Model train switching mechanism

Claim 1

IN AN ELECTRICALLY OPERATED MODEL RAILROAD SYSTEM ON WHICH THREE OR MORE TRAINS MAY BE RUN SIMULTANEOUSLY IN THE SAME DIRECTION, THE COMBINATION COMPRISING AT LEAST TWO LOOPS OF MODEL RAILROAD TRACK; LEADING AND TRAILING SWITCHES INTERCONNECTING THE LOOPS TO FORM MAIN LINE TRACK SECTIONS EACH COMMON TO A PAIR OF LOOPS; SAID LEADING SWITCHES HAVING MEANS OPERABLE BY ONCOMING TRAINS TO DIRECT ONCOMING TRAINS ONTO THE MAIN LINE TRACK SECTIONS; SAID TRAILING SWITCHES HAVING MEANS OPERABLE BY A DEPARTING TRAIN TO DIRECT THE NEXT SUCCEEDING DEPARING TRAIN FROM A MAIN LINE TRACK SECTION TO AN ALTERNATE LOOP SECTION; AN INSULATED POWER RAIL SECTION IN EACH LOOP SECTION INTERMEDIATE A LEADING AND TRAILING SWITCH; POWER LINES LEADING FROM SAID TRAILING SWITCHES TO SAID INSULATED RAIL SECTIONS; SWITCHING MEANS IN SAID TRAILING SWITCHES ADAPTED TO DE-ENERGIZE THE INSULATED POWER RAIL SECTION IN THE LOOP SECTION AHEAD OF A TRAIN WHICH PASSES OVER THE SWITCH AND TO ENERGIZE AN INSULATED POWER RAIL SECTION IN THE ALTERNATE LOOP SECTION.