Improvement in Cycle Bells and other Alarms.
Year: 1897

page_text: PERCY VANDERVELL, 28, Aldridge Road Villas, Westbourne Park, London, W.,
Clerk, do hereby declare the nature of this invention to be as follows:-
The invention has for its object an improved construction of bells to act by
rotary motion in combination with a wheel of the vehicle, thereby producing a
continuous peal when desired also to act as a safety alarm.
I provide a bell struck by a revolving hammer, or hammers, actuated by a barrel,
or drum, to which rotary motion is communicated by the wheel.
Such barrel, or drum, to be forced into contact with the wheel by a lever or other
convenient system of gear. I also use a locking arrangement consisting of a screw
and key placed on the aforementioned lever or other convenient system of gear,
whereby the barrel or drum may be held permanently in contact with the driving
wheel,
When the barrel or drum is held by means of the locking screw on to the driving
wheel, the vehicle cannot be moved without revolving the barrel or drum and
thereby sounding the alarm.
Improvement in Cycle Bells and other Alarms.
I, PERCY VANDERVELL, of 28, Aldridge Road Villas, Westbourne Park, in the
County of London, Gentleman, 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:-
This invention has for its object an improved construction of bells to act by
rotary motion in combination with a wheel of the vehicle thereby producing a
continuous peal; when desired also to act as a safety alarm.
I describe the said invention with reference to the accompanying diagrams, pro-
viding four views of the same, and referring to the lettering thereon.
Fig. I. Gives a side elevation.
Fig. II. Gives a front elevation.
Fig. III. Gives a section of gong, barrel or drum, and attachment of the same.
Fig. IV. Gives a section of safety catch.
Referring to Fig. I a gong g pivotted at
"
"
is attached by a collar to the bar
at the top of the front forks. A bar with a telescopic joint for adjustment is
attached to the arm supporting the drum; such telescopic joint when adjusted to
[Price 8d.l

page_text: the machine for which it may be required is made unalterable by a bolt, rivet, or
other suitable fastening.
The bar d is actuated by a lever 7 fastened by a clamp to the handle bars and
pivotted at c, a movable joint being provided at f.
As shown in Fig. II a drum h is brought into contact with the wheel when the
bar d is depressed, which drum, receiving a rotary motion from the wheel actuates
by centrifugal force a hammer k (shown in Fig. III) which strikes against a pro-
jection m on the inner surface of the gong, thereby producing a continuous peal as
long as the drum is in contact with the rotating surface of the wheel. The
hammer only striking the projection in the gong once each revolution avoids a too
continuous recurrence of blows. I place the gong at one side of the wheel, and
at a sufficient distance from it to prevent the gong being covered with mud and
dust from said wheel.
I provide further a detachable clamp n on the handle bar at a suitable distance
from the clamp holding the lever, which clamp shown in Fig. IV, having a bifur-
cated attachment pp, with space large enough to admit the lever 1, allows the said
lever to be fastened in such a position that the drum is kept in contact with the
wheel. The lever being fastened in such position, as shown by the dotted lines ¹
in Fig. II, is kept so by means of a screw and pin attachment or other suitable
fastening, the pin r being passed through a hole in the lever, and screwed in that
position by means of a key, through a collar attached to the bifurcated part of the
clamp, the screw used for this purpose to be level with the head of the collar_s
when tightened. Thus the wheel of the machine cannot be moved without sound-
ing the gong, thereby providing a safety alarm.
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:
I. The combination of a bell acting by contact with a wheel of the machine with
a bar and lever attachment substantially as herein before set forth and described
and as illustrated in the accompanying drawings.
II. The use in connection with velocipedes of a lever and attachment for locking
the bell so as to maintain a drum in contact with the wheel, thus sounding the
bell when the wheel is moved, substantially as hereinbefore set forth and described,
and as illustrated in the accompanying drawings.
Dated this Fourteenth day of April 1898.