Improvements in Driving Motions for Bicycles, Tricycles, and like Machines.
Year: 1894

page_text: Date of Application, 1st June, 1894
Complete Specification Left, 16th Jan., 1895-Accepted, 1st June, 1895
PROVISIONAL SPECIFICATION.
Improvements in Driving Motions for Bicycles, Tricycles, and like
Machines.
I, HENRY HANBY, of 1, Ringrose Street, Domestic Street, Holbeck, in the
City of Leeds, and County of York, Mineral Water Manufacturer, do hereby
declare the nature of this invention to be as follows:-
This invention relates to improvements in driving motions for bicycles, tricycles,
and like machines, and its object is to increase the speed of such machines without
diminishing the power.
According to this invention on the shaft to which the pedals are fixed I mount
the chain wheel loosely thereon instead of fixing it upon the said shaft. To the
chain wheel is fixed a spur wheel so that the chain wheel and spur wheel will
revolve together on the same shaft. At a suitable point on one of the treadles
I mount and fix rigidly a second spur wheel which is arranged to gear into the first
mentioned spur wheel. And I further provide say two links, say one on each side
of the two spur wheels and connected to their respective centres or fixings and
arranged to revolve round the axis of the shaft to which the pedals are fixed. By
preference the two spur wheels may be made the same diameter, and by fixing one
of the spur wheels to the pedal, for each of its revolutions the other spur wheel may
be arranged to make two revolutions to one of the pedal.
The above arrangement may be readily adapted to ordinary machines.
Thated thia Thints first day of May 1894
HENRY HANBY,
By W. Fairburn-Hart,
Agent.
Improvements in Driving Motions for Bicycles, Tricycles, and like
Machines.
1, HENRY HANBY, of 1 Ringrose Street, Domestic Street, Holbeck, in the
City of Leeds, and County of York, Mineral Water Manufacturer, 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 relates to improvements in driving motions for bicycles, tricycles,
and like machines, and its object is to increase the speed of such machines without
diminishing the power.
Fig. 1 is a side elevation of a bicycle with my invention applied.
Figs. 2 and 3 are respectively side and end elevations of the arrangement of
driving gear shown at Fig. 1.
Fig. 3ª a detail.
Fig. 4 is an elevation of a bicycle with improved driving gear actuated by pedal
levers.
Figs. 5 and 6 are respectively side and end elevations of driving gear shown at
Fig. 4.

page_text: Figs. 7 and 8 are respectively a side and end elevation of frictional arrangement
of driving gear.
In the drawings I have shown the invention applied to a bicycle but I distinctly
wish it to be understood it may be employed for tricycles and like machines.
Like parts in. all the views are marked with similar letters of reference.
A is the framework of the machine, B B' the wheels, C the steering handle,
D the saddle, E E¹ the mud guards, and F the pedals all of which may be of the
usual construction and fitted together in the ordinary manner.
On the shaft G (Fig. 1) to which the pedals F are fixed, I mount and fix rigidly
the chain wheel H. To the chain wheel H is fixed a spur wheel I so that the
chain wheel and spur wheel will revolve together on the same shaft.
At a suitable point on one of the treadles, I mount and fix rigidly, so as not to
revolve independently of the pedal, a second spur wheel J which is arranged to
gear into the first mentioned spur wheel I. And I further provide say two
links KK, say one on each side of the two spur wheels. These links are employed
for retaining the spur wheels I, J at their respective centres G' F or distances
apart and the spur wheels J and the links K are thereby enabled to revolve round
the axis of the shaft G to which the pedals F are fixed.
By preference the two spur wheels I, J, may be made the same (or varying)
diameters, and by fixing one of the spur wheels to the pedal, for each of its
revolutions the other spur wheel may be arranged to make two revolutions to one
of the pedal.
In the arrangement shown at Fig. 1 it will be readily seen that the pedals F and
shaft G are arranged between the wheels B and B and that motion is transmitted
from the chain wheel H to the chain wheel B2 by means of the chain H¹.
But when it is desired to have the driving gear mounted upon the axle B* of the
rear wheel B' and thereby to dispense with the chain and the chain wheels,
I mount two spur wheels I (one on each side of the wheel B¹) on the axle B* and
I arrange two spur wheels J to gear respectively into the aforesaid spur wheels I.
In this arrangement the spur wheels I and J may be of the same or varying
diameters and in the drawings at Figs. 4 to 6 they are shown to be of different
sizes: The spur wheels Jare rigidly mounted so as not to revolve thereon, on
studs M. fixed in the ends of the connecting links N which are respectively attached
to the rear ends Lx of the levers L L' to which the pedals F are fixed.
In this arrangement the spur wheels I and J are enclosed in the casing K which
takes the place of the links marked with the same reference letter at Fig. 1; the
casing K serves the double purpose of a guard for the wheels as well as retaining
them at their respective centres and it is arranged to be suspended from and
revolve round the axle B*. The levers L L are adjustably pivoted to uprights O
fixed to the framework A as shown at Fig. 4. On the pedal levers L L' being
depressed, and by suspending the spur wheels J.by the links N from the ends Lx of
the said levers, the wheels J will be caused to revolve round the wheels I which
are fixed to the axle B* and thereby communicate motion to the same.
When it is desired to employ a frictional driving arrangement then a spur
wheel I may be mounted on the pedal shaft G or axle B* and instead of a spur
wheel J employ a pulley J' and arm its periphery with an india rubber or other
flexible or elastic band or ring J2 as shown at Figs. 7 and 8. The india rubber
arming J is made to bed itself into the teeth of the wheel I and by its frictional
contact therewith will communicate motion to the said wheel, the wheel I and
armed pulley J¹ may be connected together and operated as shown. at Figs. 1
and 4..
The above arrangement may be readily adapted to ordinary machines..
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed; I declare that what I
claim, is::.
1. The improvements in driving motions for bicycles, tricycles and like machines
1

page_text: substantially as herein described and illustrated consisting essentially of mounting
and fixing rigidly the chain wheel upon the pedal shaft and fixing so as to revolve
with the said wheel a spur (or other) wheel receiving motion from a second spur
(or other) wheel rigidly fixed to the pedal mechanism and capable of revolving
round the first named spur wheel when the said pedal mechanism is operated.
2. In driving motions for bicycles, tricycles, and like machines the combination
of the gear wheels I and J with the rear wheel and pedal mechanism of the
machine, one of which gear wheels is fixed to the said pedal mechanism and capable
of revolving round the axis of the other gear wheel whenever the former is operated
by the said pedal mechanism substantially as and for the purposes herein set forth.
3. In driving motions for bicycles, tricycles and like machines substantially as
herein described and illustrated the combination with the pedal mechanism of chain
wheel H mounted and fixed rigidly on the pedal shaft and having a spur wheel I
fixed to it, the spur wheel J rigidly fixed to the pedal and retained in gear with
the first named spur wheel by means of links K for revolving round the spur
wheel I and imparting motion thereto whenever the pedals are operated
substantially as shown and illustrated at Figs. 1 to 3 of the accompanying
drawings.
Dated this Fifteenth day of January 1895.