DE253843C - - Google Patents

Description

IMPERIAL

PATENT OFFICE.

PATENT LETTERING

- JVr 253843 CLASS 21 #. GROUP

BASILE SOLDATENCOW in PARIS.

Patented in the German Empire on February 7, 1911.

The invention relates to an electromagnetic drive device which allows exert different effects with the aid of a single coil with a single winding.

In the drawing, an embodiment of the drive device according to the invention is shown schematically.
Fig. Ι is a circuit diagram;

ίο Fig. 2 to 4 show the drive device at different positions of the drive elements.

The drive device according to the invention (Fig. I) consists of a solenoid A, which is switched into an electrical circuit B (whose power source / is). The circuit B is divided into two branch lines outside the solenoid, of which one branch line C is provided with a switch D or some other device which allows only such currents to flow through the branch line that the magnetic field generated is sufficient to attract or cause certain magnetization of the core G. In the other branch line E , a switch F or some other device is switched on, which allows currents to pass through this line such that the magnetic field generated is strong enough to cause a stronger attraction or magnetization than before. This enables different effects to be exerted with a single solenoid and a single electrical circuit.

The operation of the drive device is as follows:

Let the solenoid core G be suspended from a fixed point / by means of a spring H, the tension of which can be regulated.

Closing switch D creates a magnetic field in the solenoid. The core G is therefore attracted, with the spring H being stretched. When the switch is opened!) The magnetic field disappears and the core G is pulled back by the spring which contracts again.

With the help of the switch F one can produce similar effects.

If the current is only allowed to flow through it for a short time, it becomes a weak magnetic one Field generated, while a stronger magnetic field can be generated with a longer current duration.

By convenient simultaneous or successive handling of the two switches D, F , it is possible to generate magnetic fields of different strengths which cause the core G to be magnetized more or less. The effect of this magnetization manifests itself in successive back and forth movements of the core G and the spring H as well as in the attraction or repulsion of organs of a certain weight and position, depending on whether the generated magnetic field is sufficient or not to influence these organs.

The device shown in FIGS. 2 to 4 is used in practice. The solenoid or electromagnet α includes a fixed core b and a movable core c. One branch line goes from the line d connected to the current source β (and provided with an ordinary switch f ) to a stand g in which a current-conducting lever i is rotatably mounted on a pin h. The lever i carries a contact / which can be brought into contact with an electrically conductive lever m. Of the

Claims (1)

Lever m is mounted in a likewise conductive stator η which is connected by line ο to one end of the winding of solenoid a . The other end of the winding is connected to the power source e by the line ν . The lever m is also provided with a non-conductive extension m ¹ which is hinged to the movable core c of the solenoid. ίο The contact j sits in a holder k that can be moved on the lever i. The lever i also carries an insulating p, q the adjustable between two stop screws, and is r, of which the screw is mounted q m to the end of the lever. Tension springs t and u act on levers i, m. The free end of the lever i carries an adjustable counterweight s. The line 0 is connected at the point y by a line w to the line d at point χ . The line w forms the other branch line and can be switched on and off by a switch ζ. When the switch ζ (Fig. 2) is open (the switch f is closed) the circuit through the line d, the stator g, the lever i, the contact j, the lever m, the stator n, the line 0, the solenoid α and the line ν closed. As a result, the movable core c is attracted by the solenoid and comes from the position according to FIG. 2 to the position according to FIG. 3. When the lever m, m ¹ is rotated, the screw q lifts the insulating piece p and thus the lever i , thereby removing the contact / from the lever m and interrupting the current. Since the core c is no longer attracted by the solenoid, the levers m and i return to the position of FIG. 2 under the action of their springs u and t , the contact j again coming into contact with the lever η and closes the stream again. As a result, the core c is attracted again, the current is interrupted again, and so on. Through the rapid alternating opening and closing of the current with the aid of the self-interrupter j ~ m , a rapid, to-and-fro movement of the movable core c can be produced. If you now close the switch ζ (Fig. 4), a current goes through the line d, the branch line w, the switch z, the line 0, the solenoid α and the line υ. This current generates a magnetic field in the solenoid, the strength of which is regulated, as a result of the longer current duration, so that it has a greater strength than the field produced with the aid of the first branch line. Then the stronger field generated by the closing of the switch ζ during the activity of the interrupter jm holds the movable core c firmly and at the same time causes a stronger magnetization of the fixed core b. The oscillation amplitude and the duration of the movements of the core c can be regulated by adjusting the screws q, r and the weight s. For some applications, an armature / is attached in front of the magnetic core b , through the movement of which the magnetic force generated in this core can be used. With the armature I , either by direct magnetic attraction or by means of interconnected organs, the switch ζ can be influenced, for example, in such a way that it is automatically opened after a certain current duration. The armature I can also influence a locking device for the switch f in any way. In other cases, the solid core b can be designed in such a way that it influences any organ either directly through magnetic attraction or indirectly through transmission elements of any kind. The switches f and ζ can also be connected to one another in such a way that, under certain conditions, they influence one another's movements. An adjustable stop screw can be attached above the movable core c. The solenoid or electromagnet can be replaced by any winding or coil, which can generate a magnetic field and attract a core or armature. The invention is for the operation of all types of apparatus and for the production electrical, electromagnetic or mechanical effects applicable. Pat τ claim: Electromagnetic drive device with a solenoid driven by a single Power source is fed and with a fixed core and a movable armature is provided, characterized in that the excitation coil of the solenoid with the Battery is connected by various branch lines, in which by suitable Devices the power supply is maintained differently no long times, and in such a way that the duration of this current short-circuit is shorter in individual branch lines as the time in which the solenoid is fully energized, for the purpose of making the various Exploiting strengths of excitation of the same solenoid for different uses. For this purpose ι sheet of drawings.