Year: 1888

page_text: We, WEBSTER GILLETT, Electrician, and GEORGE HASELTINE, Counsellor at Law,
both of 247 Broadway in the City and State of New York, United States of America
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 said invention relates to mechanism for generating electrical currents for
ringing bells and for other like purposes. The mechanism dispenses with gearing
and is simple, inexpensive and efficient.
The said generator is illustrated in the accompanying drawings making a part of
this specification in which,-
Figure 1 is a plan of the generator and
Figure 2 a vertical central section of the same.
A is the frame which forms an armature and supports metal cross-bars B. These
cross-bars are attached by screws to said frame which has segmental projections J,
extending toward the centre also lugs I by which the generator is secured to any
suitable base. The magnet C carries coils D of insulated wire connected together in
the usual manner upon their extremities and are fastened together by screws a.
trunnions from the centre of the outside magnet pass through cross-bars B.
A handle F is attached to the outer trunnion by which the magnet and coils D arc
revolved within frame A.
The
A wire G passes from coils D through the main trunnion and is insulated therefrom
in the usual manner and forms connection with spring H which is insulated from
and is attached to cross bar B.
The
The handle F is turned to operate the generator and thereby the permanent
magnets C with their coils D are revolved passing the segmental portions J of frame A
in close proximity but not in contact. As said coils approach segments J the
magnetism is diminished and as they recede from the segments in their rotation
the magnetism is augmented, thereby creating currents in the helices or coils D.
wire forming the coil is attached at one end to the permanent magnet by means of
screw a. The other end of the wire marked G is curved out through the inner
trunnion E to spring H. It will be observed that this end of the wire is insulated
from other portions of the generator by means of spring H and can be extended from
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page_text: said spring in any direction. When the wire is attached to any portion of frame A
and also to spring H a circuit is established in the usual manner and a magneto-
electric current can be transmitted to a bell or any desired object.
The frame A is constructed by preference of cast iron and three or more ordinary
magnets are used for the purpose of compounding the magnetism. The magnets are
by preference revolved, but the magnets may be made stationary and the armature or
frame be made to revolve.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what
we claim is ;-
First. In a magneto-electric generator an armature of ring form provided with
segmental projections J substantially as herein set forth.
Second. In a magneto-electric generator a permanent magnet with coils of wire
wound upon its extremities in combination with an armature made in ring form and
provided with segmental projections substantially as herein set forth.
Third. In a magneto-electric generator the combination of an armature A provided
with segmental projections J, cross-bar B, permanent magnet C with coils of wire D
constructed to revolve, the insulated wire G and spring H, substantially as herein set
forth.
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