An Improvement in the Driving Gear and Construction of Cycles.
Year: 1894

page_text: Date of Application, 4th Oct., 1894
Complete Specification Left, 14th Dec., 1894-Accepted, 26th Jan., 1895
PROVISIONAL SPECIFICATION.
An Improvement in the Driving Gear and Construction of Cycles.
THOMAS STAINES, Mill Manager, 5 Balmoral Grove Hunslet Leeds JOHN
LEADBEATER, Commercial Traveller 11 Arthington Terrace, Hunslet Leeds
ABRAHAM PRESTON, Mechanic Belinda Street Hunslet Leeds do hereby declare
the nature of this invention to be as follows:-
This invention consists of an improved method and appliances for the driving
and construction of cycles a detachable framework of steel or other suitable metal
extending from the saddle bar and projecting over the rear wheel, the framework
(on which can be attached an extia or more saddles) being an addition and attached
to the existing framework, the diving geal consists of a hollow axle through which
18 inserted an extra crank shaft (from which the pedals are detachable)-the pro-
pelling power being transmitted from the extra ciauk shaft by a small cham wheel'
to an extra chai wheel on the original pedal shaft retransmits its power to the rear
wheel. This construction can be applied to both frout and ear wheels, by an
addition of chains and suitable cog wheels. By this arrangement an ordinary cycle
can be converted into a tandem or triplet cycle.
Dated this First day of October One thousand eight hundred and ninety-four.
An Improvement in the Driving Gear and Construction of Cycles.
We, THOMAS STAINES, Mill Manager, of 5, Balmoral Grove, Hunslet, Leeds,
JOHN LEADBEATER, Commercial Traveller, of 11 Arthington Terrace, Hunslet,
Leeds, and ABRAHAM PRESTON, Mechauic, of Belinda Street, Hunslet, Leeds,
do hereby declare the nature of this invention, and in what manner the same is to ho
performed, to be particularly described and ascertained in and by the following
statement
This invention consists of an improved method of constructing and means or
appliance for driving cycles.
The objects of our said iuvention are to construct a cycle, or so arrange its parts,
that it can be readily converted from a single, to a tandem, or vice versa, and to
obtain a greater speed, with the saine amount of energy.

page_text: Fig. 3, is a side elevation of part of tandem cycle, showing driving mechanism as
hereinafter referred to.
Fig. 4, is a plan of Fig. 3 showing the hub in section.
In carrying out our invention we employ a detachable framework, B and C, made
of steel or other suitable metal or material, extending from the saddle bar D and
projecting over the rear wheel E.
The said framework, (to which can be attached an extra saddle) is an addition,
and is attached, to the ordinary or existing framework. The said diving gear
consists of a hollow axle E' through which is inserted an extra crank shaft F from
which the pedals G are detachable, the said crank shaft running free within the
hollow axle.
When the pedals G are detached see Fig. 2 (from the rear wheel) as when
forming the cycle in a single one, corresponding bosses are screwed on, in their
place, upon the crank shaft F and secured thereon by pins, or other suitable
means.
The propelling power is transmitted from the crank shaft F by chain H from
chain wheel II to chain wheel J, upon the pedal shaft L, and a larger cham
wheel M upon the said pedal shaft L which retransmits its power to the real wheel E
by means of a second chain H2 passing over the wheels M and E'.
This construction can be applied to both front and rear wheels by an addition of
chains and suitable cog-wheels, and by this arrangement an ordinary cycle can be
readily couverted into a tandem and vice versa.
Greater driving power is obtained as both riders concentrate their power upon the
rear wheel, whilst the weight of both riders is thrown upon the driving wheel, the
driving chains being equally placed upon each side of the hub there is no unequal
strain as in the ordinary construction and driving of tandem cycles
In Fig. 2, the framework 13 and C is removed, and the pedals G are detached
from the crank shaft F, as before referred to, so converting the cycle from a tandem,
as shown in Fig. 1, into a single one. In this case the cycle is propelled by the
rider from the shaft L.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is
1. In cycles, the arrangement and construction of framework whereby an ordinary
or single can be converted into a tandem cycle, or vice versâ, in the manner,
substantially such as shown and described.
2. In cycles, the arrangement and construction of driving gear on each side the
hub for transmitting motion from the rear wheel, to the diving wheel of the front
ider, and for obtaining an increase of speed, such as shown and described.
3. In cycles, the arrangement and construction of hollow axle E within which
freely works the crank shalt F to which the pedals G are attached, substantially as
shown and described.
Dated this 13th day
D100.4
JOIN E. WALSH,
Royal Exchange Chambers, Boat Lane, Leeds,
Patent Agent to the Applicants.