A New or Improved Mode of Increasing or Decreasing the Speed of Velocipedes, Cycles, Horseless Carriages, and the like.
Year: 1896

page_text: Date of Application, 23rd June, 1896
Complete Specification Left, 22nd Mar., 1897-Accepted, 24th Apr., 1897
PROVISIONAL SPECIFICATION.
A New or Improved Mode of Increasing or Decreasing the Speed of
Velocipedes, Cycles, Horseless Carriages, and the like.
J, JOHN SMITH WINFIELD of Number Thirty-one Hutton Street, Nechells
Birminghamn in the County of Warwick England Machinist do hereby declare
the nature of this invention to be as follows:-
My invention has for its object a new and better means of regulating or-con-
trolling the speed of the above machines in such a manner as to enable the rider
or driver to obtain speed or power by a simple movement of parts without having
to pedal or drive the motor faster or slower, in other words the driver or rider may
alter his gear in such a manner as to gain power for hill climbing &c. or speed
when desirable and this without stopping or dismounting. And another object
I have in view is to dispense with the chain drive now so common and troublesome
upon this class of machines.
This I do in the following manner, upon the pedal shaft of foot machines or
main shaft of motors, I fix a bevel wheel in such a manner as to engage with
another that is fixed upon a shaft at about right angles thereto, and these wheels
are of such a size as to speed the machine up to a medium or desirable rate of
travel when the rider or driver is working easy (this shaft may be enclosed in the
tube frame of machine if desirable) at the other end of this shaft is a small spur
wheel so fixed that it may be rotated with the shaft and yet be freely moved along
it in the direction of its length by means that connect it to a handle in any
convenient position. Now this spur or toothed wheel can thus be made to engage
either one of a series of annular rings of teeth that are fixed to a disc like side of
the hub of the wheel that is the main driver or propeller of the machine thus is
the power transmitted from the pedal shaft to the wheel that has to be driven and
it follows that the relation of the number of teeth upon the wheel at the end of
the shaft and that of those upon the ring it is made to engage in will decide
whether the machine will gain speed or power.
A slight modification of the above will give all the advantages of differential
speeds while retaining or dispensing with the chain connection.
This specification embodies that the shaft principle may be used whether to
chain gear or as an ordinary fixed gear, as may be desired:
Dated this 22nd day of June 1896.
JOHN SMITH WINFIELD.
COMPLETE SPECIFICATION.
A New or Improved Mode of Increasing or Decreasing the Speed of
Velocipedes, Cycles, Horseless Carriages, and the like.
1, JOHN SMITH WINFIELD of 31 Hutton Street, Nechells, Birmingham, in
the County of Warwick, Fitter and Machinist, 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 as hereinafter described to an improved driving gear for
Price Sd1

page_text: velocipedes and other road vehicles and has for its object to provide a simple
arrangement for driving such machines without the aid of the usual chain and
sprocket wheels, my improved gearing being so arranged as to vary the speed of
the machine as desired.
My invention consists essentially in providing the back wheel of the machine
with a wheel having epicycloidal teeth on its face which gear with a pinion having
teeth on its periphery. A tubular spindle of the said pinion rung along the side
of the machine is provided with a bevil wheel which gears with a like wheel on the
crank or driving axle of the bottom bracket. The pinion has a sliding motion on
the spindle and is capable of gearing with several sets of teeth on the face of the
wheel, thus varying the speed of the machine.
In order that my invention may be more clearly understood I will describe it by
reference to the accompanying drawings the same letters of reference indicating
similar parts throughout.
Figure 1 represents in side elevation and Figure 2 in plan my improvel gear as
applied to a velocipede or what is known as a safety cycle.
A is a wheel having epicycloidal teeth B, C, D, on its face an arranged to gear
with the pinion F shown in front elevation at Figure 3 the pitch of each circle
being the same and equal to the pitch of teeth on the periphery of the pinion.
The pinion F having a path of contact with each pitch circle B, C, D, by means
of the slot E of the tubular spindle I and the key H.
The tubular spindle I being attached to the frame of the machine by means of
the bearings J, J, is provided with an inner sliding rod K which is attached to a
key on the boss of the pinion F and gives a sliding movement thereto which is
effected by connecting the end of the said spindle to some convenient part of the
machine and operating the same either by foot or hand, rotary motion is given to
the spindle I by means of the bevel wheels N and the cranks M. I may in some
cases attach the wheel A and the pinion F to the ordinary driving spindle and the
bevel wheels N to the spindle of the back wheel. Or I may attach a wheel A or
its equivalent to the back wheel and driving spindle.
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. In the improved gear for velocipedes and other road vehicles substantially as
described and illustrated and for the purpose set forth.
2. In a gear for velocipedes and other road vehicles consisting of the wheel A
provided with teeth arranged in several pitch circles to gear with the pinion F for
varying the speed substantially as described.
3. In a gear for velocipedes and other road vehicles consisting of the wheel A,
the pinion F arranged to gear in the several pitch circles by means of the sliding
rod K substantially as described and for the purpose set forth.
Dated this 19th day of March 1897.
WILLIAM HENRY BARACLOUGH,
36 Temple Street, Birmingham, Agent for the Applicant.