DE438635C - Method and device for driving route blocking switchgear - Google Patents

Description

GERMAN EMPIRE

ISSUED DECEMBER 23, 1926

REICH PATENT OFFICE

PATENT LETTERING

CLASS 2Oi GROUP 28

(L 62ggg IIj20 i)

C. Lorenz Akt-Ges. in Berlin-Tempelhof ).

Method and device for driving route blocking switchgear. Patented in the German Empire on April 21, 1925.

The invention relates to a method and both direct current and alternating current

Devices to drive switch gear, use, however, one gives the latter loading -

ken for the route blocking. 'instinctively preferred, because up to now

It is known that for the drive of j known direct current devices with permanent

Switching mechanisms for the blockage of the route and the disconnection of the power through the tripping

*) The patent seeker stated as the inventor:

Rudolf Mayer in Berlin-Charlottenburg.

4B8635

a single surge of electricity can be brought. However, the AC block also has a source of error in that it can trip as soon as the block line receives an alternating current leading line contacts; it would also trigger on contact with a high-speed telegraph line.

To avoid this cause of failure, according to the invention again on the ίο direct current or one in one direction effective current as the driving force decreased, but the mentioned disadvantages of the earlier direct and alternating current block are weeded out. The essential feature of the invention is that to trigger this block an intermittent current with a certain number of current pulses in the same direction, separated from one another by current interruptions, which are within a fixed Time to pass is used. The effect of these current impulses is such, that after reaching the peculiar working position and after a subsequent one Interruption occurs when deblocking occurs.

To carry out the process, the normal direct current block receives additional devices, namely a relay that works with such a drop-out delay that it survives the current impulse Switching mechanism, consisting of a switching magnet and a retarding holding magnet, its delay duration corresponds to that of the former delay relay. The rotary arm of the rear derailleur is set up so that when the holding magnet is de-energized, it is in returns to its basic position. The swivel arm closes at a certain number of Switching steps, e.g. B. nine, one contact.

Another addition to the block field is the pulse generator. When the push rod is pressed down, it is pulled up (by means of a transmission) and remains in the pulled-up state until the push rod is released. The pulse generator: expires and gives a certain number of | Current pulses in the line within a \ certain time, the uppermost limit of loading by i regards to operational safety; thing is to z. B. to avoid the consequences of arbitrary interference.

Another addition to the! Block is a drop flap that lifts when the button is pressed down and j self- ^; Closure is placed. This flap is made to fall by an electromagnet as soon as the corresponding second block! is triggered at the end of the line. The flap can also be lifted by hand or by means of a special push button!

den and are used as an observation signal. The block is according to the invention appropriately set up so that it has a different number of current pulses for each direction of travel required for triggering, e.g. B. nine! for one and seven impulses for the other Direction.

The operation of a blocking pre-; ganges in a device according to the invention is shown on the basis of the drawing (Fig. 1, 2, 3, which are to be placed together from left to right). In station B there is a four-field block B, namely from the left the end field of station A with the key lock TSp above, and the second field after the! Station C, as the third the starting field after, the station A and as the fourth the end field from the station C. This arrangement of the block, unfortunately corresponds to a double-track operation of the known type. The starting field after station B in station A is unblocked. After the train, the exit signal of the station ^{^:} B corresponding lock pressed in station ^: left, which is the top field after. ; Wherein the trapdoor Fl with the push rod nose is pushed α and remains in this position, the push rod Dr is depressed. With the push rod Dr , the rack b is connected, which engages in the gear c and pulls the contact mechanism d. Simultaneously with the push rod, the locking rod Vs is also pressed and remains in the pressed state until it is triggered by the block magnet BlM. When the push rod Dr is pressed down, the changeover contact e of the contact mechanism d rests against the upper contact, to which a direct current battery is connected. Thus, a current flows from the battery via the e · Contact the end panel of A in station B, there via the changeover contact e to the solenoid SM, at the same time to ■ delay relay VR. This moves its armature, at the center contact of which the battery is located, and brings a holding relay HM to pull-in. The armature of the switching magnet SM transports the gear Z by one tooth. SM as well as VR and HM remain attracted. As soon as the released push rod of the initial field after B in A goes back to its end position, the ram d , runs down and places its changeover contact e, z. B. eight times, alternately to the upper and lower counter contact. As a result, electricity is sent eight times in a row into the end field of AmB. The switching magnet SM works on every single current surge, whereas the relays HM and VR remain attracted due to their delay. With the first current surge, the drop flap Fl has a current

received impulse and fell, which is irrelevant at first. After all, that is to say a total of nine, current steps which the switching magnet SM performed, the contact arm f is on the contact labeled “nine”. Because now in B arrive no currents will initially fall in the B delay relay VR, while HM is still tightened. The anchor of

ίο VR goes to rest position and brings a current from the battery via the still closed contact, from HM to block magnet BlM, at the same time to the second winding from VR to contact "nine" via rotary arm f, which was now resting on contact "nine" , to Earth. The block magnet BlM then releases the locking rod Vs , which springs back into its rest position and actuates the contacts coupled to it. This creates the following current flow: From the battery via the normally closed contact of VR, via the still tightened contact HM to switch g, via contact h backwards into the line to station A, there itself via switchover contact e to drop flap Fl of the end field to B. in A, which was previously in the pushed-up state. The flap falls and serves as a sign that the end field from A to B has been triggered.

