Improvements in Bevel Gearing, more especially adapted for Use with Velocipedes and Motor-cars.
Year: 1897

page_text: Date of Application, 3rd Feb., 1897-Accepted, 10th Apr., 1897
CBD ULU DI BULLICATION.
[Communicated from abroad by Charles THRROT, of 19 Rue Cambon, Paris, in
the French Republic, Engineer.]
Improvements in Bevel Gearing, more especially adapted for Use
with Velocipedes and Motor-cars.
I, WILLIAM EDWIN HEYя of 70 Market Street Manchester in the County of
Lancaster, Chartered Patent Agent, 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 relatos to goaring for the transmission of rotary motion, especially
applicable for use in velocipedes and mechanically propelled vehicles, and which may
also be used in connection with other applications.
1 will describe these improvements as communicated to no by my foreign corre-
spondent, with referonce to the accompanying drawing which represents thein as
applied to a bicyclo.
The characteristic fenture of this invention is the construction of the bovel wheels
or of the bevel pinions, in which the gearing is effected by the engagement of the
teeth of the one, with friction rollers substituted for teeth in the other, the friction
rollers being arranged as horeinafter described.
As represented by the drawing, the crank axis carries the bevel wheel A, in
substitution for the ordinary teeth of which are arranged small friction rollers B, free
to turn upon the fixed axes b. The axes of these rollers are not radial parallel with
the plane of the wheel, but in the surface of the cone to which the wheels are
constructed as inlicatod. The rollers themselves are cylindrical with one or with
both ends rounded so as to provent friction between them and the walls of the
recess or cavity within which they are mounted. The precise form however of the
rollers may be varied.
The wheel A gears with a pinion C, which has the ordinary or any suitable
special form of smooth fixed tooth C. This pinion is screwed or otherwise fixed upon
the end of a ferrule or sleeve E, which is mounted and capable of rotation, with
or without ball bearings, upon the rod or tubo E which my form part of the
framing of the machine. The opposite on of this ferrule or sleeve bas similarly
fixed upon it the wheel F, furnished as A with friction rollers in substitution for
teeth, near to the hub of the driving or back wheel, upon which is fixed the
pinion G, having fixed teeth G¹ similar to those of the pinion C gearing with tho
whool G.
His one of the bicycle crauk arms, and I indicates the tyre.
It will be apparent that instead of having the friction roller teeth in the wheels
as shown, they may be in the pinions, in which case the wheels would have fixed
smooth teeth.
Having now particularly described and ascertained the nature of my suid
invention and in what manner the same is to be performed, as communicated
to me by my foreign correspondent, I declare that what I claim is :-
Bevel gearing for velocipedes, applicablo also for other purposes, constructal and
arranged substantially as hereinbefore described and as illustrated by the accompanying
drawing.
Dated this Second day of February A.D. 1897.