An Improved Method of and Apparatus for Working Alarm Bells for Cycles and other like Vehicles.
Year: 1891

page_text: Date of Application, 14th Feb., 1891-Accepted, 21st Mar., 1891
COMPLETE SPECIFICATION.
An Improved Method of and Apparatus for Working Alarm Bells
for Cycles and other like Vehicles.
I, GEORGE BARKER BOWLES, of Trajan Street East, South Shields, in the
County of Durham, Draughtsman, 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 :-
My invention relates to an improved method of and apparatus for working alarm
bells for cycles and other like vehicles.
In order that my invention and the manner of operating the same may be fully
understood I have appended the accompanying sheets of drawings of which Figures 1
and 2 show respectively a general side and end or front elevation. Figure 3 is a
back elevation Figure 4 an elevation showing bell mechanism with gong removed
and Figure an end view of bell mechanism partly in section.
Similar letters of reference indicate corresponding parts in the drawings throughout
the following description.
In carrying any invention into effect I use or provide the following working
parts, viz. an ordinary gong or bell a mounted on spindle a¹ of face plate a² attached
as shown in drawings to disc a³ fitted on end of prolongation at of double eyed
bracket a which is hung at a to bracket a suitably attached as shown in Fig. I to
the machine.
b is a small wheel having a tire made of any suitable material but preferably
of india rubber mounted on spindle and on the opposite end of this spindle the two
armed lever 3 is secured and arranged so that its arms may engage with the lever b
mounted on spindle around which is coiled the spring 66 in such a manner that
the hammer may be kept in position for striking the bell a as indicated in the
drawings.
c is a push bar attached at one end to lug e¹ of bracket ab and at the other end to
the adjustable stop c² on rod c³ which is actuated by any suitable motion preferably
from the handle or handles of the machine the spring c being used to return the
motion of the push bar.
The operation of my invention is such that when the rider desires to ring his
aların bell, he simply presses a lever suitably mounted on or near the machine
handles which has the effect of depressing bar 3 and with it push bar e against
spring c thus causing the tire of wheel mounted as above described to make
contact with the tire of the machine wheel (shown in dot and pick lines in Figs. 1
and 2). This of course causes arms to revolve and actuate lever against
spring so as to make hammer ring the bell. In practice the ringing thus
produced is practically continuous as long as tire of wheel is in contact with tire
of machine wheel but when the contact is broken the bell is silent.
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 of parts consisting of a small wheel arranged in a hinged
bracket mounted on the frame of the machine in such a manner that contact between
the said wheel and the periphery of the cycle wheel can be made or broken at will
for the purpose of operating the hammer of an alarm bell substantially as herein
described and illustrated in the accompanying drawings.

page_text: 2. The general arrangement or combination of parts constituting the improved
alarm bell mechanism for cycles and similar vehicles substantially as herein
set forth.
Dated this 13th day of February 1891.
A. CRAWHALL CHAPMAN,
3, St. Nicholas' Buildings, Newcastle-on-Tyne, Patent Agent for Applicant.