DE431664C - Circuit arrangement for counting connections of different values in telephone systems - Google Patents

Description

GERMAN EMPIRE

ISSUED ON
15 J ULI 1926

REICH'S PATENT OFFICE

PATENT LETTERING

CLASS 21a ³ GROUP

(S57 & 45

Siemens & Halske Akt-Ges. in Berlin-Siemensstadt Circuit arrangement for counting connections of different values in telephone systems.

Addition to patent 25623g.

Patented in the German Empire on October 14, 1921. The main patent started on December 25, 1910.

According to the Union Treaty of June 2, 1911, priority is due to this application of the application in Great Britain on October 21, 1920.

In the main patent is a circuit arrangement for paying for connections of different values shown.

The invention is a further development of this arrangement and relates in particular Systems in which the value of a connection established was effected according to the value Counter increment in certain time periods, e.g. B. every 3 minutes, repeated will. It consists in the fact that the switching devices that control the incrementation of the counter Aids are assigned that give the speaking participants a sign before each counting repetition. If the existing connection is to be released after a certain time has elapsed

follow, according to the invention, a switching device is provided with the one Character switching means works together and after one or more times Repeat counting causes the connection to be released.

The fee to be paid for a connection is determined by the value the connection line used for the same. Depending on the value of such a connecting line, in known Way over the same a different number of control currents transmitted backwards will. The arrangement can also be made such that the fee is determined by the number of exchanges via which such a connection runs.

An exemplary embodiment of the invention is shown in the drawing. Of the switching devices to be used for a connection between two subscribers, only parts of a relay relay set H are shown. The relay 11 is a 'bridge relay via which the calling subscriber receives his feed current. The relay 12 is a release delay relay and remains energized for the duration of the connection, even during the impulse given by the calling subscriber (when establishing the connection). The relay 10 is dependent on the called party; it responds as soon as it answers. The switching of the voters is completely irrelevant for the essence of the invention. Voters of any type can be used.

It is assumed that the relay set / - / is attached to a connection line that carries the Switching center of the calling subscriber connects to another switching center.

Each time a connection line leading to a further exchange is seized, one or more control currents are sent out. These current surges take the following course: wire 21, normally closed contact 23 of relay io, magnet 22 of switch S, battery, earth. The magnet 22 responds to each control current surge and moves the switching arms 24 and 25 of the switch S step by step. With every excitation, however, the magnet 22 also sends control current surges via its armature 26 and the line 27 to switching devices located in front of the relay set Ii.

When three control currents have come into effect via the line 2i, the switching arm 24 is on "the contact 28 and the switching arm 25 on the contact 29. If the called subscriber answers, the relay 10 responds and thereby closes the following circuit: Earth , Contact 42, winding I of the magnet 43, battery, earth. The magnet 43 responds and switches itself into a holding circuit via its winding II: earth, battery, winding II of the magnet 43,. Contact 70, switching arm 24 of the Switch S, contact 28, wire 37, contact 54/53 on the cam disk 32 of the switch ZS ₂ , earth. This holding circuit can only be interrupted when the connection is released. The magnet 43 also attracts its armature 44, whereby a switching device, consisting of the disks 18, 20 and 47 provided with lugs, is mechanically coupled to a drive 41 by means of the coupling disk 156.

When the cam on the disk 34 closes the contact 71 on the switching mechanism ZS ₂ , the magnet 40 is excited via the wire 39. This attracts its armature and thereby moves the ratchet wheel 41, whereby the switching mechanism ZS ₁ is also advanced by one step by means of the clutch disc 156. After completing this step, the nose 51 is in contact with the spring 52 and has moved it to the left. This opens the contact 16/17, but only after the contact spring 52 has come into contact with the contact spring 16. Through this contact transfer, the release wire 13 remains grounded as follows: wire 13, contact 14 of relay 12, contact 16/52, switching arm 24 and contact 28 of switch S ₁ wire 37, contact 54/53, earth. If, during the movement of the switching mechanism ZS _2, a cam of the switching disk 32 comes into contact with the contact spring 55, a contact 55/54 is first closed and then the contact 54/53 is opened. Instead of the earth, an additional battery is now connected to the release wire 13 via a resistor 57. When the switching springs 55 and 54 have been moved completely to the right by the cam of the disk 32, the resistor 57 is bridged by closing a contact 54/56. The additional battery is then directly connected to wire 13, as a result of which, as a result of the increased current, a counter that can be influenced via this wire is adjusted by one step.

