Improvements in Cycles, also applicable to other Locomotives and Engines.
Year: 1893

page_text: Date of Application, 25th Nov., 1893
Complete Specification Left, 25th Aug. 1894-Accepted, 17th Nov., 1894
PROVISIONAL SPECIFICATION.
Improvements in Cycles, also applicable to other Locomotives
and Engines.
We JAMES MCCANN of 111 Donegall Street Auctioneer Valuer and Cycle
Merchant and JAMES FITZGERALD of 2 Oldpark Avenue Painter and Decorator
both in the City of Belfast and County of Antrim in Ireland do hereby declare
the nature of this invention to be as follows:-
:-
Our invention has reference to the construction of bicycles, tricycles and other
locomotives or engines and consists in the application of mechanical means and
contrivances whereby the speed of the same may be largely increased with equal
or less motive power and the motion thereof may be controlled without the aid of
a brake.
For these purposes we employ, on cycles, a central bracket and suitable hub
brackets to support the necessary axles, shafts or spindles and their bearings (and
a band or chain belt if used) with a wheel fixed upon the central axle carrying levers
and pedals of the usual kind and spirally threaded or grooved circumferentially
which actuates a small wheel furnished with roller teeth and fixed upou an
independent transverse shaft or axle carrying an ordinary pinion which engages with
another small wheel furnished with roller teeth fixed upon a shaft extending to the
driving wheel and carrying at that end of it another ordinary pinion which engages
a third wheel furnished with roller teeth and fixed upon the hub of the driving
wheel.
The shaft or spindle last mentioned may be enclosed in a portion of the frame of
the machine.
We can dispense with the use of a brake and control the motion of the machine
by means of a gearing lever, consisting of several levers with connecting bars, a
spring and a sliding hub axle.
A modification of the arrangements we have described may be applied to other
locomotives and engines and a greater number of shafts or-spindles and wheels such
as we have described may be employed for the purpose of still further increasing
the speed and power.
Dated this 24th day of November 1893.
HYNDMAN & DICKSON,
6, Chichester Street, Belfast, Agents for Applicants.
COMPLETE SPECIFICATION.
Improvements in Cycles, also applicable to other Locomotives
and Engines.
We JAMES MCCANN of 111 Donegall Street Auctioneer Valuer and Cycle
Merchant and JAMES FITZGERALD of 2 Oldpark Avenue Painter and Decorator
both in the City of Belfast and County of Antrim in Ireland do hereby declare
the nature of this invention and in what manner the same is to be performed, to bé
particularly described and ascertained in and by the following statement :-
Our invention has reference to the construction of bicycles tricycles and other
locomotives or engines and consists in the application of mechanical means and
contrivances whereby the speed of the same may be largely increased with equal
'

page_text: or less motive power and the motion thereof may be controlled without the aid of
a brake.
For these purposes we employ, on cycles, a central bracket and suitable hub
brackets to support the necessary axles, shafts or spindles and their bearings (and
a band or chain belt if used) with a wheel fixed upon the central axle carrying levers
and pedals of the usual kind and specially threaded or grooved circumferentially
which actuates a small wheel furnished with roller teeth and fixed upon an
independent transverse shaft or axle carrying an ordinary pinion which engages
with another small wheel furnished with roller teeth fixed upon a shaft extending
to the driving, wheel and carrying at that end of it another ordinary pinion which
engages a third wheel furnished with roller teeth and fixed upon the hub of the
driving wheel.
The shaft or spindle last mentioned may be enclosed in a portion of the frame of
the machine.
We e may provide a clutch on the transverse shaft to engage with the hub of
the pinion thereon and throw the pedals out of action and keep them in engagement
while the machine is being driven by the use of a spiral spring on the transverse
shaft or we may dispense with such transverse shaft and the roller clutch and
pinion thereon and transmit the motion direct from the threaded or grooved wheel
to the shaft extending to the driving wheel. We also prefer to dispense with the
use of a driving band or chain belt.
The spirally threaded or grooved wheel, transverse bar and the wheel, pinion,
clutch and spring thereon and the contiguous wheel or pinion on the shaft extending
to the driving wheel may be enclosed and protected in a suitable casing.
We can further dispense with the use of a brake and control the motion of the
machine by means of a gearing lever, consisting of several levers with connecting
bars, a spring and a sliding rod and key enclosed on the hub axle.
A modification of the arrangements we have described may be applied to other
locomotives and engines by placing the roller toothed wheel on either the
driving or driven shaft and working it into a specially threaded or grooved
wheel and a greater number of shafts or spindles and wheels such as we have
described may be employed for the purpose of still further increasing the speed
and power.
And in order that our said invention may be fully understood we shall now
proceed more particularly to describe the same and to refer to the several
drawings upon the sheets hereunto annexed the same letters of reference indicating
or corresponding parts of our improvement throughout all the
the same
figures
Fig. I is a side elevation of a bicycle constructed according to our invention and
shewing a central bracket and suitable hub brackets supporting the necessary
axles, shafts or spindles and their bearings, a wheel fixed upon the central axle and
the levers for carrying the pedals, a small roller toothed wheel on a transverse
shaft mounted with a pinion to engage with a similar wheel mounted on a shaft
which extends to the driving wheel and carries a pinion to engage with a third
roller toothed wheel fixed upon the hub of the driving wheel; also a clutch upon
the transverse shaft and a spiral spring to cause it to engage the pinion on such
shaft.
Fig. I is an enlargement in side elevation and
Fig. 1 is an enlargement in plan of the same parts as are shewn in Fig. I.
Fig. IV is a side elevation of a bicycle provided with gearing levers and
connecting bars, a spring and a sliding rod and key enclosed in the hub axle for
changing the speed and
Fig. V is an enlargement in side elevation of the parts shewn in Fig. IV.
Figs. VI and VII show a modification of the invention as applicable to a
locomotive for the purpose of increasing the speed and
Figs. VIII and Ix show another modification applicable to a traction engine
for reducing the speed.

