Improvements in the Manufacture of Cycle Pedals.
Year: 1894

page_text: Date of Application, 30th Jan., 1894
Complete Specification Left, 7th Mar., 1894-Accepted, 21st Apr.. 1894
PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of Cycle Pedals.
I WILLIAM PICKEN Engineer of 24 Frankfort Street Birmingham in the
County of Warwick do hereby declare the nature of this invention to be as
follows:-
This invention consists of Improvements in the Manufacture of Cycle Pedals
whereby I make them lighter without decreasing the strength. For this purpose
instead of making the rat traps bars flat as now made I make them of a curved
shape lengthways thus increasing the strength without increasing the weight I also
make the spindle of the pedal fluted instead of round that is making 4 or more
grooves along the middle part of the spindle iu the direction of its length thereby
making the said spindle lighter without decreasing its strength.
Dated this 29th day of January 1894.
WILLIAM PICKEN.
COMPLETE SPECIFICATION.
Improvements in the Manufacture of Cycle Pedals.
I WILLIAM PICKEN Engineer 24 Frankfort Street Birmingham in the County
of Warwick 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 consists of improvements herein after described in the manufacture
of pedals of the kind known as rat trap pedals whereby the rat trap bars are
corrugated or fluted longitudinally and the end plates are slotted or pierced with a
curved slot corresponding to the shape of the rat trap bars for the purpose of being
rivetted together.
For this purpose I will now describe with reference to the accompanying
drawings the manner in which my invention may be performed.
Figure 1 represents the end elevation of the rat trap bar before it is rivetted in
the end plate and shewing the shape of the bar curved according to my invention.
Figure 2 shews a front view of the same bar.
Figure 3 is a representation of the end plate shewing the curved slots A and B
into which the rat trap bars are rivetted. I do not limit myself to this particular
shape which may be varied as shewn in Fig. 4 as the object of corrugating or
fluting the said bar is to strengthen it so that it will not buckle or bend in use.
I also make the pedal spindles grooved or fluted longitudinally for the purpose
of making the said spindles lighter without decreasing the strength.
Figure 5 represents an elevation of the pedal spindle shewing the grooves in the
middle part of the spindle between the letters C and D.
Figure 6 is a section of the spindle on the line E F shewing the shape of the
grooves according to my invention but which may also be varied by making
the said spindles of a triangular section shewn in Figure 7.

page_text: Having now particularly described and ascertained the nature of my inven-
tion and in what manner the same is to be performed I declare that what I
claim
1st. Is the bending or corrugating the rat trap bars of cycle pedals instead of
making them flat as ordinarily used for the purpose of strengthening and making
the said bars more rigid as shewn in Figures 1 and 4.
2nd. Piercing the curved slots in the end plates to fit the corresponding curve
of the rat trap bar for the purpose of rivetting the end plates and the rat trap
bars together.
3rd. Making the pedal spindles of a fluted or grooved section with either 3 or 4
grooves along the spindles as set forth in the accompanying drawings Figures 6
and 7.
D
L 1
£ ML
L 1001
WILLIAM PICKEN.