The disc 32 is equipped with three cams. With each cycle of the switching mechanism ZS ₂ , three counting current surges are accordingly transmitted to the counter via the wire 13 as a result of the contact 54/56 being closed three times.

If the disk had been selected by the switching mechanism S , only one counting current impulse would be given during one revolution of the switching mechanism ZS _2. The disk makes two and disk 33 makes four

Counting current surges sent out in a unit of time.

After one revolution of the shaft of the switching mechanism ZS ₂ , the cam of the disk 34 closes the contact 71 again and thereby again excites the magnet 40 of the counter ZS ₁ . The nose 51 therefore moves away from the spring 52, so that the contact 16/17 is closed and then the contact 16/52 is opened. The release wire 13 is now again connected to earth via the contact 16/17 and the contact 19, which can be influenced by the nose 68 of the disc 20.

After pressing the corn several times, the nose comes up over the vein 39 58 on the disk 18 in contact with the contact spring 52. It then takes place again relocating the trip wires 13 to the contacts that can be influenced by the disk 32, so that three counting current surges are sent out again in the manner described. These The counting can be repeated any number of times.

In the event that a time limit

As the connection duration is desired, facilities are provided which automatically trigger the existing connection after repeating the count one or more times. For this purpose, the disks 20 and 47 are arranged on the switching mechanism ZS ₁ and the disk J2 on the switching mechanism ZS ₂ .

By uniting the entities that cause the disconnection with the counter incremental devices, the provision is special, only for Separation of connections after certain times are avoided by serving time switches, which results in substantial savings is achieved on apparatus.

Shortly before a connection is to be released, the nose 59 of the disc 47 comes into contact with the contact spring 60 and thereby switches on a buzzer to the speech artery 27 coming from the calling subscriber: earth, battery, induction coil 63, contact 62 (this contact becomes temporarily closed by the cam on the disk 72), wire 61, contact 60, line 27. The subscriber hears the buzzer and recognizes that the connection will shortly be interrupted. When the magnet 40 is excited which follows the closure of the contact 60 by the nose 59, the nose 68 of the disk 20 comes into contact with the contact 19 and opens it. As a result, the earth is switched off from the release wire 13 and thus triggers the existing connection in a known manner. J The buzzer can also be sent to the! Wire 27 must be switched on before each repeated count. In this case it is only necessary to provide a number of lugs 59 on the disc 47, which close the contact shortly before the closure of the contact 16/52 takes place through a lug of the disc. In this case, the subscribers could be alerted by buzzer signals that a new count j of the connection is imminent. By immediately hanging up the receiver and the resulting triggering of the! Connection would prevent recounting. ; When a connection is released, the relays 11 and 12 are de-energized one after the other. The release magnet 68 of the switching mechanism S is switched on via the normally closed contacts of these two relays: Earth, Kon-! bars 66, 67, 29, switch arm 25, magnet 68, ■ battery, earth. The switching mechanism S returns to the rest position and, as soon as the arm 24 leaves the contact 28, opens the holding circuit for the magnet 43. The switching mechanism ZS ₁ returns to the rest position by means of a spring 50. .

Claims (2)

Patent Claims: 1. Circuit arrangement for counting connections of different values in telephone systems according to patent 256239, characterized in that the switching devices (ZS ₁ , ZS ₂ ) controlling the counter incrementation are assigned auxiliary means (72/62, 47/59/60), which are allocated before each in certain time segments give the speaking subscriber a sign (63) to continue incrementing the counter. 2. Circuit arrangement according to An-Spruch ι for systems in which connections are disconnected after a certain time, characterized in that the disconnection of the connection causing switching element (20, 68, 19) from the switching devices for counter increment (ZS ₁ , ZS ₂ ) is controlled and triggers the existing connection after counting repetitions one or more times (by interrupting contact ic)). For this purpose ι drawings.