Electromagnetic cutting knife and the like actuating mechanism

Claim 1

1 .ELECTRO-MECHANICAL ACTUATING MECHANISM FOR AN IMPACT-OPERATED DEVICE COMPRISING AN ELECTROMAGNET HAVING AN ARMATURE OPERABLE TO AND FRO WITHIN A PREDETERMINED WORKING STROKE UPON ENERGIZATION AND DE-ENERGIZATION, RESPECTIVELY, OF SAID ELECTROMAGNET, A DOUBLE LEVER PIVOTALLY MOUNTED UPON SAID ARMATURE AND HAVING A FIRST AND A SECOND ARM, STOP MEANS UPON SAID ARMATURE AND MEANS TO RESILIENTLY URGE SAID FIRST ARM INTO ENGAGEMENT WITH SAID STOP MEANS, TO BLOCK SAID LEVER AGAINST ROTATION IN A PREDETERMINED DIRECTION, AN ACTUATING LEVER HAVING A STATIONARY PIVOT AND ARRANGED TO HAVE AN END ENGAGING THE END OF SAID SECOND ARM OF SAID DOUBLE LEVER IMMEDIATELY UPON STARTING OF A WORKING STROKE BY SAID ARMATURE, OPERATING MEANS CONNECTING SAID ACTUATING LEVER WITH SAID DEVICE INCLUDING RESILIENT RETURN MEANS, AND STATIONARY STOP MEANS THEREFOR FOR SAID FIRST ARM, TO ROTATE SAID DOUBLE LEVER IN A DIRECTION OPPOSITE TO SAID PREDETERMINED DIRECTION, TO THEREBY DISENGAGE SAID ACTUATING LEVER FROM SAID SECOND ARM, SAID STATIONARY STOP MEANS ARRANGED IN RELATION TO THE OPERATING PATH OF SAID ARMATURE TO EFFECT DISENGAGEMENT OF SAID ACTUATING LEVER FROM SAID SECOND ARM UPON IMPARTING A QUICK-ACTING FORCE UPON SAID DEVICE BY SAID ACTUATING LEVER THROUGH SAID OPERATING MEANS, TO OPERATE SAID DEVICE FROM ITS INOPERATIVE TO ITS OPERATIVE POSITION, SAID RESILIENT RETURN MEANS ADAPTED TO SUBSTANTIALLY INSTANTLY RETRACT SAID DEVICE TO ITS INOPERATIVE POSITION SUBSTANTIALLY INDEPENDENTLY OF THE RETURN OF SAID ARMATURE UPON DISENGAGEMENT OF SAID ACTUATING LEVER FROM SAID SECOND ARM.