SU132130A1 - Stopwatch Checker - Google Patents

Description

Devices for checking stopwatches are known, containing solenoids for launching stopwatches and a reference contact element for monitoring their readings. The lack of such devices cctCTokt in the complexity of the process of controlling and counting the time from the moment of starting the stopwatches.

In the device described, this disadvantage is eliminated by using a 15 Hevr counter to measure the reference time.

The core of the described device is shown in the drawing. When you press the / (start) button: yuda.c voltage is 276f to the winding of relay 2, which itself is connected by contacts 3, and at the same time as a result of the closure of the contacts - relay 2 through the contact group 5 |) barely 6, the contact group 7 of the switching relay 8 and the contact group 9 of the switching-waiting, rede, equipped with windings W and //, the voltage pulse is applied to the winding of the switching relay 8 and the winding 10 of the switching-waiting relay. When a switching and switching-switching relay triggers the moving contact of the contact group 7, the relay 8 moves to the lower position and is held in this position until the end of the pulse. During the pause, the moving contact of the contact group 7 returns to its original position. The moving contact of the contact group 9 of the switching and waiting relay remains in the same position due to the application of a constant voltage to the winding // switching and waiting relay through the closed contacts 4 of this relay, as a result of which the second pulse goes to the pulse winding relay / 2, which when triggered by contacts 13, it supplies a voltage of 27 volts to the windings of the solenoid 14, 5, 16 stopwatches and the winding of the working relay 6. When the relay 6 operates, its contact group 5 closes the pulse circuit of the counter, not shown at hcr # 132130-2 tezhe, opens the power supply circuit and the windings of relay 12, and using strips 17 breaks the power supply circuit of the windings of the starting and waiting relays, which also leads to the readiness of the starting circuit of the counter to the next cycle.

When the button 18 (stop) is pressed, through the contact group 19 of the relay 20, a voltage of 27 V is applied to the winding of the relay 21, which is self-blocked by the contacts 22. At the same time, the contacts 23 of the relay 21 are closed, resulting in a pulse through the contact group 24 of the relay 20, the contact group 25 a switching relay 26 and a switching relay contact group 27, equipped with windings 28 and 29, a voltage pulse is applied to the winding of the switching relay 26 and the winding of the switching and waiting signal relay When the first pulse of the switching and switching-waiting the relay of the moving contact of the contact group goes into position and is held in this position until the end of the impulse. During a pause, this contact returns to its original position. The moving contact of the contact-driving relay contact group 27 does not return to its initial position due to the application of a constant voltage to the winding 29 through the closed contacts 30, which ensures the passage of a second pulse to the winding of the pulse relay, when activated, the 27 in to the electromagnets 14, 15, 16, including stopwatches, and on the winding of the working relay 20. The working relay 20 triggers and opens the contact group 24 pulse counter circuit. The contact group 19 in this case, the constant voltage in the 27 in is disconnected from the winding of the relay 21 and from the winding 29 of the switching-waiting relay, which will put these relays in readiness for operation at the next eM cycle.

A button 31 (ready) serves to remove april at 27 and from retext 20 to bring the stop pattern to its original position. To control the supply voltage and determine the polarity of the supply voltage supplied to the installation before turning on the installation, use the button 32 to connect the measuring device 33. To turn on the counter simultaneously with the start of the seidomers, it is connected to the chronometer output.

Subject invention

A device for checking stopwatches, containing solenoids for starting the stopwatches and a reference contact chronometer to monitor the readings of the stopwatches, characterized in that, in order to simplify the process of monitoring and counting the reference time since the start of the stopwatches, a counter is used to indicate the reference time included in chronometer output, and a relay to turn on the counter simultaneously with the start of the stopwatches.