Year: 1894

page_text: Date of Application, 21st July, 1894
Complete Specification Left, 19th Apr., 1895-Accepted, 24th May, 1895
improvещеню
I, HARRY LUCAS, of Tom Bowling Lamp Works, Little King Street, in the
City of Birmingham, Lamp Manufacturer, do hereby declare the nature of this
invention to be as follows:-
This invention relates to pedals for bicycles and other cycles, my object being to
construct a pedal of fewer parts, and in a more convenient form than those at
present in ordinary and general use.
In carrying my invention into effect I stamp or form the pedal frame, consisting
of the two bars or treads and the outer end of the pedal, from one strip or piece of
metal preferably steel. I prefer to make the outer end of the pedal frame semi-
circular, so that the frame has a U shaped, configuration giving both strength and
a good appearance. The frame has projections at its open, end, and at its circular
or closed end, to prevent the foot of the cyclist from slipping side ways during
riding. The frame is connected at or near its open end with a side plate, and
I preferably make this connection by means of lugs or cars formed or turned
inwards from the frame, the side plate being attached thereto by means of small
screws or studs. By this method of connection I am enabled to readily and
securely fix together the two parts which form the complete frame, after electro-
plating without risk of scratching or impairing their surfaces.
'be
The pedal pin cover tube is screwed into the inner side plate at one end, and its'
other end is screwed through the semi-circular or closed end of the pedal frame,
and on this outer end I screw a cap which is shaped internally to form the outer
ball race of the pedal. Or by another method this cap and ball race may
screwed into the closed end of the pedal frame itself, the end of the tube cover
being then screwed either into or onto it. The extreme end of the pedal pin is
suitably shaped or coned to form the outer bearing with the balls inside the cup.
The inner or main ball race adjacent to the crank of the cycle, is provided by
grooving the pedal pin at a suitable distance from its fixture with the crank, by
forming a cone on the interior surface of a gland-like screw or cover having a screw
cut upon its outer surface for screwing into a like thread cut upon the interior of
the side plate boss.
The adjustment of the balls is effected by tightening or slackening the gland-like
screw or cover, as required, the one operation serving to adjust both the main and
the outer bearings of the pedal.
I employ my improved pedal frame in conjunction with other methods of ball
bearing adjustment than the method, hereinbefore described, making such modi
fications as may be necessary to suit particular requirements without departing from
the essential features of my invention.
The pedal can be made either of the rat trap pattern or with blocks or strips of
india-rubber, felt, or other material fixed to the frame as desired."
•
MARKS & CLERK,'
18, Southampton Buildings, London, WC., and
13, Temple Street, Birmingham, Agents for the Applicant

