Year: 1897

page_text: I, ALBERT FARNELL of 62 Manningham Lane, Bradford, Yorkshire, Cycle
Factor, do hereby declare the nature of this invention to be as follows:-
My invention relates to bearings and is especially applicable to adjustable ball
bearings, such as are commonly fitted to velocipedes and the like; and it consists
essentially in the hereinafter described improved means for locking the adjustment
of bearings.
In carrying out my invention as applied to the "Cup adjusting" hub or bottom
bracket bearings of a velocipede, the bearing cup is made externally of two
diameters, the larger part contains the ball race and the smaller part forms a
sleeve projecting from the back of the cup around the central aperture there-
through. Both parts of the cup are screw threaded externally, the threads being
similar. The end of the case is suitably threaded and the cup is adapted to be
screwed so far thereinto that the larger part is buried and the end of the threaded
sleeve stands approximately flush with the end of the case. I provide a suitable
ring with internal and external screw threads adapted to engage with the external
thread on the sleeve of the cup and the internal thread of the end of the case
respectively. The ring is preferably at one place cut through from the inner to
the outer circumference and its inner or outer screwed surface, or both of these
surfaces, or the screwed surface of the sleeve may be slightly coned or tapered.
When the ring is screwed into position between the sleeve and the case it binds
between the two said parts and locks the adjustment of the cup. To facilitate the
rotation of the cup when required, the end of the sleeve may be provided with
horizontal holes adapted to receive the pegs of a peg spanner or the said end may
be adapted to project somewhat beyond the end of the case, the projecting part
being provided with flats or the like; similarly the ring may be provided with
horizontal holes, a hexagonal sleeve or the like whereby it may be rotated.
"
In applying my invention to a cone adjusting" bearing, the cone and ring are
screwed on to the axle and the back of the cone is recessed and internally screw
threaded to receive the internally and externally screwed ring. The recessed
part of the cone and one or other of the threaded surfaces of the ring or any two
or all of these may be slightly coned or tapered, as before. In short, the
construction of the cup-adjusting device is inverted.
The invention may be applied to either or both ends of the bearing, but as a
rule it will be convenient to fix one of the two cups or cones in some simpler
manner, as by screwing it tight up to a shoulder and leaving the adjustment to
be effected by the remaining cup or cone.

page_text: From the above description the application of my invention to other suitable
bearings will be readily understood, modifications being made to suit special
circumstances as may be required.
I, ALBERT FARNELL of 62 Manningham Lane, Bradford, Yorkshire, Cycle
Factor, 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:-
-
My invention relates to bearings and is especially applicable to adjustable ball
bearings, such as are commonly fitted to velocipedes and the like: and it consists
essentially in the hereinafter described improved means for locking the adjustment
of bearings.
And in order that the said invention may be properly understood and readily
carried into effect I will describe the same with the aid of the accompanying
drawings.
Figure I shows a longitudinal section through the "cup-adjusting" hub of a
velocipede.
Figure II shows the adjusting cup in front and side elevation, separate from
the hub, and
Figure III shows similar views of the locking ring used therewith.
Figure IV shows a longitudinal section through the "cone-adjusting" hub of
a velocipede.
•
Figure V shows the adjusting cone in front and side elevation, separate from
the hub, and,
Figure VI shows similar views of the locking ring used therewith.
Corresponding parts are marked with the same reference numerals in all the
figures.
Referring to Figs. I, II and III, the bearing cup 2 is made externally of two
diameters, the larger part 3 contains the ball race 4 and the smaller part forms
a sleeve 5 projecting from the back of the cup around the central aperture there-
through. Both parts of the cup are screw-threaded externally, the screw-threads
being similar. The end of the case 6 is suitably screw threaded and the cup 2 is
adapted to be screwed so far thereinto that the larger part 3 is buried and the
end of the screw-threaded sleeve 5 stands approximately even with the end of the
case. I provide a suitable ring 7 with internal and external screw threads adapted
to engage with the external screw thread on the sleeve 5 of the cup 2 and the
internal screw thread of the end of the case 6 respectively. The ring 7 is prefer-
ably at one place (8) cut through from the inner to the outer circumference. The
inner or outer screwed surface of the ring 7, or both of these surfaces, or the
screwed surface of the sleeve 5 may be slightly coned or tapered in such a way
as to increase the grip as the ring is screwed inwards. When the bearing has
been adjusted by rotating the cup 2, the ring 7 is screwed into position between
'the sleeve 5 and the case 6 until it binds between the two said parts and locks the

