A New and Improved Pedal for Velocipedes or other Carriages.
Year: 1897

page_text: Date of Application, 26th Apr., 1897-Accepted, 3rd July, 1897
⚫ COMPLETE SPECIFICATION.
A New and Improved Pedal for Velocipedes or other Carriages.
HENRY WATERSON 67 and 69 Albert Road Aston Birmingham Merchant 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 improvements in pedals of the kind which are
adapted to be adjusted for width by moving one or both bearings inwards or
outwards in line with the longitudinal axis of the pedal pin or axle.
My invention has for objects, to retain the bearing balls within their races during
the operation of adjusting to the required width, to protect the bearings from dust,
and to provide a means of expanding and contracting the width of the pedal
without disturbing the adjustment of the bearings.
In the accompanying drawings I have shewn methods of carrying my invention
into practice.
Figure 1 is a plan (partly in section) of a Pedal having ball retaining and dust
proof devices constructed according to this my invention.
Figure 2 is a side elevation of the same Pedal but shewn in its expanded
position.
Figure 3 is a plan (partly in section) of a Pedal which is arranged to be
expanded and contracted without disturbing the adjustment of the bearings.
In all the figures similar letters refer to similar parts.
In figure 1A is the pedal pin or axle having a long screw threaded portion at,
its outer end a.
The adjusting cone B is provided with a lock nut C which serves to retain the
outer Pedal end plate D in approximate relative longitudinal position with regard.
to the cone B.
The inner Pedal plate F has a collar or plate E which also retains the plate Fin
a approximate position to the ball race and collar on the inner end of the l'edal
pin A.
The outer Pedal plate D has fixed to it a dust protecting cap G and dust
protecting tube H.
The inner Pedal plate F has fixed to it a dust protecting tube I which telescopes
or slides within the tube H.
The outer Pedal bars J are attached to the outer Pedal plate D and the inner
Pedal bars K are attached to the inner Pedal plate F.
The said Pedal bars K are furnished with slots kkkk.
LLL L are screw bolts.
The bolts pass through holes in the outer Pedal bars K and are free to slide
in the slots k of the Pedal bars K when the nuts m m m m are slackened.
In order to expand the Pedal to the position shewn in Figure 2 the dust cap. G. is
removed; the lock nut B, and the screw bolts L L L L are slackened.
The cone B can now be screwed outward along the Pedal pin end a.
The lock nut C of cone B causes the Pedal plate D with its attached Pedal bars J

page_text: to move with it to any desired distance between the positions shewn in Figure 1
and Figure 2.
The screw bolts L L L L are then tightened, and adjustment of the ball bearings
is made by means of the cone B, which said cone is afterwards locked in position
by the lock nut b.
The dust cap G is then replaced at will.
Figures 1 and 2 represent what are known in the trade as rat-trap Pedals but
rubber or other substances may be used as a tread if desired.
I will now describe a Pedal which can be expanded or contracted in width
without disturbing the adjustment of the ball bearings.
In Figure 3 the Pedal axle or pin A has a ball race at its outer end and is
formed with a stalk which slides within the hollow outer portion of A.
The Pedal bars N are attached to the outer plate D and slide into the tubular
Pedal bars O attached to inner plate F.
The dust protecting tubes H I are or may be formed integral with the Pedal
plates F D.
The ends of the tubes H I are screwed, one with a right hand thread and the
other with a left hand thread respectively.
The collar or sleeve P is screwed with a right and left hand thread to suit the
threads on the tubes H I.
The outer end a of Pedal axle A is prevented from turning by means of a set
screw working in a slot S.
The Pedal as herein described and illustrated by Figure 3 can be expanded
and contracted by turning the collar or sleeve P.
The Pedal bars N and the Pedal pin a telescope or slide within and upon each
other, being connected to the ball bearings and actuated by any movement thereof.
The end a of Pedal pin A is or may be locked in position after adjustment for
width by means of, the screw Q which can be operated through a hole or slot W,
which said hole or slot is or may be provided with a cover.
Adjustment for wear of the ball races is effected by turning the caps T which
are locked by set screws UU or other mechanical equivalents."
Pedals constructed according to this invention when adjusted and locked as herein
described operate in a similar manner to ball Pedals of the ordinary type.
I do not limit myself to the exact shape or proportion of any of the parts shewn
in the accompanying drawings; as instead thereof I may use other suitable forms
of Pedal axle, Pedal plate, or Pedal bar without departing from the spirit of my
invention.
I am aware that Pedals adjustable for width by means of moving the bearings
have been proposed but practical difficulties have prevented their general use by
the public and these difficulties I have sought to remove by this invention.
Having now particularly described and ascertained the nature of this my
invention, and in what manner the same is to be performed, I declare that what I
claim is
1. In Pedals adjustable for width by means of moving the bearings, the use
of ball and end plate retaining devices as and for the purpose herein described and
illustrated by Figure 1 of the accompanying drawings.
2. In a Pedal adjustable for width the combination and use of,
(A) Ball and end plate retaining devices.
(B) Dust protecting tubes telescoping one with the other.
(C) Dust protecting end cap as and for the purpose described.
3. In Pedals adjustable for width by means of adjusting the bearings the use
of a Pedal pin or axle having bearings at or near each end, and adjustable as
to distance between the said bearings, upon altering the length of the said Pedal
pin body, by moving one part upon the other substantially as herein described and
illustrated in Figure 3 of the accompanying drawings.
4. In a Pedal pin adjustable for width by means of moving the bearings the

page_text: combination and use of the dust tubes H,I and the sleeve P having right and left
hand screw threads as and for the purpose herein described and illustrated by
Figure 3 of the drawings.
5. In a Pedal adjustable for width the use of a solid pedal bar N in combination
with a hollow Pedal bar as and for the purpose herein described and illustrated by
Figure 3 of the drawings.
6. In a Pedal adjustable for width by means of moving the bearings the con-
struction and employment of ball races having adjusting caps J and lock screws U
substantially as herein described and illustrated by Figure 3 of the drawings.
7. In Pedals adjustable for width by means of moving the bearings the
combination and use of
(A) The expanding Pedal pin' A.
(B) The set screw Q.
(C) The dust tubes H I and collar P.
(D) The solid Pedal bars N and hollow Pedal bars 0.
(E) The adjusting bearing caps T and set screws U.
(F) The slot or hole W in dust tube H all arranged and operating substantially
as herein described and illustrated in Figure 3 of the drawings.