Improvements in Ball Bearings for Machinery.
Year: 1894

page_text: Date of Application, 10th July, 1894
Complete Specification Left, 10th Apr., 1895-Accepted, 11th May, 1895
PROVISIONAL SPECIFICATION.
Improvements in Ball Bearings for Machinery.
We, CHARLES HERBERT SIMS, of 117, Entwisle Road, Rochdale, Lancashire,
Draughtsman, and EDWIN SYKES, of St. Andrew's Road, Huddersfield, Yorkshire,
Engineer, do hereby declare the nature of this invention to be as follows:-
Our invention consists in adapting or applying to driving shafts and shafts of
machinery in general, a new and peculiar construction of ball bearings. According
to our invention we secure upon the shaft, in any suitable manner, oue or more
conical rings.
Surrounding the conical ring or rings is a shell or tube and between the conical
ring and shell we place a series of antifriction bowls. The antifriction bowls are
kept in position by one or more washers made secure by lock nuts screwed onto
the end of the conical rings. As the upper surface of the conical ring wears, the
antifriction bowls can be moved higher up the inclined surface or surfaces by means
of the lock nuts, thereby compensating for the wear.
When two conical rings are employed, the larger ends of each cone adjoin each
other, so that when the antifriction bowls are adjusted they are made to approach
each other. To prevent dust getting to the parts, dust-proof caps may be used in
combination with the lock nuts. By the application of the conical ring in com-
bination with the antifriction bowls, shafts of machinery will run smoothly and leas
power will be required to revolve them, consequently a saving in motive power
will be effected.
Dated this 9th day of July 1894
TASKER & CROSSLEY,
Halifax, Agents.
We, CHARLES HERBERT SIMS, of 117, Entwisle Road, Rochdale, Lancashire
Draughtsman and EDWIN SYKES, of St. Andrew's Road, Huddersfield, Yorkshire
Engineer, 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 :-
Our invention consists in adapting or applying to driving shafts and shafts of
inachinery in general, a new and peculiar construction of ball-bearing. According
to our invention we secure upon the shaft in any suitable manner, one or more
conical rings.
Surrounding the conical ring or rings is a shell or tube and between the conical
ring and shell we place a series of antifriction balls. The antifriction balls are
kept in position by one or more washers made secure by lock nuts screwed onto the
end of the conical rings, or into a box or casing. As the upper surface of the
conical ring wears, the antifriction balls can be moved higher up the inclined
surface or surfaces by means of the lock uuts thereby compensating. for
the wear

page_text: For the purpose of fully describing and ascertaining our said invention we
herein make reference to the annexed sheets of drawings wherein :-
Fig. 1 is longitudinal section of our improved ball bearing as applied to the
shafting of machinery, and,
Fig. 2 is end elevation of same.
Figs. 3, 4, 5, 6, 7 and 8 are longitudinal sections of the bearings shewing
modifications in the arrangement and construction of the parts.
The sume letters of reference denote corresponding parts in all the figures.
A represents the bracket, pedestal or footstep for receiving the bearing and
carrying the shafting B. The bearing may be composed of any suitable number
of rings or bushes Chaving one or two inclined surfaces each forming the frustrum
of a cone as shewn in Figs. 1 to 7; or of a single bush C having a double conical
surface as shewn in Fig. 8.
The said bushes are mounted on the shaft B, or on a sleeve or tube D secured to
said shaft, as shewn in Figs. 4 and 7, and they are made so as to slide on a key and
corresponding groove; or other equivalent means, so that whilst the said bushes C
are adapted to turn with the shaft, they, or two or more of them, shall remain free
to be moved laterally on the shaft or tube. These bushes C are arranged side by
Bide, at short intervals apart with their conical surfaces opposed to each other, and
in the annular V recesses or grooves thus formed between them are placed the
antifriction balls E.
Surrounding the said antifriction balls and forming the outer stationary bearing
surfaces therefor, is a straight ring F, fitting within a casing or shell G, as shewn
in Figs. 1, 2, 3, 4 and 8; or within the bracket or pedestal A as shewn in Figs. 5, 6
and 7. Instead of a single ring two rings F F, may be employed, as shewn in
Fig. 8, each fitting tightly against a central rib or projection formed internally of
the casing G, or made separate therefrom.
The casing or shell G is slided into and fits niceley within the bracket or
pedestal A in which it is screwed by screws a or by a set screw, to prevent it
turning round, and the ring or rings F F, for a similar reason are secured to the
casing G by screws b.
The conical bushes C are held in position by nuts H, H', screwed into each end
of the casing G, or onto the shaft B or tube D at each end, or at one end only, of
the bearing, as illustrated in the several figures, in the latter case, the nut H' acting
as a lock nut.
In Fig. 1 the bosses on the nuts H, H' abut against the faces of the two outer
conical bushes, whilst in Fig. 2, they are lengthened and enter corresponding
recesses formed in the faces of the said bushes.
Where the nuts H, H', are screwed into the same end of the bearing as in
Figs. 4 to 7, the outer conical bush C at the opposite end of the bearing is engaged
with a shoulder or collar on the shaft B or tube D which prevents its end wise
movement.
In order to adjust the bearings to compensate for the wear of the bearing surfaces
or balls E, the nuts H H¹ in Figs. 1 and 3, or the nuts H', in Figs. 4, 5 and 6,
are screwed further into the casing G, or onto the shaft B or tube D, whereby the
bushes C are forced nearer to each other and the balls E consequently raised to a
higher position on the conical surfaces of said bushes C until the proper
adjustment between them and the bearing surfaces is obtained and the bearing
renewed.
In all cases the nuts are provided with keyways c or flat surfaces to receive a
suitable form of key or instrument for screwing them in or out of the bearing.
For a long bearing wherein two or more bearing surfaces are arranged at some
distance apart as shewn in Fig. 7, we secure one of the conical bushes marked C¹
on one end of a sleeve K which is adapted to slide end wise on the tube D and to
rotate therewith. The opposite end of said sleeve is forked or has projecting
fingers thereon which pass through slots or openings in the fixed conical bush Ci
and abut against the conical bush C. When the latter is forced end wise by the

page_text: nut H towards the bush C' it pushes the sleeve K end wise to the same extent and
places the bush C³ correspondingly nearer the bush C³, whereby both bearings are
simultaneously adjusted from one end.
In Fig. 8 the double conical bush or bushes C is or are fixed on the shaft B,
and, the antifriction balls E are held in position and are moved higher up the
conical surfaces to adjust them to compensate for wear and tear, by means of the
washers L against which the nuts H, H¹, are screwed as shewn. Leather washers
or packing strips d are interposed between the rings F, F, and the flanges on the
nuts H, H, to maintain tight joints between the parts.
To prevent dust and foreign matters getting to the bearings, dust proof caps.
may be used in addition to the nuts H, H, where the latter cannot be arranged to
sufficiently protect the interior of the bearing.
At Fig. 4 we shew in dotted lines such a cap or nut for sealing up the bearing
at the end furthest from the nuts H, H'. By the application of the conical bush
or bushes and antifriction balls to machinery shafting smoother running is ensured
and less power required to rotate same.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed we declare that what we
claim is :-
The construction, arrangement and combination of the parts comprising the
herein described ball bearing for driving shafting of machinery and the method of
and means for adjustiug same to compensate for wear and tear of the bearing
surfaces or balls substantially as set forth and as shewn in the several figures on the
annexed drawings.
Dated this 0th day of April 1805
TASKER & CROSSLEY,
Halifax, Patent Agents.