SU42605A1 - Step finder for selective communication - Google Patents

Description

The present invention relates to a step finder device with multiple rings with brushes for selective communication. In the multiple field of such a finder, the firing contacts are applied, so that the signal bell does not work if the polarity of the pulses does not correspond to the instrument's cipher.

In the proposed step finder, the circuit diagram of which is shown in the drawing, the EM represents the searcher's electromagnet, for example, 25 numbers, the A-polarized relay with neutral regulation, and its contacts, the B-call, letting you know that an order (to go to the telephone, get to the boss, believe the time, etc.); L-lamp; V-relays with contacts Z, Z, Z, K-auxiliary key.

Work seeker proceeds as follows. The switch located at the dispatcher station sends current pulses of different polarity along the line. The number of pulses is 25. The alternation is {- and is special for each receiving station. For all those stations connected to one wire, in which connections on a multiple field of the searcher correspond to the cipher of signals, the bell will ring (or respond to some other alarm), for all the others

there will be no alarm. If the first direction of the current was such that relay A closed the contact a, the searcher would be prepared for action (its brushes stand in the zero position). When Relay A is turned off, the finder will rearrange the brushes to the plate / contacts, etc. After the finder has moved to the contact plate 5, the current direction must be changed, then the finder will be blamed on and move the BROOM brushes. If in a timely manner, depending on the connection of the contact plates, the polarity of the pulses is changed on the multiple field of the searcher, the brushes of the searcher will reach the plates 24 and the call S will begin to ring. The last closure of the plate 25 serves to set the brushes of all searchers to the zero position. As soon as the finder is gone from zero, the indicator lamp L lights up immediately, which will remain on all the time until the finder returns to zero. It serves to control the operation of the circuit. If a current pulse in a polarized relay A is given an irrelevant polarity, then relay B is activated, which: 1) contact Z isolates the bell, 2} contact Z sends pulses of any polarity to the winding HY, 3) contact Z blocks, 4) contact Z prepares its turn-off by shorting on a zero contour plate. In this case, the searcher, although he will also make one turn, but the call will not ring. If, at the first current pulse, relay A closes contact a, the searcher will not move the brushes, but the call B will start immediately. This will be a circular call. To check the time, it is necessary to give pulses of the same polarity as for a circular call, only rhythmically sequence them with pauses. A trial step finder for selective communication can be applied 1) for a dispatch call on the communication paths on enterprises (especially in cases where the number of points enclosed in one wire is large); 2) for an alarm call at the watchdog or fire department of the warehouses; 3) to call various persons in the institution, etc.

The subject matter of the invention.

Stepper finder for selective communication with multiple rings with brushes, characterized by the use in the multiple field of the searcher of breaker contacts, connected so that the bell does not work if the polarity of the pulses does not correspond to the code of the device.