Improvements in Ball Bearings.
Year: 1894

page_text: Date of Application, 15th Feb., 1894
Complete Specification Left. 3rd Apr., 1894-Accepted, 5th May. 1894
IROIDIONAL DE BUITIVATION.
Improvements in Ball Bearings.
We WILDSMITH BADGER of 12 Wilton Square New North Road, London, N.
Mechanical Engineer and HENRY BADGER of 13 Petworth Street, Battersea,
Record Searcher do hereby declare the nature of this invention to be as
follows:-
:-
This invention relates to ball bearings wherein a number of rows of balls are
employed and has for its chief object to facilitate the quick assembling, adjustment,
and taking apart of such bearings.
According to our invention each row of balls is separated from the adjacent row by
an adjustable ring formed with a screw thread upon its periphery which engages
with a corresponding thread formed around the interior of the outer casing or
casting of the bearing. These rings form the ball races and are of the usual form
employed in ball bearings with side adjustment. Since in assembling the bearing it
would be a long and tedious operation, especially when many rows of balls were
employed, to gradually screw each ring along its threaded path to its proper position
we interrupt the screw thread on the rings at suitable intervals and form
corresponding interruptions in the screw thread of the casing, this construction
enables each ring to be quickly passed along the bearing to its proper place where
it will be retained by a partial turn. The taking apart of the bearing is equally
facilitated. Furthermore the angles of the interruptions on the rings form a
convenient "bite or "hold" for a chisel punch or other handy implement when
adjusting the bearing to proper working fit, the outer casing being divided
longitudinally and the two portions detachably connected so as to permit ready
access to any ring for this purpose. We prefer to form the said longitudinal
division in the outer casing considerably above the centre line thereof since by this
arrangement the various rings will be firmly held in position when the upper portion
or cap of the casing is removed. There should also be sufficient "draw" between
the two portions of the casing to firmly grip the rings when screwed together.
"
In order to permit the ready insertion in and withdrawal from their races of the
balls we form a shallow groove or notch in the edge of each ring or race.
Suitable glands or caps would be provided at each end of the bearing to retain
the oil therein.
21 3
1
1007
COMPLETE SPECIFICATION.
Improvements in Ball Bearings.
We WILDSMITH BADGER of 12 Wilton Square, New North Road, London N.
O Mechanical Engineer and HENRY BADGER of 13 Petworth Street, Battersea,
Record Searcher 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 that class of ball bearing wherein a plurality of rows of

