DE426582C - Call dialer - Google Patents

Description

GERMAN EMPIRE

ISSUED ON
MARCH 15, 1926

REICH PATENT OFFICE

PATENT LETTERING

- JVr 426582 CLASS 21 at GROUP

(S 60426 VIIIl ₂ Ia ¹ )

Societe Frangaise Radio-Electrique in Paris *). Dialer.

• Addition to patent 425428.

Patented in the German Empire on July 25, 1922. The main patent started on October 15, 1921.

According to the Union Treaty of June 2nd ig 11, the priority for this registration is due of the application in France of January 17, 192a.

In the 425428 patent, a dialer 1 is another character immediately after the

described which on the receipt of a

specific character set can be set

can and when receiving the characters in other

those than the set order as well as receipt of the set character set again is returned to the zero position and the alarm device is not actuated. the The alarm signal is only activated

*) The patent seeker stated as the inventor:

Louis Luden Eugene Chauveau in Paris.

420582

if the order of the characters corresponds exactly to the set order and the set character set is not immediately followed by another character.
The dialer according to the patent 425428 comprises two different devices, of which the first is used to determine the type of characters (dots or dashes), the second to monitor the sequence of characters in a character set, e.g. B. the sequence of dots and dashes for a letter according to the Morse code. The invention now relates to this latter device, which monitors the order of the characters in the character set, while the first-mentioned device remains unchanged.

According to the patent 425428 an indexing mechanism is provided which consists of a toothed wheel which is indexed by an indexing pawl under the action of an electromagnet and is held in the advanced position by a counter pawl. The switching solenoid is energized when each character is received. The indexing pawl and counter pawl can, however, be released from the gear under the action of a second electromagnet if one of the characters does not correspond to the setting of the selector. By advancing the gear wheel the adjustment of a contact finger in front of a number of contact lamellas is intended, which correspond individually depending on a character of the letter set and which are arranged in a suitable manner in the circuit of a second electromagnet to make this respond when a character not set in the order is received at that time.

The present invention now relates to an arrangement by means of which it becomes possible that above-mentioned mechanical-electrical devices by a group of electromagnets that are excited according to the arrival of the characters, for the purpose of creating a call selector that of elements of the same type and the simplest and cheapest possible construction consists.

An example embodiment of the invention is on the accompanying drawing illustrated. The different parts serving the same purpose are with the same Reference numerals denote like the corresponding parts in the main patent, where on in the accompanying drawings these reference numerals are indicated by the sign '.

The contact 1 'can be closed by hand or by means of any suitable relay will. An electromagnet 2 'is controlled by this contact, through which a contact set 7' is actuated, which either the dash line 14 'if a dash is received, or the dot line 15', when a point is received, such as that in the '425,428 patent is described.

The electromagnet 2 ′ is provided with a second set of contacts 40. If contact 1 'is open, contact 40 is in the rest position. The electromagnet 41 is excited and is held above its contact 42, the contact 43 also being closed.

As soon as a character arrives, the electromagnet 2 'responds and closes the contact 40, so that the "line 46 via the electromagnet 44 and the contact 43 with the The negative pole of the power source is connected through the closed contact 40. The administration On the other hand, 46 is connected to the positive pole of the power source via contact 48, the electromagnet 47 and the contact 58. The electromagnet 44 is energized and interrupts in 45 the holding circuit of the electromagnet 41, so that this is de-excited. The contacts of this latter become as a result opened and the line · is there because it is interrupted in 43, no longer energized. ·

During the pause following the first character, the electromagnet 41 is activated again excited, and the same processes are repeated every time a character is started. From this it follows that a short duration rush current is applied to line 46 at the beginning of each character is sent.

At the beginning of the first current surge, the line 46 is connected to the electromagnet 47 connected, this is excited and stays above its contact 48. Through the contact 49 of the electromagnet 47, the electromagnet 50 is connected to the line 46. Since the line 46, however, only current pulses of short duration as a result of the operation of the Electromagnet 44 receives, the electromagnet 50 is not energized, but it will at the following current pulse.

