Rapid transit trucks

Claim 1

IN A RAILWAY VEHICLE TRUCK, A TRUCK FRAME EXTENDING LONGITUDINALLY THEREOF, AN ASSEMBLY INCLUDING A PAIR OF WHEELS SPACED APART TRANSVERSELY OF THE TRUCK, AXLE STRUCTURE EXTENDING TRANSVERSELY OF THE TRUCK AND MOUNTING SAID WHEELS AT ITS OPPOSITE ENDS, AND RIGID STRUCTURE COMPRISING A HOUSING EXTENDING TRANSVERSELY OF THE TRUCK AND SURROUNDING AND ROTATABLY MOUNTING SAID AXLE STRUCTURE, A GEAR BOX RIGID WITH SAID HOUSING INTERMEDIATE THE ENDS THEREOF, AND A MOTOR RIGIDLY CONNECTED TO SAID GEAR BOX IN SUBSTANTIAL ALIGNMENT THEREWITH LONGITUDIANLLY OF THE TRUCK TO FORM A TORQUE ARM OPPOSING ROTATION OF SAID AXLE HOUSING, RESILIENT MEANS SEATED ON THE END PORTIONS OF SAID AXLE HOUSING INBOARD OF SAID WHEELS AND SUPPORTING SAID TRUCK FRAME, A PAIR OF SEPARATE PARALLEL LINKS PIVOTALLY CONNECTED AT THEIR OPPOSITE ENDS RESPECTIVELY TO OPPOSITE ENDS OF SAID AXLE HOUSING AND TO SAID TRUCK FRAME AND EXTENDNG LONGITUDINALLY OF THE TRUCK THEREBETWEEN, A LINK EXTENDING TRANSVERSELY OF THE TRUCK AND PIVOTALLY CONNECTED AT ITS OPPOSITE ENDS TO SAID RIGID STRUCTURE AND TO SAID FRAME, A SUBSTANTIALLY VERTICAL LINK PIVOTALLY CONNECTED AT ITS OPPOSITE ENDS TO THE PORTION OF THE MOTOR MOST REMOTE FROM SAID AXLE STRUCTURE AND TO SAID FRAME, AND A PAIR OF HORIZONTALLY DISPOSED WHEELS PIVOTALLY MOUNTED ON SAID RIGID STRUCTURE FOR ROLLING ENGAGEMENT WITH VERTICAL GUIDING SURFACES OF THE TRACK.