Improvements in Alarm Attachments for the Pedals of Bicycles and other Velocipedes.
Year: 1896

page_text: Date of Application, 12th Dec., 1896-Accepted, 23rd Jan., 1897
COMPLETE SPECIFICATION.
Improvements in Alarm Attachments for the Pedals of Bicycles
and other Velocipedes.
I, CHARLES ARTHUR ALLISON, of 52 Chancery Lane, London, in the County
of Middlesex, Patent Agent, do hereby declare the nature of this invention, which
has been communicated to me from abroad by James Wesley Kuykendall, Blanche
Lillie Kuykendall and James Wesley Roberts, all of Denver, in the County of
Arapahoe, State of Colorado, United States of America, and in what manner the
same is to be performed to be particularly described and ascertained in and by
the following statement:-
This in vention relates to improvements in alarm attachments for the pedals of
bicycles and other velocipedes and consists of the features hereinafter described
and claimed, all of which will be fully understood by reference to the accompanying
drawing in which is illustrated an embodiment thereof.
In this drawing
Fig. 1 is a perspective view of a bicycle pedal provided with my improvements.
Fig. 2 is a section taken through one end of the pedal.
Fig. 3 illustrates the end plate carrying the spring arms for actuating the alarm
mechanism.
Fig. 4 is a section taken on the line x-x, Fig. 2 looking toward the right.
Figs. 5 and 6 are perspective views illustrating details of construction.
Similar reference characters indicating corresponding parts in these views, let
the numeral 5 designate the pedal frame and 6 the pin thereof having an
extension 6. To the outer threaded extremity of this extension is applied the
gong 7 which is held in place a nut 8 screwed on the stem outside the gong.
Attached to the stem 6", and located within the gong, is an arm 9 having a pin 10
fast in its outer extremity. On this pin is fulcrumed a lever 12. having a stirrup
shaped extension 12". The pin 10 is surrounded by a coil spring 13, one
extremity of which bears against the part 12" of the lever, while the other extremity
engages the arm 9, which forms a stop therefor. The lever 12 is provided with
an arm 12 having a horizontal projection 12. On the stem or pin extension 6 is
loosely mounted a small star shaped wheel or cam 17 whose peripheral sprockets,
projections or cam faces, lie in the path of the projection 12d of the lever 12. The
cam wheel 17 is also provided with ratchet teeth 17, formed on one side thereof.
Between the arm 9 and the wheel 17 is located a coil spring 14 surrounding the
stem 6. This spring holds the wheel 17 against a shoulder on the stem.
To the end of the pedal frame adjacent the alarm mechanism is attached a flat
ring 15 carrying two spring arms 16. Each of these arms is provided with an
aperture 16 at one extremity, through which is passed a rivet which fastens the
arm to the ring 15. The part 16° of the arın 16 engages the outer surface of the
ring 15 and carries a projection 16d which normally occupies a position close to
the ratchet teeth 17" on the side of the wheel 17. The arm 16 is also provided
with an off-set 16, which throws the outer extremity 16 of the arm inwardly,
close to the side of the rider's foot, when in position on the pedal. The two arms 16
are oppositely located, whereby one is always in position for use, no matter which
side of the pedal the foot rests upon.
To operate the alarmı mechanism, it is only necessary to press the extremity 16

page_text: of the spring arm 16 sufficiently to cause the projection 164 to engage the ratchet
teeth 17 of the wheel 17. This engagement stops the movement of the wheel 17
with the pedal pin, and the peripheral projections of the wheel engage the arm 12°
of the lever 12 and cause the latter to turn on its fulcrum. During this movement
of the lever, the spring 13 is placed under tension and as soon as the lever arm is
released, the recoil of the spring throws the outer extremity of the lever forcibly
against the gong 7, sounding the alarm. This clapper lever strikes the gong as
often as the peripheral projection, or cam face, on the wheel 17 engages the inner
extremity of the lever. As soon as the pressure of the foot is withdrawn from
the arm 16, the latter returns to its normal position and the bell or gong
ceases to sound since the wheel 17 then rotates with the lever and pedal pin.
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 combination with the pedal, of suitable alarm mechanism mounted on the
pedal pin, and a movable device mounted on the pedal frame and adapted to operate
the alarm mechanism.
2. The combination with the pedal, of suitable alarm mechanism mounted on the
pedal pin and comprising a gong, a loose wheel having peripheral projections and
ratchet teeth, and a spring held lever having one arın adapted to engage the
periphery of said wheel, the other arm being located in suitable proximity to the
gong, and a movable device mounted on the pedal frame and adapted to engage
the ratchet teeth of the wheel, as and for the purpose set forth..
3. The combination with the pedal, of suitable alarm mechanism mounted on the
pedal pin and comprising a gong, a loose cam having ratchet teeth on one side, and
a spring held clapper lever having one arm adapted to engage the cam face, and a
movable device mounted on the pedal frame and adapted to engage the teeth of
the cam and lock the latter against rotation with the pedal pin.
4. The combination with the pedal, of suitable alarm mechanism mounted on the
pedal pin and comprising a gong, a loose cam and a spring held clapper lever
having one arm engaging the cam face, and a spring arm mounted on the
pedal frame and adapted to engage the cam and lock it against rotation with the
pedal pin.
5. The combination with the pedal, of a gong mounted on the pedal pin, and a
loose cam also mounted on said pin, an arm fast on the pedal pin, a spring held
clapper lever mounted on said arm and having one arm engaging the cam, and a
movable device mounted on the pedal frame and adapted to engage the cam and
lock it against rotation with the pedal pin.
Dated this 12th day of December 1806
ALLISON BROS.,
Agents for the Applicant.