DE598722C - Signal direction for crossings on single and multi-track railways - Google Patents

Description

GERMAN EMPIRE

ISSUED ON
June 18, 1934

REICH PATENT OFFICE

PATENT LETTERING

CLASS 2Oi GROUP

in Utrecht, Holland

Addition to patent 597

Patented in the German Empire on December 10, 1932 The main patent started on April 13, 1932.

In patent 597,930 there is a signaling device described for crossings on single and multi-track railways with insulated rails, in which insulated rails located in the crossing when driving on the block section be conductively connected to rails in front of the crossing. The present The invention relates to the development of that circuit; in particular, it allows the Reduce the number of relays used. The circuit diagram of the enclosed The drawing shows the arrangement clearly. In the present circuit are Assumed three rails, isolated from one another, lying one behind the other, with the middle rail is arranged in the crossing. Of course, the same circuit can be used can also be carried out with two rails that are opposite each other and are offset from one another in the crossing.

The operation of the new circuit can be seen in the accompanying drawing.

For example, if a train drives into the insulated rail A from the left, this rail is bridged with the earthed rail E and the track relay Gi? / shorted. This closed-circuit relay drops out and switches contacts 1 and 2. The auxiliary relay HE I is switched on by contact 2. 4 by the contact of this auxiliary relay, the Schienet is connected to the crossing rail lying on the C, and thus the track C is given the same potential as the rail A. Through contact 3 of the auxiliary relay HEI , the insulated rail!?, Which lies behind the crossing, is connected to earth and the track relay GRII, through which the closed-circuit current flows, is short-circuited and made to drop out. The contact 2 "applies the auxiliary relay HE I to a self-holding contact, so that the same is now independent of the switching operations in the track relay GRI , since the power is supplied via the track relay GRII. The contact ι of the track relay GRI interrupts the power supply to the clearance lamp W and at the same time prepares a circuit that allows the clearing signal to go into operation again when the track relay GRI picks up. So instead of the white lamp, a warning or warning signal »red« is on. This state remains until the last train axle denies Crossed. C and the train is alone on the isolated section B. Now Sa's track relay Gi? I pulls

German Museum Library

on again, and the warning signal is switched to "white" or free signal by the contact ι of this relay. The auxiliary relay HE I remains picked up. As a result, a power supply to the auxiliary relay HE II is impossible, since its supply is interrupted by the contact 2 of the auxiliary relay HE II . After leaving the isolated section B, the track relay Gi? // on again, 'ο and the auxiliary relay HE I is interrupted. The circuit is then free for a new sequence of moves.

Since the circuit is symmetrical, the process is exactly the same if a train ¹ S enters from side B instead of from the side, as just described. If gas lighting is used instead of electrical lighting, the electrical circuit shown for "red" is omitted. There occurs a relay coil, the in'stromdurchfiossenem state controls the gas supply to a white lamp, while current interrupting a red warning lamp is turned on ^a 5 instead of the light denoted by W.

The drawing shows both the equipment for systems with electrical lighting as well as those with gas lighting.

The way in which the circuit can be carried out if, instead of three insulated rails lying one behind the other, only two insulated rails are used, which are opposite one another and are offset from one another in the crossing, is shown in Fig. 2. With A and B they are at - 'denoted the insulated rails. All other letters and numbers apply in the same way. In both figures, the same letters and numbers designate the same or corresponding parts of the device GB III. B means the battery, WI and WII are the damping resistances, with W and i? white light and red light are indicated, and GM represents the gas solenoid valve which controls the gas supply.

Claims (4)

Patent claims: i. Signaling device for crossings on single and multi-track railways that run in one or both directions, with insulated rails where when driving on the route a conductive connection from directly on the crossing lying rails with rails lying in front of the crossing is manufactured according to patent 597 930, characterized in that that the current of the signal lamps etc. both via contacts of the track relays to be operated at the entrance of the block as well as via contacts of the track auxiliary relay. 2. Override circuit according to claim 1, characterized in that a) the pole of a battery and the like to be connected alternately to the red or white lamp aft the root of a changeover contact of the first track relay (GRI) and b) the branch of the contact, which is closed in the idle state, is fed to the root of a further changeover contact (1) of the other track relay (GRII) , the closed branch of which is connected to the white lamp, c) the open branch of the contact mentioned under a is connected to the root of a changeover contact (1) of an auxiliary relay (HE II) triggered by the second track relay (GRII) , the closed branch of which leads to the red lamp, the open branch of which leads to the contact root mentioned under b , and that d) the root named under b with its initially open branch is at the root of a changeover contact (1) controlled by the other auxiliary relay (HEI) , the open branch of which is connected to the white lamp, the closed branch of which is connected to the red lamp. 3. Override circuit according to claim 1 and 2, characterized in that the track relays (z. B. GR I) each bridged by two series-connected working contacts ( GRII, 3, HEU, 3) each of the other track relay and the auxiliary relay belonging to this and be thrown off. 4. Override circuit according to claim 1 to 3, characterized in that the auxiliary relays fed with one end jointly from one pole of the power source are connected with their other ends to the branches of two changeover contacts (HEI, 2; HEU, 2) controlled by them which are switched in such a way that the closed branches each lead to the non-associated relay (blocking circuit) and their roots lead to the other pole of the power source via a normally open contact controlled by the non-associated track relay. 1 sheet of drawings