Improvements in Signal Bell Apparatus, Chiefly Designed for use on Tramway and like Vehicles.
Year: 1899

page_text: Date of Application, 30th Dec., 4890
Complete Specification Left, 28th Sept., 1900-Accepted, 17th Nov., 1900
Complete Specification Left, 28th Sept., 1900-Accepted, 17th Nov., 1900
PROVISIONAL SPECIFICATION.
Improvements in Signal Bell Apparatus, Chiefly Designed for use on
Tramway and like Vehicles.
I, CARL JACOB EMIL FLECK, of 53, Woltmann Strasse, Hamburg, in the Empire
of Germany, Manufacturer, do hereby declare the nature of this invention to be
as follows:-
This invention relates to signal bells, which are more particularly designed
for use on street railway, tramway and like vehicles and comprises two bells
adapted to be sounded simultaneously, so that if one becomes damaged or broken
the other still remains effective.
According to my said invention the two bells are freely supported by a com-
mon screw-bolt and the hammers or strikers are constructed in the form of elbow-
levers fulcrumed side by side on a slotted bracket, and so arranged that their
weighted ball-shaped ends or heads will tend to keep the opposite or outer ends,
which project through the slotted bracket, together.
Pivoted to the aforesaid bracket is a double armed lever, one arm of which is
formed with a wedge-shaped beak adapted to be inserted between the said
outer ends of the elbow levers to operate the hammers, while the other end of
the said lever is adapted to be depressed or struck by a striker-rod or pin. By
pressing upon the head or end of the said striker rod or pin so as to operate
the double armed lever, the wedge-shaped end of the latter will be forced be-
tween the adjacent arms of the elbow levers and in this manner the hammers
will be caused to strike both bells simultaneously, the large bell being struck
on the outer side by one hammer while the small bell is struck on the inner side
by the second hammer. The cessation of the pressure upon the striker rod or
pin allows the hammers to return to their normal position.
In some cases, especially for example where the improved bell apparatus is
fixed in a vertical position, it is advantageous to effect a more positive return of
the elbow levers which may be accomplished by means of springs.
Instead of employing a double armed lever as above described I may so arrange
the bells that the striker rod may be caused to act directly upon the arms of the
elbow levers. For this purpose the said striker rod may be provided with a
wedge shaped end and with a suitable spring for returning the same to its in-
operative position.
Toted this 30th day of December 1899.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C.,
Agents for the Applicant.

page_text: Improvements in Signal Bell Apparatus, Chiefly Designed for use on
Tramway and like Vehicles.
I, CARL JACOB EMIL FLECK, of 53, Woltmann Strasse, Hamburg, in the Empire
of Germany, Manufacturer, 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 signal bells and more particularly
of that class which is designed for use on street railway, tramway and like
vehicles, and the object of the improvements is to provide means whereby such.
signal bells or signal devices are made more reliable and more effective in use;
and with this end in view the invention consists of a signal device comprising two
independent bells and a suitable clapper and plunger mechanism adapted to
sound the said bells simultaneously, so that if one becomes damaged or broken
the other still remains effective.
In the accompanying drawing Figure 1 is a side elevation (partly in section)
of the improved signal bell, the clapper and plunger mechanism being in the
position of rest; and Figure 2 is a similar view showing the parts in their
working position for sounding the bells.
Similar letters refer to similar parts throughout the views.
The two bells a and b independent of each other are freely suspended from a
common screw-bolt m supported by a suitable frame or base plate i. The
clappers or hammers c and d (one for each bell) are carried by bent-levers e¹
and fulcrumed side by side at 2 and 2 respectively in a slotted bracket e,
extending from a standard k of the base plate i. The clapper levers are so
arranged that their weighted ball-shaped ends or heads c and d respectively
will tend to keep the opposite or outer ends, which project through the slotted
bracket e, together, Figure 1.
Pivoted to the standard kat f¹ is a double armed lever f, one arm of which is
formed with a wedge-shaped beak 2 adapted to be thrown or moved by a blow
or shock between the said outer or free ends of the bent levers in order to part
the latter and to operate thereby the clappers. For imparting to the beak f
such a blow or shock a plunger sliding in a socket gl is arranged above the
other or free end of the lever f. By a blow upon the head h of the plunger g
the latter slides down and oscillates the double armed lever f; the wedge-shaped
end or beak f of the latter will thereby be forced between the adjacent arms of
the bent levers c¹ and and the clappers c and d thus be caused to strike and
sound both bells a and b simultaneously; in the construction shown the large
bell a, for instance, being struck on the outer side by the clapper d while the
small bell b is struck on the inner side by the other clapper c, as this will be
clearly understood from Figure 2. The blow and thereby the sounding of the
bells may be repeated as the plunger is again raised by the back swinging or
back oscillation of the lever f which is effected by the action of the weighted
clapper levers upon the wedge-shaped beak f
In some cases it may be advantageous to effect a more positive return of the
clapper levers into their position of rest which may be accomplished by means of
suitable springs. Instead of employing a double armed lever f, as above de-
scribed, I may so arrange the bells and clapper levers that the plunger may be
caused to act directly upon the said clapper levers. For this purpose the said
plunger may be provided with a wedge shaped end or beak and with a suitable

page_text: spring for returning the same to its inoperative position. As these modifications
are self-evident they need no further description and illustration.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the is to be performed, I declare that what
I claim is:
1. A signal or call bell comprising two concentrically arranged bells and
two tell crank hammer or clapper levers, thereby characterized, that the said
clapper levers having their pivots arranged side by side and near the rims of
the hells, are actuated by a lever provided with a wedge-shaped beak adapted to
be thrown by a blow between the suitably formed free ends of the clapper levers.
2. A signal or call bell comprising two concentrically arranged bells, bell crank
hammer or clapper levers c¹ d', the actuating lever f and the push-rod g, said
parts arranged for operation substantially as described.
110041. 1 of Cantamhon 1000
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C.,
Agents for the Applicant.