Improvements in the Ball Bearings of Cycles.
Year: 1897

page_text: PROVISIONAL SPECIFICATION.
Improvements in the Ball Bearings of Cycles.
I, PETER BAMBERGER, frisenr, of Witten on the Ruhr, in the Province of
Westphalia, and Kingdom of Prussia, do hereby declare the nature of this
invention to be as follows:-
:―
The invention represented in the accompanying drawing in Sheet 1 in a vertical
cross section in its details, in Sheet 2 arranged on the axle of a hinder wheel of a
bicycle relates to an improvement in the ball bearings for cycles, and serves for
the purpose to diminish the great friction and the great wear that still occurs in
the bearings for the axles of cycles.
The improvement is appliable to all kinds of cycle bearings for instance for
crank-brackets, pedal-axles, wheel-hubs and the like.
In the bearing case A a ring B of nearly triangular section is screwed in;
thereupon a circle of balls 1 is introduced which settle in a corresponding recess at
the angle frame f at the inner side of B, and then a loose ring C of a special
transverse section,--having on the outside two recesses between three
projections a, b, c, and on the inside one recess between the margins & and e,-
is pushed into B, before however C has sunk too deep, between c and the margin g
of B another circle of balls 2 is introduced, which lying in the recess between b
and c sink down with C and also rest against the inner surface of B.
The balls 1 are enclosed by the cavity formed by the recess between a and b and
the recess of B at f.
Both circles of balls thus lie perfectly firm and separated from each other by the
projection b. Now a socket F is screwed down upon the screw thread end E of
the axle D, at first so far that the balls 3 can be introduced between its flange hand
the margin of C. Not until these balls lie in the inner hollow of C, F is
screwed down entirely so that the hollow space between C and F encloses the
balls 3. After the cover G has been screwed on the case A, the entire ball bearing
is made fast and secure by screwing on the nut H.
It is consequently attained by this manner a plate freely depending between
several circles of balls in the bearing case.
By this arrangement the friction is distributed over several parts, and the cycle
becomes a much easy run than with single ball bearings.
Dated this 29th day of April 1897.
For PETER BAMBERGER,
Bernh. Brockhues.

page_text: improvements in the Ball Bearings, of Cycles.
I, PETER BAMBERGER, frisenr, of Witten on the Ruhr, in the Province of Westphalia,
and Kingdom of Prussia, 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 invention represented in the drawing filed with the Provisional Specification
in Sheet 1 in vertical cross-section, in Sheet 2 arranged on the axle of the hinder
wheel of a bicycle, relates to an improvement in the-ball bearings for cycles, and
serves for the purpose to diminish the great friction and the great wear that still
occurs in the bearings of cycles. The improvement is applicable to all kinds of cycle-
bearings for instance pedals, crank-brackets, wheel-hubs, and the like.
In the bearing case A a ring B of nearly triangular section is screwed in;
thereupon a circle of balls 1 is introduced which settle in a corresponding recess at
the angle frame f at the inner side of B, and then a loose ring C of a special
transverse section, having on the outside two recesses between three
projections a, b, c, and on the inside one recess between the margins d and e, is
pushed into B, before however C has sunk too deep, between c and the margin g
of B another circle of balls 2 is introduced, which lying in the recess between b
and c sink down with C and also rest against the inner surface of B.
The balls 1 are enclosed by the cavity formed by the recess between a and b, and
the recess of B at f..
Both circles of balls thus lie perfectly firm and separated from each other by the
projection b. Now a socket F is screwed down upon the screw thread end E of the
axle D, at first so far that the balls 3 can be introduced between its flange / and
the margin d of C.
Not until these balls lie in the inner hollow of C, F is screwed down entirely so
that the hollow space between C and F encloses the balls 3. After the cover Ghas
been screwed on the case A, the entire ball bearing is made fast and secure by
screwing on the nut H.
It is consequently attained by this manner a plate freely depending between
several circles of balls in the bearing case.
By this arrangement the friction is distributed over several parts and the cycle
becomes a much easy run than with single ball bearings.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is :-
Improvements in the ball bearings of cycles thereby characterized that a ring-
plate C is arranged freely suspended in such a manner between several circles of
balls 1, 2, 3, that the socket F fixed on the axle D and rotating with it runs against
oalls 3, balls 3 against the ring C, the latter against balls 1 and 2, and balls 1 and 2
against the ring B in the case A, all parts being thus able to work with the smallest
possible friction with regard to each other.
Dated this 28th day of January 1898.