Two-speed power transmission

Claim 1

A TWO-SPEED POWER TRANSMISSION COMPRISING IN COMBINATION A TUBULAR OUTPUT SHAFT MOUNTED FOR ROTATIONAL MOVEMENT AND HAVING A PAIR OF SLOTS THROUGH THE WALLS AT EACH END PORTION THEREOF, A SUN PINION MOUNTED FOR ROTATIONAL MOVEMENT ON THE OUTPUT SHAFT, MEANS INCLUDING AN INPUT GEAR FIXED TO THE SUN PINION CONNECTING ONE END OF THE SUN PINION TO AN INPUT DRIVE, A PLATE MOUNTED FOR ROTATIONAL MOVEMENT ON THE OUTPUT SHAFT AND HAVING A HUB ROTATABLY RECEIVING THE OUTPUT SHAFT, A FIXED INTERNAL RING GEAR POSITIONED AROUND THE SUN PINION, A PLURALITY OF PLANET GEARS EACH IN MESHING ENGAGEMENT WITH THE SUN PINION AND THE INTERNAL RING GEAR AND BEING CONNECTED TO THE PLATE FOR DRIVING THE PLATE, A SHIFT ROD MOUNTED FOR ROTATIONAL AND LONGITUDINAL MOVEMENT IN THE OUTPUT SHAFT, SAID SHIFT ROD HAVING CONNECTED THERETO AT EACH END THEREOF A PAIR OF CLUTCH MEMBERS PROJECTING THROUGH THE SLOTS IN THE OUTPUT SHAFT AND BEING ENGAGEABLE WITH THE SLOT WALLS, SAID PLATE HUB AND SUN PINION EACH HAVING ON ONE OF THEIR ENDS A PAIR OF PROJECTIONS RESPECTIVELY ENGAGEABLE WITH SAID PAIR OF CLUTCH MEMBERS FOR ESTABLISHING A DRIVE CONNECTION, SAID SHIFT ROD HAVING A FIRST POSITION WHEREIN THE PROJECTIONS OF THE PLATE HUB ARE ENGAGED WITH ONE PAIR OF CLUTCH MEMBERS WHILE THE PROJECTIONS OF THE SUN PINION ARE DISENGAGED FROM THE OTHER PAIR OF CLUTCH MEMBERS, A SECOND POSITION WHEREIN THE PROJECTIONS OF THE SUN PINION ARE ENGAGED WITH THE OTHER PAIR OF CLUTCH MEMBERS WHILE THE PROJECTIONS OF THE PLATE HUB ARE DISENGAGED FROM SAID ONE PAIR OF CLUTCH MEMBERS, AND A THIRD POSITION WHEREIN THE PROJECTIONS OF THE SUN PINION AND PLATE HUB ARE BOTH DISENGAGED FROM THE CLUTCH MEMBERS, AND ACTUATION MEANS FOR EFFECTING LONGITUDINAL MOVEMENT OF THE SHIFT ROD INTO SAID POSITIONS THEREOF.