Apparatus for Giving Temporary Use of Telephones in Exchange for Coin.
Year: 1889

page_text: The decision of the Chief Examiner, acting on behalf of the Comptroller, of the
12th day of September 1892, allowed, under Section 18 of the Patents, &c. Act,
1883, an Amendment of this Specification.
Date of Application, 19th Aug., 1889
Complete Specification Left, 24th Apr., 1890-Accepted, 19th July, 1890
PROVISIONAL SPECIFICATION.
Apparatus for Giving Temporary Use of Telephones in Exchange
for Coin.
We, BÉLIZAIRE MARINOVITCH and GÉZA SZARVADY both of 1 Boulevard St. Denis
Paris France Electrical Engineers do hereby declare the nature of this Invention to
be as follows:-
This Invention consists of an apparatus by means of which the use of a telephone
can be obtained for a determined duration of time upon the insertion of a prescribed
coin. The duration is regulated by a clockwork movement which can be arranged to
work either continuously or only at the times when the apparatus is operated. In
the latter case the starting of the clockwork is effected by the action of the inserted
coin which can produce the release either mechanically or electrically according to
the construction of the apparatus. The same apparatus can be arranged to give the
use of the apparatus for different durations of time for different coins. Each kind of
coin that will work the apparatus should be inserted through a special hole or slot of
dimensions just sufficient to allow it to pass. It slides down a shoot until it reaches
a balanced plate which its weight causes to turn on a horizontal axis and the coin then
slips off into a box or receptacle. The movement of the balanced plate releases the
clockwork. This effect is produced as follows:-A pin fixed to the counterweight of
the balance plate slightly raises a piece (hereinafter called the first piece) which in its
rotary movement moves a lever, and this allows of the escape of a pin that holds the
clockwork. A wheel having two notches at diametrically opposite points and which
forms part of the clockwork and which makes a half turn for each use of the apparatus
begins to turn and a catch which rested in one of the notches gradually rises until
it is entirely free of the notch. The catch will rest on the periphery of the
wheel until the latter having made a half turn presents the other notch to the
catch.
The pin of the balance plate at the same time that it raises the first piece also
lifts a second piece and lodges in a notch in this piece. The plate is in this way
retained in an inclined position of about 45°. The second piece which the pin lifts
when the balanced plate turns on its pivot terminates in a bent part which corresponds
with an opening in the bottom of the coin shoot. In the state of rest the bent part
is level with the bottom of the shoot without offering any projection. As soon as a
coin causes the balance plate to turn on its pivot the bent part passes through the
opening in the shoot and prevents any other coin passing.
The catch before described in leaving the notch of the notched wheel has drawn
into its angular movement the first piece which carries a fork of special form. One
of the arms of this fork first raises the second piece which thus allows the pin of the
balance plate to escape but this pin being caught by the second arm of the fork the
plate preserves its inclination of 45° being held in this position by the first piece and
not now by the second piece. When the notched wheel has completed a half turn
the catch falls into the second notch the lever moves across the pin that controls the

page_text: clockwork and thereby stops the movement of the clockwork; the first piece returns
quickly to its original position and frees the second piece as well as the pin of the
balanced plate. This plate therefore takes up its original position ready to receive
another coin.
In the arrangement above described the clockwork is intermittent in its movement
and only acts during the determined period. But we can also employ clockwork
.which moves continuously. One of the arrangements we adopt for this purpose consists
in mounting with rather hard friction on an arbor of the clockwork a wheel which
makes a turn or partial turn for the duration of one use of the apparatus. This wheel
which during its movement produces, as may be arranged, the opening or closing of
the circuit which allows of the use of the apparatus is kept at rest by the armature of
an electro magnet. When this armature is moved by the play or action of a coin it
allows the wheel to escape from contact and the wheel is moved by the arbor on which
it is mounted. At the end of the turn or partial turn the armature returns to place
and stops this wheel.
