Spring clutch mechanism having lockout means

Claim 1

A CLUTCH CONSTRUCTION COMPRISING: A ROTATABLE DRIVE MEMBER, A ROTATABLE DRIVEN MEMBER MOUNTED CONCENTRICALLY WITH RESPECT TO SAID DRIVE MEMBER, SAID DRIVE AND DRIVEN MEMBERS BEING DISPOSED A FIXED DISTANCE APART FROM EACH OTHER, EACH OF SAID MEMBERS HAVING RADIALLY DISPOSED ENGAGING SURFACES, A SLEEVE MEMBER MOUNTED COAXIALLY WITH SAID MEMBERS AND MOVABLE AXIALLY WITH RESPECT TO SAID MEMBERS BETWEEN ENGAGED AND DISENGAGED POSITIONS, SAID SLEEVE HAVING FIRST AND SECOND SETS OF RADIALLY DISPOSED ENGAGING SURFACES, SAID FIRST SET OF RADIALLY DISPOSED ENGAGING SURFACES BEING SELECTIVELY ENGAGEABLE AND DISENGAGEABLE WITH THE ENGAGING SURFACE ON SAID DRIVE MEMBER AS THE SLEEVE MEMBER IS MOVED BETWEEN ITS ENGAGED AND DISENGAGED POSITIONS, RESPECTIVELY, SAID SECOND SET OF RADIALLY DISPOSED ENGAGING SURFACES BEING SELECTIVELY DRIVINGLY ENGAGEABLE AND DISENGAGEABLE WITH THE ENGAGING SURFACE ON SAID DRIVEN MEMBER AS THE SLEEVE MEMBER IS MOVED BETWEEN ITS ENGAGED AND DISENGAGED POSITIONS, RESPECTIVELY, SPRING MEANS NORMALLY BIASING SAID SLEEVE MEMBER TO ITS ENGAGED POSITION, AND MEANS ON ONE OF SAID MEMBERS TO HOLD SAID SLEEVE MEMBER IN THE DISENGAGED POSITION.