Improvements in or relating to Telephonic Apparatus.
Year: 1898

page_text: PROVISIONAL SPECIFICATION.
Improvements in or relating to Telephonic Apparatus.
I, RAIMUND GÜNTHER, Edler von Kronmyrth Junior, of Walfischgasse 1,
Vienna I, Austria, Gentleman, do hereby declare the nature of this invention
to be as follows:-
This invention relates to apparatus by means of which a telephonic message
can be recorded by the help of a phonograph during the absence of the person
summoned. The essence of this arrangement consists in that the bell and the
hearing-telephone can be cut-out by the subscribers and in lieu thereof an
escapement of the clockwork of a phonograph and also the speaking-device of the
latter, inserted into the telephone circuit so that consequent summoning on the
part of a subscriber or of the exchange causes, instead of the operation of the bell,
the liberation of the escapement and thereupon the effects of speaking are transferred
to the pencil-carrying diaphragm of the phonograph that has been put into
operation, instead of to the diaphragm of the hearing-telephone.
In this way it is rendered possible for the summoned subscriber to have recorded
a telephonic message for the purpose of subsequent repetition, which is particularly
important in his absence, as even in this case the connexion between the two
subscribers. can be effected and the communication made.
Ringing-off stops the clockwork and the phonograph-cylinder.
For practically carrying out the invention the telephone is arranged in con-
nection with a phonograph in such a manner that the telephone-conductor from
the hearing-tube, and also the bell-conductor can each be switched to a second
conductor, which, like the first-mentioned conductors are passed round two electro-
magnets, of which one acts upon the escapement and the other is placed opposite
to the diaphragm of the phonograph that moves the pencil.
Upon transmission of the telephonic message, the electromagnet thereupon
energized puts the diaphragm of the phonograph into vibration as soon as the
latter is put into circuit, and the message is inscribed in the ordinary way in
the phonograph-cylinder.
The accompanying drawing shows one construction of the apparatus for starting
the clockwork that drives the phonograph-cylinder, Fig. 1 being a side elevation,
Fig. 2 a plan, and Fig. 3 an end elevation of this liberating-arrangement.
M is an electromagnet, which can be placed in circuit by means of a switch,
ordinary in telephone-apparatus, instead of the electromagnet actuating the bell,
and which acts upon an armature A whose lever a has jointed to it at b an arm c
which is acted upon by the tension of the spring f and which presses forward the
ratchet-wheel R as soon as the armature is attracted.
The shaft d of the ratchet-wheel R carries an escapement-wheel r, which has
half as many teeth as the ratchet-wheel and, on the armature being attracted
during the summoning, is rotated to the same extent as the ratchet-wheel R,
wherchy one of the teeth of the escapement-wheel is brought out of the way of and
liberates, the fly W (which is normally prevented from rotating by the escapement-
wheel), whilst simultaneously the ratchet-wheel is, by a detent S that engages there-
with, stopped and prevented from rotating backwards as soon as, on the stopping

page_text: of the summoning-current, the armature-lever a and with it the arm, is drawn
back by the spring f, and the arm falls in behind a tooth of the ratchet-
wheel R.
The fly W belongs to the clockwork that drives the phonograph-cylinder, so that
the latter is put into rotation on the first closing of the current corresponding to
the summoning, and remains in rotation until, by the second closing of current
(which corresponds to ringing-off) after the completion of the telephonic com-
munication, the ratchet wheel and escapement-wheel are again pressed forward
by the consequent armature-attraction and thereby a tooth of the escapement-
wheel is placed into the path of the fly.
The pole-pieces are advantageously arranged in such a manner that, as shown in
Fig. 2, they extend inwards, in order to produce a larger magnetic field.
There can also be provided in front of the electromagnet that vibrates the
diaphragm of the phonograph, (as in the case of the telephone) a metal plate
(membrane or diaphragm) that acts upon the said diaphragm of the phonograph,
which is of advantage when, for example, in the case of great distances, direct
transference is difficult. A consequent weakening of the sound-reproduction can
be obviated by a sound-strengthener of known kind.
The procedure in the practical employment of the telephonographic apparatus is
as follows:-
When a person goes away, he switches the telephone-conductor and bell-con-
ductor upon the telephonograph, so that when the absentee is summoned at the
telephone the clockwork of the phonograph-cylinder is put into motion and the
summoning subscriber can thus speak his communication into the phonograph
exactly as if the summoned party were present. When the summoner rings-off, the
clockwork is stopped.
When the summoned person returns, he switches the two conductors back,
removes the electromagnet of the telephonograph from its diaphragm and, by
starting the phonograph, brings about the reproduction of the telephonic com-
munication recorded on the cylinder thereof.
Dated this 30th day of Anril 1898
F. WISE HOWORTH,
46, Lincoln's Inn Fields, London, W.C.,
Agent for the Applicant.
.
Improvements in or relating to Telephonic Apparatus.
I, RAIMUND GÜNTHER, Edler von Kronmyrth Junior, of Walfischgasse 1,
Vienna I, Austria, Gentleman, 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:-
This invention relates to apparatus by means of which a telephonic message
can be recorded by the help of a phonograph during the absence of the person
summoned. The essence of this apparatus consists in that a telephone and its
bell can be cut out by a subscriber and in lieu thereof electro magneis adapted to
operate an escapement of the clockwork of a phonograph and also the speaking-
device of the latter, inserted into the telephone circuit, so that summoning on the
part of a subscriber or of the exchange causes, instead of the operation of the bell,
the liberation of the escapement and thereupon the effects of speaking are
transferred to the stylus-carrying diaphragm of the phonograph that has been
put into operation, instead of to the diaphragm of the telephone.