page_text: COMT DETE DI BOTICATION.
Improvements in Cycle Pedals.
I, HARRY LUCAS, of Tom Bowling Lamp Works, Little King Street, in the
City of Birmingham, Lamp Manufacturer, 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 relates to pedals for bicycles and other cycles, my object being to
construct a pedal of fewer parts and in a more convenient form than those at
present in ordinary and general use.
In the accompanying sheet of explanatory drawings to be hereinafter
referred to:-
Figure 1 is a front elevation, Figure 2 a side or end elevation, and Figure 3 a
plan, representing one convenient form of my improved pedal, Figure 4 being a
plan of the detachable side plate having the pedal pin cover tube securely connected
thereto.
Figures 5 and 6 represent in front elevation and plan respectively my improved
pedal arranged with one inner adjustment for both the inner and outer bearings of
the pedal pin.
Figures 7 and 8 illustrate the pedal as fitted with india-rubber treads.
Figure 9 is a sectional elevation representing the method of adjusting the ball
bearings by means of the one inner gland or cover.
The same reference letters in the different views indicate the same parts.
In carrying my invention into effect I stamp or form the pedal frame consisting
of the front bars or treads A A¹ and the outer end A2 from one strip or piece of
metal preferably steel. I prefer to make the outer end of the pedal frame semi-
circular so that the frame has a U shaped configuration giving both strength and a
good appearance. The frame has projections such as A at its open end and at its
circular or closed end, to prevent the foot of the cyclist from slipping side ways
during riding. The frame is connected at or near its open end with a side or end
plate B and I preferably make this connection by means of lugs or ears, a, formed
or turned inwards from the frame, the side plate being attached thereto by means
of small screws or studs. By this method of connection I am enabled to readily
and securely fix. together the two parts which form the complete frame, after
electro-plating without the risk of scratching or impairing their surfaces.
The projections or foot guards A³ at the open or inner end of the pedal frame are
formed and arranged beyond or on the crank side of the inner side or end plate B,
thus providing sufficient space to permit of the ready and convenient attachment of
the pedal pin to the crank, and to allow for the adjustment of the bearings from the
inner end.
The pedal pin cover tube C is fitted within the inner plate B at one end, the
other end entering the cup or ball race C¹ which is screwed within the semi-circular
or closed end A' of the pedal frame. On the outer end of the cup or ball race C',
I screw the protecting cap D. Adjustment of both the inner ball bearing within
the end plate B, and the outer ball bearing of the pedal pin, is effected by the cone
and nut on the protecting end of the pin, protected by the cap D.
By another method of construction I dispense with the outer cap D and secure
the cap E (Figure 6) within the closed end of the pedal frame itself, the end of the
tube cover being then screwed either into or on to it. The extreme end of the
pedal pin is suitably shaped or coned to form the outer bearing with the balls inside
the cup E.
The inner or main ball race adjacent to the crank of the cycle, is provided by
grooving the pedal pin at a suitable distance from its fixture with the crank and by
forming a cone on the interior surface of a gland-like screw or cover F (Figures 5 6,

page_text: and 9) having a screw thread cut upon its outer surface for screwing into a like
thread cut upon the interior of the side or end plate boss F¹.
The adjustment of the balls at each end of the pedal is effected by tightening or
slackening the gland-like screw or cover F as required, the one operation serving
to adjust both the main and the outer bearings of the pedal. The gland or cover F
is locked in position after adjustment, by means of the small screw or stud f, having
a conical or suitably shaped head for pressing a split piece of the boss F¹ tightly
against the gland F.
I employ my improved pedal frame in conjunction with other methods of ball
bearing adjustment than the method herein before described, making such modi-
fications as may be necessary to suit particular requirements without departing from
the essential features of my invention.
I sometimes employ blocks or strips of india-rubber such as G (Figures 7 and 8)
or of felt or other suitable material to form an efficient tread, and secure the same
to my improved pedal by means of bolts and nuts with clamping plates, or by other
convenient methods of attachment.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. The improved cycle pedal frame having treads and outer end formed from one
piece or strip of metal, with projecting foot guards beyond the inner side or end
plate substantially as herein before described and as illustrated in the accompanying
drawings.
2. The construction of a cycle pedal frame from one strip or piece of steel or
other metal stamped or formed to the required shape, having lugs or ears for the
attachment of the side or end plate, and provided with projecting foot guards,
substantially as hereinbefore described and as illustrated in the accompanying
drawings.
3. In cycle pedals the use of a ball race gland or cover in combination with the
inner end or side plate of the pedal frame substantially as and for the purposes
hereinbefore described and as illustrated in the accompanying drawings.
4. In a cycle pedal the combination of a gland or cover having its interior
surface coned for the reception of the balls of the inner or main bearing and
arranged for the adjustment of both the inner and outer bearings, with a pedal
frame constructed from one piece or strip of metal and having projecting foot-
guards substantially as hereinbefore described and as illustrated in the accompanying
drawings.
5. The combination of a cycle pedal frame constructed from one strip of steel or
other metal having projecting foot guards and a connecting side or end plate,
with treads consisting of blocks or strips of india-rubber or other material,
substantially as herein before described and as illustrated in the accompanying
drawings.
6. The improved cycle pedal having projecting foot guards and constructed and
arranged substantially as and for the purposes herein described.
Dad thin 10th the of Ail 1905
MARKS & CLERK,
18, Southampton Buildings, London, W.C., and
13, Temple Street, Birmingham, Agents for the Applicant.