MENTS IN SAFETY BICYCLES
Year: 1884

page_text: PROVISIONAL SPECIFICATION.
HERBERT JAMES PAUSEY Bicycle & Tricycle Manufacturer Pioneer Bicycle
& Tricycle Works, Clapham Park Road Clapham Surrey London S.W. and
CHARLES THOMAS CROWDEN Engineer 3 Wakehurst Road Wandsworth Common
Surrey London S.W. do hereby declare the nature of said invention for IMPROVE-
MENTS IN SAFETY BICYCLES to be as follows:-
Of two small wheels running in forks on two fixed pins, the driving wheel being
the larger of the two, the rider is carried on a saddle just in front of the driving
wheel on a pillar from the backbone connecting the two wheels, the steering
wheel is carried in a fork raking backwards some six inches, attached to which
& extending upwards is a tube surmounted by an handle-bar (with the handles
slightly set back towards the rider) for steering & balancing, this is pivotted to a
neck on the backbone. The machine is driven by a pair of cranks attached to
a spindle & chain wheel carried in a fork extending downwards from the backbone,
a chain wheel is fixed to the side of driving wheel hub, the whole are driven by an
endless pitch chain running over the said chain wheels. The driving wheel can be
geared up or down by varing the size of the chain wheels, it may also be fitted
with speed gear; so that the rider may alter the gear from power to speed or
speed to power whilst travelling. This bicycle by adjusting the height of the
saddle & handles, can be ridden by any size rider. By fixing another pair of
cranks, chain wheels, saddle & fixed handles, another rider can be carried behind
driving the same wheels. The machine can be ridden with driving wheel in front,
by simply turning the saddle round, the steering & balancing wheel being then
behind.
HERBERT JAMES PAUSEY.
CHARLES THOMAS CROWDEN.

page_text: HERBERT JAMES PAUSEY Bicycle and Tricycle Manufacturer Clapham Park Road,
Surrey, CHARLES THOMAS CROWDEN Engineer 3 Wakehurst Road Wandsworth
Common Surrey do hereby declare the nature of an invention for IMPROVEMENTS
IN SAFETY BICYCLE and in what manner the same is to be performed, to bo
particularly described and ascertained in and by the following statement :-
Fig 1. & 4. Shews a side view of the machine which consists of two small wheels
running in forks on two fixed pins, the driving wheel A being the larger of the
two, the rider is carried on a saddle B² just in front of the driving wheel on a
pillar C. extending from the backbone D¹. connecting the two wheels E and A, the
steering wheel is carried in the fork F¹ attached to which and extending upwards
is a tube G, having a telescopic tube for adjustment surmounted by a handle
bar for steering and balancing this is pivoted by a neck I. on the back bone D¹
which being behind the centre of the front wheel and on an angle makes the
machine partially steer with both wheels.
.
The machine is driven by a pair of cranks J₁ attached to a spindle and chain
wheel carriod in bearings on a tube L extending downwards from the backbone Di
a chain wheel M is fixed on the side of the hub of the driving wheel the whole
are driven by an endless pitch chain N running over the said chain wheels K
and M.
The driving wheel can be geared up or down by varying the size of the chain
wheel K.
This bicycle can be fitted with Bown's Hill climbing gear or any other Hill gear
in the market, so that the rider may alter the gear from speed to power or power
to speed whilst the machine is travelling.
This bicycle can be adjusted to suit the height of any rider by adjusting the
saddle B2, and the handles H¹; this is done by altering the clips O and P. grasping
the telescopic tubes P and C.
Fig 2 shews a side view and plan of a spring arrangement for assisting the
steering and keeping the machine in a straight line when running without the
handles consisting of a flat steel spring Q fixed to the steering tube G, grasping
the neck I, we can obtain the same object by the use of spiral or rubber springs.
Fig 4. Shews a side view with chain driving gear of an arrangement for
converting the machine into a "Tandem"
consisting of a fork F hinged on the
driving wheel pin P' carrying the tube L' surmounted by a handle bar H' on
which is hinged a backbone D' on a neck I carrying a saddle B¹ for the back
rider and trailing wheel F this addition drives the same driving wheel by the
cranks J' and chain gearing. It can be readily taken on and off by slackening
the nuts on the driving wheel pin, it is not rigidly fixed to the pin P¹ but allows
of vertical motion so that the trailing wheel F would pass over obstacles without
lifting the driving wheel from the ground. The chain wheel K' being on a centre
radial with the driving wheel A. allows of a vertical motion to the chain gear.
Fig 3 is a diagram plan shewing position of the wheels whilst turning a corner
A is the front steering wheel, B the driving wheel, C is the centre of the neck on
which the steering wheel A is hinged D is the point of contact with the ground of
the steering wheel A. E is the point of contact with the ground of the driving
wheel B which being steered and balanced by means of the handle bar throws the
point C out of the centre carrying the backbone and driving wheel B out of line
on the point of contact with the ground E thus making the steering and balancing
of the small wheels quite easy.

page_text: We wish it to be distinctly understood that we do not bind ourselves strictly to
detail as described and shewn in drawing of our specification.
Having now particularly described and ascertained the nature of our Invention
and in what manner the same is to be performed we declare that what we
claim is
1. Running the driving wheel on a fixed pin thus tying the forks together at
their extremities so as to ensure easy running of the same.
2. Making an adjustable single track safety bicycle for any size rider by means
of an adjustable seat or saddle B and handle bar H¹ by means of the telescopic
tubes O, and C, and P, and Q.
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3. The spring arrangement on the steering neck as described and shewn on
Fig 2. for assisting the steering and keeping the machine in a straight line when
running without the handles.
4. Putting the centre of the neck C. (diagram Fig 3) of the front steering and
balancing wheel A behind the vertical centro D so that when the steering wheel is
turned on the point of contact D, the backbone and driving wheel B is thrown
over with neck C on the point of contact E, in combination with bicycles running
with the loose wheel first,
5. The addition for converting the machine into a "Tandem" by means of forks
hinged on the driving wheel pin carrying the frame L' with a fixed adjustable
handle bar, and driving gear and cranks also the hinged backbone carrying the
saddle and trailing wheel as shewn on Fig 4 and described.
6. A combination of the said Improvements in Safety Bicycles, by which the
rider is carried almost between the two wheels by the extension of tubes upwards
from the backbone for carrying the saddle and downwards for carrying the driving
gear and cranks.
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Dated this 15th day.
1001