page_text: In this way it is rendered possible for the summoned subscriber to have recorded
a telephonic message for the purpose of subsequent repetition, which is particularly
valuable when he is absent, as even in this case the connexion between the two
subscribers can be effected and the communication made.
The action that would normally produce ringing-off, stops the clockwork and the
phonograph-cylinder.
For practically carrying out the invention the telephone is connected with a
phonograph in such a manner that the conductor of the receiver of the telephone
and that of the bell-conductor can be respectively switched to two other conductors,
which, like the first-mentioned conductors, are passed round two electro-magnets.
Of the electro magnets of the two secondly mentioned conductors, one acts upon
the escapement and the other is placed opposite to the diaphragm of the phonograph
that moves the stylus.
Upon transmission of a telephonic message, the electro-magnet thereby energized
puts the diaphragm of the phonograph into vibration if the latter has been put into
circuit, and the message is inscribed in the ordinary way in the phonograph-
cylinder.
The drawings accompanying my Provisional Specification show an example of
apparatus according to this invention for starting the clockwork that drives the
phonograph-cylinder, Fig. 1 being a side elevation, Fig. 2 a plan, and Fig. 3 an
end elevation thereof.
M is an electro-magnet which can be placed in circuit by means of a switch such
as ordinarily used in telepiñonic apparatus, instead of the electro-magnet for actuat-
ing the bell. This electromagnet acts upon an armature A whose lever a has
jointed to it at an arm c which is pressed upon by a spring F and moves forward
a ratchet-wheel R as soon as the armature is attracted.
The shaft d of the ratchet-wheel R carries an escapement-wheel r, which has
half as many teeth as the ratchet-wheel, and, on the attraction of the armature
effected by the act of summoning, is rotated to the same extent as the ratchet-
wheel R, whereby one of the teeth of the escapement wheel is brought out of the way
of, and liberates, a fly W (which is normally prevented from rotating by the escape-
ment-wheel), whilst simultaneously the ratchet-wheel is, by a detent S that
engages therewith, stopped and prevented from rotating backwards as soon as,
on the stopping of the summoning-current, the armature-lever a, and with
it the arm c, is drawn back by a spring f, and the arm moves in behind a tooth of
the ratchet-wheel R.
The fly W belongs to the clockwork that drives the phonograph-cylinder, so that
the latter is put into rotation on the first closing of the circuit (which corresponds
to summoning), and remains in rotation until, by the second closing of circuit
(which corresponds to ringing-off) after the completion of the telephonic message,
the ratchet wheel and the escapement-wheel are again moved forward by the
consequent attraction of the armature and thereby a tooth of the escapement-wheel
is placed into the path of the fly.
The pole-pieces may advantageously be arranged in such a manner that, as
shown in Fig. 2, they extend inwards, in order to produce a larger magnetic
field.
In front of the electro magnet that vibrates the diaphragm of the phonograph,
there may be placed (as in the case of the telephone) a second and metal diaphragm
that acts upon the diaphragm proper of the phonograph; this will be of advantage
if for example in the case of great distances, direct transference be difficult.
consequent weakening of the sound-reproduction can be obviated by a sound-
strengthener of known kind.
A
The procedure in the practical employment of an apparatus such as described,
which I call a telephonograph, is as follows:-
When a person goes away, he switches the telephone-conductor and bell-con-
ductor upon the telephonograph, so that when the absentee is summoned at the
telephone, the clockwork of the phonograph-cylinder is put into motion and

page_text: the summoning subscriber can thus speak his communication into the phonograph
exactly as if the summoned party were present. When the summoner rings off,
the clockwork is stopped.
When the summoned person returns, he switches the two conduc.ors back, removes
the electro magnet of the telephonograph from its diaphragm, and, by starting the
phonograph, brings about the reproduction of the telephonic communication
recorded on the cylinder thereof.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed I declare that what
I claim is:
1. Apparatus for recording telephonically communicated messages on a phono-
graph-cylinder without the attendance of the summoned person in which the
current transmitted to give the summoning-sigual energizes an electromagnet.
which is placed in the summoning-circuit in the place of the bell-electromagnet
by means of a switch, and which liberates a clockwork that puts the phonograph-
cylinder into rotation, and the speaking-effects are then transferred to the phono-
graph-diaphragm by means of an electromagnet that acts upon this diaphragm and
is inserted in the circuit in the place of the electromagnet of the telephone.
2. Apparatus for liberating the phonograph clockwork, referred to in the
preceding claim, in which an arm c, acting upon a ratchet-wheel R and jointed to
the lever a of the electromagnet-armature A, rotates the said ratchet-wheel, on
the attraction of this armature, to such an extent that an escapement-wheel_r,
which is connected with the ratchet-wheel and normally prevents movement of the
fly W of the clockwork, liberates the fly, whilst simultaneously the ratchet-wheel
is, by means of a detent S, prevented from rotating backwards, so that the
clockwork is free to rotate until the fly is again stopped by means of the further
movement of the escapement-wheel r effected on a subsequent closure of the
circuit.
1000
F. WISE HOWORTH,
46, Lincoln's Inn Fields, London, W.C.,
Agent for the Applicant.