Arrangement of Driving Mechanism for Bicycles to enable Lame Persons to Ride.
Year: 1898

page_text: Date of Application, 2nd June, 1898
Complete Specification Left, 18th Feb., 1899-Accepted, 18th Mar., 1899
PROVISIONAL SPECIFICATION.
Arrangement of Driving Mechanism for Bicycles to enable Lame
Persons to Ride.
I, GILBERT NEVILLE HODSON, of Hollybrooke, Bray, County Wicklow, Ireland,
Land Agent, do hereby declare the nature of this invention to be as follows;-
This invention has reference to a new or improved arrangement of driving
mechanism for bicycles for enabling lame persons to ride with ease.
In carrying out my invention I take the ordinary bicycle which I propose
to alter by removing the pedal crank from the side at which the affected limb
works and attaching it to an independent axle carried in a suitable bracket
mounted on the horizontal member of the rear wheel fork at such a point as
may be best suited for the special purpose for which the invention is designed.
On this crank axle is keyed a suitable spur wheel whereby the rotary motion of
the independent axle is communicated to the ordinary chain wheel by a suitable
band or endless chain.
According to this arrangement the good limb works the ordinary pedal while
the affected limb engages the specially placed pedal thus enabling the rider to
propel the machine without the inconvenience experienced in connection with
cycles as ordinarily constructed.
Natal thin lot dou
T
1000
J. K. FAHIE & SON,
Agents for Applicant, 9, Westland Row, Dublin.
Arrangement of Driving Mechanism for Bicycles to enable Lame
Persons to Ride.
I, GILBERT NEVILLE HODSON, of Hollybrooke, Bray, County Wicklow, Ireland,
Land 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 has reference to a new or improved arrangement of driving
mechanism for bicycles whereby a pedal can be placed in such a position as to
enable lame persons to ride with ease.
In carrying out my invention I take the ordinary bicycle which I propose
to alter by removing the pedal crank from the side at which the affected limb
works, and attaching it to an independent or auxillary axle carried in a suitable
го .

page_text: bracket mounted on the horizontal member of the rear wheel fork, or any part of
the machine which may be found most suitable for the special circumstances of the
case for which the bicycle is designed.
On this crank axle is keyed a suitable spur wheel or sprocket whereby the
rotary motion of the independent or auxillary crank axle is communicated to
the ordinary chain wheel by a suitable band or endless chain.
Within the periphery of the independent or auxillary spur wheel or sprocket
may be arranged an eccentric, for the purpose of adjusting the tension of the
additional endless chain.
According to this arrangement the good limb works the ordinary pedal while
the affected limb engages the specially adjusted pedal, thus enabling the rider to
propel the machine without the inconvenience experienced in connection with
bicycles as ordinarily constructed.
In order that my said invention may be more readily understood and carried
into practice I attach the accompanying drawing which illustrates in elevation
an ordinary bicycle with my invention applied thereto.
A lady's bicycle is shewn because a male rider suffering from an affected limb
would, as a rule, find this type more convenient than the machine frame as usually
constructed for gentlemen.
The pedal crank on the opposite side of the drawing, which is intended to be
worked by the good limb is undisturbed while on the near side the pedal crank A,
which is worked by the affected limb is fixed to an independent or auxillary
axle B, rotating in the bracket C, hung from the horizontal tube 1), by means of
a strap D, which may be brazed or otherwise secured to the bar.
A sprocket wheel E, is also keyed to the axle B, and a similar wheel F, is
mounted on the ordinary crank axle, and these two wheels are coupled by an
endless chain as shewn, whereby the motion of the pedal crank A, is transmitted
to the ordinary chain wheel of the machine.
The arrangement shewn in the drawing is that intended to suit a rider suffering
from what is known as a stiff hip joint."
*
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I would have it
understood that what I claim is:-
The method of altering and arranging the pedal gear of bicycles, so as to suit
the requirements of lame persons whereby a pedal may be adjusted to any posi-
tion so that the affected limb may be readily brought into action without incon-
venience, in the manner substantially as herein described and illustrated in the
accompanying drawing.
Dated this 17th day of Fabura 1900
J. K. FAHIE & SON,
Agents for Applicant, 9, Westland Row, Dublin.