A NEW OR IMPROVED COMBINATION OF TELEPHONIC APPARATUS AND ELECTRIC BELLS
Year: 1885

page_text: "
I JOHN HENRY JOHNSON of 47 Lincolns Inn Fields in the County of Middlesex
Gentleman do hereby declare the nature of the said Invention for "A NEW OR
IMPROVED COMBINATION OF TELEPHONIC APPARATUS AND ELECTRIC BELLS which
Invention has been communicated to me from abroad by La Societé P. Barbier
and Cio of Paris in the Republic of France to be as follows:-
This Invention has for its object a new or improved combination of telephonic
apparatus and electric bells whereby the empty spaces in the boxes or cases of the
pushes knobs or buttons used for working electric bells are utilized by placing
therein telephonic apparatus and thereby enabling the wires or conductors to be
used for telephonic communications as well as for ringing the bells.
The membrane or diaphragm and mouth piece of the Telephone which may be
of any suitable construction are attached to the back of the box or case carrying.
the ordinary push button used for working electric bells the magnet and coils of
the Telephone being placed in the interior of the said case behind the button.
The whole is covered in at the back by a mouthpiece and the apparatus is
connected with the circuit by a flexible cord or connection-The contact makers
of the Bell are or may be slightly modified according to the shape of the magnet
of the Telephone in order to economise space.
For example a spring may be employed being bent or curved so as to pass round
the magnet and make contact with a screw attached to a suitable support inside
the case or box In certain cases it may be advantageous to place a permanent or
receiving contact on the other side of this spring so as to be normally in contact
therewith and enable the apparatus when at rest that is to say when the button is
not pressed to receive signals sent along the line.
The apparatus may be attached to the wall or support in any convenient manner
by means of springs or other devices so arranged as to engage with and retain the
apparatus in position and enable it to be readily taken down or replaced by hand.
The wires are also connected to a spring contact making device arranged preferably

page_text: in the fixed support and which is caused to make contact by the act of removing
the Telephone from its support or holder so as to automatically connect the
telephone with the line when it is removed from the holder and disconnect it in
like manner when replaced-When the Telephone is replaced in the support or
holder the button can be used for working the bells in the ordinary manner.
Dated this 20th day of July 100%
COMPLETE SPECIFICATION.
L
A New or Improved Combination of Telephonic Apparatus and
Electric Bells.
I JOHN HENRY JOHNSON of 47 Lincolns Inn Fields in the County of Middlesex
Gentleman do hereby declare the nature of this Invention which has been
communicated to me from abroad by La Société P. Barbier & Cie of Paris in the
Republic of France and in what manner the same is to be performed, to be
particularly described and ascertained in and by the following statement:
:
-
This Invention has for its object a new or improved combination of telephonic
apparatus and electric bells whereby the empty spaces in the boxes or cases of the
pushes knobs or buttons used for working electric bells are utilised by placing
therein telephonic apparatus and thereby enabling the wires or conductors to be
used for telephonic communications as well as for ringing the bells, thus greatly
increasing the usefulness of domestic electric bells for example without any
inconvenient addition to the bulk of the apparatus. The membrane or diaphragm
and mouth piece of the telephone which may be of any suitable construction are
attached to the back of the box or case carrying the ordinary push button used for
working the electric bells the magnet and coils being placed in the interior of the
said case behind the button.
And in order that the said Invention may be fully understood I shall now
proceed more particularly to describe the same and for that purpose shall refer to
the several figures on the annexed sheet of drawings the same letters of reference
indicating corresponding parts in all the figures.
Figure 1 of the accompanying drawings is a diagram of the connections of
an apparatus or system for working domestic electric bells in combination with
telephonic apparatus as hereinafter explained.
Figure 2 is a front elevation of a push button and its case combined with a
telephone according to this invention. Figure 3 is a front view of the internal
parts the cover being removed. Figure 4 is a transverse section of the telephone
and case detached from the support shown in the same figure and figure 6 is an
external side view showing the push button and case attached to the support.
The remaining figures illustrate details hereinafter explained.

