Improved Ball Bearing Boxes for Naves of Wood Wheels and Axles.
Year: 1895

page_text: Date of Application, 20th Dec., 1895
Complete Specification Left, 21st Sept., 1896-Accepted, 19th Dec., 1896
PROVISIONAL SPECIFICATION.
Improved Ball Bearing Boxes for Naves of Wood Wheels
and Axles.
JAMES PARR Cycle Manufacturer 61 Friar Lane Leicester Leicestershire
lo hereby declare the nature of this invention to be as follows:--
The great objection to the ball bearing boxes now in use is that the boxes in
which the ball bearings run are so large, and fitting inside the wood nave make it
necessary to cut away a large portion of the wood nave thus considerably weakening
it. A wheel with a small and light nave cannot be used.
My invention consists of improved ball bearing boxes and axles for naves of
wood wheels.
By my arrangement of the cones, bushes, & balls I am enabled to use a much
smaller bush or box, thus allowing it to be fitted without cutting away or weakening
the wood nave. Or a smaller wood nave may be used. In my improved ball
bearing boxes and axles, the balls, cones, and bushes (on inside bearing of nave of
wheel where the great strain comes and strength is required) stand outside of
nave; (if required they may be let in by countersinking the wood a trifle but not
in any way to weaken it) this while enabling me to use a much smaller box to go
through centre of wood nave, allows me to use much larger balls, whereby the
friction is diminished, greater strength obtained, greater wearing powers given to
the bearing, this adding to the speed, lessening the propelling power required, and
greatly reducing the chances of crushing or breaking the balls. In the other end
which comes on outside end of axle, the bush, or cup in which the balls revolve is
inside the bush or box which passes through wood nave, the cone being screwed on
axle to allow for adjustment.
It may be made with both ball bearings standing outside of wood nave, and one,
or both ends which carry the bushes, or cups can be screwed on to bush or box, or
one end may be formed on the box, or bush, or be a part of the box which goes.
through wood nave. The axle carries the fast and adjusting cones.
Another form of making it is by a bush or box which goes through centre of
Dave of wheel, the ends being coned or curved for the balls to work on, and the
cup or bush which holds balls in position is fixed on axle, or into a box formed on
axle to receive same. The cup or bush on outside end of axle is screwed on to the
axle to allow for the adjustment of balls, and is fixed by a lock nut, or projecting
lug on cup or bush, the said projecting lug being split & pinched or held together
by a set screw. Or the bush or box may be made with one end coned or curved
at end for balls to work on; standing outside of nave on inside bearing of wheel
where the greatest strength is required; on the other end of bush or box the
cup or cone is inside the bush or box, and the adjusting cone is screwed on end
of axle.
In the aforementioned descriptions, the cup or cone, which can be made on the
axle; fit or screw into a box made on the axle; or the box may be made in
conjunction with axle flap to which the springs are attatched.
Doted this 10th 'der of December 1905

