Improvements in Disc-adjusting Ball Bearings.
Year: 1898

page_text: Date of Application, 9th Apr., 1898
Complete Specification Leit, 9th Jan., 1899-Accepted, 18th Feb., 1899
PROVISIONAL SPECIFICATION.
Improvements in Disc-adjusting Ball Bearings.
We, JOHN JAMES SHIELDS HESLOP, of 11, Fawcett Street, Sunderland, in the
County of Durham, Manufacturer, and CHARLES HENRY PENNING, of 4, Elgin Street,
Sunderland, aforesaid, Engineer, do hereby declare the nature of our invention to
be as follows:-
The object of this invention is to produce a more perfect method of locking the
adjustable disc which forms the outer part of the path or race of the balls in
ball bearings; and to avoid any tendency to give an unequal gripping pressure as
must be the case with side keys, pins or the like.
The grip we produce bears all round the surface upon which the grip is given.
We propose therefore in applying our invention to a cycle bearing for example, as
applied to the crank hub.
We make the inner part of the ball race (which we call the cup) upon the axle
as usual. The disc which forms the outer path is screwthreaded upon the periphery
and surrounding the centre hole through which the axle passes is a projecting
annular boss say for example only quarter of an inch deep and one eighth thick
having flats by which the disc may be screwed into its position.
When the disc is thus adjusted, a thin washer carrying centrally a self adjusting
split gripping-ring, coned upon its periphery is placed over the annular disc boss
and against the disc, and means are provided for preventing any rotation of this
connected washer and ring.
Finally we take a narrow disc, screwthreaded upon its edge and provided with a
coned centre hole, and screw it within the crank hub until the coned centre hole
bears upon the conical gripping washer.
Further, continued movement of this coned disc causes the coned split gripping
ring to contract upon the boss of the disc and to hold it firmly and securely, with-
out any unequal strain.
Improvements in Disc-adjusting Ball Bearings.
We, JOHN JAMES SHIELDS HESLOP, of 11, Fawcett Street, Sunderland, in the
County of Durham, Manufacturer, and CHARLES HENRY PENNING, of 4, Elgin Street,
Sunderland, aforesaid, Engineer, do hereby declare the nature of this invention and
[Price 8d1

page_text: in what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement:-
The object of our invention is to produce a more method of locking the
adjustable disc which forms the outer part of the path or race for the balls in
ball bearings, and to avoid any tendency to give an unequal gripping pressure as
must be the case when side keys, or pins are used.
The gripping action we produce bears all round the surface upon which the
grip is given.
We attain this object by means of the mechanical arrangement illustrated in the
accompanying drawings, in which—
Fig. 1, is a sectional view of a portion of a bicycle crank axle and hub with
ball bearing constructed, according to our invention.
Fig. 2, The outer path disc, two views.
Fig. 3, The split gripping ring, two views,
Fig. 4, The coned disc or washer, two views.
Fig. 5, Front view of Fig. 1, when put together.
In carrying out our invention as applied to the ball bearings of a crank axle as
shown in the drawings. We make the hub H, of any of the usual patterns, and
form the inner part of the ball path or race R¹, which is sometimes called the
cup, upon the axle A, as usual.
The disc D, which forms the outer path R2, is screwthreaded upon its periphery
to engage with the screwthreaded hub, and surrounding the centre hole through
which the axle A passes is a projecting annular boss say for example about
quarter of an inch deep provided with a flat or flats F, by means of which the disc
may be screwed down into its desired position shown in Fig. 1.
When the said disc is thus adjusted, a thin washer G, Fig. 3, carrying a centrally
adjusting split gripping-ring C, coned upon its periphery, and attached to the
washer by a pin P, is placed over the annular boss of the disc D, with the
coned ring outwards, and means are used for preventing its rotation, such as
projections G2 upon the edge of the washer which fit into corresponding
grooves G³, made in the hub H see Fig. 5.
Finally a washer W, screwthreaded upon its periphery to fit the threads within
the hub, and having a coned centre hole, see Fig. 4, and provided with means
by which it may be turned, is screwed down upon the coned ring C, causing it to
contract upon the boss of the disc D, and thus fix it securely in its adjusted position
against the balls B, without an unequal or side strain.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we declare that what
we claim is:-
1-The method for locking the outer path disc of cycle ball bearings in its
adjusted position, and the combination of appliances used in carrying out the
method, substantially as herein before described and set forth.
2-As a locking device for the outer path disc of ball bearings, the combination
with the hub or boss of the disc D), of a non-rotating washer G provided with a
conical gripping ring C, and a screwed washer W, capable of contracting the
ring C, upon the boss of the outer path disc 1), as herein before described and
shown.
Dated the 6th day of January 1899.
ROBT. F. DRURY, C.P.A.,
Agent for Applicants,
Bank Buildings, George Street, Sheffield.