Synchronous motor with self-set limit control

Claim 1

A SYNCHRONOUS ELECTRIC MOTOR HAVING A FRAME, A RATCHET WHEEL PIVOTALLY SUPPORTED B Y THE FRAME, A PAWL ENGAGING SAID RATHET WHEEL, A PRIME MOVER OF THE TYPE WHICH VIBRATES SYNCHRONOUSLY WITH THE FREQUENCY OF AN APPLIED ENERGIZING ALTERNATING CURRENT DRIVINGLY COUPLED TO SAID PAWL TO DRIVE SAID RATCHET WHEEL, SAID MECHANISM FOR CONTROLLING THE AMPLITUDE OF MOUNTED ON SAID FRAME AND ING A STOP MEMBER MOVABLY MOUNTED ON SAID FRAME AND HAVING A PAIR OF OPPOSITELY FACING STOP FACES, MEANS MOVABLE WITH SAID PAWL HAVING A PAIR OF OPPOSITELY FACING CONTACT SURFACES EACH POSITIONED TO MOVE TOWARD AND AWAY FROM A SEPARATE ONE OF SAID STOP FACES AS SAID PRIME MOVER VIBRATES, THE CLEARANCES BETWEEN SAID STOP FACES AND CONTACT SURFACES BEING SUFFICIENT TO ALLOW MOVEMENT OF SAID PAWL GREATER THAN THE PITCH OF A SINGLE TOOTH AND LEAS THAN TWO TEETH ON SAID RATCHET WHEEL WITHOUT INTERFERENCE BY SAID STOP MEMBER, THE MASS OF SAID STOP MEMBER BEING SUFFICIENT TO ARREST MOTION OF SAID PAWL ON CONTACT BETWEEN A STOP FACE AND A CONSTANT SURFACES WITH INSIGNIFICANT MOTION ON SAID STOP MEMBER.