Car Driving Gear for Cycles.
Year: 1898

page_text: Date of Application, 31st Jan., 1898
Complete Specification Left, 23rd July, 1898-Accepted, 10th Dec., 1898
Car Driving Gear for Cycles.
THOMAS POWELL MOYLE POWNING, 2, Mount Street, Diss, Norfolk, Inland Revenue
Officer, and THOMAS KEMP MACE, 96, Gough Road, Birmingham, in the "County of
Warwick, no occupation, do hereby declare the nature of this invention to be as
follows:-
A chainless driving gear for bicycles, tricycles, cycles, carriages and the like as
follows: A cog wheel hereinafter called the hub cog wheel is fitted onto either
end of the hub of the wheels of cycle or carriage, preferring the hind wheels but
not confining myself to the hind wheels; and outside the hub cog wheel and
covering it I use another cog-wheel hereinafter called the crank cog wheel with its
centre beyond the circumference of the hub cog wheel, and with cogs directed
inward and working into the teeth of the hub cog wheel. A shaft with eccentric
attachment connects the crank cog wheel with the spindles or cranks of the bicycle
or carriage to which the pedals are usually fixed.
Dated this 31st day of January 1898
THOMAS POWELL MOYLE POWNING.
THOMAS KEMP MACE.
A Chainless Driving Gear for Cycles.
THOMAS POWELL MOYLE POWNING, 2, Mount Street, Diss, in the County of
Norfolk, Inland Revenue Officer, and THOMAS KEMP MACE, 96, Gough Road,
Birmingham, no occupation, 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 improved means and appliances for the driving of
bicycles in which the power is conveyed from the pedal cranks to the driving wheel
by means of a shaft cog wheels and cranks.
Fig. I A is a large cog-wheel, preferably attached to the pedal spindle, having
teeth or rollers pointing inwards and engaging with B, a small cog wheel inside A
and attached to spindle C with teeth pointing outwards.
D is a crank connecting shaft G with spindle C.
E is a crank connecting shaft G with a bearing on one of the forks or other
convenient position.
F is a crank connecting shaft G with the spindle or hub of the driving wheel.
[Price 8d.)

page_text: G is the driving shaft conveying the power from the pedal cranks to the driving
wheel.
HH are the pedal cranks.
Fig. II is a plan of Fig. I.
The power being applied at the pedal cranks H H is conveyed by means of
wheels A and B and spindle to the crank D whence by means of shaft G it
is conveyed to cranks E and F and the driving wheel.
Another application of this arrangement is shown in Figure 3, in which the cog-
wheel B is attached to the hub or spindle of the driving wheel. The shaft G
transmits the power from the pedal cranks to cog-wheel A which, working on a
bearing attached to one of the forks, conveys the power to wheel B and thence to
the driving wheel.
In Figures 1, 2 and 3, the spindle and hub of the driving wheel are attached as
if forming one part; and the bearings of the driving wheel are fixed in the forks of
the bicycle.
The crank E and the pinion B (Figure 1) and the wheel A (Figure 3) will all be
mounted in the frame on ball bearings.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed we declare that what
we claim is:-
A driving mechanism for bicycles in which the power is conveyed from the pedal
cranks H H to the driving wheel by means of cog-wheels A and B, shaft G and
cranks D, E and F.
Dated this 22nd day of Novambar 1000
T. P. M. POWNING.
T. K. MACE.