Improvements in and relating to Driving Pedals
Year: 1897

page_text: PROVISIONAL SPECIFICATION.
66
Improvements in and relating to Driving Pedals."
I, DAVID WILSON, of 14 Wemyss Place, in the County of the City of Glasgow,
Plumber and Gasfitter, do hereby declare the nature of my Invention to be as
follows:
This Invention has reference to and comprises Improvements in the construction
of pedals for driving cycles or any other machinery of the pedal driven class,
where pedals of a like construction are capable of being used, and has for its
object the providing of a spring action to obviate, shock to the users foot.
According to one arrangement the pedal would be of the ordinary rectangular
frame form used for cycles fitted free to revolve on the crank pin of driving crank,
but would have a second rectangular frame, on which the foot would rest, fitted
within it. This inner frame would have eye brackets fitted preferably at each
corner to work on short spindles erected on brackets or bridge pieces secured
within the other rectangular frame, and having nuts secured on their tops to
hold the inner frame in position. Spiral springs on the spindles would be inter-
posed between the brackets of the two frames to give the desired spring action.
The upper edges of the inner frame would be serrated or roughened to give a
good hold to the sole of the foot in the usual manner.
Instead of spiral springs, other forms of springs, such as bow springs, elliptical
or blade springs, may be fitted between the two rectangular frames.
Dated 1721
1007
W. R. M. THOMSON & Co.
96 Buchanan St. Glasgow Agents.
Improvements in and relating to Driving Pedals.'
I, DAVID WILSON, of 14 Weymss Place in the County of the City of Glasgow,
Plumber and Gasfitter. 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 and comprises Improvements in the. construction
of pedals for driving cycles or any other machinery of the pedal driven class,
where pedals of a like construction are capable of being used, and has for its
object the providing of a spring action to obviate shock to the users' foot.
13.45
According to one arrangement the pedal would be of the ordinary rectangular
frame form used for cycles fitted free to revolve on the crank pin of driving crank,
but would have a second rectangular frame,..on. which the foot would, rest,. fitted
[Price Add

page_text: within it. This inner frame would have eye brackets fitted preferably at each
corner to work on short spindles. erected on: brackets or bridge pieces secured
within the other rectangular frame, and having nuts secured on their tops to
hold the inner frame in position. Spiral springs on the spindles would be inter-
posed between the brackets of the two frames to give the desired spring action.
The upper edges of the inner frame would be serrated or roughened to give a
good hold to the sole of the foot in a usual manner.
Instead of spiral springs, other forms of springs, such as bow springs, elliptical
or blade springs, may be fitted between the two rectangular frames.
5
In order that my invention may be properly understood and readily carried 1
into effect, I have hereunto appended one explanatory sheet of drawings in the
several figures of which corresponding parts are marked with the same letters
of reference.
Figure 1, is a front elevation, Figure 2, is a longitudinal section and Figure 3,
is a sectional end view of a cycle pedal made in accordance with and constituting
my invention.
Figure 4, is a plan, Figure 5, is a longitudinal section of a modification of
the pedal illustrated in Figs 1, 2, and 3. and Figure 6, is a sectional end. viow
of a still further modification.
It will be seen from the Figures that the pedal constitutes an outer frame A,
of rectangular box configuration and is so constructed as to revolve in ball
bearings round the crank pin B, but is not capable of any other motion. A second
rectangular frame C, of such dimensions as to fit freely within the frame A, is
capable of a telescopic movement when pressure is exerted upon the roughened
or corrugated upper edges by means of the cyclists foot during the operation of
pedalling.
The frame C, is invested with an amount of resilience due to spiral springs D,
which are interposed between the two frames A and C, and are coiled round the
fixed pins or studs E, as seen. To receive the fixed ends of the pins or studs,
cheek or lug pieces F, are provided in each corner of the frame A, as seen more
particularly in Figure 4, and screwed nuts G, are fitted on the ends of the pins
or studs E, which prevent the frame C, being displaced from the frame A, Înto
these cheek pieces the lower ends of the pins or studs are screwed. Similar cheek
pieces F. are formed upon the nether edges of the frame C, and holes are formed of
sufficiently large diameter to allow of free sliding action of the frame C, upon
the bolts, which act as guide rods.
Referring to Fig 5, it will be observed that the frames A, and C, are duplicated,
by virtue of such construction two roughened surfaces are presented to the foot
after the manner of pedals presently in use. The pedal here shown does not
otherwise differ from that shewn in the before mentioned figures. This being so
further explanation of the parts is not needed.
In the modification shewn in Fig 6, in lieu of the pins or studs E, and the
spiral springs D, a bow spring E' mounted at either side of the pedal is employed.
This spring E. is placed transversely, one end being supported on the cheek or
lug H while the other end is supported on the cheek or lug H¹. The lower end
of the frame C, being formed with bridge pieces I, they have a central bearing
on the apex of the springs E. and at this point rivets I¹, secure them to the springs
as seen in the figure.
1
The arrangement of sliding frame C, supported upon springs D, as herein
before described affords greater facility to the cyclist of getting over the dead
centres, while vibration and jar communicated to the pedals are nearly all
absorbed and rendered nil.
Having now particularly described and ascertained the nature of my said
Invention and in what manner the same is to be performed I declare that what
claim is:-
1. In pedals of cycles and other machines the combination of an outer revolving

page_text: frame and the arrangement of an inner moveable frame supported on springs and
operating substantially in the manner and for the purposes herein before described
and shewn on the drawings.
2. The general arrangement and combination of parts operating substantially
in the manner and for the purposes hereinbefore described and shewn on the
drawings.
DAVID WILSON
Applicant.