CONVERTIBLE RAT TRAP OR RUBBER PEDALS FOR VELOCIPEDES
Year: 1884

page_text: WILLIAM ARTHUR PICK of 13 Caledonia Street Kings Cross in the County
of Middlesex Engineer and Bicycle Maker do hereby declare the nature of my
Invention for CONVERTIBLE RAT TRAP OR RUBBER PEDALS FOR VELOCIPEDES
and in what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement :-
铲
This Invention can be applied to plain coned, roller and ball bearing pedals of
bicyles, tricycles and other velocipedes.
For the conversion of those parts of the pedals known as the bars, to present
by the rotation of the said bars different surfaces for a foothold in propelling
velocipedes.
A toothed edge technically called rat trap gives a firmer grip to the feet in wet
weather or for racing, rubber bars are to be preferred in dry weather but slip when
wet, the rubber or rat trap bars may be of any convenient shape or surface but
preferably as shewn in Drawings, pedals called Combined Pedals Patent applied for
March 22nd 1878 N° 1149 having fixed bars of rubber on one driving side and rat
trap edges upon the other the pedal having to be turned over the side required.
I claim for the convertible pedals, the following advantages the toothed edges
give a firmer grip to the feet for racing or in wet weather the rubber slipping when
wet but it is to be preferred when dry the rubber acting as a cushion. The pedals
can be converted in a short space of time giving the surface desired on both sides
making a complete pedal in each position.
'
Fig. 1 shews one of the two bars forming parts of the pedal the slot A holds the
cylinder of rubber. Fig. 2 by the longitudinal grooves shown the hole thro' the
centre save weight and allows the rubber to be compressed with the slot the slits
at each end E. E cover and fit over the lugs B B formed on the bar Fig. 1 those
parts of the lugs that project C. C fit into the bearing holes in the side plates of
the pedal, Fig. 3 A A bearing holes.
The washer D Fig. 1. secures one lug in the plate but freo to turn tho other lug is
squared at end also free to turn in bearing holes, the crank E fitted on to squared
end, another crank is fitted to corresponding lug, on second bar, the 2 cranks are
connected by the connecting length B. C Fig. 4, which represents one of the
pedals complete having the rat trap bars for use. The conversion is affected by
simply drawing out the stud A fixed to the spring C.
Link D-the stud has a pin passing through a hole in
The spring rivetted to the
link B into one of the two

page_text: lotting holes inside plate, the two bars when turned or rotated, a quarter of a
revolution to the left present the rubber bars for a foothold on both sides of the
pedal as the bars are turned the cranks carry the link B until the pin of the
stud A is opposite the hole D-Fig. 4. The spring then presses the pin into the hole
relocking it in position shewn in Fig. 5.
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
I claim is
1st The conversion of those parts of the pedal which are in contact with the feet
in the action of propelling velocipede, bicycle or tricycle, called the bars from toothed
edges on both driving sides to a rubber surface on both driving sides or the reverse
conversion.
2nd The turning or rotation of the bars of the pedals upon their axes or, on an
axis, that is to say, the lugs B. B Fig. 1 may have holes thro' to allow them to
revolve on spindles which would be the same conversion.
3rd The rotation of the bars to the left as shown by a quarter revolution, may be
varied by suitable movements or mechanism, the conversion may be affected by
other combination as regards the rotation of the bar or bars of the pedals,
separately, instead of coupled or in different directions right or to the left, by any
part of, or number of revolutions of the bars.
4th Also its application to plain roller or ball bearings or bicycles, tricycles, and
other velocipedes.
The same surface or edges upon both driving sides of pedals means, not only
have the two bars upon one side of pedals have the same edges or surface as at
foothold, but the opposite sides of each bar forming the second side of pedals have
also the same edges or surface in each conversion.
TYD DIAM
PICK
ATTATT
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