Improvements in Multiplying Gear for Cycles:
Year: 1897

page_text: Date of Application, 25th Oct., 1897
Complete Specification Loft 18th July 1898- Accented 25th Oct. 1898
Improvements in Multiplying Gear for Cycles:
I, PETER FLEUREN, Banker, of Venloo, in Holland, do hereby declare the nature
of this invention to be as follows;-
This invention relates to an improved driving device for cycles.
In the annexed drawing Fig. 1 is a cross section and Fig. 2 is a plan view of
the driving device enclosed in a casing.
On the axle a of the wheel carrying the two cranks there is keyed a conical
toothed wheel which gears with a toothed crown arranged on the largest of the
balls seated turnably round the axle in a casing 6 and transfers thus the
movement by means of the further toothed crowns seated on further balls to a
second conical toothed wheel r¹ loosely seated on said axle. The transmission
ratio corresponds to the diameters of the balls, which diminish constantly from the
fixed toothed wheel r and are chosen in such a manner, that when for instance
the wheel r makes one revolution the wheel 1 makes two or more although the
conical wheel 1 is seated loosely on the axle a, it is however strongly connected
with the casing b which serves as a hub for the wheel, so that when the wheel r¹
is turned the cycle wheel must also turn but at a quicker rate.
Dated this 25th dox of October 1897
HERBERT HADDAN & Co.,
Agents to Applicant, 18, Buckingham Street, Strand, London.
Improvements in Multiplying Gear for Cycles.
I, PETER FLEUREN, Banker, of Venloo, in Holland, do hereby declare the nature
of this invention and in what manner the same is to be performed to be particu-
larly described and ascertained in and by the following statement;
This invention relates to an improved driving device for cycles.
-
In the drawing left with my Provisional Specification Fig. 1 is a cross section
and Fig. 2 is a plan view of the driving device enclosed in a casing.
On the axle à of the wheel carrying the two cranks there is keyed a conical
toothed wheel r which gears with the teeth of a series of wheels c resembling
in shape balls, mounted on radial axles in a casing b and thus transfers the
movement through several further series of similar wheels of successively reduced
diameter to a second conical toothed wheel r¹ loose on said axle. The transmission
ratio corresponds to the diameters of the wheels, which diminish constantly from

page_text: more.
the fixed toothed wheel r and are chosen in such a manner, that when for instance
the wheel r makes one revolution the wheel 71 makes two or
Although the conical wheel 1 is loose on the axle a, it is, however
strongly connected with the casing 6' which serves as a hub for the wheel, so
that when the axle a with its wheel r is turned the cycle wheel must also turn
but at a quicker rate.
The casing b consists of an inner sleeve 62 and an outer sleeve 63 connected by
the axles of the wheels e so as to form a whole which is adapted to be fixed by
its projecting part 15 against revolution but within which the shaft a revolves.
Lateral displacement of casing b is prevented by the bevelled wheel r keyed on
the shaft and by the bevelled wheel fastened on the outer casing but the
shaft a can rotate within casing b. The rotation of the shaft a is consequently
transferred by means of wheel r to the wheels c and through these latter to the
wheel and to the casing 1 fixed to wheel r. This latter forms the hub of
the cycle wheel and is loose on the axle a.
Having now particularly described and ascertained the nature of this invention
and in what manner the same is to be performed I.. declare that what I
claim is:-
ว
An improved multiplying gear for cycles in which two conical' toothed wheels r
and are arranged parallel to one another one of them keyed on the axle carrying
the two pedal cranks and the other on the wheel casing and geared together by
a series of toothed wheels resembling balls mounted in a fixed casing b.
Dated this 18th dov of Iul. 1000
HERBERT HADDAN & Co.,
Agents to Applicant, 18, Buckingham Street, Strand, London.