Certain Improvements in Driving Gear for Safety Bicycles and other Velocipedes and Motor Carriages.
Year: 1896

page_text: PROVISIONAL SPECIFICATION.
Certain Improvements in Driving Gear for Safety Bicycles and other
Velocipedes and Motor Carriages.
I, SAM THOMAS RICHARDSON, of 3A, Rea Street, Birmingham, Cycle Manu-
facturer, do hereby declare the nature of this Invention to be as follows:-
This Invention has reference to that kind of driving gear for safety bicycles
and other velocipedes and motor carriages in which bevel or other toothed wheels
are used, and my Invention is particularly applicable to toothed wheel driving
mechanism arranged as described in the Specification of Richard Price's Patent
No. 16729 of A.1. 1890 where the pedal crank axle is provided with a bevel wheel
gearing with a pinion on a longitudinal shaft carrying at the other end a
second pinion gearing with a bevel wheel on the driving wheel hub or
axle. My Invention consists of the herein described improvements in the con-
struction of the teeth or acting surfaces of the bevel or other toothed wheels so
as to facilitate their manufacture and reduce friction.
According to one arrangement of carrying out this Invention the bevel or other
toothed wheel and the pinion with which it gears are each made with rounded
metal studs and holes alternately instead of the usual teeth, the said studs of
the wheel gearing with the corresponding holes in the pinion and the studs of
the pinion gearing with corresponding holes in the wheel and the faces of the
wheel and pinion being in contact or nearly so. This arrangement runs very
smoothly and as the studs can be made of hardened steel the wearing parts will
last a long time.
In another arrangement of this Invention the bevel or other wheel is provided
with rollers in lieu of teeth these rollers turning on pins or made with axles which
revolve in bearings in flanges of the wheel, and the pinion is made with rounded
teeth or with the said rounded studs to gear with the said rollers. Or the pinion may
be made with the rollers as above described to gear with rounded teeth or with
rounded studs formed on the bevel or other toothed wheel.
In another arrangement of this Invention the bevel or other toothed wheel or
wheel rim is made from a sheet metal blank the periphery of which is notched
or pierced out at equal distances apart so as to form teeth which are bent un to
the required angle to gear with teeth pins or rollers formed on the other wheel.
Dated this 7th day of December 1896.
CHARLES BOSWORTH KETLEY,
Agent for the Applicant.

page_text: Certain Improvements in Driving Gear for Safety Bicycles and other
Velocipedes and Motor Carriages.
I, SAM THOMAS RICHARDSON, of 3A, Rea Street, Birmingham, Cycle Manu-
facturer, 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 has reference to that kind of driving gear for safety bicycles
and other velocipedes and motor carriages in which bevel or other toothed wheels
are used, and my Invention is particularly applicable to toothed wheel driving
mechanism arranged as described in the Specification of Richard Price's Patent
No. 16729 of A.D. 1890 where the pedal crank axle is provided with a bevel wheel
gearing with a pinion on a longitudinal shaft carrying at the other end a
second pinion gearing with a bevel wheel on the driving wheel hub or
axlc. My Invention consists of the herein described improvements in the con-
struction of the teeth or acting surfaces of the bevel or other toothed wheels so
as to facilitate their manufacture and reduce friction.
In carrying out this Invention the bevel or other toothed wheel and the pinion
with which it gears are each made with rounded steel studs and holes alternately
instead of the usual teeth, the said studs of the wheel gearing with the corre-
sponding holes in the pinion and the studs of the pinion gearing with corre
sponding holes in the wheel and the faces of the wheel and pinion being in contact
or nearly so. This arrangement runs very smoothly and as the studs can be made
of hardened steel the wearing parts will last a long time.
On the accompanying drawing Fig. 1 is an elevation and Fig. 2 is a plan of a
pair of bevelled wheels constructed in accordance with this Invention; and Fig. 3
shews separately one of the rounded hardened steel studs of the said bevelled
wheels.
The same letters of reference indicate the same parts in all the figures.
On examination of the drawing it will be seen that the bevel wheel A and
the bevel pinion B are each made with rounded metal studs C projecting from
their faces these studs C being arranged alternately with holes D in the
periphery of the wheel and pinion so that the studs C of the wheel will gear with
the holes D in the pinion B and the studs C of the pinion will gear with corre-
sponding holes D in the wheel. The studs C are by preference made of steel and
hardened and are somewhat of a pointed dome shape as shewn, and each is made
with a shank c¹ of smaller diameter which fits in a corresponding hole in the wheel
or pinion to which the stud is fixed preferably by means of a split cotter e passing
through a hole in the shank of the stud as shewn in Fig. 2. By removing these
cotters e the studs C can readily be removed and replaced.
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. In bevel or other toothed driving gear for safety bicycles and other
velocipedes and motor carriages making the faces of said toothed wheels with
projecting metal studs and holes arranged alternately so that the studs of either

page_text: wheel gear with the holes in the other wheel substantially as hereinbefore set
forth.
Dated this 28th day of August 1897.
CHARLES BOSWORTH KETLEY,
Agent for the Applicant.