Strain gauge control for slave locomotive

Claim 1

A SYSTEM FOR GOVERNING THE OPERATION OF A HELPER LOCOMOTIVE CONNECTED IN A TRAIN OF CARS WITH A MAIN LOCOMOTIVE SUCH THAT A FIRST PORTION OF THE ENTIRE TRAIN IS COUPLED BETWEEN THE HELPER LOCOMOTIVE AND THE MAIN LOCOMOTIVE AND A SECOND PORTION IS COUPLED TO THE REAR OF THE HELPER LOCOMOTIVE, COMPRISING MEANS RESPONSIVE TO THE DETECTION OF A FORCE EXERTED UPN THE HELPER LOCOMOTIVE BY THE MAIN LOCOMOTIVE THROUGH COUPLINGS OF THE FIRST PORTION OF THE TRAIN TO PRODUCE A FIRST CHARACTERSITIC ELECTRICAL SIGNAL, MEANS RESPONSIVE TO THE VELOCITY OF THE TRAIN TO PRODUCE A SECOND CHARACTERISTIC SIGNAL, MEANS TO COMBINE SAID FIRST AND SECOND ELECTRICAL SIGNAL TO PRODUCE A THIRD ELECTRICAL SIGNAL CORRESPONDING TO AN EQUIVALENT HORSEPOWER AT THE POINT OF DETECTION OF THE FORCE, MEANS TO PRODUCE A FOURTH ELECTRICAL SIGNAL CORRESPONDING TO A RATIO OF THE RELATIVE WEIGHT OF THE FIRST AND SECOND PORTIONS AND A PREDETERMINED PORTION OF THE ENTIRE TRAIN FOR WHICH THE HELPER LOCOMOTIVE IS TO PROVIDE THE POWER, MEANS TO COMBINE THE THIRD AND FOURTH ELECTRICAL SIGNALS TO PRODUCE A FIFTH ELECTRICAL SIGNAL, MEANS TO PRODUCE AW SIXTH ELECTRICAL SIGNAL CORRESPONDING TO THE HORSEPOWER DEVELOPED BY THE HELPER LOCOMOTIVE, MEANS TO COMBINE THE FIFTH AND SIXTH ELECTRICAL SIGNALS TO OBTAIN A SEVENTH ELECTRICAL SIGNAL CORRESPONDING TO THE HORSEPOWER REQUIRED OF THE HELPER LOCOMOTIVE TO PROVIDE THE POWER FOR THE PREDETERMINED PORTION OF THE TRAIN LOAD, MEANS GOVERNED BY THE HORSEPOWER REQUIRED SIGNAL TO VARY THE FOURTH ELECTRICAL SIGNAL AND TO GOVERN THE OPERATION OF THE HELPER LOCOMOTIVE.