Improvements in Ball Bearings.
Year: 1891

page_text: Date of Application, 4th Dec., 1891
Complete Specification Left, 3rd Sept., 1892-Accepted, 8th Oct., 1892
PROVISIONAL SPECIFICATION.
Improvements in Ball Bearings.
I, FRANK POOLE DELAHAYE of Station Road Crayford in the County of Kent
Optician do hereby declare the nature of this invention to be as follows :—
My invention refers to ball bearings for use on bicycles, tricycles and other road
vehicles and the shafts or spindles of all kinds of machinery where the suppression
of friction is of particular advantage.
As applied for instance to the bearings of a cycle wheel the spindle and fixed
cone are made much in the ordinary manner and provided at the other end with a
similar movable or adjusting cone which is made so as to allow of being screwed up
in order to take up the wear of the bearings.
The cones have a row or circle of balls running thereon but instead of the balls
being in contact with the recess in the hub or centre of the wheel or other part I
interpose a ring or independent cone which has an annular groove both inside and
out, the inside groove being for the row of balls already described while the
outside groove serves to carry another row of balls which latter run in between
it and the hub. Instead of having only two rows of balls, one row inside the
independent cone and the other outside of same, I may have four rows for each
bearing, that is two rows inside the independent cone and the other two outside
of the same.
By the use of bearings constructed according to my invention, friction is
considerably reduced and consequently a greater speed of revolution may be
obtained in the case of bicycles or tricycles with the same amount of propelling
power because each hub bearing of the wheel or wheels revolves on one row (or
two rows) of balls which latter again run on the independent cone and the cone
itself runs on the second row (or two rows) of balls on the fixed cone.
Dated this 4th day of December 1891.
JENSEN & SON,
77, Chancery Lane, London, W.C., Patent Agents.
COMPLETE SPECIFICATION.
Improvements in.Ball Bearings.
I, FRANK POOLE DELAHAYE of Station Road Crayford in the County of Kent,
Optician 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 refers to ball bearings for use on bicycles, tricycles and other road
vehicles running on wheels, and the shafts or spindles of all kinds of machinery
where the suppression of friction is of particular advantage.
Referring to the example shown on the accompanying sheet of drawings, Figure 1
is a longitudinal section through the hub of a cycle wheel and Figure 2 is an end
view thereof with the cone A and cap I removed.
•
The cones A are both provided with internal screw threads and are screwed on
to the spindle B but if desired one cone may be made in one with the spindle B and
the other only made to screw up for adjustment.
The cones A have a row or circle of balls C running thereon but instead of the
balls being in contact with the recess in the hub or centre of the wheel H
I interpose a ring or independent cone D which has an annular groove both inside
and out as shown, the outside groove being for the row of balls C while the inside
DO71

page_text: groove serves to carry another row of balls E which latter run in between the ring D
and the hub. Instead of having only two rows of balls, as shown, I may have
four rows for each bearing, that is two rows inside the ring D and the other two
outside of the same. The letters F designate the forks to which the spindle is
connected in the usual manner by lock nuts G. The bearings are kept as free from
dust and mud as possible by the dust caps I which slip over the ends of the
hub H.
By the use of bearings constructed according to my invention friction is
considerably reduced and consequently a greater speed of revolution than usual
may be obtained with the same amount of energy expended, because each hub
bearing of the wheel or wheels revolves on one row (or two rows) of balls E which
latter again run on the independent ring D and the ring itself runs on the second
row (or two rows) of balls C on the stationary cone A.
The danger of a cycle wheel or other bearing locking on a ball breaking therein
is greatly minimised as in that event the broken pieces of the ball will only stop the
working of that row of balls and the wheel will still run on the row of balls which
is intact.
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 :-
In a ball bearing the combination of a stationary cone A mounted on a spindle B
said cone being provided with a row or rows of balls C on which runs an
independent ring D provided with grooved paths for the balls and a row or rows of
balls E running between the ring Ď and the hub H substantially as decribed and
shown.
Dated this 3rd day of September 1899
JENSEN & SON,
77, Chancery Lane, London, W.C., Patent Agents.