Improvements in Bells, Especially Applicable to Velocipedes.
Year: 1889

page_text: Date of Application, 29th Nov., 1889
Complete Specification Loft 1st Mar 1890 Accepted. 26th Apr.. 1890
PROVISIONAL SPECIFICATION.
Improvements in Bells, Especially Applicable to Velocipedes.
I, FREDERIC COOKE, of 328 Upper Street, Islington, London, N., do hereby declare
the nature of this invention to be as follows:-
In this bell I employ the usual framework which carries the dome in the ordinary
manner, upon the frame work is pivotted a quadrant provided with a tail or projection
upon which the finger of the operator can be placed; the quadrant is controlled by a
spring so as always to return to its normal position or starting point. The quadrant
is toothed and engages with a pinion upon a spindle carried in the frame work and
with which are connected one or more but preferably two clappers. These clappers
may be connected with the pinion or spindle in any desired manner but I prefer to
connect them by means of spring arms so arranged that as they revolve the clappers
may fly out centrifugally and thus come in contact with the bell; they may however
be arranged so as to reach the bell in their ordinary position without the effect of
the centrifugal motion. Instead of hanging the clappers as desired upon spring arms
they may if desired be hung upon rigid arms pivotted to the pinion or spindle and
either spring controlled or not as desired.
The inside of the dome or gong of the bell may be provided with one or more
projections corrugations or equivalent upon or against which the clapper or clappers
strike. It will be seen that by this arrangement of the interior of the dome a single
clapper may be caused to produce a number of blows upon the gong, and that the
said clapper need be provided with but little spring.
Dated this 29th day of November 1889.
W. P. THOMPSON & BOULT,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Bells, Especially Applicable to Velocipedes.
1, FREDERIO COOKE, of 328 Upper Street, Islington, London N., 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:-
In this bell which though particularly applicable for velocipedes may also be used
for other purposes, I employ the usual framework which carries the dome in the
ordinary manner and upon the framework is pivoted a quadrant provided with a tail
.or projection upon which the finger of the operator can be placed; the quadrant is
controlled by a spring so as always to return to its normal position or starting point.
The quadrant is toothed and engages with a pinion upon a spindle carried in the
framework and with which are connected one or more but preferably two clappers.
These clappers may be connected with the pinion or spindle in any desired manner
but I prefer to connect them by means of spring arms so arranged that as they revolve
the clappers may fly out centrifugally and thus come in contact with the bell; they
may however be arranged so as to reach the bell in their ordinary position without
the effect of the centrifugal motion. Instead of hanging the clappers as described
upon spring arms they may if desired be hung upon rigid arms pivoted to the pinion
or spindle and either spring controlled or not as desired.
In figures 1 and 2 of the accompanying drawings I have represented a double or
duplex bell constructed according to this invention, Fig. 1 being a plan with one of

page_text: the domes or bells removed and fig. 2 a view with the bells in section, Figs. 3 and 4
are respectively a vertical section and a plan showing an alternative form of clapper-
carrying arm applied to a single bell.
Like letters indicate like parts throughout the drawings.
Referring to figs. 1 and 2, the framework of the bell may consist of a plate A and
standards A on the latter of which the domes or bells B may be secured by nuts A'
or equivalent means. C is the quadrant pivoted on the stud C¹ secured to the plate A
and provided with the tail or projection C2 upon which the operator may place his
finger for ringing the bell and provided also with teeth C¹ figure 1 which gear with
the pinion D. C is a slot in the quadrant where it passes over the standard A². The
pinion D and the spindle D' which it is to operate as shown in fig. 2 may conveniently
be formed out of pinion wire. The spindle D¹ is supported in its proper vertical
position by means of a bracket E and, in the case of a duplex bell as shown in
figs. 1 and 2 passes through to the under side of the plate A and has secured to each
of its ends a block or head D to which are attached the coiled spring or equivalent
arms D³ to the free end of each of which is secured a clapper D* which when the
spindle is revolved flies out after the manner of a governor ball.
F is a spring one end of which is connected to the stud C¹ and the other to the
pin C secured to the quadrant C in such manner as to tend always to move the
quadrant to the normal position in which it is shown in figure 1.
Where two sets of clappers are provided as in figs. 1 and 2 they are preferably
arranged so that the strokes of one set will alternate with those of the other set.
To ring the before described bell the tail or finger piece (2 is moved by the operator
so that the quadrant will move in the direction indicated by the arrow in fig. 1. The
clappers D which may previously have been out of contact with the bells B are then
rotated and by centrifugal force will be thrown outwards and in their rotation will
strike and sound the bell. As soon as the operator releases the tail C³ the spring F
will return the quadrant C to its normal position and in so doing will rotate the
spindle D' in the reverse direction and again cause the clappers to fly outwards and
strike the bells. The ringing of the bell may, by thus alternately moving the
quadrant C backwards and forwards be kept up practically without intermission for
any desired length of time.
Instead of hanging the clappers D₁ upon spring arms such as D³ they may if
desired be hung on rigid arms pivoted to the spindle D' and either spring controlled
or not as desired.
In the arrangement represented in figs. 3 and 4 there is shown only one clapper D
but two or more may be used in each bell. Each of these clappers is secured on the
outer end of a flexible wire arm D' which is rendered still more flexible by having
formed in it a loop or coil d. The dome or bell may be formed with one or more
internally projecting lugs b against which the clappers will strike for sounding the
bell. Both of these modified arrangements are applicable to the bell represented in
figures 1 and 2.
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. In a bell such as described the combination with a toothed quadrant such as C
gearing with a pinion D on a spindle D' of a pair of clappers D' hung like governor
balls and so mounted on the spindle that when rotated they will fly outwards by
centrifugal force substantially as and for the purpose herein described and illustrated
in figures 1 and 2 of the accompanying drawings.
2. In a bell such as described the combination on the same spindle of two sets of
clappers arranged like governor balls and so as to fly out by centrifugal force and set
across each other so as to strike alternately substantially as described and illustrated
in fig. 2 of the accompanying drawings.
3. In a bell such as described a clapper arm such as D³ having a loop such as d

page_text: whereby the clapper is enabled to fly outwards by centrifugal force when rotated
substantially as described and illustrated in figures 3 and 4 of the accompanying
drawings.
4. The arrangement and combination of parts constituting the complete bell
substantially as described and illustrated in the accompanying drawings.
Dated this 28th dow of February 1890.
FREDERIC COOKE.
W. P. Thompson & Boult,
Agents for the Applicant.