF of the same address, Engineer 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:-
In ball bearing cases which are closed in by a pair of concave cones or cups so-
that the cones on the axle or spindle lie between the cups instead of outside them,
we fix one cone to the axle or spindle and leave the other cone loose and capable
of sliding outward. The space between these cones is occupied by a suitable
spring, so that we produce a practically self-adjusting bearing.
"
This system is of particular advantage on so-called barrel hubs on which usually
an in-turned concave cup is used as the adjuster, trouble being caused either by
the slackness of fit of the cup or through the locking mechanism not being
sufficiently sensitive and throwing the adjusting cup out of truth.
α are screwed and even
Referring to the drawing, cups """1" on hub "
forced in tightly so as to be practically immovable, except for the purposes of
repair. "" is a chain ring in section mounted in the usual way. The spindle "c"
is made very long-
is furnished with a fixed cone "d" and a loose cone
and must be a perfect fit on the spindle "c." "f" is a spring resting against the
fixed cone "d" and forcing cone "e" into proper adjustment. It will be seen that
unless the surfaces of the male and female cones are of a very bad shape, the
spring will always keep the cones in adjustment, whilst the length of the fit of
will prevent side pressure or twist from forcing the cone "e" back.
Sometimes we may provide a nut between the fixed cone "d" and the spring, for
66
cone e
$6 e" ;
""

page_text: 66 7966
regulating the tension of the latter, but in practice it will be found more convenient
to use a spring of suitable tension without any additional mechanism.
'g'" are
collars screwed on the axle filling up the spaces under the cups "6" 61" for the
purpose of excluding dust and grit and also to act as shoulders against which the
nuts """" lock the fork ends of the bicycle.
It is evident that the same kind of mechanism may be used on bottom bracket
axles, as long as the fit of the sliding cone is good and the length of bearing of
this cone on the spindle is so great that the side pressure will not push it back
against the tension of the spring.
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 which we
claim is ;-
(1.) In ball-bearing cases providing a self-adjusting bearing by a sliding cone
situated inside such bearing and subject to expansion towards the outside, and
keeping a row or rows of balls in adjustment against an in-turned concave bearing
cup or disc, substantially in the manner described.
66
e
(2.) The velocipede hub containing the adjusting cone " and the compression
spring "," in the manner and for the purpose substantially as described.
Dated this Twenty-first day of April 1896.
JANE RENOUF.
PHILIP LOUIS RENOUF.