Instead of effecting the release mechanically we can adopt any other mode of release
for example an electrical arrangement such as the following:-The lower end of the
coin shoot is closed by a stop plate movable in a vertical plane around a spindle. In
the bottom of the shoot are two insulated springs which form the two ends of a circuit
comprising an electro magnet and a battery. Instead of the balanced plate before
described for effecting the release mechanically there is a plate which serves as the
armature of the electro magnet. When the coin reaches the end of the shoot it is held
there by the stop plate. It establishes contact between the springs and closes the
circuit of the battery and electro magnet. The plate is thus attracted and releases
the clockwork, all the rest takes place as before explained. The stop plate is controlled
by a cam worked by the clockwork. It rises automatically during the time determined
for the use of the apparatus and allows the coin to escape, then it rises to its original
position ready to stop the next coin.
Instead of having the clock work and the coin shoot in the same apparatus we can
make them distinct apparatus and place the main clockwork and the electric releaser
in one place (for example in the central office where all the commutations, are made)
and the coin shoot with its accessories in another place where the telephones are.
The apparatus has a counter or integrator and a hand or pointer connected with the
clockwork. The counter records a unit for each use and checks the receipts. The
hand which is visible begins to travel when each use of the apparatus commences and
completes one turn of the scale during the time determined for such use. It shows
the user when his time is about to end if he does not insert a fresh coin into the
apparatus. The apparatus comprises also a telegraphic receiver actuated by the attendant
at the central office. It shows constantly what telephonic communication can be
obtained by introducing the prescribed coin into the apparatus. The telegraphic
receiver makes part of the apparatus if this is invariably connected to the line. It is
independent if the apparatus is intended to be moved from one place to another and
connected at will to different points of the circuit. In the latter case the telegraphic
receiver only is connected invariably with the line.
The telegraphic receivers are mounted on one or more lines independent of the
telephone lines.
D
101
1
1000

page_text: COMPLETE SPECIFICATION (AMENDED).
Apparatus for Giving Temporary Use of Telephones in Exchange
for Coin.
We, BÉLIZAIRE MARINOVITCH and GÉZA SZARVADY both of 1 Boulevard St. Denis,
Paris, France, Electrical Engineers, do hereby declare the nature of this invention
and in what manner the same is to be perforined, to be particularly described and
ascertained in and by the following statement:-
This invention consists of an apparatus by means of which the use of a telephone
can be obtained for a determined duration of time upon the insertion of a prescribed
coin. The duration is regulated by a clockwork movement which can be arranged to
work either continuously or only at the times when the apparatus is operated. In the
latter case the starting of the clockwork is effected by the action of the inserted coin
which can produce the release either mechanically or electrically according to the
construction of the apparatus. The same apparatus can be arranged to give the use
of the apparatus for different durations of time for different coins. Each kind of coin
that will work the apparatus should be inserted through a special slot or hole of
dimensions just sufficient to allow it to pass. It slides down a shoot C (see
Figures 1 and 2 and also Figure 2bs of the annexed drawings) until it reaches a
balanced plate P which its weight causes to turn on a horizontal axis, and the coin
then slips off into a box or receptacle.
A
The movement of the balanced plate releases the clock work the last movable wheel
of which is R. This effect is produced as follows:-When the balanced plate P
descends a pin Q fixed to the counterweight of the same slightly raises a piec? M,
and as this piece is keyed on the same spindle as the lever L this lever moves from
right to left. (Figures 1 and 2bs) and this allows of the escape of a pin G that holds
the wheel R of the clockwork; the clockwork can then at once begin to move.
wheel V having two notches E and E at diametrically opposite points and which forms
part of the clockwork and which makes a balf turn for each use of the apparatus begins
to turn, a catch Z which rested in one of the notches E and is keyed on the same
spindle as the piece M and lever L gradually rising until it is entirely free of the notch.
The catch will rest on the periphery of the wheel until the latter having made a half
turn presents the other notch E¹ to the catch.
