Improvements in Bells or Alarms for Cycles
Year: 1895

page_text: Date of Application, 6th May, 1895
Complete Specification Left, 6th Feb, 1896-Accepted, 7th Mar, 1896
I, ISAAC HARDY PARSONS, of 21, Narborough Road, Leicester, in the County
of Leicester, Electrician, do hereby declare the nature of this invention to be as
follows
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This invention relates to improvements in bells or alarms for cycles, whereby the
bell or alarm is sounded from the motion of one of the wheels of the machine as
hereinafter more particularly described
According to my invention I construct the alarm of a gong, bell, drum or the like
arranged to be struck by a hammer fixed to a disc on a spindle adapted to be
revolved by a wheel of the cycle by means of a friction wheel on the spindle
The friction wheel is normally held out of contact with the wheel of the machine
and, when it is desired to sound the bell or alarm, the said friction wheel is forced
against the wheel of the machine and this is advantageously effected by means of
a pneumatic bag or like device inflated or operated by means of a rubber ball placed
in a position convenient to the hand of the rider, or the friction wheel may be
brought into contact with the wheel of the machine and withdrawn therefrom
by any other suitable means
The apparatus is attached to the machine in a suitable position and in any well
known manner
Dated the 6th day of May 1805
Improvements in Bells or Alarms for Cycles
I, ISAAC HARDY PARSONS, of 21, Narborough Road, Leicester, in the County
of Leicester, Electrician, 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 improvements in bells or alarms for cycles and other
vehicles and auto-cars, whereby the bell or alarm is sounded from one of the wheels
of the vehicle or machine as hereinafter more particularly described
According to my invention I construct the alarm of a gong, bell, drum or the
like arranged to be struck by a hammer fixed to a disc on a spindle adapted to be
revolved by a wheel of the cycle or other vehicle or machine by means of a friction
wheel on the spindle
The friction wheel is normally held out of contact with the wheel of the vehicle
or machine and, when it is desired to sound the bell or alarm, the said friction
wheel is forced against the said wheel of the vehicle or machine and this 18
advantageously effected by means of a pneumatic bag or like device inflated or
operated by means of a rubber ball placed in a position convenient to the hand of
D

page_text: the rider, or the friction wheel may be brought into contact with the wheel of
the vehicle or machine and withdrawn therefrom by any other suitable means
The apparatus is attached to the machine in a suitable position and in any well
known manner
To enable my invention to be fully understood I will describe the same by
reference to the accompanying diawings, in which
-
Figure 1 is a sectional elevation of my improved bell
Figure 2 is a section on the line 2-2, Figure 1, shewing some of the parts in
slightly different position
Figure 3 is a sectional plan shewing the bell arranged in conjunction with a
wheel tyre, and,
Figure 4 is a side elevation of the same
a is the gong of the bell which is carried by a bracket 6 adapted to be fixed to
some suitable part of the machine, say, for instance, to the steering fork (which is
indicated by the letter e in Figures 3 and 4) by means of a clip d e is the hammer
01 clapper of the bell fixed to a shaft flotating in suitable bearings in the bracket b
and having its end portion pivotally mounted so that it will fly out under centrifugal
action and strike a projection 9 on the inside of the gong in a well known manner as
indicated by the dotted lines in Figure 2
is the friction wheel also mounted on the spindle and serving when in contact
with the wheel tyre (which in the drawing is indicated by the letter 2) to
impart the necessary movement to the hammer to cause the latter to strike the
gong
Any suitable means may be employed for bringing the friction wheel h into
contact with the wheel tyre, an arrangement, however, which I have found to give
good results is as follows -A box, carried upon the bracket b and through which
the shaft passes, has arranged within it on one side of the said shaft a spring k of
sufficient strength to normally hold the friction wheel h out of contact with the
wheel tyre, and on the other side of the shaft is arranged an air-bag or piston !
connected by a flexible tube m with a ball n in such a manner that when the said
ball n 18 pressed, the piston 7 will be expanded and move the shaft f against the
pressure of the spring k, so as to bring the friction wheel h into contact with
the wheel tyre whereby as the latter rotates the hammer will be caused to strike
the gong
It will be understood that immediately the pressure upon the ball n is released,
the spring k will react and move the friction wheel out of contact with the wheel
tyre
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
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1 A bell or alarm adapted to be sounded by the rotation of a wheel which can
be moved into and out of contact with one of the wheels of the vehicle to which
the bell is applied, substantially as described
2 A bell or alarm adapted to be sounded through the medium of a friction wheel
mounted upon the hammer shaft, the said wheel being arranged in conjunction with
an air-piston whereby it may be moved into contact with one of the wheels of the
vehicle to which the bell is applied, substantially as described
3 The manufacture and use of the improved bell hereinbefore described and
G F REDFERN & Co,
4, South Street, Finsbury, London, Agents for the Applicant