Year: 1897

page_text: Date of Application (in United Kingdom), 1st Jan., 1897
Complete Specification Left, 1st Jan, 1897-Accepted, 5th June, 1897
.
I, THOMAS BOYD, of Manchester Street, Christchurch, Canterbury, in the Colony-
of New Zealand, 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 relates to further improvements upon my invention for which '
I obtained Letters Patent in Great Britain No. 25,224 bearing date 4th August 1894.
The principal object of my present invention is to construct the bearings so as.
to be adjusted from one side or both, whereas in my former invention the bearings.
required to be adjusted from both sides.
My said improvements are applicable for both "brackets" and "hubs," but more
particularly for "brackets."
By the use of these improvements the bearings are more durable and accurate
and more easily adjusted.
"
My said improvements consist of a "sleeve" of preferably soft steel having at
each end a cone of hardened steel brazed or otherwise affixed thereon; this sleeve
is inserted into the "bracket or "hub" and the spindle fitted in same, an outer
cone being screwed into said "bracket"
or "hub
at each side which retain the.
balls in position, the said sleeve and outer cones being held by means of cotter.
pins which tend to force the said sleeve and cones in the same direction.
By screwing up either of these outer cones, the said sleeve and the balls are.
caused to move, and thus the bearings can be adjusted on both sides at once.
My invention will be readily understood by reference to the annexed sheet of
drawings wherein :-
Fig. 1 is a front view of a "bracket" showing the cotter pins.
Fig. 2 is a side view of same showing one of the said cotter pins and an outer
cone.
Fig. 3 is a longitudinal section of said "bracket" showing the "sleeve," the
balls, the spindle, the outer cones, and the cotter pins.
•
Fig. 4 is a cross section showing spindle, sleeve and one cotter pin.
Fig. 5 is a view of a "hub" half in section and half in elevation, having my
improvements fitted therein.
The same letters of reference indicate corresponding parts where they occur in
the several figures.
A is the bracket," B the "hub." The spindle a has a groove a' at one side.
in which the balls c work; a flat bearing surface d being formed at the opposite
side for balls c¹. C is the sleeve preferably of soft steel to each end of which a
hard steel cone e is brazed or otherwise affixed; this sleeve, and also the cones e-

page_text: are turned and ground true before being inserted into the "bracket"
as the case may be.
6
or "hub
"
or
f and f¹ are outer cones which are screwed into the ends of the "bracket
hub," and which retain the balls in position. 9 g are cotter pins by means of
which the said sleeve is held; h h are similar cotter pins by means of which the outer
cones are held when in position. In the case of "hubs" the outer cones are held by
lock-nuts instead of cotter pins.
"
By slackening the cotter pins on the "bracket or the lock-nuts on the "hub"
and screwing up the outer cone on one side, the sleeve C together with the balls in
either case are caused to move, and thus the bearings on both sides of the "bracket"
or the "
"hub as the case may be, can be adjusted by turning one outer cone.
"
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 :-
In cycles, the combination with either the "bracket" or "hub," of a "sleeve"
such as C having at each end a cone e forming bearings for the balls c and c¹;
such sleeve, in the case of "brackets," being held by cotter pins such as 99; and
capable of being adjusted by either of the outer cones ff which are also, in the
case of "brackets," held by cotter pins, and, in the case of "hubs," by lock-nuts,
substantially as herein described and illustrated in the accompanying drawings.
Dated this 25th day of November 1896.
THOMAS BOYD.