Impact clutches

Claim 1

IN AN IMPACT CLUTCH HAVING ROTATING DRIVING MEANS AND A ROTATABLE ANVIL MEMBER, THE COMBINATION FOR TORQUE TRANSMISSION THEREBETWEEN WHICH COMPRISES A ROTATABLE HAMMER MASS MOUNTED IN SAID CLUTCH COAXIALLY WITH SAID ANVIL MEMBER, MEANS FORMING A DRIVING ENGAGEMENT BETWEEN SAID DRIVING MEANS AND SAID HAMMER MASS FOR ROTATION THEREOF, A GENERALLY CYLINDRICAL IMPACT DOG, MEANS FOR MOUNTING SAID DOG IN SAID HAMMER MASS FOR ROTATION THEREWITH AND ANGULAR MOVEMENT WITH RESPECT THERETO ABOUT THE AXIS OF SAID DOG IN BOTH CLUTCHING AND DECLUTCHING DIRECTIONS, THE AXIS OF SAID DOG BEING RADIALLY OFFSET FROM BUT PARALLEL WITH THE AXIS OF ROTATION OF SAID ANVIL MEMBER AND SAID HAMMER MASS, THE RADIALLY INWARDLY DISPOSED SIDE OF SAID DOG FACING SAID ANVIL MEMBER BEING RECESSED TO FORM AXIALLY AND ANGULARLY OFFSET OPPOSITELY DIRECTED IMPACT EDGE PORTIONS A DIFFERENT ONE OF WHICH TRANSMITS IMPACT TO SAID ANVIL MEMBER IN EACH DIRECTION OF ROTATION OF SAID HAMMER MASS, CAM MEANS ON SAID ANVIL MEMBER FOR ENGAGING IN EACH DIRECTION OF ROTATION ONE OF SAID IMPACT EDGE PORTIONS OTHER THAN THE ONE WHICH TRANSMITS IMPACT IN THAT DIRECTION OF ROTATION EFFECTING ANGULAR MOVEMENT OF SAID DOG IN SAID CLUTCHING DIRECTION, MEANS FOR MOVING SAID DOG IN SAID DECLUTCHING DIRECTION, AND A BEARING SURFACE ON SAID HAMMER MASS FOR ENGAGING THE RADIALLY OUTWARDLY DISPOSED SIDE OF SAID DOG SUBSTANTIALLY THROUGHOUT THE ENTIRE LENGTH THEREOF.