Synchronization indicator

Claim 1

APPARATUS FOR INDICATING SYNCHRONIZATION OF A PAIR OF ENGINES WHICH ENGINES HAVE SEPARATE INGNITION CIRCUITS INCLUDING A SOURCE OF ELECTRIC ENERGY, AN IGNITION SWITCH, AN IGNITION COIL PRIMARY WINDING AND AN IGNITION CONDENSER IN SERIES, COMPRISING A PAIR OF GENERALLY CUP-SHAPED MEMBERS HAVING ADJACENT OPEN ENDS, ONE OF WHICH HAS AN OPENING THERETHROUGH, A SEAL AND AN ELECTRICAL CHASSIS POSITIONED BETWEEN THE OPEN ENDS OF THE CUP-SHAPED MEMBERS, STUD AND NUT MEANS EXTENDING AXIALLY THROUGH SAID CUP-SHAPED MEMBERS FOR SECURING SAID CUP-SHAPED MEMBERS, SEAL AND CHASSIS IN ASSEMBLY, A SEPARATE TRANSFORMER PRIMARY WINDING SECURED TO SAID CHASSIS AND IN SERIES WITH EACH IGNITION CIRCUIT BETWEEN THE IGNITION SWITCH AND IGNITION COIL PRIMARY WINDING, A SINGLE TRANSFORMER SECONDARY WINDING ALSO SECURED TO SAID CHASSIS AND OPERABLY ASSOCIATED WITH BOTH SAID TRANSFORMER PRIMARY WINDINGS, A LENS IN THE OPENING IN SAID ONE CUPSHAPED NUMBER AND AN INDICATOR LIGHT POSITIONED ADJACENT SAID LENS AND CONNECTED ACROSS THE TRANSFORMER SECONDARY WINDING FOR ENERGIZATION THEREBY ON OCCURRENCE OF SIMULTANEOUS ENERGY PULSES IN THE TRANSFORMER PRIMARY WINDINGS.