IMPROVEMENTS IN PEDALS FOR VELOCIPEDES
Year: 1884

page_text: PROVISIONAL SPECIFICATION.
I JOSIAH JACKSON of 59 Lower Ford Street, Coventry in the county of
Warwick, Machinist, do hereby declare the nature of the said invention for
"IMPROVEMENTS IN PEDALS FOR VELOCIPEDES" to be as follows:-
According to this invention the two ends of the pedal are made in two parts
longitudinally and screwed together. The halves are connected by longitudinal
bands or bars cast with or screwed to same, and formed with recesses to hold
india rubber to prevent the foot slipping. This is secured in the recesses by an
outside band or bar preferably formed with corresponding recesses to those in
the connecting band, but in opposite directions, to which it is screwed, and to
the ends.
By the ends being formed in halves as described, I am able to easily, cheaply,
and more effectually employ "ball" or "roller" bearings to reduce the friction to
the crank arm. This I do by forming an internal groove or shoulders in the ends,
and round the crank arm, in which the balls are held and revolve; these I profer
to place in a collar, with holes for the bearing part to project through.
The pedal is retained on the crank arm by the balls entering the grooves round
same. Or in place of the grooves, outside collars fitted on the crank arm may
be used, but I prefer the former.

page_text: COMPLETE SPECIFICATION.
I JOSIAH JACKSON of 59 Lower Ford Street, Coventry in the County of
Warwick, Machinist, do hereby declare the nature of my said invention for
"IMPROVEMENTS IN 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 :-
This invention refers to improvements in velocipede pedals, and consists, firstly
in an improved arrangement to facilitate the use of ball bearings to the crank arm,
and secondly, in a new way of holding pieces of india rubber, or other suitable
material for the foot to rest úpon.
Figure 7, plan of same.
Figure 8, sectional plan.
Referring to figures 1. 2. 3. 4 and 5. The ends of the pedal are made in two
halves a and b screwed together by screws c, and connected together by inter-
mediate longitudinal recessed bars or bands ƒ preferably cast with same, and by
loose outside bars or bands f' screwed to f and to ends, a. b by sorews i. These
connecting bars or bands and f¹ are formed with corresponding recesses in
reverse directions to hold or secure pieces of india rubber or other suitable
material h, which is tightly gripped by screwing up f¹ by screws i. In the
interior of the ends a and b, corresponding grooves e, are formed as a guide
bearing for the balls to revolve in. is crank arm which passes longitudinally
through pedal, the latter may be retained on arm either by grooves and A, or by
collars or shoulders as shown at figure 8..
:
Referring to figures 6. 7. and 8 a¹ are ends of pedal, f* and f³ the longitudinal
connecting bars or bands, and india rubber holder, m shoulder, and n loose collar
on arm k, secured by nuts r at end both shoulder and collar are preferably counter-
sunk in ends of a' as shown. In these figures neither of the longitudinal connecting
bars or bands f³ and f³ are cast or formed in one piece with the ends as in
figures 1. 2. 3 and 4 f being screwed to the ends in any suitable manner, for
example the terminations of f* may be formed with a stem to pass through a³, and
be secured on outside by nut as shown at p or outside screws may be used. f³ is
screwed to f. The pedal is retained on crank arm by collar n, secured by nuts
as shown, this collar n is formed with a half groove bearing for the balls, and is
prevented from turning by usual flat, shown at figure 9.
Additional security is afforded to the ends a¹, by connecting them longitudinally
by a tube o, attached in any suitable manner, such as screwing; through this tube
the crank arm / passes.

page_text: 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
1 Forming the frame of a velocipede pedal in two halves to be attached together
by screwing or other suitable means that will permit separation when desired,
substantially as herein before described and shown.
2 In combination with a pedal frame made as claimed in proceeding claim, the
longitudinal connecting bars f and f, made in one with or screwed to such frame,
and outside screwed on bars f¹, and f³, all for the purposes hereinbefore described
and shown.
3 In velocipede pedals the arrangement of the reversed recessed bars f and f¹,
and fand fa to hold and secured india rubber, or other suitable material, as
described.