SU11980A1 - Control-calling device for high-frequency telephone installations - Google Patents

Description

In the existing high-frequency telephone installations, at the moment of sending an alternating current from the call switch, a special relay passes the winding, so-called. „A train, which, energized, closes the ring relay circuit. The latter switches the inductor current to the primary winding of the ring transformer, the secondary winding of which is connected to the grid of the modulator lamp and the plus of the heat. The relay “engine” is very capricious due to its design and requires careful adjustment; the gap between the contact plates is very small, and the most insignificant spark is enough for the plates to decay, as a result of which the call to another station goes uninterrupted and, as it passes, without local control signals, such damage can last for several minutes. A station receiving a continuous call on this line cannot report damage. Other lines may or may not be at all, or if they are, they may be busy. More often, damage occurs frequently and causes disorder in the operation of the station.

The present invention has the overall elimination of these disadvantages by means of a control and ringing device with a MeiieHKH consisting of a differential bell for alternating current with four pairwise connected windings. The ends of the first pair of windings are adventitious to the feed ring of the ring relay, I and the ends of the other two to any points i of the secondary winding of the ring transducer connected to the circuit of a vacuum lamp.

{The drawing shows schematically the j part of a high-frequency installation using the proposed fixture, which consists of wires 1 and 2 included in the switch sockets and supplied to ring 28 and 29 of the ring relay 46. A wire 2 branches off the circuit through winding 34, 35 relays, so called. The engine 44, through the winding 20, 21 relays, not shown in the diagram, and through the bore 28 of the relay 46, to the wire 1. Anchor 37 of the relay 44 is designed to close the DC circuit through plate 36 (wire 3 and 4 ), in which the winding 32, 33 of the relay 46 is turned on. When the relay 46 is energized, its 28, 29, 30 and 31 attenuates the X core, and the cores 28 and 29 move away from the contacts 24, 25, turning off the talk circuit (wires 22 , 23), and measles 30 and 31 will come into contact with contacts 26 and 27, as a result of which the primary winding 15, 16 of the call transformer 45 will turn out to be connected to the inductor circuit (wires 5 and 6), not shown in the diagram. The secondary winding 17, 18 of the transformer 45 is connected by the q grid of the modulator lamp and the positive channel (19 and 43). The connected switch windings 9, 10 and 11, 12 of a differential bell with permanent magnets 41, 42 and measles 40 are connected to the switch circuit through measles 28 and 29. The secondary windings of the 13, 14, 8, 7 bell are connected to any points of the secondary circuit. transformer windings 45. Each of the windings 13, 14, 8, 7, 9, 10 and 11, 12 consists of two parts — one part from copper, the other from manganin.

The connection of the primary windings 10, 9 and 12, 11 between them is made so that the magnetic fields arising in them mutually fold, and the secondary windings 8, 7 and 14, 13 are connected as in normal telephone, polarized calls. The free ends of the primary winding 12, 9 are adhered to the core 28, 29 of the relay 46, and the ends of the secondary winding 13, 7 to the secondary winding of the transformer 45. If an alternating current passes through the primary winding, the magnetic fields of both cores will have the same direction, due to what the main call floor will be equally well; depending on the direction of the current at each moment of time, therefore the measles of the 40 ringer will remain in a state of equilibrium; if only current is passed through the secondary winding, then the magnetic fields excited by the current will have a different direction, as a result there will be a weakening of the field of one nanosecond of the main magnets and the amplification of the other; depending on the direction of the current, magnetisation occurs, therefore, measles 40 will in turn be attracted to one, and another core of the core will be AM.

work. At the time of the call, as; It can be seen from the diagram that two currents will occur in the calls, as a result of which 40 measles are attracted to one of the cores, which at the moment will see an amplified magnetic field created by currents simultaneously and in the same direction flowing around the primary and secondary windings. Anchor 40 will remain drawn to this core and the bell will not work, since transformer 45 is powered by the same inductor that supplies current to wires 1, 2 and 5, 6, as a result of which the changes in current direction in both windings are perfectly synchronous. In the case of an arbitrary connection of the core 37 of the relay 44, with the plate 36, the current will pass only on the secondary winding of the bell, since the ring relay will turn on the transformer in the inductor circuit, and there will be no current at points 28, 29, the bell will give a normal call and warn of damage . The primary winding of the bell permanently included in the negotiation line, in the author's opinion, is not a significant drawback, since the windings with this connection have a rather large ohmic resistance, and the absorptivity by the bell of talk currents is almost completely invisible.

The subject of the patent.

1. Control call device of high-frequency telephone installations, characterized by the differential name for alternating current with four windings, from KOBbix windings: windings 9, 10 and 11, 12 connects in series with each other and connected to the core 28, 29 conversational the circuits of the ring relay 46, and the windings 7, 8 and 13, 14 are interconnected in series and connected at any points 17, 18 to the output side of the transformer 45 connected to this side of the modulator network.

2. The form of implementation described in paragraph 1 of the device, consisting in that the winding of the coils consists of two parts, two made of copper wire, to the other of manganin wire. ,

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