DE99172C - - Google Patents

Description

IMPERIAL

PATENT OFFICE.

A - <r

PATENT LETTERING

CLASS 20, pf, ELSENBAHNBETRIEB.

Fatentirt in the German Empire on December 9, 1897.

The known circuit systems for electric railways with underground power supply and divisional operations are as a rule constituted in such a way that for every divisional director a special electromagnetic device belongs, which in a closed, underneath the housing located on the route is attached. These devices are almost based without exception on the principle that an armature playing between two electromagnets when the motor vehicle is moving, now from one electromagnet, now from the other is attracted and thereby the person in Ver-r with the respective sub-leader Binding contact soon falls asleep and soon interrupts again.

It has been shown, however, that this device is not yet the has the required operational safety. If namely the anchor as a result of the excitation of one Magnet is attracted by the latter and has thereby closed the contact, so comes it is not uncommon for the other magnet to fail in the subsequent excitation Is able to withdraw the armature from the contact, because the first magnet as a result of some a coincidence is still 'excited and for this reason holds back the anchor. Of the the latter therefore not infrequently remains open even when the motor vehicle continues to move the contact and the partial conductor in question remains under current, which has already been done frequently has given rise to accidents.

The present invention aims to avoid this inconvenience by the fact that a circuit is used in which the excitation of the second magnet necessarily results in a current interruption of the first magnet. this will achieved in a simple manner that in the line leading to the second magnet at the same time the winding of a third smaller magnet is switched on, which has an in the circuit breaker lying on the branch line of the first electromagnet. When the second and third are excited at the same time, the electromagnet becomes the first leading branch current interrupted, so that the armature is now through the second magnet without resistance from the to The leader of the leading contact can be withdrawn.

In the accompanying drawing this new circuit system is in one complete, multiple The partial conductor comprehensive circuit diagram and shows the following condition.

The conductor rail S attached to the underside of the motor vehicle, the length of which is so dimensioned that it extends almost over three sub-conductors, immediately loops over the sub-conductor k _s . The one in that. associated relay housing anchor e ₃ located is attached a swinging rocker arm about the axis C _3/3 at the upper end, the lower final _3, as can be seen from the drawing, leaning against the contact piece ^. ₃ The axis C ₃ is connected to the feed line h by the line g ₃ and the contact piece q * is connected to the partial conductor A ₃ by the line a ₃ , so that the busbar 5 of the motor vehicle is on the way hg _s c ₃ r ₃ ^ ₃ a _& k ₃ receives current, which then passes through the motor into the rail I

Claims (1)

is directed. Here, a branch current flows through the line t ₃ branched off from the line a _s , the winding of the magnet n ₃ and the line b _& through into the rails /. Thus, the solenoid is energized and n _s e attracts the armature ₃ to the right, the other end r ₃ DAF of the double lever J ₃ forcefully against the contact piece q ₃ geprefst is. The contact at q ₃ is thus maintained at the same time by the attractive effect of the magnet n ₃ and by the overweight of the armature e ₃ . If the busbar S leaves the sub-conductor Ar _{2 as the motor vehicle moves on and touches the sub-conductor Ar 4} at the next point in time, a partial current flows through k _t a _i t _i into the winding of the magnet M ₄ and through the line ^ ₄ in the rails /. As a result, the armature e _{4 is} pulled to the right by the electromagnet n ₄ and closes the contact q _i: so that the busbar now also receives current on the way hg _A c _i r ₄ q _i a ₄ A ₄ . But at the same time the portion of conductor A., is switched off from the feed line, fliefst a branch stream from the line a ₄ in the leading to the second preceding relay box line _ρ η and then through the connected one behind the other windings of the magnets m.> And o., And into the line &., and in the rails /. As a result of the excitation of the smaller magnet o, which occurs in this process, the circuit breaker n ₀ in the line f., Is attracted and, as a result, the line t _{0 is} interrupted. The excitation of the magnet W ₂ , which has just started from the busbar S on the path k ₂ a. ₂ 1. ₂ n ₂ b. _{2 received} electricity is therefore canceled under all circumstances, so that the anchor e. _{2 is} pulled from the position shown in dotted lines by the magnet ₂ without resistance into the position shown in full. The lower end r. _{2 of} the rocker arm f.-, here leans against the piece s ₂ , the contact q. _2, on the other hand, is now canceled and the sub-conductor A _{0 is} therefore disconnected from the feed line. As long as the busbar is still dragging on the partial conductor A ₄ , the magnets m, and O ₂ remain excited and therefore the circuit breaker U _{2 is} open. However, as soon as the busbar S has left the partial conductor / j ₄ , the excitation of the magnets mentioned is canceled and the circuit breaker U ₂ therefore sinks back to its contact due to its own weight, so that the magnet n ₂ again through the busbar of a later motor vehicle can be excited. The sequentially connected magnets m and ο of each relay box must, when the route is traveled in the direction of the arrow, each time through a (fully extended) transition linej? be conductively connected to the second following partial conductor k. If, however, the route can also be traveled in the opposite direction, the magnets mentioned must be connected to every second preceding partial conductor by special transition lines p '(indicated by dotted lines). In the circuit system described, it is as good as impossible that one of the Conductor rail no longer touched partial conductor is still energized. To complete For safety, however, you can still find a hanging auxiliary contact at the rear end of the car attach, which slides on the partial ladders, and a bell in the carriage sets in motion if one of the partial conductors should still be live. Pateν τ claim: Circuit system for electric railways with underground power supply and partial conductor operation, in which a movable armature is alternately influenced by two electromagnets, characterized in that in the branch line (t _x t ₀ ...) Of the first electromagnet (H ₁ H _{2 ...)} which when energized attracts (. e _x e. _2..) to the anchor on the Contact (q _L Q.- ,. ..), a circuit breaker (U ₁ U ₂ ...), in the branch line of the second Electromagnet (niy vx.-,...), However, which is supposed to pull the armature back from the contact when it is excited, a third smaller magnet (O ₁ O ₂ ...) Is switched on, which has the mentioned circuit breaker (U ₁ U ₂ ...) operated in such a way, that with the simultaneous excitation of the two series-connected magnets (m ₁ and O _1, m ₂ and O ₀ ·..) opens the circuit breaker, and thereby the excitation of the first magnet is canceled; so that the second magnet (In ₁ m ₀ ...) now the armature (e _x e ₂ ...) without Resistance from the contact (q _x q. ₂ . . .) and as a result can switch off the relevant partial conductor (U ₁ Av, ...) from the feed line (h). For this purpose ι sheet of drawings.