DE302925C - - Google Patents

Description

IMPERIAL

PATENT OFFICE.

The subject of the invention is a cover system for railways with automatic AC electrical signaling is suitable. Where such signal systems with Light signals work, was for every signal except for the usual line relay or relays, which are influenced by the passing train, a special signal relay is required, that is the dependence of the signals

ίο made among themselves.

Is known as a replacement. of a relay is an inductive coupling of two signal circuits between the green light and the red light of a signal in the manner that the red light flux is inductively weakened by the green light flux to the point of ineffectiveness, so that the red light appears when the The green light goes out. It is also known to influence a signal from the current The next preceding signals in such a way that a signal stream only comes about in one signal can, if in the next signals ahead, a certain other circuit closed is.

The essence of the invention is on the other hand in that the signal relay that the dependence of a green light signal from the one ahead Produces red light signals, is replaced by the Primary winding of a transformer is switched on, its secondary winding through the current induced in it when the red light shines, the section relay of the next previous signal excited. The section relay therefore closes its contacts and thus the circuit for the green light of the associated signal.

This avoids working with contacts and moving parts Signal relay the appearance of a green light from the creation of the red light flux made dependent on the next signaling system ahead, and the system gains thereby considerably in terms of operational safety and simplicity.

Particularly valuable further improvements result in the new system if the Secondary winding of the transformer induced by the red light stream to achieve a safe high voltage with the secondary winding of the section transformer, which supplies the entire signal streams, is connected in series, and if further that Section relay has an additional contact lever to completely replace the signal relay, the field from the red light transformer of the next signal box ahead Power is supplied, and then after closing the self-closing contact opens to the The relay armature drops again after the self-closing contact later becomes ineffective as a result of the arrival of a train. .

The drawings explain the new circuit by means of circuit diagrams in which each of effective current flowing through the lines strongly and the others weakly drawn are shown. It is:

Fig. Ι a circuit diagram of the earlier signal system,

FIG. 2 is a circuit diagram of the new signal system, FIG. 3 is a circuit diagram of the new signal system in a somewhat simplified version.

In the earlier signal system (Fig. I) were with the help of a signal relay besides the Section relay the circuits the following:

The tracks are in individual between the

Sections ι, τ ^α , i ^b etc.

divided and isolated from each other

ίο Rails of each section are put under AC voltage by track transformers 2 ^a , 2> ^{a un (} i 2 *, 3 ^h etc., by being connected to their secondary windings 3 ' ⁷ , 3 *. Accordingly, the armatures 4 ¹¹ , 4 * the section relays 4 ^a , 5 "and 4 *. 5 * etc. are energized, as long as a train 6 does not short-circuit the tracks, for example in section 1 *, and thus de-energize the connected relay armature 4 *.

In the signal unit (T) there is now a transformer y ^b , 8 *, the secondary winding 8 ^{b of which} first energizes the field 9 * of a signal relay 9 *, 10 * •, and the transformer winding 8 * continues to generate a current that passes through the Armature 10 * of the signal relay and the line 11 * to the red light 12 *, furthermore via an iron resistor 13 * and back to a point of the winding 8 *, at which the right voltage is present. The red light 12 * lights up, and its current also does not find its way back to the transformer winding 8 * via the winding 14 *, which is parallel to the red light, since the winding 14 * completely throttles it as long as there is no other iron core shared with it arranged winding 15 * eliminates the inductive resistance by counter-magnetizing effect, so that only its low ohmic resistance is effective.

Since the signal relay g ^b , 10 * has current in the field and armature, it keeps its contact 16 * closed, and the connecting lines 17 *, 18 * leading to the next earlier signaling units (T) are connected to this.

The green light 19 '' of the signaling mechanism (?) Remains de-energized because its con-

still another contact 23 * switched on, which, as said above, only when the The driving lock is closed and accordingly the formation of a green light signal as well depends on the driving lock position.

The rail transformers are in the secondary winding 3 ", 3Z) by iron wire resistors 24"; 24 * protected against overload, and the tracks are connected by the usual throttle pushers (impedance connectors) 25 ^, 25 *.

^{In the signaling unit (T),} a current first flows from the section transformer 2 *, 3 * over the tracks i a in the armature 4 "of the section relay 4 ^a , 5 ^a . The field 5" of this section relay also receives "from the section transformer 7", 8 ^a via the connecting lines 17 *, 18 * and the contacts ΐ6 ^έ , 23 * power; the relay closes the contacts 22 °, 20 ⁿ , the first of which strengthens its tightening and holding, while the second contact 20 " ^{supplies the green light 19" and the • travel lock motor 2ΐ Λ} with power so that free travel is displayed and the travel lock is brought into free travel position . The current flowing through the green light 19 ", when flowing through the winding 15 ^, simultaneously demagnetizes the ^{common iron core magnetized by the winding I4 J} , the resistance of this winding 14" is reduced accordingly, and it now acts as a short circuit to the red light I2 ^a , so that it goes out. At the same time the red light current of the relay armature is carried disappearance IÖ ^a deenergized, and its contact ^ΐ6 Λ opens, but without this exerts an effect as the mentioned self-closing contact (22, not shown) the closest past relay (4, 5, not shown) is closed holds.

