A NEW OR IMPROVED BALANCE OR COMPENSATING DEVICE FOR TRICYCLES AND OTHER VELOCIPEDES
Year: 1884

page_text: I JOHN SHAW, of Priory Street, Coventry, in the County of Warwick Bicycle
Hollow Fork Manufacturer, do hereby declare the nature of the said Invention
for "A NEW OR IMPROVED BALANCE OR COMPENSATING DEVICE FOR TRICYCLES
AND OTHER VELOCIPEDES" to be as follows:-
When a velocipede with three or more wheels runs in a curved path the wheel or
wheels on the outer side of the curve revolve more rapidly than that or those on
the inner side, and to allow of this it is usual either to leave one wheel free of the
driving gear or to employ a balance or compensating device which will allow the
wheels to revolve at different speeds without being disconnected from the driving
power.
Now in an improved balance or compensating motion for tricycles and other
velocipedes according to my Invention, a gear wheel (it may be a spur, chain,
frictional or other form of gear wheel) runs loose on the driving axle, and is
situated between two spur wheels, one of which is connected to one of the driving
wheels of the vehicle, and the other to the second driving wheel. When one of the
driving wheels is fixed to the axle the corresponding spur wheel is then also fixed
to the axle, which in such case forms the connection between them. The said gear
wheel carries a spindle mounted in a bearing between its centre and its periphery
and parallel to the axle, and on this spindle there are fixed two spur wheels, one
at each side of the said gear wheel. These two wheels for the sake of clearness
I will call planet wheels. The first of these planet wheels engages with one of the
aforesaid spur wheels connected (say) to the left hand driving wheel, and the second
planet wheel is geared to the spur wheel connected to the right hand driving
wheel, but in this case an intermediate wheel, carried on a stud or spindle in the
gear wheel makes the connection between the two.
In some cases it is convenient to connect the second planet wheel to the
corresponding spur wheel by a chain, omitting in such arrangement the intermediate
wheel, and making the teeth of suitable form. In any case the planet wheel is of
the same size as the spur wheel with which it is in connection.
Dated this First day of January 1884.
W. LLOYD WISE,
Agent for the Applicant.

page_text: I, JOHN SHAW, of Priory Street, Coventry, in the County of Warwick, Bicycle
Hollow Fork Manufacturer, do hereby declare the nature of my Invention for
"A NEW OR IMPROVED BALANCE OR COMPENSATING DEVICE FOR TRICYCLES AND
OTHER VELOCIPEDES" and in what manner the same is to be performed to be
particularly described and ascertained in and by the following statement:-
When a velocipede with three or more wheels runs in a curved path the wheel or
wheels on the outer side of the curve revolve more rapidly than that or those on
the inner side, and to allow of this it is usual either to leave one wheel free of the
driving gear or to employ a balance or compensating device which will allow the
wheels to revolve at different speeds without being disconnected from the driving
power.
Now in an improved balance or compensating motion for tricycles and other
velocipedes according to my Invention, a gear wheel (it may be a spur, chain,
frictional or other form of gear wheel) runs loose on the driving axle, and is
situated between two spur wheels; one of which is connected to one of the driving
wheels of the vehicle, and the other to the second driving wheel. When one of the
driving wheels is fixed to the axle the corresponding spur wheel is then also fixed
to the axle which in such case forms the connection between them.
The said gear
wheel carries a spindle mounted in a bearing between its centre and its periphery
and parallel to the axle, and on this spindle there are fixed two spur wheels, one at
each side of the said gear wheel. These two wheels for the sake of clearness
I will call planet wheels. The first of these planet wheels engages with one of tho
aforesaid spur wheels connected (say) to the left hand driving wheel, and the
second planet wheel geared to the spur wheel connected to the right hand driving
wheel, but in this case an intermediate wheel, carried on a stud or spindle in the
gear wheel makes the connection between the two.
In some cases it is convenient to connect the second planet wheel to the
corresponding spur wheel by a chain, omitting in such arrangement the intermediate
wheel, and making the teeth of suitable form. In any case the planet wheel is of
the same size as the spur wheel with which it is in connection.
Referring to the accompanying Sheet of Drawings Fig. 1 is an elevation of the
main axle of a tricycle fitted with my improved balance motion the bosses only of
the driving wheels being shown without the spokes; Fig. 2 is an elevation of one
side of the gear wheel with the balance motion and Fig. 3 an elevation of the other.
side of the same. a is the gear wheel driven from the crank-shaft, b a spur wheel
fixed to the driving wheel c, d a spur wheel fixed to the axle e to which the driving
wheel is also secured-y is a spindle running loose in a bearing in the wheel a,
and carrying two planet wheels h and i. The planet wheel h gears with the spur
wheel b, and the planet wheel is connected to the spur wheel d through the
intermediate wheel k (Fig. 3) running loose on a stud. When the vehicle follows
a straight path there is no relative motion between the various spur wheels, but
when it passes round a curve the lost motion of one wheel is transmitted to the
other and the gearing revolves.
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
In a tricycle or other velocipede a balance or compensating motion comprising a
gear wheel carrying two planet wheels one of which engages directly with a gear

page_text: wheel connected to one driving wheel, and the other of which engages through an
intermediate wheel or chain with a gear wheel connected to the other driving wheel
substantially as described.
Dth L
Candrash 1001
JOHN SHAW,
W. Lloyd Wise,
Per F. J. Brougham,
Applicant's Agent.