SU65840A1 - Blenker - Google Patents

Description

The subject of the present invention is a blender for battery-free telephone switches installed; a team of w-ships, etc., providing a fixed call signal by mechanical self-locking (instead of a signal that disappears with the termination of the call). Such call fixing increases the reliability of the .LINK and simplifies the maintenance of the switch, as it eliminates the need for constant monitoring of the call signals and the loss of the Call when there is no such call from several subscribers at the same time. One turn of the inductor is enough for the switch to work on the switch. In the environs of the talker. There is a checkbox with the number of the calling subscriber. This signal will be visible in the window until the switch operator switches the key to the talk position. This completely eliminates the possibility of connecting to the subscriber who did not make the call.

The essence of the invention, which consists in the special constructive implementation of the blenker and consists in TOL1, that about: the questionnaire key is provided with a cam, which

transferring the key to the polling position returns the blendor flag to its original position, preparing it for the next call, as shown in the accompanying drawing, Fig. 1 of which the blender is offered is shown in its initial position (the blenker can receive a call if you rotate the interrogation key in the position of FIG. 2), and “and FIG. 2 - in the position after receiving the call.

Here is indicated: / -contact blenders, 2-flax ok, o-electromagnet, 4 - measles, 5 - spring is xav, 6 - working spring, 7 - cam on the axis of the questioning key, 5 - tooth of the flag, 9 - handle of the questioning key .

When connecting to the ringing current switch from the inductor of the subscriber unit, the electromagnet 3 of the blender is excited. The latter is triggered by the first half-wave current. This triggering outbore IB, that measles 4 is attracted and the flag is released, KOTOTbiii is moved to the right by the action of spring 6 (Fig. 2). In this case, the E window of the blender appears as the caller's number. Since the check box is covered with self-colored paint of a light tone, and the figure is depicted in black paint, the call signal is visible both in the light and in the dark.

When the blender is triggered, its contacts are closed and include (parallel to the winding of the electric blender lock) the bell giving the acoustic signal to continue the whole call by the subscriber.

To respond, the station is turned with the knob 9, the axis of the interrogation (; 1 stitch) key; the electromagnet 3 is turned off, and the Bi iSbiBa general subscriber is connected to the telephone set of the switch.

Since the cam 7 sits on the axis of the troshnogo, the latter, when

turn (Key presses the flag in its original position (Fig. 1); in this case, measles 4 falls behind the tooth 5 of the flag and locks it until the next call.

And redemt and z obrete and and

The blender is mechanically self-locking for telephone switches, t 1 and h and with the fact that the axis is interrogated (the key is equipped with a cam, which, when the key is transferred: returning the blenker flag to the initial position, prepared it for the next call .

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FIG. 2

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