Improvements in or connected with Bicycles and other Velocipedes.
Year: 1890

page_text: Date of Application, 9th Oct., 1890
.
Complete Specification Left, 9th Mar., 1891-Accepted, 11th Apr., 1891
PROVISIONAL SPECIFICATION.
Improvements in or connected with Bicycles and other Velocipedes.
I, CHARLES LITCHFIELD, of 18, Cambridge Street, Wellingborough, in the
County of Northampton, Machinist, do hereby declare the nature of this invention">
to be as follows:-
My invention chiefly relates to what are known as safety bicycles, and comprises
improved means for transmitting the motion of the pedals to the driving wheel.
According to my invention I mount a bevel-wheel upon the pedal shaft, which
bevel-wheel engages with a pinion on one end of a shaft arranged longitudinally
of the machine in suitable bearings. On the other end of the said shaft is a bevel-
pinion engaging with a bevel-wheel secured to the driving-wheel or axle.
It is obvious that the relative diameters of the wheels and pinions may be varied
according to the speed required.
Although I have described my arrangement of gearing as applied to safety
bicycles, it is to be understood that it is applicable to other kinds of velocipedes.
Dated the 9th day of October 1890.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in or connected with Bicycles and other Velocipedes.
I, CHARLES LITCHFIELD, of 18, Cambridge Street, Wellingborough, in the
County of Northampton, Machinist, 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 :-
My invention chiefly relates to what are known as safety bicycles, and
comprises improved means for transmitting the motion of the pedals to the driving-
wheel.
According to my invention I mount a bevel-wheel upon the pedal-shaft, which
bevel-wheel engages with a pinion on one end of a shaft arranged longitudinally of
the machine in suitable bearings. On the other end of the said shaft is a bevel-
pinion engaging with a bevel-wheel secured to the driving-wheel or axle of the
same.
To enable my invention to be fully understood I will describe the same with
reference to the accompanying drawing, in which
Figure is an elevation of a safety bicycle provided with driving gear arranged
according to my invention; and,
Figure 2 is a plan view of the said driving gear drawn to a larger scale-than
Figure 1.
a indicates the pedal-shaft of the bicycle, and the bevel-wheel mounted upon
the same c is the longitudinal shaft which, at one end, is provided with a bevel-
pinion d, engaging with the bevel-wheel 6, and at the other end with a bevel pinion e
engaging with a bevel-wheel on the hub of the driving wheel. The shaft c is at
one end carried in a bearing g secured to an arm projecting from the bearing i in
which the pedal-shaft rotates, and at the other end in a stirrup k secured to the
axle-pin of the driving-wheel.
In practice I advantageously enclose the shaft c in a tube m supported at one end
by the arm and at the other end by the stirrup k; the said tube, in addition to

page_text: protecting the said shaft, also serving to steady the bearings in which the said shaft
rotates.
It is obvious that the relative diameters of the bevel-wheels and pinions may be
varied according to the speed required.
Although I have described my invention as applied to safety bicycles it is to be
understood that it is applicable to other kinds of velocipedes.
Having now particularly described and ascertained the nature of iny said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is
1. Means for transmitting the motion of the pedal shaft of a velocipede to the
driving-wheel, substantially as herein before described.
2. The application to a bicycle of means for transmitting the motion of the pedal-
shaft to the driving-wheel, substantially as hereinbefore described and illustrated in
the accompanying drawing.
Dated the 9th day of March 1891.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.