The pin of the balanced plate P at the same time that it raises the piece M also
lifts a second piece B which is movable on an axis parallel with that of the plate P.
The movement of this piece B effects two purposes; first it ensures the starting of
the clockwork by preventing the balanced plate P returning to position immediately
after the passage of the coin, and secondly it retains in the coin shoot any other coin
which may be inserted during the use of the apparatus. The first of these objects is
attained by means of the notch h in the piece B; the pin Q lodges in this notch and
the plate P is in this way retained in an inclined position of about 45°. The secon
of these objects is attained by the bent part F which forms the termination of the
piece B and is situated opposite an opening O in the bottom of the coin shoot C. In
the state of rest the bent part F is level with the bottom of the shoot without offering
any projection. As soon as a coin causes the balance plate P to turn on its pivot the
bent part F passes through the opening O in the shoot and prevents any other coin
But the
passing. If the parts remained thus the clockwork would not be stopped.
catch Z before described in leaving the notch of the notched wheel has drawn into
its angular movement the piece M and this has a fork D of special form. One of the
arms S of this fork first raises the piece B which thus allows the pin Q of the balanced
plate to escape, but this pin being caught by the second army of the fork the plate
preserves its inclination of about 45° being held in this position by the piece M and
not now by the piece B. When the notched wheel V has completed a half turn the
catch Z falls into the second notch E¹ the lever L moves across the pin G of the last
movable wheel R and stops the movement of the clockwork; the piece. M returns
.
•

page_text: quickly to its original position and frees the piece B as well as the pin Qof
the balanced plate P. This plate therefore takes up its original position ready to
receive another coin.
In the arrangement above described the clockwork is intermittent in its movement
and only acts during the determined period. But we can also employ clockwork which
moves continuously. One of the arrangements we adopt for this purpose consists in
mounting with rather hard friction on an arbor of the clockwork a wheel which makes
a turn or partial turn for the duration of one use of the apparatus. This wheel which
during its movement produces, as may be arranged, the opening or closing of the
circuit which allows of the use of the apparatus is kept at rest by the armature of an
electro magnet. When this armature is moved by the play or action of a coin it
allows the wheel to escape from contact and the wheel is moved by the arbor on
which it is mounted. At the end of the turn or partial turn the armature returns to
place and stops this wheel.
Instead of effecting the release mechanically we can adopt any other mode of
release, for example an electrical arrangement such as that illustrated by Figure 3.
The lower end of the coin shoot C is closed by a stop plate S movable in a vertical plane
around a spindle T. In the bottom of the shoot are two insulated springs, a which
form the two ends of a circuit comprising an electro magnet Y and a battery. Instead
of the balanced plate P before described for effecting the release mechanically there is
a plate W which serves as the armature of the electro magnet Y. When the coin reaches
the end of the shoot it is held there by the stop plate S. It establishes contact between
the springs, and closes the circuit of the battery and electro magnet. The plate W
is thus attracted and releases the clockwork. All the rest takes place as before
explained. The stop plate is controlled by a cam U worked by the clockwork. It
rises automatically during the time determined for the use of the apparatus and
allows the coin to escape; then it rises returns to its original position ready to stop the
next coin.
Instead of having the clockwork and the coin shoot in the same apparatus we can
make them distinct apparatus and place the main clockwork and the electric releaser
in one place (for example in the central office where all the commutations are
made) and the coin shoot with its accessories in another place where the
telephones are.
The apparatus has a counter or integrator and a hand or pointer connected with
the clockwork. The counter records a unit for each use and checks the receipts. The
hand which is visible begins to travel when each use of the apparatus commences and
completes one turn of the scale during the time determined for such use. It shows
the user when his time is about to end if he does not insert a fresh coin into the
apparatus. The apparatus comprises also a telegraphic receiver actuated by the
attendant at the central office. It shows constantly what telephonic communication
can be obtained by introducing the prescribed coin into the apparatus. The telegraphic
receiver makes part of the apparatus if this is invariably connected to the line. It is
independent if the apparatus is intended to be moved from one place to another and
connected at will to different points of the circuit. In the latter case the telegraphic
receiver only is connected invariably with the line.