page_text: balls is employed, and has for its chief object to facilitate the quick assembling,
adjustment, and taking apart of such bearings.
According to our invention each row of balls is separated from the adjacent row
by an adjustable ring or ball race formed with a screw thread upon its periphery
which engages with a corresponding thread formed around the interior of the outer
casing or casting of the bearing. These rings or ball races may be of the form
usually employed in ball bearings with side adjustment. Since in assembling the
bearing it would be a long and tedious operation, especially when a large number
of rows of balls was employed, to gradually screw each ring or race along its
threaded path to its proper position we interrupt the screw thread of the ball races
at suitable intervals and correspondingly interrupt the screw thread of the casing,
this enables each ball race to be quickly slipped along the casing to its proper
place in the bearing where a partial turn will cause its screw thread to interlock
with that of the casing. The taking apart of the bearing is equally facilitated.
Furthermore the angles caused by the interruptions on the ball races form a
convenient "bite" or "hold" for a chisel, punch, or other handy tool when adjusting
the bearing to proper working fit, the outer casing being divided longitudinally and
the two portions detachably connected so as to permit ready access to the edge of
any ball race or ring for this purpose. We prefer to form the said longitudinal
division in the outer casing considerably above, below, or to one or other side of,
the centre line thereof, since by this arrangement the various rings will be firmly
held in position when the cover or cap of the casing is removed. There should
also be sufficient "draw" between the two portions of the casing to firmly grip and
lock the ball races when screwed together.
: In order to permit the balls to be readily inserted in and withdrawn from their
races we form a shallow groove or notch in the edge of each ball race.
Suitable glands or caps would be provided at each end of the bearing to retain
the oil therein.
In the accompanying drawings in which similar letters refer to corresponding
parts in all the figures;
Figure 1 is an end view of a ball bearing constructed according to our
invention.
Figure 2 is a sectional side elevation of the same on line 1-2 Figure 1.
Figures 3 and 4 are detached views illustrating one of the ball races or rings in
edge and face view.
a is the outer casing or casting of the bearing which is divided at b the divided
portions being held together by the bolts cc. dd are the ball races or rings each
race or ring being provided with an interrupted peripheral screw thread as clearly
shewn in Figures 3 and 4. The interior of the casing or casting a is provided with
a correspondingly interrupted screw thread consequently any ball race can at once
be slipped in its desired place in the casing a and retained there by a partial turn
and can be removed when desired with equal facility. ee are oil caps or covers at
each end of the bearing for preventing the escape of oil.
In Figure 1 the oil
cover is omitted in order to shew clearly the interrupted screw thread of the
casing a. represents a shaft or axle carried by the bearing and g is the usual
hardened steel sleeve surrounding the same.
The adjustment of the bearing is effected by removing the cover a¹ thereof when
the edges of the ball races being exposed they can be easily turned and adjusted by
a chisel, punch, or like handy tool applied to the angles formed by the interruptions
in their peripheral screw threads. The cap or cover a' is then replaced and the
bolts ce tightened up again thereby gripping the ball races d firmly in their
adjusted position. The division 6 of the bearing being considerably above the
centre line thereof the ball races d will be firmly held and cannot be accidentally
displaced even when the cap a¹ is removed. d' indicates a small notch or groove
formed in each ball race d for facilitating the insertion of the balls when
assembling the bearing.
In order to readily collect and avoid loss of the balls when taking the bearing

page_text: apart we may form an inclined channel or groove i in the bottom of the casing a
said channel i terminating at each end of the bearing in a pocket k.
When the
bearing is taken apart the balls released from their races will fall into the channel i
and collect in these pockets. If desired the channel i may incline in one direction
only a single pocket k being provided at one end of the bearing.
It will be noted that there is no interruption in the screw thread of the casing
which corresponds with the long uninterrupted portion of the screw thread on the
ball races, (see Figure 4) the corresponding interruption in the screw thread of the
casing being produced by removing the cover a thereof. The effect of this.
arrangement is that when the cover a¹ is in place none of the ball races d can
possibly slip along the bearing no matter what their position, some portions of their
screw threads always interlocking with the thread of the bearing. In assembling
or taking apart the bearing the cap or cover a' must always first be removed.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed we declare that
what we claim is :-
1. In a ball bearing of the class set forth, in combination, an interrupted screw
thread on the interior of the casing or casting, and a correspondingly interrupted
screw thread on the peripheries of the ball races, substantially as described.
2. A ball bearing comprising a divided casing or casting having an interrupted
screw thread formed therein, and a plurality of rows of balls separated by ball
races provided with correspondingly interrupted peripheral screw threads sub-
stantially as described.
3. In a ball bearing, in combination, the outer casing with internal interrupted
screw thread, the ball races d with correspondingly interrupted peripheral screw
threads, and the notches or grooves d' in said races d, substantially as and for the
purpose described and illustrated.
4. In a ball bearing, in combination, the casing with interrupted screw thread,
the ball races with correspondingly interrupted screw threads, and an inclined
channel in the casing leading to a pocket substantially as and for the purpose
described and illustrated.
5. The general construction arrangement and combination of parts constituting.
improvements in ball bearings substantially as described and illustrated.
Dated this 3rd day of April 1894.
E. P. ALEXANDER & SON,
Fels. Chartered Inst. Patent Agents,
19, Southampton Buildings, Chancery Lane, London, W.C.,
For the Applicants.