Improvements in Tricycles and other Vehicles Driven by the Feet or by Power.
Year: 1897

page_text: Date of Application, 2nd Apr., 1897
Complete Specification Left, 31st Dec., 1897-Accepted, 2nd Apr.,
1898
PROVISIONAL SPECIFICATION.
Improvements in Tricycles and other Vehicles Driven by the Feet
or by Power.
We, RICHARD HUGHES, of 44, Agincourt Road, Hampstead, Engineer, and
LOUIS IGNATIUS PERRY, of 100, Kentish Town Road, Cycle Manufacturer, both in
the County of Middlesex, do hereby declare the nature of this invention to be as
follows:-
The invention has for its object an improved construction and arrangement of
parts in connection with the crank shaft of vehicles driven by the feet or by power,
whereby, whilst both wheels are equally driven when running straight forward,
they are provided with compensating means to enable the outer wheel to over-run
its clutch while the inner wheel alone drives when the machine is travelling round a
curve.
Heretofore a sleeve, having a ratchet wheel formed thereon, has been placed on
each end of the crank shaft within the hub of each driving wheel, and such ratchet
wheel has had three pawls pressed into contact therewith by springs these parts
have been enclosed by the break drum fixed to the wheel hub, and the ratchet
wheel sleeve has been provided with clutch teeth which acted through another
clutch sleeve in combination with the bearing sleeve fixed on the crank shaft. The
aid construction is complicated, expensive and liable to get out of order.
According to our invention we arrange simple clutch mechanism altogether
external of the wheel hubs. For this purpose we mount on each end of the crank
shaft, two sleeves, the meeting faces of which are formed with inclined clutch teeth
fitting together, so that the one shall be capable of driving the other whilst each
wheel can over-run its driving clutch when on the outer part of a curve around
which the vehicle is running. One of each pair of these clutch sleeves is fixed to
the hub of the driving wheel, whilst the other is connected with the crank shaft
by a key and key-way, upon which it can slide into and out of gear with its com-
panion clutch sleeve; a spring is interposed between each bearing sleeve and the
adjoining sliding clutch sleeve to keep the latter normally in contact with the
clutch sleeve fixed to the wheel hub.
Doted thia 2nd day of Invil 1807
HARRIS & MILLS,
23, Southampton Buildings, London, W.C., Agents.

page_text: Improvements in Tricycles and other Vehicles Driven by the Feet
or by Power.
We, RICHARD HUGHES, of 44, Agincourt Road, Hampstead, Engineer, and
LOUIS IGNATIUS PERRY, of 100, Kentish Town Road, Cycle Manufacturer, both in
the County of Middlesex, do hereby declare the nature of this invention, and in
what manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement:-
The invention has for its object an improved construction and arrangement of
parts in connection with the crank or driving shaft of vehicles driven by the feet
or by power, whereby, whilst both wheels are equally driven when running straight
forward, they are provided with compensating means to enable the outer wheel to
over-run its clutch while the inner wheel alone drives, when the machine is
travelling round a curve.
Heretofore a sleeve having a ratchet wheel formed thereon, has been placed on
each end of the crank or driving shaft within the hub of each driving wheel, and
such ratchet wheel has had three pawls pressed into contact therewith by springs;
these parts have been enclosed by the break drum fixed to the wheel hub, and the
ratchet wheel sleeve has been provided with clutch teeth which acted through
another clutch sleeve in combination with the bearing sleeve fixed on the crank or
driving shaft. The said construction is complicated, expensive and liable to get
out of order.
According to our invention we arrange simple clutch mechanism altogether
exterual of the wheel hubs.
Our invention is illustrated in the accompanying drawings, in which :-
Fig. 1 is a plan of a crank shaft fitted with our improvements, and
Fig. 2 is a oross section drawn on the line 2-2 of Fig. 1.
According to our invention we mount on each end of the crank or driving shaft a, 2
two sleeves b, c, the meeting faces of which are formed with inclined clutch teeth
fitting together so that the one shall be capable of driving the other, whilst each.
wheel can over-run its driving clutch when on the outer part of a curve around
which the vehicle is running.
One of each pair of these clutch sleeves (the sleeve c) is fixed to the hub of the 3
driving wheel (not shown), whilst the other, b, is connected with the crank or
driving shaft a by a key a' and key way b¹, along which it can slide into and out
of gear with its companion clutch sleeve c; a spring d is interposed between each
bearing sleeve and the adjoining sliding clutch sleeve 6 to keep the latter
normally in contact with the clutch sleeve c fixed to the wheel hub. earo the pedal 3
bearing cones.
Having now particularly described and ascertained the nature of our said in-
vention, and in what manner the same is to be performed, we declare that what we
claim is
1. The herein-described improvements in connection with the crank or driving
shaft of tricycles and other vehicles driven by the feet or by power.
2. In tricycles and other vehicles driven by the feet or by power, the combination
of a crank or driving-shaft a, key ways b', keys a', sliding clutches b, springs d,
and clutches e fixed to the hubs of the driving wheels, substantially as herein shown
and described and for the purpose stated.
3. In tricycles and other vehicles driven by the feet or by power having the
driving wheels mounted upon the ends of the crank shaft, the combination of clutch
4

page_text: sleeves fixed rigidly to the hubs of the driving wheels, and clutch sleeves mounted
upon the crank or driving shaft with capability of sliding thereon but controlled
to rotate therewith and retained in contact with the clutch sleeves upon the wheels
by means of springs, substantially as herein shown and described.
4. The novel combination and arrangement of parts constituting our improve-
ments in connection with the crank or driving shaft of tricycles and other vehicles
driven by the feet or by power, substantially as herein shown and described.
Dated this 31st day of December 1897.
HARRIS & MILLS,
23, Southampton Buildings, London, W.C., Agents.