DE107840C - - Google Patents

Description

IMPERIAL

PATENT OFFICE.

The present invention relates to one for various purposes, but more particularly in telegraphy Usable electrical relay of high sensitivity, which essentially consists of one between the cores of a Electromagnet and a polarized electromagnet arranged free, light, themselves anchors moving within narrow limits.

In the accompanying drawing, an embodiment of the present relay is illustrated, namely in

Fig. Ι in side view, in

Fig. 2 in cross section and in

Fig. 3 in detail.

FIG. 4 is a partial section along line xx in FIG. 1.

The armature D of this relay is not supported by an axis, a carrier or pivot bearing, nor by a spring, but is completely free-floating, and its upward and downward movements are exclusively subject to magnetic influences.

The soft iron armature is arranged horizontally between the soft iron cores of a double electromagnet A and the cores dd ^{1 of} a polarized electromagnet. The latter is formed from a permanent magnet B , the poles of which are magnetically connected to the two cores dd ¹ surrounded by conduction wire coils bb ^{1, with a copper piece C 0 in between.}

C (Fig. Ι and 3) is a circular commutator for alternating passage of the electric current through the coils bb ^l and consists on the one hand of a U-piece BEZW. Bracket U with two contact legs isolated from one another and, on the other hand, made up of four contact pieces i \ 2 ¹ , 3 ¹ , 4 ¹ , each of which is provided with a clamping screw.

As long as no current passes through the coils of the electromagnet A and through the coil end b ^l , the armature D is attracted by the permanent magnet B and touches its ends, which are each located within a channel 0 of a rubber arranged on metallic supports 5 S ^{1 -} Insert piece O is located (FIG. 4), the ivory ends z'z ^{1 of} the metal screws ν ν ¹ , which are arranged on the above-mentioned carriers 5 S ¹ (FIG. 2), which also carry metal screws ww '. The ends of the latter are covered with platinum and are designed to cut off the current of the local battery as soon as the armature D comes into contact with them. The armature D has a very small cross-section, for example 1.5 mm, and is provided with a platinum coating at its ends so that the contact of the armature with the screws w n> ^{x is} safe. A metal part Z, which carries the magnet B with the coils bb ¹ , can be adjusted differently by means of a screw Z ¹ on a support Z ² and allows the poles of the magnet B to be removed from the armature D or to be brought closer to it, as the case may be the same should be tightened with more or less force.

i, 2, 3, 4 (Fig. 3) are four clamping screws, one of which (1) on the one hand with the Wire / for the line power line and other

Claims (2)

on the other hand is connected to the wire for the electromagnet A , ^{which ends further in the Conlactstiick 4 1.} The second clamping screw (2) is conductively connected on the one hand to the contact piece 2 'of the commutator C and on the other hand through the wire L ² to earth. One end of the winding wire of the coils bb ^{l of} the magnet B is connected to the metal piece Z , which in turn is connected to the contact ^{piece 1 l of} the commutator C. The other end of the same wire, on the other hand, is connected to the ^{contact piece 3 1 of} this commutator, so that if one puts the contact piece i ¹ with 4 ¹ and the ^{contact piece 2 1} with 3 ¹ in a conductive connection by means of the bracket U , as shown in FIG 3 is shown, or also 3 ¹ with 4 ¹ and i ¹ with 2 ¹ , one has always connected the lead wire of the coils of the electromagnet A with the lead wire of the coils bb ^{1 of} the magnet B one behind the other. Terminals 3 and 4 are respectively. connected to the beams S ¹ and S and consequently to the screws ww ^x . The clamping screw 3 is also connected to one pole of the local battery, the other pole of which can be connected to the clamping screw 4 through the intermediary of the station's receiving apparatus. By adjusting the screws vv ^l n> and w ¹ , the armature D can be brought closer to the poles of the electromagnet A or removed from them. The mode of operation of this relay is as follows: Assume that a remote current comes through / and 1 and acts on the relay while the bracket U of the circular commutator C is in the position shown in FIG. The current is then from 1 first through the lead wire of the coils of the electromagnet A, then across 4 ¹ one leg of the contact bracket U, 1 ¹ and Z through the lead wire of the coils bb ^{l of} the magnet B to the .Contactstück 3 ¹ and from because through the second leg of the bracket U, 2 ', 2, L ^{2 reach} the earth. In the solenoid A, the current is always cause the magnetisation of its core, and in the present case in the coils bb ¹ of the magnet B reaching current will act in the magnetizing sense, that is the magnetisation of the cores dd ^l multiply, which are therefore a stronger attraction force on the Wield anchor. Nonetheless, the action of the electromagnet A on the armature D should be the result of the. Cores dd ^l exceed the effect exerted, and consequently the armature D will be drawn towards the electromagnet A , since the permanent magnet B and its coils are calculated in such a way that the magnetic field of the polarized electromagnet B, bb ¹ , dd ^{1 is} always smaller and less is stronger than that of the electromagnet A. You will let the relay work with this position of the bracket U of the commutator if you apply strong currents. If, however, the current is very weak, in order to increase the sensitivity of the relay, the contact legs of the commutator bracket U are set ^{so that i 1 is} connected to 2 ¹ and 3 ¹ to 4 ¹ . In this case, the current coming from 1 goes, as before, first into the winding of the electromagnet A, then across 4 ¹ , the one contact lever of the bracket U, through 3 ¹ , the lead wire of the coils bb ^{1 of} the magnet B, the piece Z, 1 \ the second contact leg of the bracket U, 2 ¹ and through JJ- to earth. In this case, the effect in the electromagnet A will be the same as before, but there will no longer be any increase in the attractive force in the cores dd ^{1 of} the coils bb ^l. Rather, these nuclei will instantly lose their attraction, since the current will act in them in a demagnetizing sense, so that the electromagnet A can easily attract the armature D , which is no longer, or almost no longer, held back by the polarized magnet B bb ^l dd ^l will. In the first case one works with the difference of the forces between the polarized electromagnet B bb ¹ dd ^l and the electromagnet A and in the second case under the joint action of both forces, for while one is working the action of the other is interrupted. It is particularly important that the anchor D is freely movable within the channel 0, that is, protected against any mechanical friction, which is a great guarantee of sensitivity. 'Each time, when the armature from the electromagnet A D tightened, thus lowered, is the same in contact with the screws ww ^l and slept the stream of Ortsbatlerie. As soon as the current is interrupted, the electromagnet A loses its force of attraction, while the polarized magnet B bb ¹ dd ¹ assumes it again or at least receives it, and the armature D is attracted by the cores dd ^x , whereupon the screws w and w ¹ do not touched more and the local battery current is interrupted. Patent -A ν s ρ r 0 C η ε: ι. Telegraph Relay, characterized by the connection of a vertically arranged one above the other, of a polarized one and an ordinary electromagnet with an electromagnet system therebetween the two electromagnets Fixed stop screws or Local current connection pieces light anchor with limited deflection, which is nowhere stored and only through magnetic influences in its rest position is maintained, for the purpose of achieving the greatest possible sensitivity of the Relay to achieve. 2. In the relay according to claim ι the use of a switch through which the Windings of the polarized and ordinary electromagnets arbitrarily for the purpose of strengthening or weakening the polarized one Electromagnets can be connected to each other. For this purpose ι sheet of drawings.