High-low-reverse transmission

Claim 1

DRIVE MECHANISM, COMPRISING: AN INPUT SHAFT; A RELATIVELY ROTATABLE OUTPUT SHAFT COAXIAL WITH THE INPUT SHAFT; A FIRST CLUTCH CONCENTRIC WITH AND SLECTIVELY ENGAGEABLE AND DISENGAGEABLE BETWEEN SAID SHAFTS; AN INPUT GEAR COAXIALLY FIXED TO THE INPUT SHAFT AHEAD OF SAID FIRST CLUTCH; FIRST AND SECOND COAXIALLY SPACED AND SEPERATE INTERMEDIATE GEARS CONCENTRIC WITH AND JOURNALED RELATIVE TO THE SHAFTS AXIALLY BEHIND THE FIRST CLUTCH; A SECOND CLUTCH INCLUDING A DRIVEN MEMBER FIXED TO THE OUTPUT SHAFT AXIALLY INTERMEDIATE THE INTERMEDIATE GEARS AND A DRIVING MEMBER FIXED TO THE FIRST INTERMEDIATE GEAR; A THIRD CLUTCH INCLUDING SAID DRIVEN MEMBER AND A DRIVING MEMBER FIXED TO THE SECOND INTERMEDIATE GEAR; A FORWARD-SPEED COUNTERSHAFT JOURNALED IN PARALLEL RELATION TO THE INPUT AND OUTPUT SHAFTS AND HAVING A FRONT GEAR IN CONSTANT MESH WITH THE INPUT GEAR AND A REAR GEAR IN CONSTANT MESH WITH ONE OF THE INTERMEDIATE GEARS; A REVERSE-SPEED COUNTER-SHAFT JOURNALED IN PARALLEL RELATION TO THE OTHER SHAFTS AND HAVING A FRONT GEAR IN CONSTANT MESH WITH THE FORWARDSPEED COUNTERSHAFT FRONT GEAR AND A REAR GEAR IN CONSTANT MESH WITH THE OTHER INTERMEDIATE GEAR; AND CONTROL MEANS FOR INDIVIDUALLY EFFECTING ENGAGEMENT AND DISENGAGEMENT OF THE FIRST, SECOND OR THIRD CLUTCHES AND OPERATIVE TO ENGAGE ANY ONE CLUTCH WHILE THE OTHER TWO ARE DISENGAGED SO AS TO OBTAIN TWO FORWARD SPEEDS AND ONE REVERSE SPEED OF THE OUTPUT SHAFT FROM SAID INPUT SHAFT.