Electromagnetic impelling system for mechanical oscillators

Claim 1

IMPELLING SYSTEM FOR A MECHANICAL OSCILLATOR INCLUDING PERMANENT MAGNET MEANS OSCILLATING THEREWITH, COMPRISING: MEANS FOR PRODUCING A VOLTAGE PULSE OF GIVEN POLARITY WHEN THE OSCILLATOR APPROACHES A PRESELECTED ZERO POSITION; A TRANSISTOR HAVING ITS BASE-EMITTER PATH CONNECTED TO SAID VOLTAGE PRODUCING MEANS AT SUCH A POLARITY THAT THE TRANSISTOR IS BIASED FOR CONDUCTION AT SAID PULSE OF GIVEN POLARITY WHILE BEING CUT OFF IN THE ABSENCE OF SAID PULSE; A TRANSFORMER WITH PRIMARY AND SECONDARY WINDING, HAVING ITS PRIMARY WINDING CONNECTED TO THE EMITTER-COLLECTOR PATH OF SAID TRANSISTOR; A D.C. VOLTAGE SOURCE CONNECTED IN SERIES WITH SAID PRIMARY WINDING; AND A DRIVER COIL CONNECTED ACROSS SAID SE CONDARY WINDING OF SAID TRANSFORMER, SAID DRIVER COIL BEING POSITIONED RELATIVE TO SAID OSCILLATING PERMANENT MAGNET SO THAT FIELD AND CURRENT REVERSAL IN SAID DRIVER COIL OCCURS UPON CUT-OFF OF SAID TRANSISTOR AND WHEN SAID PERMANENT MAGNET PASSES SAID ZERO POSITION.