Particularly Suitable to Velocipedes.
Year: 1885

page_text: Particularly Suitable to Velocipedes.
I JOSIAH JACKSON of 59 Lower Ford Street Coventry in the county of Warwick
Mechanician do hereby declare the nature of said invention for IMPROVEMENTS
IN THE CONSTRUCTION AND DRIVING OF VEHICLES PARTICULARLY SUITABLE TO
VELOCIPEDES to be as follows:-
This invention consists chiefly in an improved manner of transmitting motive
power to the driven wheel or wheels of certain vehicles propelled by manual or
other power and is particularly suitable for velocipedes of the Tricycle class, and
also particularly in the latter class of vehicles in an arrangement of construction
for bringing the bearing of load more forward from point where driven wheel or
wheels touches ground than has hitherto been done by which better propulsion is
obtained.
According to this invention upon the side of driven wheel I form or attach a
projecting rim or flange (hereafter called rim) of nearly the same diameter as tyre
the inner periphery being suitably formed for a roller or wheel to bear upon and
to have suitable bite frictional or otherwise. This roller is carried on a short axle
in a fork formed on an arm projecting from frame, and placed to bear on rim
beyond the point of contact of wheel with ground.
The saddle is attached so that weight of rider will press roller on inside of rim
thus bringing weight of load beyond the point of contact of driven wheel with
ground.
The roller is rotated from a double throw crank by suitable arrangement of
gearing preferably cog wheels. The rotation of the roller imparts motive power to
the driven wheel by bearing upon inside of rim as before described. The frame of
the machine or vehicle, is suitably formed to facilitate the above arrangement of
parts.
It will be readily understood that the above manner of driving the driven wheel
may be employed for single or double driving wheels: in the latter case there

page_text: would of necessity be two rollers but both could be driven from the same crank,
but would require two sets of similar gearing as I prefer the two driven wheels to
be independant of each other.
In applying this invention to existing velocipedes with two driven wheels I use
an additional cross shaft on which revolve a cog wheel gearing with crank, having
suitable frame attached carrying pinions, these transmit motion to bevel wheels
one carried on sleeve loose on cross shaft, and another keyed to shaft; on this
sleeve is a chain or cog wheel which transmits motion to one roller, and on the
other end of shaft is another cog or chain wheel for transmitting motion to the
other roller.

page_text: Improvements in the Construction and Driving of Vehicles,
Particularly Suitable to Velocipedes.
I JOSIAH JACKSON of 59 Lower Ford Street Coventry in the county of Warwick,
Mechanician do hereby declare the nature of this invention and in what manner
the same is to be performed to be particularly described and ascertained in and by
the following statement :-
This invention consists chiefly in an improved manner of transmitting motive
power to the driven wheel or wheels of certain vebicles propelled by manual or
other power, and also refers to an arrangement of construction for bringing the
weight of the load forward from line where driven wheel or wheels touches ground
which facilitates propulsion.
To enable my invention to be properly understood I will proceed to describe the
same by aid of the accompanying drawings.
Figure 1 represents a side elevation of a tricycle constructed in one way or altered
according to this invention.
Figure 2 plan view of same.
Figure 3, sectional detail view of one kind of driving arrangement.
Figure side view of a tricycle constructed according to this invention with
different gearing to that represented in preceeding figures.
Figure plan view of figure 4.
Figure 6 side view elevation of a bicycle constructed to be driven according to
this invention.
Figure 7 front sectional elevation of figure 6.
Referring to figures 1. 2. and 3. According to this invention upon the side
of driven wheel or wheels A, and near tyre I form or attach a projecting rim or
flange B, (hereafter called "rim") of nearly the same diameter as tyre the inner
periphery of said rim being suitably formed for a roller C, to bear upon which
it is arranged to do at a point in advance where wheel touches ground, said
roller having frictional or other bite upon rim. This roller C, is carried by a
short axle D, in a fork E, formed or attached to a short arm E¹, keyed to a
cross bar F, having a middle right angle bar F', pivotted at E³ to a cross
bar Es, connected to main frame B¹; the bar F, has connected to it, an upright
bar or arm F, the upper part of which carries saddle so that the weight of the
rider presses the roller C on to rim B giving frictional bite, and as this pressure
comes at a point beyond line where wheel touches ground it facilitates propulsion,
To give the tricycle the necessary travelling speed suitable gearing is employed to
revolve the roller C. The gearing represented in the drawings is that which may
advantageously be used and having the advantage of driving the driven wheels
independant of each other. G, gear wheel keyed to crank axle B', gearing with a
pinion G¹, on axle of roller C In the conversion of existing machines and to admit
of the driven wheels running independant of each other I employ the arrangement
represented at Figure 3. A. A. lower part of driven wheels constructed according
to this invention, running loose and independant of each other upon a cross axle
fixed to frame B¹. The said frame carries brackets B³ for journal ends of crank

page_text: axle B¹. On this axle is a gear wheel H gearing with another gear wheel H',
running loose on a sleeve I: On the side of wheel H is attached a frame J, carrying
mitre pinions K, these gear with mitre wheel L attached to or forming part of
sleeve I, and to mitre wheel M, keyed to cross shaft N; the other end of this shaft
has keyed to it a gear wheel G², gearing with pinion G³ of roller C. The sleeve I
bas keyed on outside end a second gear wheel Ĝ of same size as G³ for pinion G¹ of
roller C on this side of machine. The sleeve I runs loose on shaft N, and through
bracket B, and is kept true by aid of shaft N and retained by bosses of wheels G
and H. The wheels H and H¹ may be spur wheels, and smaller than is represented,
and be connected by chain in place of gearing.
Referring to figures 4 and 5-these represent a tricycle constructed according to
this invention with a simpler form of gearing than that before described for trans-
mitting motion to the roller C: a is gear wheel with inner gearing, keyed to crank
axle b, this wheel gears with a pinion & on axle of roller C, said roller being pressed
down on rim B to give frictional bite by weight of rider as has been explained.
Referring to figures 6 and 7:—which represent the principle of this invention as
applied to a bicycle. The main fork A is divided at bottom ends into two
forks C¹ D. to carry axle of gear wheel E, and treadle axle, said gear wheel gearing
by inner gearing with pinion F of roller C as has been described. The main driven
wheel is connected to main fork A, by pivotted arms or links G, to allow weight
of rider to come on roller C to press same down on to rim B The wheel tyre is
supported from rim B, by a number of brackets O, webs, or other suitable supports,
and the rim may be furthered strengthened by waved or curved supports horizontally
placed under same such for example as is represented at P, figure 3. The wire
spokes are arranged to cross at a point which enables them to clear rollers C, as is
shown at liues Y. Z.
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
1. The arrangement of transmitting motive power to the driven wheel or wheels
of a vehicle, substantially as hereinbefore described and represented in the accom-
panying drawings.
2. In transmitting motive power to driven wheel or wheels of vehicles, arranging
weight of load to bear on the inside of a rim attached to said wheel or
wheels, preferably near tyre, and beyond line where driven wheel or wheels touches
ground, substantially as hereinbefore described and represented in the accompanying
⚫ drawings.
3. In transmitting motive power to the driven wheel of a bicycle attaching the
driven wheel to the frame or fork by links to enable weight of rider to bear on a
rim near tyre of wheel preferably beyond line where wheel touches ground
substantially as described and represented in the accompanying drawings.
1000