page_text: DaH Dearing
DOXES Ior
Naves OI Wood W nevis
and Axles,
JAMES PARR 61 Friar Lane Leicester Cycle Manufacturer 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 :-
The great objection to the ball bearing boxes now in use is that the boxes in
which the ball bearings run are so large, and fitting inside the wood nave make it
necessary to cut away a large portion of the wood nave thus considerably weakening
it. A wheel with a small and light wood nave cannot be used.
My invention consists of improved ball bearing boxes and axles for naves of
wood wheels, which by my arrangement of the cones, bushes, and balls I am
enabled to use a much smaller bush or box, thus allowing it to be fitted without
cutting away or weakening the wood nave. Or a smaller wood nave may be used.
In my improved ball bearing boxes and axles, the balls, cones, and bushes (on
inside bearing of nave of wheel where the great strain comes and strength is
required) stand outside of nave; (if required they may be let in by countersinking
the wood a trifle but not in any way to weaken it) this while enabling me to use a
much smaller box to go through centre of wood nave allows me to use much larger
balls, whereby the friction is diminished, greater strength obtained, greater wearing
powers given to bearing, this adding to the speed, lessening the propelling power
required and greatly reducing the chances of crushing or breaking the balls. In
the other end which comes on outside end of axle, the bush, or cup in which the
balls revolve is inside the bush or box which passes through wood nave, the cone
being screwed on axle to allow for adjustment. It may be made with both ball
bearings standing outside of wood nave, and one, or both ends which carry the
bushes; or cups can be screwed on to bush or box, or one end may be formed on
the box, or bush, or be a part of the box which goes through wood nave. The
axle carries the fast and adjusting cones.
Another form of making it is by a bush or box which goes through centre of
nave of wheel, the ends being coned or curved for the balls to work on, and the
cup or bush which holds balls in position is fixed on axle, or into a box formed on
axle to receive same. The cup or bush on outside end of axle is screwed on to the
axle to allow for the adjustment of balls, and is fixed by a lock nut, or projecting
lug on cup or bush, the said projecting lug being split, and pinched and gripped
tight on axle by a set screw. Or the bush or box may be made with one end
coned, or curved at end for balls to work on standing outside of nave on inside
bearing of wheel where the greatest strength is required; on the other end of bush
or box the cup or cone is inside the bush or box, and the adjusting cone is screwed
on end of axle.
I sometimes make either the aforementioned cup or cone on the axle and
sometimes simply fit either the cup or cone whichever I prefer into a box made on
the axle. Sometimes however, I adjust the cup or cone by means of a screw
thread or other device into the box made (as before stated) on the axle. It is
quite immaterial whether the cup or the cone is used in the manner described or
whether those reversible parts are made on or are suitably adjusted to the axle
each method is equivalant to the other and the operation of each necessarily gives
the same result.
In the accompanying sheets of drawings, Fig. 1. Sheet 1 is a sectional
side elevation of ball bearing box and axle fitted to ordinary wood nave
with the ball bearings, cones, and bushes on inside end of wood nave standing

page_text: outside of wood nave. This drawing shows wood nave A, A, with box B, B,
cone C, C, balls D D and axle E passing through, El shows axle flap for
attaching springs to. At the other end of nave the box is shown at F, F,
with balls G, G, and adjusting cone H which is firmly locked in position by
lock nut I. To prevent the balls dropping out at each end I insert a ring or
washer L, L, L, L and finally covered by cap J which screws into box F. The
hoop K is the ordinary iron hoop which is put on all wood naves. N. N. is a steel
band.
Fig. 2 Sheet 2 shows a sectional side elevation of ball bearing boxes and axle
fitted to ordinary wood nave in which A, A is the wood nave B, B the box which
is curved for the balls to work on shown at C. C with balls D, D and which are
held in position in cup D' by washer or ring L, L. E shows axle with axle
flap E for springs. At the other eiz. outside end of wood nave the balls are
shown G G with adjusting cone H, H and locked firmly in position by lock nut [
the balls being held in position by ring or washer L, L and covered by cap J
which screws into box F. K, K being ordinary iron hoop as before described.
Fig. 3 Sheet 3 shows wood nave with both ball bearing boxes fitted on outside
of wood nave.
A, A is the wood nave, B B the box with curved ends C, C, C, C
and balls D, D, D, D and which are held in cup D' by washer or ring L, L which
the axle E passes through. The flap E' axle E and cup D' can be made
seperately as shown, or in one solid piece with a bush let into cúp D' for balls C, C
to work in. On the outside end the cup D is screwed on to axle E and is the
adjusting cup, J¹ is a D washer and is locked and held in position by cap J
which acts as a lock nut.
Fig. 4 Sheet 4. A, A shows the wood nave B, B the box D, D, D, D the balls
E the axle E' the axle flap K, K the iron ring which goes round the outsides of
nave. The cup D screwed on to box B and stands outside of wood nave and is
split and gripped by screw M, C is the cone, LL the rings or washers to hold
balls in place. On the outside end of nave the cup D2 is screwed on to box B or
it may be made solid forming part of the box, the adjusting cone H, is screwed on
to axle E and being split is held in position by screw M. J is the cap which
screws into cup D. Instead of cones or cups being formed on, in, or attached to
axle as shown in drawings they may be made on, or attached to a sleeve for the balls
to work on, the axle passing or fitting into sleeve and fastened to same.
Having now particularly described the nature and object of my said invention
and the manner of carrying the same into effect, I wish it to be understood that
what I claim is,
Ball bearing boxes and axles, howsoever constructed with one or both ball
bearings standing outside the wood nave of a wheel (which however may be
slightly countersunk but not sufficiently to weaken the nave) and effected in the
various manners as hereinbefore described and shown by accompanying drawings,
any combination of same or any other equivalent adjustment.
Dated this 19th day of September 1896.
JAMES PARR.