Improvements in Ball Bearings.
Year: 1899

page_text: Date of Application, 3rd Aug., 1899-Accepted, 23rd Sept., 1599
COMPLETE SPECIFICATION.
Improvements in Ball Bearings.
I, JAMES YATE JOHNSON, of 47, Lincoln's Inn Fields, in the County of London,
Gentleman, do hereby declare the nature of this invention (which has been com-
municated to me from abroad by Louis Horn, of 618, Chestnut Street, Phila-
delphia, Pennsylvania, United States of America, Tool Maker, and Rudolph
Eugene Drinhaus of Chestnut and Eighth Streets, Philadelphia aforesaid,
Gentleman), and in what manner the same is to be performed to be particularly
described and ascertained in and by the following statement:-
مر
This invention relates to ball bearings for use particularly in the hubs of bicycle
wheels and the like and in the crank hangers of the same, although the said
invention is applicable in all cases where a ball bearing of this type is required.
The object of this invention is to make a ball bearing of simple construction,
which will be light running and which can be removed without displacing the
balls as hereafter fully described.
In the accompanying drawing:-Fig. 1 is a longitudinal section of the improved
bearing; Fig. 2 is a transverse section on the line 2-2 Fig. 1; Fig. 3 is a
transverse section on the line 3-3, Fig. 1; Fig. 4 is an enlarged section of a
portion of Fig. 1 and Fig. 5 shews the parts illustrated in Fig. 4 detached. I
will describe the invention as applied to a bicycle wheel from which its general
application will also be understood.
A is the axle secured in any suitable manner to the frame of the bicycle, each
end of the said axle being, in the arrangement shewn, screw threaded and having
screwed on each screw thread a nut a of the form clearly illustrated in Fig. 1.
Outside these nuts a are the ordinary nuts a¹ and washers for securing the axle
to the frame A¹.
B is the hub, which may be either hollow, as shewn, or solid. The hub is
recessed at each end and fitting in each recess is a shell D having a concaved
recess d (Figure 5) in which fits a sliding ring D₁ having a convex back and free
to slide within the annular concaved recess d. The central opening in the shell D
is somewhat larger than the axle so that the axle will not come into contact with
the shell D.
In the arrangement illustrated the outer portion of each end of the hub is screw
threaded and screwed onto the hub at each end is a cap E, having a concaved
annular recess e (Figure 5) similar to the recess d in the shell D, and in this
recess e slides a ring E having a convexed back similar to the ring D¹.
Mounted in the space between the shell D and the cap E are two series of
balls and g and between these balls is a ring I somewhat less in width than
the space so that it runs freely between the two face rings D¹ and E¹ and separates
the series of balls, as shewn in the drawing.
The balls fare in contact with the cone shaped nuts a of the axle and carry
the load.
The friction of the parts is considerably reduced by placing the outer series of
balls between the ring I and the flange d' of the shell D and on the shell D is
formed an internal flange, as clearly shewn in Fig. 4, which extends beyond