The flap in A remains until the next press in A. The end field of A in B is unblocked, but cannot be blocked because the not yet released lock key TSp still holds it.

The train is now approaching station B, passes the freely drawn entry signal and a rail contact behind the entry signal. The rail contact releases the key lock TSp in a known manner, whereby the end field from A to B can be operated. This end field is now pressed, the flap F1 being pushed up again and a current surge being sent to the starting field in B.

The locking rod VS is locked, as is the released push rod Dr, at the same time the key lock TSp is locked. Xach releasing the push rod end panel Dr of the A sends B in eight additional current pulses to A and triggers the local held under \ ^r Closure block, as already described, from. The trap flap F1 in the end field of A in station B falls down and serves as a sign that the starting field in A has been triggered, so that a new move can follow. After the end of the current impulse, the relay VR first drops out with a delay, then the holding magnet HM, as a result of which the rotary arm f springs into its initial position by means of the spring F.

If a train journey is to follow in the opposite sense, i.e. from B to A, the starting field to A is blocked in B , as already described, but not with eight current pulses but with six. After letting go of the push rod Dr of the starting field to A in B , an electric shock occurred when the push rod was depressed, now when releasing the push rod the mentioned six electric shocks occur, so there are a total of seven electric shocks, which triggers the end field of B in station A , but which is locked the key lock TSp is in place and only triggers after the rail contact in A has been crossed.

As described above, nine current pulses are required for blocking for the direction of travel from A to B and C, whereas seven current pulses are required for the direction of travel from C to B and A. The purpose of using a different number of impulses for each direction of travel is to ensure directional traffic. This is achieved as follows: If, for example , there is a block in the direction of travel from A to B and the block line is in contact with the other line for the direction of travel from B to A , the block of the starting field would go to A in B, i.e. the block for the second direction of travel, to trigger.

Take e.g. B. suppose that the starting field after A is blocked in B, the end field of A is unblocked. If you were to press and release in the end field of A now, the corresponding start field in A would be unblocked, which is also correct. But if the two block lines z. B. are in contact with each other in point X, the nine current pulses would be transferred to the second line and would trigger the blocked initial field to A in B. However, this is prevented if fewer than nine current pulses are used for the second direction of travel. The rotating arm f of the starting field to A only triggers the block BlM when the rotating arm f is on "seven", has attracted HM and VR has already let go. In the event of direct contact with the lines, the rotary arm / would slide over contact seven, and triggering would not occur because VR is still _s . The rotary arm would get to contact "nine", VR would now drop, a little later also HM, and the rotary arm / would return to its starting position. When the contact seven is passed over, there is no tripping because the HM has already fallen off.

Of course, the number of contacts can be selected as desired. The contact numbers are to be chosen in such a way that they can be used in normal telegraph or other

408635

strive coming. Traffic should not occur and act as a nuisance.

Would z. If, for example, a Morse code line in operation comes into contact with the block line by any chance, the relay VE and the switching magnet SM will probably be activated, VR would make HM respond, causing the rotary arm f to operate

ίο set, go one step further with each Morse code and pass over the contacts seven or nine. The rotary arm would move up to its stop k and would remain there until a longer period of rest between two Morse code, whereby the relays VR and HM would drop out, whereby on the other hand the rotary arm f would snap back into its initial position. If he continued to telegraph, the game would repeat itself. Touching the Morse code line and the block line would not trigger the block prematurely.

It cannot be triggered by any alternating current, as VR and HM must not respond to such. A contact between the block and the fast telegraph line does not lead to tripping either, since the delay relay VR does not respond to a rapidly changing current or its armature immediately drops back again.

Claims (5)

Patent claims: 1. A method for driving route blocking switching mechanisms vei by means of only effective current in one direction, characterized in that to trigger the block, an intermittent current with a certain number of current pulses separated from each other by current interruptions (z. B. nine) in the same direction the Walk within a set time \ ^r is used. 2. Method for driving route blocking switchgear by means of only current effective in one direction according to claim 1, characterized in that that after reaching the peculiar Working position and unblocking after a subsequent power interruption entry. 3. Arrangement for exercising the method for driving route blocking switchgear according to claim 1 and 2, characterized in that a normal direct current block with the following additional devices are equipped: one when the push rod is depressed to the elevator, when it is released current impulse generator brought to expiration and the sending of a certain number of electric surges, a relay that works with a dropout delay that lasts beyond the current impulse and finally with a switching mechanism that consists of a switching magnet, a holding magnet with an equal Drop-out delay like that of the relay, consisting of switching arms and several switching positions for the latter. 4. Arrangement according to claim 1 to 3, characterized in that the impulse generator for each of two directions of travel a different number of current pulses that cause the block to be triggered, sent, for the purpose of mutual contact of the block lines for one and the other direction an unintentional unblocking of a blocked one To prevent the field. 5. Arrangement according to claim 1 to 3, characterized in that the switching mechanism (Z) of the receiving station is first advanced by a step by a current surge when pressing the pressure lever of the sending station and after releasing the pressure lever and going back the push rod that number of steps power, which is due to the specific number of cams (e.g. 8 or 6) of the impulse transmitter, so that the switching arms of the switching mechanism (Z) only in the final (i ^th to n ^th ) switch position on the effective switch contacts (z, long the 9 * ™ or 7 ^th) overall example. 1 sheet of drawings.