Improved Combined Electric Bell and Battery.
Year: 1890

page_text: Date of Application, 18th Apr., 1890-Accepted, 28th Mar., 1891
COMPLETE
SPECIFICATION.
Improved Combined Electric Bell and Battery.
Communicated from abroad by the ACTIEN GESELLSCHAFT MIX & GRUEST, of
Berlin, in Germany.
I, CHRISTEN REES BONNÉ, of 41, Eastcheap, in the City of London,
Registered Patent Agent, 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:
The object of the present invention is the construction of an electric bell or
alarm apparatus, to be operated directly through the action of a galvanic
battery.
The several parts constituting the electric alarm apparatus according to this.
invention, (as hereinafter set forth in detail and illustrated by the figures upon the
annexed sheet of drawings) are so arranged that risk of failure in the proper action
of the alarm is reduced to a minimum, less space is occupied than usual, and the
mechanism with the galvanic battery being all included or contained in one
receptacle, it may be placed in any position conveniently, and easily removed as
desired. Any suitable form of electric or galvanic battery may be employed as
the source of the current by which the alarm is actuated.
In the drawings, Figs. 1 and 2 represent sectional views of a form of battery in
which the galvanic clement consists of a carbon electrode (K) surrounded by the
substance or fluid (E) contained in a zinc cell or cylinder (Z).
This battery is enclosed in a cylinder or case B, of metal, papier maché, or
other material. The cylinder or case B is made or fitted with a partition (D)
in the interior upon one side of which is situated the battery, and on the other side
the mechanism comprising the bell with its accessories and the electro magnet or
magnets through which the current is conveyed thereto.
That end of the case or cylinder B, in which the bell and its surrounding mechanism
are enclosed, forms as it were a sounding chamber or resonating adjunct to the bell
or gong (G) which is held in its place by a frame (F) shown in the drawings
(Fig. 4) as of tripod form in plan, the said frame being fastened by screws, or
similar means to the containing cylinder or case B, and having on its reverse side
the spindle S' screwed to pass through the circular opening in the centre of the
bell or gong, and a nut on the outside to fix it in place.
It will thus be seen that the bell or gong forms a kind of cap, to close up the
end of the case or cylinder B, only a small space or interval being left between
the edges of the bell and the cylinder or case.
The frame F also answers the purpose of a support or holder for the electro-
magnet or magnets (M) with their contact pieces N and springs T and binding
screws VV in connection.
The binding screws V V₁ fixed to the plate V2 and support X respectively have
the object of controlling or regulating the vibratory motion of the contact
springs TT through which the lever Y, terminating in the hammer or striker (Z.)
of the bell or gong G is operated, the cores N. N. of the magnet being at their
upper ends, in contact with the plate V2 underneath vibrating springs T. T.
The lever Y is attracted by the end or contact piece of magnet M, but the
magnetic attraction is interrupted by the mechanical action of the springs T. T;
which together possess a sufficient amount of force to counteract it.
The space through which the free ends of the springs T. T. moves is regulated
by the binding screws V. V₁, the screw V pressing downwards on the top spring, while
the screw V₁ presses upwards on the bottom spring. The end of the magnet passes

page_text: through the plate V2, and the said springs, in order to make contact with the arm
or lever Y.
At and around the outside extremity of carbon electrode K is wound a copper
band P. This is fastened to the terminal of conducting wire at L, and fixed firmly
in place by screw S. The conducting wire, extending from zinc cylinder or battery
cell to the bell or gong, is preferably a tinned copper wire. It passes through an
opening in exterior casing B, and is enclosed and protected outside by a tube of
vulcanite or insulating material R (as shown by Figs. 5 and 6).
A similar conducting wire establishes connection between the bell and the electric
circuit completed by the electro-magnets or magnet. This wire is also enclosed
in a vulcanite or insulating tube.
The tubes R. R serve as a means by which the cylindrical case may be prevented
from oscillation or sideways movement, when it is suspended by eyelet or opening O,
and resting against a wall or similar surface.
The apparatus may be reversed if preferred,-the bell or gong, with the electro-
magnets, and their accessories, being placed at the top, and the galvanic battery
at the bottom.
Having now particularly described and ascertained the nature of the said inven-
tion, and in what manner same is to be performed, I hereby declare that I claim
as my invention :-
The construction of the improved combined electric bell or battery substantially
as hereinbefore set forth and described and illustrated by the annexed sheet of
drawings, in which the battery composed of carbon electrode K, contained in zinc
cylinder Z is enclosed in case or cylinder B, one end of such case or cylinder B
holding by means of frame F the electro-magnets M, the conducting wires R. R.
partition D, and bell or gong G, being all arranged substantially in the manner
and for the purposes described.
Dated 14th day of April 1890.
C. R. BONNE & Co.,
Authorized Patent Agents, 41, Eastcheap, London, E.C.,
Agents for the Applicant.