An Improved Tool for Straightening Bent Cycle Pedal Spindles.
Year: 1899

page_text: Date of Application, 29th Mar., 1899-Accepted, 13th May, 1899
COMPLETE SPECIFICATION.
An Improved Tool for Straightening Bent Cycle Pedal Spindles.
I, CARL BEHRENDS FREESE, of Westerstrasse, Norden, in the Kingdom of
Prussia, Dealer in Cycles, do hereby declare the nature of this invention and in
what manner the same is to be performed to be particularly described and ascer-
tained in and by the following statement:-
The methods and appliances heretofore employed for the straightening of
cycle pedal spindles which have become bent by reason of the bicycles falling
over or of frequently occurring similar causes, have the disadvantage that they
do damage to the pedals and sometimes also to the cranks and that they further
do not allow of making the said repair with the requisite rapidity which is the
necessary consequence of the fact that the pedals have to be taken off for the
purpose of effecting the straightening operation.
Now the present invention relates to a new tool which I prefer to call a bending
fork by means of which bent pedal spindles can be straightened with equal rapidity
and certainty and also without damaging the articles.
In the accompanying drawings which illustrate the bending fork,
Figure 1 is a view in side elevation of a crank with its pedal and with a bend-
ing fork applied thereto.
Figure 2 is a view in plan thereof, and
Figure 3 is a sectional view on the line X-X of Figure 1.
The bending fork is made of a piece of steel which is formed at one end with
a handle c and at its other end with a fork having two suitably curved prongs a
and b.
9
For the purpose of straightening a bent pedal by means of this fork it is not
at all necessary to take off the pedal but the prongs of the fork are simply in-
serted between the pedal spindle o and the rubber, felt, or the like blocks and h
which serve to support the feet; and the pointed end portions of the sprongs a
and are placed against the end plate e of the pedal which is nearest to the
crank m, whilst the upper rounded portion of the fork is placed at the same time
on top of the outer end plate d of the pedal. Then by exerting a more or less
powerful pressure upon the handle c of the bending fork the operator is able to
bend back the pedal conveniently and easily to the required extent, it being of
course, understood that the crank m will have been set in such a manner that by
bending down the fork the bending of the pedal spindle will take place in the
desired direction. It is also obvious that the bending fork may advantageously
be made of different shape so that it can be inserted in a symmetrical position
relatively to that shown in Figure 1 into the pedal and in this case a pressure
can be exerted upon the handle c from below upwards.
Having now particularly described and ascertained the nature of my said in-
vention and in what manner the same is to be performed, I declare that what I
claim is:
A new tool or bending fork for straightening bent cycle pedal spindles,
characterised by its suitably curved prongs a and b which are placed with their

page_text: pointed end portions against the pedal end plate e which is nearest to the crank m,
and with their ends that are nearest to the shank of the fork against the outer
pedal end plate d, and by a handle e which is formed on its other end and upon
which the necessary pressure for bending is exerted, substantially as set forth.
Dated this 29th day of March 1899
ROBERT E. PHILLIPS, Assoc. M.Inst.C.E., M.I.Mech. E.,
Chartered Patent Agent, 70, Chancery Lane, London, W.C.,
Associate Agent.