The telegraphic receivers are mounted on one or more lines independent of the
telephone lines.
Our invention does not relate to systems for effecting ordinary telephonic communications
in which complete telephonic apparatus is used comprising a transmitter, receivers, a
"call" and a bell or other like signalling device, each end of the line being both a speak-
ing and a receiving end. When it is required to use an apparatus of that kind it is
necessary to send a signal to the central office, await the reply, and then to state what
particular connection is required. Our invention relates to a system of telephonic com-
munication which enables concerts, theatrical performances, speeches and the like to be
heard at a distance, one end of the line (that where our coin shoot is situated being
purely a receiving end and the other end (which is in the theatre or the like) being purely
a transmitting end the connection between the two ends being always pre-established.

page_text: The simple insertion of the prescribed coin into our apparatus completes the connection
between the two ends without calling up the central office.
Figure 4, Sheet 3, shows how the telephonic connections can be arranged for the
apparatus shown in Figures 1, 2 and 2s. On the same spindle as the wheel V is
keyed a cam X having two projections xx. In the state of rest the rod k bears upon
one or other of these projections and closes by the short circuit a, b, c, k, d, e, f the
telephonic receivers T T. When the coin has been inserted into the apparatus and
has acted on the balanced plate the wheel V begins to turn in the direction of the
arrow the cam X turning therewith. The rod k at once escapes from the projection
and the short circuit of the receivers T T is broken between e and k and the electric
vibrations pass through the receivers. The use of the apparatus thus commences and
lasts all the time that the wheel V is making a half turn. At the expiration of this
half turn the projection a¹ again lifts the rod k and recloses between c and k the short
circuit a, b, c, k, d, e, f. In this figure we have supposed connection to be temporarily
established between our coin actuated apparatus and a theatre. On each side of the
prompter's box O are placed two microphones M M connected to a battery N and to the
primary P of an induction coil. The telephone line starting from the secondary S of
the induction coil leads at X X to the central office where it is connected with a line Y Y
which leats to the coin actuated apparatus. A is a manipulator to enable the attendant
at the central office to send the current from the battery B to the telegraphic receiver D
at the coin actuated apparatus and show what telephonic communication can be obtained.
Cis a repeater analogous to D which allows the attendant to check the signals sent by
him to the apparatus.
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 :-
1. An apparatus for giving temporary use of telephones in exchange for coin, in
which a prescribed coin when inserted effects the release of clockwork which
opens or closes an electric circuit or a derivation from a circuit for a determined
length of time substantially as set forth.
2. In an apparatus for giving temporary use of telephones in exchange for coin, a
balanced plate upon which the prescribed coin falls so as to effect the release of clock-
work in connection with an electric circuit, in combination with a piece such as B
having a notch which retains the said plate for a sufficient length of time in an inclined
position of approximately 45°, and with a piece such as M for releasing the said plate
from the notch substantially as set forth.
3. In an apparatus for giving temporary use of telephones in exchange for coin, the
combination with the balanced plate upon which the prescribed coin falls so as to effect
the release of clockwork in connection with an electric circuit, of the piece B having
a notch, the piece M, the catch Z and the notched wheel V of the clockwork, substantially
as and for the purpose set forth.
4. in apparatus for giving temporary use of telephones in exchange for coin, the
combination or combined use of two distinct apparatus capable of being placed at
different places, the one of said apparatus containing the clockwork and the releasing
mechanism and the other the coin shoot and its accessories, and particularly the
springs the contact with which produces the working of the electric releaser,
substantially as set forth.
30
nnd י
J. C. MEWBURN,
55 & 56, Chancery Lane, London, Patent Agent.