Year: 1886

page_text: Date of Application, 15th Dec., 1886
Complete Left, 14th Sept., 1887.
Complete Accepted, 18th Oct., 1887.
I, CHARLES EBENEZER CHALLIS of 8 The Paragon, Hackney, London, Bellfounder
do hereby declare the nature of this invention to be as follows:-
My improved mechanism suitable for rapidly striking a dome or hemispherical bell
is constructed upon a frame and pillar, partly contained within the bell. The pillar
passes through the bell and carries an arm projecting over the bell, from which is
suspended a clapper for ringing the bell by the vibration of the velocipede or other
vehicle to which it is attached. This clapper may be silenced by drawing it up and
securing it in position against a pad on the arm. In order to rapidly strike a
warning in case of need, I arrange another clapper within the bell, actuated by a lever
in such a way that pressing and releasing the lever causes a series of rapid beats-To
effect this the clapper arm works upon a pin in the frame and strikes across from side
to side of bell by the lever engaging in grooves in the hammer arm, back and front of
its fulcrum alternately-The lever, also working upon a pin in the frame, has studs
upon it which engage in the grooves in the hammer arm-The first stud, in front of
the hammer fulcrum, throws the hammer to the left, and it strikes the bell; the
second stud, behind the hammer fulcrum, catches the hammer on the rebound, and
throws it to the right, and so on. On the return of the lever (which can be effected
by a spring) the action is repeated, but the studs before the hammer fulcrum throw
the hammer to the right, and those behind it, to the left. On the complete return of
the lever the hammer is locked in position-The lever can be actuated by means of a
projecting finger piece, or an attachment can be made to electric, pneumatic, or other
signal apparatus. By very slight modification this mechanism is suitable for any
open mouthed bell, and by placing it between two bells or domes it will ring them
both, striking them alternately.
Dated this 15th day of December 1902

page_text: I, CHARLES EBENEZER CHALLIS of 8 The Paragon, Hackney, London Bellfounder
do hereby declare the nature of my invention for IMPROVED MECHANISM FOR
RINGING ALARM BELLS and in what manner the same is to be performed, to be
particularly described and ascertained in and by the following statement :-
My improved mechanism for ringing alarm bells is constructed upon a frame partly
contained within the bell or bells. On this frame a hammer, with a groove back
& front of its fulcrum, is pivotted. A lever having a series of studs to engage in the
grooves in the hammer is also pivotted on the frame. When the lever is pulled the
studs engage in the grooves in hammer back & front of its pivot alternately
the hammer is thrown from side to side & strikes the bell. On the lever being
returned by a spring the action is repeated.
When required an arm is put over the bell with a clapper depending from it by a
chain in such a manner that the vibration of the vehicle causes the clapper to swing
& strike the bell, this can be stopped by drawing up the chain & placing the rubber
ring at its end upon a stud provided for that purpose. A rubber pad in the boss of
arm prevents the clapper jarring.
In the accompanying drawings Figs. 1. 2. 3. A is the frame with clamp for
attaching to velocipede B is the hammer, C is the stop or shoulder on hammer, D is
the pivot of hammer, E & F are the grooves in hammer, G is the lever & finger piece
H is the pivot of lever, I. K. L. M. are the studs upon lever, N is the spring, is
the bell, P is the screw for fixing bell to frame, Q&R show where the hammer
strikes the bell.
In Fig. 4. A is the arm, B is the boss enclosing rubber pad, C is the stud, D is the
clapper, E is the chain, F is the rubber ring.
The action is as follows:-When the lever is pulled the stud K engages in the
groove E & throws the hammer to the left striking the bell at Q as the hammer
rebounds the stud L engages the groove F & throws the hammer to the right, striking
the bell at R; M engages in E & throws the hammer back to Q. As the lever is
returned by the spring N the striking is repeated as follows: M throws the hammer
to R, L throws it to Q, K throws it back to R but does not quite escape from the
groove E as the stud I catches against the shoulder C, locking the hammer in position
& thus preventing any rattle when the bell is shaken.
If a larger number of lighter knocks is required to the same motion of lever this
may be accomplished by increasing the width of hammer & reducing the size of
grooves, at the same time increasing the number of studs on lever & putting them
closer together.
When two bells are used the hammer strikes them alternately. The mechanism is
adapted to bells. of other shape than that shown, by a slight alteration in shape of
frame. The lever can be moved by the finger or can be attached to electric, pneumatic
or other signal apparatus.