In the new system (Fig. 2) the signal units (T), (T), (T) do not contain a separate signal relay more, but its effect is replaced by an additional transformer 26 ", 27" etc., in the following way:

In turn receives each track section i, i ^a, i ^b, etc. of the secondary winding 3, 3 ^Λ, 3 * a Geleistransformators 2 ", 2> ^a w ^us. Flow unless the train 6 short-circuits the tracks.

As the train now crosses the track

i ^c short-circuits, armatures 4 *, 4 ° are de-energized, so that

in

the the

Relay signal

clock 20 *, which is dominated by the 4 *, 5 * section relay will, its circuit is open; the same applies to the travel lock motor connected in parallel with it 21 * de-energized, and the travel lock 21 * is in the stop position, in which also its control contact 23 * is closed. Another contact 22 * on the section relay 4 *, 5 * is used for this; the field 5 * this relay after it once! seeds connecting conductor 17 ", 17 * .. 17 = via the

work (T), (T) the green lights are off. In the signal mechanism (T) flows from the secondary winding ' tion 8 * of the section transformer the current on the one hand via the common here for all plants

is closed, as a self-closing contact to continue to supply power to the relay 4 *, 5 * to keep closed even after his previous field supply circuit has been opened.

In the connecting lines 17 *, 18 *, in series with the contacts 16 *, there is a primary winding 26 * of an additional transformer 26 *, 27 * to the red light 12 * and via the iron resistor 13 * back to the transformer winding 8 *; the red light 12 * lights up. On the other hand, it flows from the secondary winding 2j ^{c of} the signal mechanism (T) via the

connected part of the local line transformer winding 8 ^C and via the closed ^{travel lock contact 23 C} a current via the connecting ^{conductors 17 °, i8 c} to the relay field 5 *. This relay remains open due to the lack of current in its armature 4 * as long as the train 6 still short-circuits its armature.

In the next preceding section i ^a , however, is the relay armature / \. ^a is supplied with power, the relay therefore closes not only its self-closing contacts 22 ^Λ but also the green light contact 20 ^Λ , and the green light 10 / like the ^{travel lock 2i a} come into free travel position, while at the same time the red light i2 ^a due to the inductive effect in the windings 14 ″, 15 ^ goes out.

The route relay / \ ^a , 5 ^Λ also has a contact 28 ^fl , which is opened when the other contacts 22 ^Λ , 20 ^a are closed and is switched into the connecting line 18 *. This causes that * the additional transformer 26 *, 27 ^ is de-energized when turning on the green light io / ¹ at the same time the secondary winding 27 in the signal works (J), so that the relay box receives 5 ^fl in Signal Works @ ^α only by its self-closing contact 22 current .

In the third circuit (Fig. 3)

everything essential as with the second, only the secondary winding 27 ^ of the additional transformer 26 ^{° C} , 27 ° is found to be sufficient for power generation alone, since with 85 volts it gives enough voltage to operate the relay without the primary winding 26 ^C unduly weakening the red light current, and it is accordingly with the omission of their one behind the other. circuit with the secondary winding 8 ^{C of} the section transformer directly their connection to the main connection conductor I7 ^C

· performed. .

^{The extinguishing of the red light I2 a} caused here by the induction coils 14 ″, 15 ″ when the green light ic / is switched on can have the same effect by means of a relay which, when the green light flux flows through, an im. Red light circles

lying contact opens, or caused by some other circuit.

Claims (4)

Godfather t-an sayings:
i. Electrical .Zugdeckungsanlage with current influencing of a signal from the next one ahead and with the use of inductive coupling of signals with one another, characterized in that a transformer primary winding (26 *) is switched on to achieve the dependence of a signal circuit on the undercurrent of an upcoming signal in the circle of this last one whose secondary winding (27 *) feeds or triggers the first circuit. * 2. Train cover system according to claim 1, characterized in that the transformer (26 ⁶ , 27 *) serves to replace a signal relay in that its primary winding (26 *) lies in the circuit of the red light (12 *), while its secondary winding (27 *). is connected to the section relay (4 ", 5") of the next previous signal ((a)) in such a way that its closure and thus the switching on of the green light (19 °) present there only with the help of this from the red light (12 *) lying ahead dependent secondary current can come about. 3. A train cover system according to claim 1 or 2, characterized in that the transformer secondary winding (27 *) is connected in series with some or all of the turns of the secondary winding (8 *) of the line transformer (y ^b , & ^b ) for current amplification. 4. A train cover system according to claim 1, 2 or 3, characterized in that the section ^{relay (4 ", 5 n} ) has a contact (28 ^a ) closed when the relay is open, through which the red light secondary current flows, and which only occurs when the relay is closed after the closing of a self-closing contact (2 2 ⁿ ) which keeps the relay closed, it opens and thus interrupts the red light secondary current. For this purpose 2 sheets of drawings.