Improvements in the Ball-bearings of Bicycles, Tricycles, and other Velocipedes.
Year: 1890

page_text: Date of Application, 21st Feb., 1890
Complete Specification Left, 30th Oct., 1890-Accepted, 6th Dec., 1890
PROVISIONAL SPECIFICATION.
Improvements in the Ball-bearings of Bicycles, Tricycles, and other
Velocipedes.
We WALTER JOHN LLOYD, and WILLIAM PRIEST, trading as The Quadrant Tricycle
Company, of Sheepcote Street, Birmingham in the County of Warwick, Velocipede
Manufacturers do hereby declare the nature of this invention to be as follows:-
Our invention has for its object to exclude dust from the said bearings more
effectually than is done in bearings of the ordinary construction, and consists of the
improvements in the said bearings hereinafter described.
The said bearings consist essentially of two parts one part being fixed to the axle
and called the cone and the other part being fixed to the bearing or hub and called
the cup or case. In grooves formed in the opposed faces of the cone and cup or case,
the balls are contained and roll as is well understood. A shoulder on the inner face
of the cone takes into the interior of the cup or case and to some extent prevents the
entrance of dust into the bearing.
In making bearings according to our invention we form a cylindrical rim on the
periphery of the cone which rim when the said cone is in position extends a short
distance over the end of the cup or case thereby enclosing the said end of the cup or
case and very effectually preventing the access of dust to the interior of the bearing.
Or we make the cone thicker than usual at its marginal part and in the inner face
of the thick part we make a groove of a size and shape suitable for the reception of
the tubular end of the cup or case. When the cone is in position, the tubular end of
the cup or case occupies the groove in the inner face of the cone and thereby effectually
excludes dust. The groove described may be roughly formed in the stamping of the
cone and finished by turning.
Or the groove may be made in the end of the cup or case and the inner face of the
cone have a projecting circular rib engaging in the said groove.
Dated this 21st day of February 1890.
W. T. WHITEMAN,
Agent for the Applicants.
COMPLETE SPECIFICATION.
Improvements in the Ball-bearings of Bicycles, Tricycles, and other
Velocipedes.
We WALTER JOHN LLOYD and WILLIAM PRIEST trading as The Quadrant Tricycle
Company of Sheepcote Street Birmingham in the County of Warwick Velocipede
Manufacturers do hereby declare the nature of our invention and the manner in which
the same is to be performed to be particularly described and ascertained in and by
the following statement :-
Our invention has for its object to exclude dust from the said bearings more
effectually than is done in bearings of the ordinary construction and consists of the
improvements in the said bearings hereinafter described.
The said bearings consist essentially of two parts, one part being fixed to the axle
and called the cone and the other part being fixed to the hearing or hub and called
the cup or case. In grooves formed in the opposed faces of the cone and cup or case
the balls are contained and roll as is well understood.
A shoulder on the inner face of the cone takes into the interior of the cup or case
and to some extent prevents the entrance of dust into the bearing.
In making bearings according to our invention we form a cylindrical rim on the
DR17

page_text: periphery of the cone which rim when the cone is in position extends a short distance
over the end of the cup or case thereby enclosing the said end of the cup or case and
very effectually preventing the access of dust to the interior of the bearing. Or we
make the cone thicker than usual at its marginal part and in the inner face of
the thick part we make a groove of a size and shape suitable for the reception of the
tubular end of the cup or case. When the cone is in position the tubular end of
the cup or case occupies the groove in the inner face of the cone and thereby effectually
excludes dust. The groove described may be roughly formed in the stamping of the
cone and finished by turning.
Or the groove may be made in the end of the cup or case and the inner face of the
cone have a projecting circular rib engaging in the said groove.
Figure 1 of the accompanying drawing represents in longitudinal section and
Figure 2 in end elevation the crank axle of a velocipede to which ball bearings
constructed according to our invention are applied, one of the cranks being removed;
Figure 3 represents the screwed or removable cone in section and front elevation ;
Figure 4 represents a modification of the cup and cone as hereinafter described.
a is the crank axle and is the sleeve or hub in which the axle works, the said
sleeve being carried by the fixed framing c of the velocipede; d is the crank and e is
the chain wheel. The two parts of the bearing at one end of the axle consist of the
cup or case ffixed to the sleeve b and the cone g fixed to or forming part of the
axle a and the two parts of the bearing at the other end of the axle consist of a similar
cup or case and cone 9 but the cone is movable being screwed internally and
screwing upon the left hand screw thread near the end of the axle a. Between the
opposed faces of the cups and cones f, g and f, g the balls i, i are contained and
work in the usual way. The end of each of the cups or cases f, f2 of the bearings
is made tubular at k and the marginal part of each of the cones 9, 9 is thicker than
usual and in the inner face of the thick part an annular groove l is made for the
reception of the tubular end k of the cups or cases ff. It will be seen that when the
cones 9 g are in position as represented in Figure 1 the tubular ends k, k of the cups
or cases occupy closely the grooves 1, 1 in the said cones 9 g². Dust is thereby
effectually excluded from the bearings. The parts of the ball bearings are secured in
their places on the axle a and the position and adjustment of the cone surfaces of the
bearings effected by means of the screwed cone or cap 92 screwing on the screwed
end of the axle as is well understood.
The position of the engaging parts kl of the cups and cones may be varied with the
same effect; that is, the annular grooves may be inade in the end of the cup for f
(the said end being thickened) and the inner face of the cone g or g' be provided with
a projecting annular rib for taking into the groove in the end of the cup.
Figure 4 represents in section another method of preventing the entrance of
dust into the bearing.
In this arrangement the periphery of the cone is provided with a cylindrical
rim m which rim when the said cone is in position as represented in the drawing
extends over or embraces the tubular end of the cup or case f³ so as to enclose the
said end and prevent the entrance of dust. The fixed cone at the right hand end of
the bearing Figure 1 may be provided with the rim arrangement represented in
Figure 4.
Our improvements may be applied generally to the ball bearings of bicycles,
tricycles and other velocipedes.
Having now particularly described and ascertained the nature of our invention
and the manner in which the same is to be performed we declare that we claim
as our invention of "Improvements in the ball bearings of bicycles, tricycles and other
velocipedes":
-
First Preventing the access of dust to the interior of ball bearings by making an
annular groove at the thick marginal part of the cone and making the end of the cup
or case tubular for taking into the said groove in the cone, substantially as hereinbefore
described and illustrated in Figures 1, 2 and 3 of the accompanying drawing; or

page_text: making the end of the cone tubular and making a groove in the thick end of the cup
for receiving the said tubular end of the cone as hereinbefore described.
Secondly-Preventing the access of dust to the interior of the ball bearing by
making a cylindrical rim on the periphery of the cone for enclosing or embracing the
3 tubular end of the cup substantially as hereinbefore described and illustrated in
Figure 4 of the accompanying drawing.
Dated the 28th day of October 1890
WALTER JOHN LLOYD.
WILLIAM PRIEST.