page_text: Referring to figures 2, 3, 4 and 6, B represents a box or case of any ordinary or
suitable formn such as is commonly employed for continuing the contact making
devices used in electric bell apparatus being provided with a suitable knob or push
button B¹ for operating the said contact makers. In addition to the contact
making devices for ringing the bells the case B furthur contains a telephonic
apparatus of any suitable construction. In the arrangement illustrated in the
drawings this telephonic apparatus is provided with a mouth piece E figure 4 at
the back of the case B which case is capable of being readily removed from its
supports being retained in position when the telephone is not in use by springs r
attached to a base plate R affixed to a wall or support in any suitable manner.
Behind the mouthpiece E there is arranged a diaphragm m and an electro
magnet N S shown detached in figure 3 figures 2 and 4 are the wires leading
to the battery and bells and C represents a flexible connection for the passage of
the currents controlled by the button B¹ or the telephone. The contact makers
may be made of any convenient form so as not to interfere with the telephone
apparatus. As indicated in figure 4 the knob B¹ is attached to a spring which is
fixed to the case at one end at land is bent so as to pass round the magnet N S
and make contact at its other extremity with an adjustable screw v insulated from
the support and connected with the wire l, the spring being connected with the
wire 1. In certain cases the spring may be arranged to make contact normally
with a conductor x figure 4 arranged on the opposite side of the spring to the
screw so as to enable the apparatus when at rest to receive signals sent along the
line, Figure 5 is a diagram showing the connections of the wires and contact
makers and v.
The base R contains a spring L provided with a projection I protruding through
the front of the base. This spring is connected with the wire and is capable of
making contact with a contact c connected with the coils b of the telephone by a
wire as indicated in the diagram figure 5.
When the apparatus is used for working the electric bells the case B is placed on
the base or fixed support R and is retained in position by the springs or any
other equivalent devices. The external appearance of the apparatus then resembles
that of an ordinary electric bell apparatus and the bells can be rung by depressing
the button B in the usual manner. The telephone is cut out of the circuit when
the case B is in this position as the mouth piece E comes in contact with the
projection I on the spring L. and opens the telephone circuit at c. In order to use
the telephone the case B is removed from its support where upon the elasticity of
the spring L closes the telephone circuit at c and the current being thus enabled to
circulate in the coils b (see figure 5) telephonic communications can be transmitted
or received as in an ordinary telephone.
Figure 1 shews the general arrangement of a circuit for electric bells arranged
in combination with two telephones B arranged as hereinbefore described and
communicating with a servants telephone A. The latter is attached in the same
manner as the other telephones to a fixed base or support shown in plan and in
section in figure 7. When the servants telephone is in position that is to say is
not in use a projection I¹ is pushed back in the same way as the projection I in the
arrangement herein before described and two blade springs k² k³ are thereby caused
to make contact at their extremities. Now if the line be closed by pressing on
one of the push buttons in the telephones B the current will pass and operate the
bells as will be readily understood by an inspection of figure 1 in which W
represents the bell and Y the battery.
The person summoned by the bell then removes the telephone A from its support
and applies it to his mouth or ear in the usual manner. The removal of this
telephone takes off the pressure from the projection I'.
The spring springs back to the position shown in the section (figure 7) and
makes contact with a piece of metal P. and the coils of the telephone B are thereby
placed in communication through the said spring and wires and 2 with the
coils of the telephone A. The spring k is thus caused to make contact alternately

page_text: with the spring and with the contact P by placing the telephone on its support
and removing it therefrom.
Having now described and particularly ascertained the nature of the said
Invention and in what manner the same is to be performed I declare that what
I claim is
First The combination with the case of the push button of an electric bell of a
telephonic apparatus substantially as and for the purpose hereinbefore described
and illustrated in the accompanying drawing.
Second-The combination of a telephone system and an ordinary electric bell or
call system in one and the same apparatus substantially in the manner and for the
purpose hereinbefore described and illustrated in the accompanying drawing.
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11002
J. HENRY JOHNSON.