As soon as the electromagnet 50 is energized, it holds itself over its contact 51 and connects Via its contact 52, the electromagnet 53 with the line 46.

When the following current surge occurs, the electromagnet 53 comes into effect and stays above his Contact 54 and connects in 55 the electromagnet 56 with the line 46. At the fourth The electromagnet 56 is excited by a current pulse.

From the foregoing it can be seen that the overall arrangement is the successive ; End of activation of electromagnets 47, 50, 53 and 56 with the incoming characters

allowed. In order to work safely, it is necessary that the contact 48 at the beginning of the excitation of the electromagnet 47 is closed, while the contact 49 only after the electromagnet has come into effect, is closed.

The same applies to the electromagnets 50, 53 and 56. This excitation can be easily by suitable delay in contact closure. The electromagnet 44 can the circuit of the electromagnet 41 through depending on the setting of its armature Interrupt opening of contact 45 as quickly as you like. Since the contact 43 through the successive action of these two electromagnets is interrupted, so will also the line 46 is de-energized for a long enough time to energize a the electromagnets 47, 50, 53 and 56 too

ao secure.

At the reception . of the first character is the electromagnet 23 'which, by interrupting the contact 58, serves to return the whole to the rest position via the contacts which are in their rest position. 20 ', 19', 18 'is connected to the contact 17' and is connected through this to the line 15 ', which is intended for the transmission of dot characters. If, in this case, where the receiving system is set to the letter c (), a point is given instead of the first character, whereby the switch Y _1, i.e. the line 15 ', is connected to the negative terminal of the voltage source, the magnet 23 is located 'in a closed circuit and makes the electromagnet 47 currentless by opening the switch 58, so that the slats 17', 49, 48 return to the rest position shown in the drawing. As a result, however, the electromagnet 23 'is again de-energized (via the switch 17'), and the contact at 58 is re-established so that the whole system is ready to receive again.

If, on the other hand, a line is emitted after the electromagnet 47 has been switched on, as required, the magnet 50 will be excited with the second pulse and so on with the third magnet 53 and with the fourth magnet 56, if only the required characters are emitted. The contacts 17 ', 18', 19 ', 20' are therefore connected in the working position to the point line 50 when the call dialer responds to four lines, on the other hand, if the call dialer responds to four points, to the point or dash line, when dashes or dots are expected. In the present case, 17 'and 19' are connected to the dot line, 18 'and 20' to the dashed line, corresponding to the set letter c ( _:) .

Any signal will only then not actuate the electromagnet 23 'if the Lines 14 'and 15' not energized when they are connected to the electric magnet 23 '. Will however receive another character, 23 'is excited and interrupts in 58 the common Return of the electromagnets 47, 50, 53, 56, and the whole thing returns to the rest position return. As soon as the electromagnet 56 is energized, the contact 22 'becomes the Alarm device closed. If there is a pause, the alarm signal is given .; however, if another symbol follows, line 46 is energized and via the contact 21 'the tripping electromagnet 23' reaches, whereby the whole is returned to the rest position.

From this it can be seen that the new pager serves the same purpose as the mechanical-electrical device according to patent 42S428, but much simpler and clearer than this is.

Claims (1)

Patent claim: Call dialer for a signaling device according to patent 425428, characterized in that that a series of monitoring solenoids to be switched on one after the other to control the conformity of the incoming characters with the character set peculiar to the receiver serve by a relay order controlled by the incoming characters the monitoring relays are switched on one after the other and control contacts that alternately control the trip relay to the dashed or dotted line that is not live when the Dots or dashes are received in the correct order so that this trip relay and the alarm device can only respond after the complete character has been recorded, whereas in the case of deviations one of the signs the trip relay receives power ahead of time via one of the relay contacts and responds, see above that the device or the relays that have already been set return to the rest position- -no without the alarm circuit being switched on. 1 sheet of drawings.