High speed stepping apparatus

Claim 1

HIGH SPEED STEPPING APPARATUS COMPRISING IN COMBINATION, A PAIR OF PARALLEL SPACED APART MAGNETIC WALL FORMING MEMBERS, ONE OF SAID MEMBERS HAVING AN APERTURE THERETHROUG, A ROTATABLE SHAFT JOURNALLED BETWEEN SAID WALL MEMBERS, MEANS COUPLING SAID SHAFT TO A SOURCE OF CONSTANT TORQUE, A TOOTHED ESCAPEMENT WHEEL DISPOSED ON AND ROTATABLE WITH SAID SHAFT, A CYLINDRICAL MAGNETIC MEMBER DISPOSED BETWEEN SAID WALL MEMBERS AND INCLUDING AN AXIALLY ALIGNED MAGNETIC CORE, ONE END OF SAID CORE EXTENDING INTO SAID APERTURE AND FORMING AN AIR GAP BETWEEN SAID CORE AND THE RIM OF SAID APERTURE, AN ELECTROMAGNETIC MEMBER SURROUNDING THE SAID ONE END OF SAID CORE AND MOVABLE BACK AND FORTH WITHIN SAID AIR GAP, A LATCH FOR SAID ESCAPEMENT WHEEL, MEANS OPERATIVELY INTERCONNECTING SAID LATCH TO SAID ELECTROMAGNETIC MEMBER, AND MEANS CONNECTING SAID ELECTROMAGNETIC MEANS TO A SOURCE OF ELECTRICAL ENERGY WHEREBY UPON ENERGIZATION AND DE-ENERGIZATION OF SAID ELECTROMAGNETIC MEANS SAID LATCH IS ENGAGED AND DISENGAGED WITH SAID ESCAPEMENT WHEEL THUS PERMITTING SAID WHEEL TO BE ROTATED STEP-BY-STEP IN RESPONSE TO THE APPLIED TORQUE.