page_text: adjustment of the cup 2. If the coning or tapering of the screw threads is such
as to compress the ring 7 as it is screwed inwards the cut 8 is preferably made in
V form so that the edges meet or nearly meet on the outer face of the ring, and
if the cut be further closed under pressure the edges will not prevent contraction
of the ring but will blunt each other or overlap to a small extent. By making
the screwed parts rather free and by cutting the ring 7 as described, it is found
that the said ring will engage with both the threads of the sleeve 5 and of the
case 6 without difficulty. To facilitate the rotation of the cup when required,
the end of the sleeve 5 may be provided with horizontal holes 9 adapted to receive
the pegs of a peg spanner or the said end may be adapted to project somewhat
through the ring 7 and beyond the end of the case, the projecting part being
provided with hexagonal flats or the like; similarly the ring 7 may be pro-
vided with horizontal holes 10, a hexagon sleeve or the like whereby it may be
rotated.
Referring to Figs. IV, V and VI, the "cone-adjusting" bearing will be seen
to be practically the "cup-adjusting" bearing inverted. The cone 2 and ring 7
are screwed on to the axle 6 and the back of the cone is recessed forming a sleeve
which is internally screw threaded to receive the internally and externally
screwed ring 7. The internally screwed sleeve 5 and one or other of the threade 1
surfaces of the ring 7 or any two or all of these may be slightly coned or tapered
as before. When the bearing has been adjusted by rotating the cone 2, the ring 7
is screwed into position between the sleeve 5 and the axle 6 until it binds between
the two said parts and locks the adjustment of the cone.
The invention may be applied to either or both ends of the bearing but as a rule
it will be found convenient to fix one (12) of the two cups or cones in some simpler
manner, as by screwing it tight up to a shoulder 11, and to leave the adjustment
to be effected by the remaining cup or cone 2.
From the above description the application of my invention to other suitable
bearings will be readily understood, modifications being made to suit special
circumstances as may be required.
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:-
1. In means for locking the adjustment of bearings the employment of an
internally and externally screw-threaded ring, the screw-threaded surfaces whereof
are adapted to engage with and lock together the adjusting piece of the bearing
and the part (case or axle) of the said bearing into or onto which the said adjust-
ing piece screws, all the screw threads being alike in pitch and direction,
substantially as set forth.
2. In means for locking the adjustment of "cup-adjusting" bearings, the com-
bination of Firstly, an adjusting cup made externally of two diameters, both
parts being screw threaded; secondly, a case having a part suitably screw threaded
internally to receive both the larger part of the said adjusting cup and the locking
ring next hereinafter referred to; and thirdly, an internally and externally screw
threaded locking ring adapted to screw on to the smaller part of the adjusting cup
and at the same time to screw into the internally screw threaded part of the case
so as to lock the adjusting cup to the case, all the screw threads being alike in
pitch and direction, substantially as set forth.
3. In means for locking the adjustment of "cone-adjusting" bearings, the
0 combination of :-Firstly, an adjusting cone made internally of two diameters
both parts being screw threaded; secondly, an axle having a part suitably screw
threaded to receive both the smaller part of the said adjusting cone and the locking
ring next hereinafter referred to; and thirdly, an internally and externally screw
threaded locking ring adapted to screw into the larger part of or recess in the
5 adjusting cone and at the same time to screw onto the axle so as to lock the

page_text: adjusting cone to the axle, all the screw threads being alike in pitch and direction,
substantially as set forth.
4. Constructing a locking ring, of the kind referred to in the preceding
claiming clauses, with a cut from its inner to its outer circumference, substantially
as set forth.
5. In the means for locking the adjustment of bearings referred to in the pre-
ceding claiming clauses 1, 2 and 3, making taper the inner or outer screw
threaded surface of the locking ring or the screw-threaded surfaces with which
the said locking ring is adapted to engage, or any one or more of such screw-
threaded surfaces, substantially as and for the purpose set forth.
6. The improved means for locking the adjustment of bearings substantially
as herein described with reference to Figs. I, II and III of the accompanying
drawings.
7. The improved means for locking the adjustment of bearings substantially
as herein described with reference to Figs. IV, V and VI of the accompanying
drawings.
Dated this 12th day of August 1897.
G. DOUGLAS LEECHMAN,
18 Hertford Street, Coventry,
75 Chancery Lane, London, W.C., and 49 Middle Abbey Street, Dublin,
Patent Agent for the Applicant.