Manually controlled transmission gear shift assembly

Claim 1

IN A GEAR SHIFT MECHANISM FOR A MULTIPLE SPEED RATIO MANUALLY CONTROLLED TRANSMISSION A TRANSMISSION CONTROL LEVER HAVING FULCRUM PORTIONS INTERMEDIATE ITS ENDS, A BRACKET HAVING A PAIR OF PARALLEL WALL PORTIONS, A SELECTOR SHAFT SLIDABLY SITUATED WITHIN ALIGNED OPENINGS FORMED IN SAID BRACKET PORTIONS, SHIFT LEVERS PIVOTED ON SAID SELECTOR SHAFT, ONE END OF EACH OF SAID SHIFT LEVERS BEING ADAPTED TO BE CONNECTED TO SHIFT CONTROLLING PORTIONS OF SAID TRANSMISSION, MEANS FOR CONNECTING SAID SELECTOR SHAFT TO EACH OF SAID LEVERS AS SAID CONTROL LEVER IS SHIFTED IN THE DIRECTION OF ITS AXIS AND A SPRING LOADED DETENT MEANS HAVING DETENT PORTIONS CARRIED BY SAID SELECTOR SHAFT ADJACENT ONE OPENING OF SAID WALL PORTIONS FOR CREATING A DETENT FEEL AS SAID SELECTOR SHAFT IS SHIFTED IN THE DIRECTION OF ITS AXIS TO ONE EXTREME POSITION, AND A PIN CONNECTION BETWEEN ONE END OF SAID CONTROL LEVER AND SAID SELECTOR SHAFT WHEREBY THE LATTER MAY BE ROTATED ABOUT ITS AXIS AND SHIFTED IN THE DIRECTION OF ITS AXIS BY APPROPRIATELY MANIPULATING SAID CONTROL LEVER, SAID DETENT MEANS COMPRISING A TRANSVERSE OPENING FORMED IN SAID SELECTOR SHAFT, A COMPRESSION SPRING IN SAID TRANSVERSE OPENING, A BALL LOCATED AT EACH OF THE TWO ENDS OF SAID TRANSVERSE OPENING, SAID COMPRESSION SPRING ENGAGING SAID BALLS AND URGING THEM RADIALLY OUTWARDLY, SAID BALLS BEING URGED RADIALLY INWARDLY AGAINST OPPOSING FORCE OF SAID COMPRESSION SPRING AS THEY ARE MOVED THROUGH THE OPENING IN ONE OF SAID WALL PORTIONS WHEN SAID SELECTOR SHAFT IS SHIFTED TO A POSITION THAT WILL ESTABLISH THE REVERSE SPEED RATIO.