IMPROVEMENTS IN ELECTRIC BELL PUSHES CONTACT MAKERS AND INDICATORS
Year: 1885

page_text: I CHARLES BROTHERHOOD of Everton Villa, Chertsey Road Clifton, Bristol
(Engineer) do hereby declare the nature of my invention for IMPROVEMENTS IN
ELECTRIC BELL PUSHES CONTACT MAKERS AND INDICATORS to be as follows:-
Whereby it is possible to tell if a bell is ringing or not, or other mechanism (as
case may be) is operating or not at a distance from the Operator the indications
being given at the place of Contact to the Operator. The improvements consist
of-in combining with Electro or other magnets inserted in the circuit an armature
free to vibrate under the influence of such magnets on Contact being made and an
intermittent undulatory; or constant current being set up in the circuit, the said
armature being so arranged and fixed to any part of the apparatus, as to set up a
vibration, or series of vibrations which shall be communicated as a sense of such on
the finger of the Operator or on his sense of touch, something after the manner
indicated in previous patents secured by myself and one W. A. Leipner.
To the said armature-or not as may be preferred a small auxiliary attachment
and apparatus may be added to give a tapping sound by hammer like, or other
action on any part of the apparatus. This may be used for either single stroke or
multiple stroke bells or other apparatus such as used in telephone exchanges.
The auxiliary arrangement may be used alone if desired. The armature itself
may also be used as the tapping apparatus.
Luminous paint may or may not be used on the casing as desired.

page_text: Indicators.
I CHARLES BROTHERHOOD of Everton Villa Chertsey Road Clifton Bristol do
hereby declare the nature of my invention for "IMPROVEMENTS IN ELECTRIC BELL
and in what manner the same is to
PUSHES CONTACT MAKERS AND INDICATORS
be performed, to be particularly described and ascertained in and by the following
statement:-
The object of my present Invention is the providing improved and simple means
for indicating at the place where contact is made for completing an Electric circuit
for ringing an electric bell or for performing other operation whether the current
is properly established and consequently whether the ringing of the bell or other
operation which the current has to perform is duly effected.
According to my said Invention I employ electro or other magnets inserted in
the circuit after the same manner for example as that described in the Specification
of prior Patents granted to myself and William Adolph Leipner and numbered 9607
and 15875 of 1884 but I combine therewith an armature or armatures connected
to the push button or its equivalent so that the said armature or armatures
vibrates or vibrate under the influence of the said magnet or magnets when it is or
they are excited by the passing current on contact being made to complete the
electric circuit and the said armature or armatures is or are by the movement of
the button or its equivalent brought into the magnetic field of the magnet or
magnets the vibratory motion of the said armature or armatures being communi-
cated to the sense of touch of the operator of the contact and the whole being
arranged substantially as hereinafter described with reference to the accompanying
drawing.
Figure 1 is a plan with the knob removed and the case in section and Figure 2
an elevation partly in section of an instrument constructed according to my present
Invention. A is the case of the instrument and B. B is a horse shoe electro magnet
included in the circuit. C. C is a divided armature attached by the spring strip c
and screw c¹ to the knob D and also to the hereinafter mentioned strip e¹ which
acts as a spring. e' and e² are strips of metal between which contact is made by
pushing the knob D so as to complete the circuit of the electric current which
magnetises the cores of the magnets B and causes the armature C to vibrate and
transmit impulses or pulsations to the knob D so that they are felt by the operator―
Thus the operator knows that the circuit is completed and the current is properly
passing. Should he feel no vibrations or pulsations he will know that the current
is not passing and that the apparatus is out of order.
Figure 3 shews a modified construction wherein the armature C is connected to
the knob D through the intervention of a spring portion c³ shaped as shewn whilst
Figure 4 shews another modification wherein the knob D is formed with legs d
which bridge the armature C which is formed as part of the spring strip e'. The
other parts are like or analogous to those herein before described and shewn in
Figures 1 and 2 and are marked with the same letters of reference.

page_text: Figures 5 and 6 are Sections at right angles to cach other of another modification
of the Invention wherein B is the Electro-magnet included in the circuit: f is a
spring bar fastened to the bracket f' attached to the case of the instrument, the
said bar projecting at its outer end to outside the said case and there being
furnished with the knob or handle D. On the finger being applied to this knob or
handle and pressure being exerted in the direction of the arrow the circuit is
completed through the contacts or terminals e¹ and e² the terminal e¹ being on the
strip f. which is in communication through the bracket f' with the line wire and
the terminal e' being secured to the case and in connection with the other end of
the line wire coming from the magnet B.-C is the armature fixed on the bar f, as
shewn and in such a position that on the bar being moved so as to cause the
terminals e¹ and e³ to come in contact and complete the circuit, the said armature C,
will be within the magnetic field of the electro-magnet B.
The bar f, preferably slides on a guide plate g, fixed to the casing.-On contact
being made and the current passing, the armature vibrates or pulsates and the sense
of these vibrations or pulsations is transmitted through the bar f and knob or
handle D to the finger of the operator to indicate that the current is passing as
in the arrangements hereinbefore described.
This spring bar f, can be formed with a double contact and there may be
corresponding extra contact on the case as shewn in dotted lines so that the circuit
can be completed by moving the knob D in either direction.
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 claim is
In Electric bell pushes or contact makers and indicators the combination with an
Electro-magnet or Electro-magnets (in the circuit) of an armature or armatures so
connected to the button or part touched by the operator as to be free to vibrate
when the contact is made and the circuit is properly completed and the said
armature or armatures is or are by the same movement which completes the circuit
brought into the magnet field of the said magnet or magnets, all substantially as
and for the purpose hereinbefore described and the several arrangements of the
apparatus herein before described and illustrated in figures 1, and 2, 3, 4, 5 and 6 of
the accompanying drawings.