Motor and chassis assembly for toy racing car

Claim 1

A MOTOR AND CHASSIS ASSEMBLY FOR A TOY SLOT RACER COMPRISING AN ELECTRIC MOTOR HAVING A PAIR OF AXIALLY SPACED, DISC-SHAPED MAGNETS ORIENTED WITH LIKE MAGNETIC POLES OPPOSED TO EACH OTHER, TWO FERROUS POLE PIECES EACH CONTACTING SAID MAGNETS AT THE EDGES THEREOF AND JOINING TWO OF SAID LIKE POLES SO AS TO FORM A MAGNETIC FIELD BETWEEN SAID POLE PIECES, AN ARMATURE HAVING AN ARMATURE SHAFT JOURNALED IN BEARINGS IN THE MAGNETS, ONE END OF THE ARMATURE SHAFT EXTENDING THROUGH ONE MAGNET WITH A PINION GEAR ATTACHED THERETO, MEANS LOCATED AT THE END OF EACH POLE PIECE OVERLAPPING THE END FACES OF THE MAGNETS TO PREVENT SHIFTING OF THE MAGNETS RELATIVE TO THE POLE PIECES; A GENERALLY TUBULAR CHASSIS UNIT EXTENDING AXIALLY FROM EACH END OF SAID MOTOR AND TELESCOPED OVER THE ADJACENT ENDS OF SAID POLE PIECES, ONE OF SAID CHASSIS UNITS CARRYING AN AXLE WITH A GEAR SECURED THERETO AND MESHED WITH SAID PINION GEAR SO THAT THE MOTOR DRIVES THE AXLE; ELECTRICAL CONTACT MEANS CARRIED BY THE OTHER OF SAID CHASSIS UNITS FOR MAKING ELECTRICAL CONTACT BETWEEN THE MOTOR AND AN ELECTRICALLY CONDUCTIVE TRACK; THE MAGNETS HAVING SLOTS AT EACH POLE ON THE INNER FACES THEREOF, SAID POLE PIECES HAVING OPENINGS OPPOSITE SAID SLOTS, SAID CHASSIS UNITS HAVING HOLES OPPOSED TO SAID OPENINGS, AND HOLDING ELEMENTS INSERTED THROUGH SAID HOLES AND OPENINGS AND INTO SAID SLOTS SO AS TO SECURE SAID CHASSIS UNITS TO SAID MOTOR AND TO ORIENT SAID MAGNETS RELATIVE TO SAID POLE PIECES.