Improvements in Signal-bells.
Year: 1897

page_text: Date of Application, 4th Nov., 1897-Accepted, 8th Jan., 1898
COMPLETE SPECIFICATION.
Improvements in Signal-bells.
I, OSKAR ALBERT HEINRICH KÜHRT, Toolmaker, residing at Mehlis, Kingdom
of Prussia, Empire of Germany, do hereby declare the nature of this invention and
in what manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement:-
The object of the present improvement is to entirely do away with the clappers
in signal-bells, in order to thereby insure great reliability of action, as there can
be no wear of such parts which may cause an interruption.
The present invention consists in the arrangement of a tenon or nose n (n 1) at
the rim of the gong S (S1) (Figs. 1 and 2), or of a bulb of any shape n (n 1) on the
surface. (Figs. 3 and 4).
The sounding of the bell is caused tangentially in consequence of the rotation
of one of the gongs of which the tenon, or nose or bulb n (n 1) is bounding against
the tenon, or nose, or bulb of the other gong or against a firm, elastically yielding
body, and not as heretofore by a clapper acting vertically on the gong.
Figs. 1 and 2 of the accompanying drawing show this arrangement at a signal-
bell (table bell) provided with such gongs.
The upper gong S is turned with its shaft provided with pivots a a 1, by means of
a chamfered handle h and tooth gear z (Fig. 1).
The lower gong S1 which rests on the spring f, is vertically movable on the
edged part of the bearing v.
When the upper gong is turned the nose n n 1 are bounding against each other,
the lower gong yields because of its spring, and both tenons n and n 1 are sliding
over each other after the shock. Through this arrangement the gongs sound very
loud.
In this case
Figs. 3 and 4 show this arrangement at a double-sound cycle bell.
the tenons n n 1 are arranged at the inside or outside of the gongs respectively.
These bells are operated by the rim y connected by the frame with the turnable
gong S1 being pressed on the moving tyre of a cycle thus quickly revolving the
gongs, causing the tenons n n 1 to strike against each other and to thus sound
the bell.
Figs. 5 and 6 show the striking arrangement with only one gong.
In this the
nose a provided at one of the gongs strikes against a like nose n 1 fixed on a com-
paratively strong spring n 2. The sounding then takes place in exactly the same
way as in the arrangement of Figs. 1 and 2.
Having now particularly described and ascertained the nature of my said
Invention, and in what manner the same is to be performed, I declare that what I
daim is:-
1. In a signal bell the arrangement of a tenon-shaped nose tangentially at the
lower rim of the gong, (Figs. 1 and 2), substantially as and for the purpose set forth.
2. In a signal bell two analogous gongs arranged above each other in such way
that the one is turnable while the other is elastically tilting or movable so that

page_text: their noses (n and n 1) sound the gongs by striking each other, substantially as and
for the purpose set forth.
3. In single-gong bells the turnable gong striking with its nose against an
elastically yielding body, substantially as and for the purpose set forth.
4. Gongs arranged within each other, concentrically or covering each other, one
being turnable and the other elastically movable or tilting, and sounded by their
noses (nn 1) striking each other from inside or outside respectively, substantially
as and for the purpose set forth.
Doted this and L