Improved Means and Appliances connected with Cycle Propulsion.
Year: 1897

page_text: PROVISIONAL SPECIFICATION.
Improved Means and Appliances connected with Cycle Propulsion.
I, FREDERICK CHARLES JACOBS, of 25, Shillington Street, Battersea, County of
London, Coach-smith, do hereby declare the nature of this invention to be as
follows:-
This invention has for object, certain improved means and appliances connected
with cycle propulsion.
To carry my invention into effect, I connect rods to the ordinary pedal pins and
fit pedals on the forward projecting ends of said rods, the rear ends of said rods
being free to slide in rings or sockets of links depending from the axle of the rear
wheel.
The rings or sockets can be provided with anti-friction rollers or spheres and are
capable of adjustment as to height to determine the thrust for the down stroke of the
pedals action.
By this invention, greater than usual leverage can be obtained with little or no
increase of travel for the feet of the rider.
The increase of distance of the pedals from the crauk also facilitates fitting higher
gear with reduction of labour in pedalling.
H. GARDNER,
Patent Agent, 166, Fleet Street, London,
Agent for the said Frederick Charles Jacobs.
Improved Means and Appliances connected with Cycle Propulsion.
FREDERICK CHARLES JACOBS, 25, Shillington Street, Battersea, Tyre and Coach-
smith, Cycle, etc., Maker, 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 :-
The invention claimed is an improved crank 3 or more inches to be affixed to any
cycle by which is obtained increased reach where the pressure is most required and
increased speed and power.
The crank diminishes 3 inches or more (or the ordinary length of the crank)
where pressure is not wanted; so that the rider does not of any cycle require any
longer reach with the improved crank attached to the machine, than is required
without it, and no more exertion and power are necessary. The improvement of
34 inches or more of reach as shown on the plan marked A gives greater power and
speed and is obtained by the additional crank markek B which runs in ball or other
1 Erin Q1

page_text: bearings markek C and fixed on spindle marked D of the hind wheel of any cycle,
and is attached to the crank marked E marked E of the machine which also runs on
ball or other bearings marked F.
The greater power and speed are attained without any extra exertion or labour
on the part of the rider of any cycle.
This improvement can be made or affixed to any cycle or fitted to any existing
machine whether chain or chainless and of any other description.
Having now particularly described and ascertained the nature of my said invention
and in what manner the saine is to be performed I declare that what I claim is :-
1. In cranks the combined construction and anangement of the various parts
substantially as described and illustrated herein.
2. In cranks an additional crank carried upon a stay attached to the spindle of the
hind wheel, the said crank running upon ball or other bearings, and carrying the
driving pedal or tread, in combination and in the manner described herein.
Dated this 7th day of December 1897.