page_text: a is the central bracket and b b are the hub brackets supporting the axles, shafts
e is a wheel fixed upon the
or spindles c, c¹ and the bearings therefor d, d, d d.
central axle c and specially threaded or grooved circumferentially to actuate a
small wheel on the transverse shaft e¹ furnished with roller teeth engaging with
the wheel e. g is a clutch on the shaft c' engaging with the pinion h on the same shaft
and i is a spring holding such clutch and pinion in engagement. kk are the pedal
levers as ordinarily employed. The pinion on the shaft c' engages with another
roller toothed wheel on a shaft m enclosed in portion of the frame of the machine
and extending to the driving wheel and carrying another pinion n by which the
notion of the roller toothed wheel is transmitted to a third roller toothed
wheel o upon the hub of the driving wheel. o is a bell crank lever connected with
a rod and handle such as are ordinarily employed to operate a brake, the rod being
placed at the back of the cycle head and the frame being bifurcated to receive it.
This lever p is connected by a rod v with a similar levers attached to a sliding
rod t enclosed in the transverse shaft e¹ which is enlarged and bored to receive it.
u is a key or feather to engage alternately with one or other of the pinions v and w
which are so pitched as to vary the speed of the driving wheel relatively to that
of the pedals according to the pinion engaged through the action of the sliding
rod t.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed we would have it to be
understood that we do not claim as of our invention or the exclusive use of a
central bracket and hub brackets a grooved or threaded wheel with roller toothed
wheels and pinions mounted on shafts nor a sliding rod and key except when the
same are constructed specially and employed according to our invention nor do we
claim the use of axles shafts or spindles, pedals, levers cranks rods clutches or
springs or any other of the separate mechanical parts which are employed in
the construction or application of our invention but we declare that we claim
1. The use in cycles and other locomotives and engines of a wheel on the central
axle with gearing wheels and pinions and a shaft extending to the driving wheel
constructed and employed substantially in the manner and for the purposes described
as shewn in the drawings.
2. The use in cycles and other locomotives and engines of a shaft extending to
the driving wheel mounted with gearing wheels and pinions and constructed and
employed substantially in the manner and for the purposes described and as shewn
in the drawings.
3. The manufacture and use in cycles and other locomotives and engines of a
clutch employed substantially in the manner and for the purposes described and as
shewn in Figs. I II and III of the drawings.
4. The use in cycles and other locomotives and engines of two or more pinions
with a sliding rod and key or feather constructed and employed substantially in the
manner and for the purposes described and as shewn in Figs. IV and V of the
drawings.
5. The respective combinations and arrangement of parts forming our improved
cycle gearings constructed and employed substantially as described and illustrated
in Figs. III and III and in Figs. IV and V respectively of the drawings hereunto
annexed.
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