An Improvement in Bearings of Cycles and other Vehicles.
Year: 1898

page_text: PROVISIONAL SPECIFICATION.
An Improvement in Bearings of Cycles and other Vehicles.
SAMUEL DEYKES GIBSON, 148, Bradford Street, Birmingham, Cycle Mechanic, do
hereby declare the nature of this invention to be as follows
The adjusting cup A Fig. 1 is made with a flange a. This flange is drilled and
one or more screws C are fitted so as to abut upon edge of bracket or hub shell B.
After the proper adjustment is obtained the small screws C are screwed up tight, so
ocking it.
A modification may be made by screwing a thin disc D Fig. 2 immediately after
the cup A the disc having been fitted with screws C which will abut on face of
cup, and upon the said screws C being screwed up tightly will lock it as before,
or the cup A may be left longer and then cut nearly through transversely as shown
in Fig. 3 and screws C fit into the one portion.
Dated this 7th day of February 1898
An Improvement in Bearings of Cycles and other Vehicles.
I, SAMUEL DEYKES GIBSON, Mechanic, of 148, Bradford Street, in the City of
Birmingham, 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 the bearings of cycles and other similar vehicles, and
has particular reference to tho wheel centres, or axes of rotation, and to the bottom
brackets or pedal crank axes.
The said invention consists in an improved means of locking the adjustment of
such bearings in a simple manner and so that the said adjustment shall not by the
locking be in any way interfered with.
Hitherto the adjusting cones or cups of the bearings of cycle wheels and bottom
brackets have been locked after adjustment by nuts and other contrivances which,
without considerable care is exercised in the screwing up, by their frictional contact
with the said covers or cups have a tendency to further set up the adjusting cups
and lock the bearings, so that the rotating parts become jammed.
The chief idea in this invention is to overcome this frictional contact, and this is
accomplished by using in conjunction with the adjusting cups or cones and the
edges of the hubs or bottom bracket ends a number of set screws or screw pins,
rn 071

page_text: which are carried by the adjusting part and screw up against the edges, as aforesaid,
and constitute the locking means.
In the accompanying sheet of drawings the invention is practically illustrated,
Figs. 1 and 2 showing it applied to the hub of the rear wheel of a cycle. The said
figs. are respectively a longitudinal section and an end elevation. Fig. 3 shows
the invention applied to the bottom bracket or pedal crank axis, and Figs. 4 and 5
are slight modifications of the arrangement in Fig. 3. The hub shown in
Figs. 1 and 2 has an axis a with solid cones a². The shell c of the hub is
built up in accordance with the generality of disc adjusting hubs, it having head
parts c² and bearing socket-parts c³, ct. Into these latter the bearing cups are
screwed, the one coupon the chain wheel side being screwed up a fixture, and the
one d upon the other side being adjustable. This last named bearing cup has
formed upon it a ring flange d², which is adapted to come adjacent to the edge g of
the bearing socket c³, and this ring flange, which is sufficiently large to extend
over the said edges, has a number of piercings d³ through it, within which set
screws m engage. In the drawings three of said set screws are shown, disposed at
equi-distances in the flange, and their tips m² are adapted to impinge or screw
up against the edge g of the bearing socket c³, and exert a pulling out action of the
cone against it.
It will be observed that the inside face of the flange d² stands a short distance
clear of the edge g when in the cup's adjusted position, and it will be only
necessary to screw up the set pins m against the said edge to effect the locking of
the said cup.
The action of tending to pull the adjusting cup out of the socket when it is being
locked is a decided advantage on the majority of adjustments, as, if the screwed
connection of the adjusting cup with the socket is at all a bad one, the tendency of
the locking is not to jam the bearing but to free it.
In Fig. 3 the locking arrangement is the same but is shown applied to the bottom
bracket, a being the pedal crank axis, a? a solid cone thereof, il the adjusting cup,
d the flange, m the set screws, c the bottom bracket and g the abutment edge
thereof.
In Fig. 4 is substituted a disc for the flange d², and the set screws m, which pass
therethrough, impinge against the face of the adjusting cup d. This disc is screwed
into the end of the bottom bracket after the adjusting cup, and is a separate part
thereof, but in Fig. 5 the said disc is cut from the adjusting cup itself, it practically,
in this view, constituting a spring disc; but it is not anticipated that the adjustment
can be so nicely effected as the arrangement in Figs. 1, 2 and 3.
The locking means may be employed upon both sides of a bearing if an
adjustment of both sides is provided, and it is equally simple in its application to
rotating parts other than those of cycles which are characterised by similar
parts.
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 :-
First. In the bearings of cycles and like vehicles, locking the adjusting cups or cones
within their seatings by means of a number of small set screws, which are adapted
to screw up against an adjacent abutment almost frictionless, and which exert
a pulling out tendency upon the adjusting cups or cones, substantially as set
forth.
Second. In combination in a bearing such as described, an adjusting cup or
cone d adapted to screw into a socket and having a flange d² upon it, set screws m
working through the said flange and adapted to screw up against an abutment
edge of a bearing socket, and an axis having solid cones which combine with the
adjusting cup to form a ball race for anti-friction balls, substantially as set
forth.
Third. In bearing parts of cycles as set forth, the combination with an adjusting

page_text: cup or cone screwing into a seating, of a disc d² screwing into the said seating at
the back of the said cup or cone, and having a number of set screws m working
through it, which take their locking abutment against the face of the said cup or
cone, substantially as set forth.
Dated this 10th day of March 1
W. P. THOMPSON & Co.,
11, Burlington Chambers, New Street, Birmingham, also of Liverpool,
London and Manchester, Patent Agents for the Applicant.