SU10647A1 - Seismograph - Google Patents

Description

The present invention is intended to record jolts and displacements of the earth's crust, for which the described seismograph is equipped with a ball that can come in contact with the surrounding collector, each plate of which is connected to a separate electromagnet, which marks the direction of the perceived jolt. In this case, recording on a rotating drum is used to register displacements of the soil.

In FIG. 1 schematically depicts a general view of the proposed seismograph; FIG. 2 shows the wiring diagram of the seismograph and FIG. 3-device of spherical tambour in a modified form of execution.

The device of the proposed seismograph is as follows. The rack 1, at str 2, is suspended from a ball 3, which is integral with the load 4. The rim 3 is installed in the center of the collector ring 5, which, like (dynamo collector, from insulated from each other) Each plate is connected by a wire with one solenoid in the group of solenoids 6. The change in sensitivity of the seismograph is achieved by changing the distance between the inside of the collector and the rim by moving the height of the cylinder 5a provided with a thread 7. At the time of pushing the satellite 3 moves and, coming in contact with the collector 5, closes the current in the circuit from the current source 9. Under the influence of the current, a solenoid corresponding to the closed plate of the collector 5 pulls in the iron core 10, the figure corresponding to The azimuth under which the device perceived the impulse. At the same time, the core 10 prints the indicated figure through a transfer paper on a paper circle fixed on the disk 11. At the moment of current closure by the electromagnet 12, the writing The mechanism 15, which in the state of inactivity, is pulled away by a spring 16. When the soil moves evenly for a long time, a pencil 17 with a pin 18 sliding along a screw thread 19 rotating on the same axis along with the drum 13 writes a helix on the latter. Longer jolts are perceived by the load 4, which, deviating but not breaking contact with the collector, turns the tang 3 around the center 20. The last plane 21 raises the sleeve 22 coupled to the sliding arm 23, the opposite end of which is connected to the stand by a ball tip 24. The lever 23 moves the drum 13 vertically. When the drum moves along a circle to the vertical, the seismogram is recorded as a curve running along a helix. The drum 13 is set in motion either by a clock mechanism 24a or by another engine. In a modified form, the implementation of the swing mechanism according to FIG. 3, the cylinder of the latter, for greater sensitivity, is filled with liquid, and the adjustment of the collector is carried out by raising or lowering the collector itself. The ball is made hollow in this case. The entire device is mounted on the platform 25, the horizontal position of which is adjusted by screws 26.

The subject of the patent.

1. A seismograph, characterized by the fact that the ball 3, 4 of the seismograph is surrounded by a collector ring 5, which is installed at a height adjustable by means of a thread 7 cylinder and the individual plates of which are electrically connected in series with one of the solenoids of the group of solenoids 6 equipped with retracting cores 10, having embossed marks on the upper end, used to imprint them through transfer paper on a paper circle mounted on the disc 11 to mark the direction of the push.

2. In the seismograph described in p. 1, an apparatus for recording a seismogram is adapted to control the writing mechanism 15 with a pencil 1 / with the measurine 14 of the electromagnet 12 connected in an electrical circuit in series with the system of electromagnets b, which is writing The mechanism 15, in addition, is provided with a pin 18, which slides when the soil moves evenly over a helical thread 19 on the axis of the drum 13, in order to record a seismogram on it in the form of a helix.

3. The form of implementation described in clauses. 1 and 2 of the seismograph, characterized in that, with a view to long-amplitude shocks being perceived by the load 4, the ball is arranged to enclose the ball 20 and has a notch bounded by a plane 21, when the ball 3 rotates, it serves to lift the clutch 22 that is engaged with one end of the sliding lever 23, the other end of which is rotatably fixed in the rack 24, which lever serves to vertically move the drum 13, in order to record a seismogram on it with long amplitudes in the form of curves running along helical lines.

4. Modification described in p. 1-3 seismographs, characterized in that the ball 3 is hollow and immersed in a cylinder filled with liquid.

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