page_text: I am aware that pneumatic & velocipede bells are now made with mechanism
somewhat similar to a common clock escapement, in which a toothed wheel or
segment actuates a pallet or escapement block, which carries the hammer at the end
of a piece of spring wire; but these do not swing the hammer across from side to
side, consequently the knocks are very light, & when the escapement block carries two
hammers to strike opposite sides of the bell, the backward momentum of one hammer
holds the other upon the bell & prevents it rebounding, this causes jarring.
Having now particularly described & ascertained the nature of my said invention
& in what manner the same is to be performed, I declare that what I claim is :-
1. The combination of the lever G with the hammer B, constructed in the manner
& for the purpose described.
2. A hammer actuated from opposite sides of its pivot alternately substantially as
set forth & shown.
3. The arrangement of studs upon lever for engaging the hammer upon opposite
sides of its pivot alternately substantially as set forth & shown.
4. The method in which the hammer is locked in position by the lever substantially
as set forth & shown.
5. An arm enclosing a rubber cushion, with a clapper depending by a chain outside
the bell, constructed in the manner & for the purpose described.
Dated this 14th day of September 1887.
C. E. CHALLIS.

page_text: Date of Application, 15th Dec., 1886.
Complete Left, 14th Sept., 1887
Complete Accepted, 14th Oct., 1887.
Improvements in Stop Bells and Attachments.
I, CHARLES EBENEZER CHALLIS, of 8, The Paragon, Hackney, London, Bellfounder,
do hereby declare the nature of this invention to be as follows:-
Spherical or Rumble Bells can be properly sounded only by a ball or clapper
rolling or jumping about within them and not by striking. To obtain violent
agitation I affix the bell to a coiled wire spring which is attached to the vehicle by a
suitable clamp, the vibration of travelling is then intensified and transmitted to the
bell. A lever is arranged so that the bell may be agitated by the finger when the
vibration is otherwise insufficient.
For obtaining silence the clapper has a chain and rubber pad attached to it,
the chain is then carried through a hole in the upper part of bell and fixed to an arm
which works upon the collar or crown of bell, a spring keeps the arm in position.
By turning the arm the clapper is drawn tightly against the pad inside the bell.
The collar and arm are so shaped as to prevent the weight of clapper pulling the arm
back, can, however, be returned easily by the finger.
By slight modification this invention is adapted to bells of small size made in a
variety of shapes.
1000

page_text: I, CHARLES EBENEZER CHALLIS of 8 The Paragon, Hackney, London Bellfounder,
do hereby declare the nature of my invention for IMPROVEMENTS IN STOP
BELLS & ATTACHMENTS and in what manner the same is to be performed, to be
particularly described and ascertained in and by the following statement:-
Spherical or Rumble bells can only be sounded properly by a ball or clapper
rolling or jumping about within them & not by striking. The vibration of the
vehicle when travelling is often not sufficient to ring the bell loudly.
I use a coiled wire spring preferably of conical shape to increase & transmit the
vibration to the bell. The spring at its inner end is fastened to the shank of bell by
a nut & at its outer end is fixed to a metal clamp, by which it is attached to the vehicle.
To stop or silence the bell when required, the ball has a chain to it. The chain is
passed through an india rubber pad & then through a hole in the upper part of bell,
the outer end being affixed to an arm which turns upon the cap or crown of bell.
The arm is held in position around crown of bell by means of a spring attached at its
ends to two lugs upon the arm. This arrangement keeps the arm up taut & allows it
to be moved around the crown when required. When the bell is ringing the arm
projects over the hole through which the chain passes, on the arm being moved round
it pulls up the chain & ball & so stops the ringing.
To prevent the arm being returned by the weight of ball when in the "silent"
position, the crown of bell & the arm have flats or other suitable surfaces upon
them, these are not, however sufficient to prevent the arm being returned by the
finger.
The bell can be secured to a strap or other convenient means of attachment by the
nut on the screwed shank of bell.
By slight modification this invention is adapted to bells of small size made in a
variety of shapes.
In the accompanying drawings Figs. 1 & 2. A is the bell with ball inside, B is
the chain C. is the moveable arm, D is the helical spring upon the arm E is the flat
upon crown of bell F is the position in which arm is put to "stop" the bell, G is the
position of arm when bell is ringing, H is the coiled wire spring carrying bell, I is

page_text: one form of clamp for attaching to velocipede K & L are the points at which the
spring H. is fixed to clamp.
Having now particularly described & ascertained the nature of my said invention
& in what manner the same is to be performed, I declare that what I claim is:
--
1. A lever or arm & a spring working upon the crown of bell in the manner & for
the purpose described.
2. The combination of a coiled wire spring & metal clamp constructed in the
manner & for the purpose described.