Machines for cutting lengths of strip material

Claim 1

A MACHINE FOR CUTTING LENGTHS OF STRIP MATERIAL COMPRISING A FIXED CUTTER BLADE, A ROTATABLE CUTTER BLADE HAVING A CUTTING EDGE OF SIMILAR SHAPE TO THAT OF SAID FIXED BLADE AND CO-OPERATING WITH SAID FIXED CUTTER BLADE AND MEANS FOR FOR DRIVING SAID ROTATABLE CUTTER BLADE AND MEANS FOR FEEDING A CONTINUOUS STRIP OF MATERIAL ACROSS SAID FIXED BLADE TO BE PERIODICALLY CUT BY SAID ROTATABLE BLADE, AT LEAST ONE OF SAID DRIVING AND FEEDING MEANS BEING ADAPTED FOR ADJUSTMENT OF THE RELATIVES RATES OF ROTATION OF THE ROTATABLE BLADE AND OF LINEAR FEED OF THE STRIP, SAID DRIVING MEANS FOR SAID ROTATABLE CUTTER BLADE COMPRISING A MEMBER MOUNTED FOR ROTATION ABOUT AN AXIS, MEANS FOR ROTATING SAID MEMBER, MEANS PIVOTING SAID ROTATABLE CUTTER BLADE ADJACENT A FIRST END THEREOF TO SAID MEMBER ABOUT AN AXIS PARALLEL TO AND SPACED FROM SAID ROTATIONAL AXIS OF SAID MEMBER THUS ALLOWING ROTATIONAL AND LATERAL MOVEMENTS OF SAID ROTATABLE BLADE RELATIVE TO SAID MEMBER, SAID AXES BEING SO DISPOSED THAT SAID ROTATABLE BLADE MOVES ACROSS SAID FIXED BLADE WITH A SCISSORS AND LATERAL ACTION, RESILIENT MEANS ACTING BETWEEN SAID MEMBER AND SAID ROTATABLE BLADE TO BIAS SAID ROTATABLE BLADE TO A NORMAL POSITION RELATIVE TO SAID MEMBER, STOP MEANS LOCATED IN THE PATH OF A SECOND END OF SAID ROTATABLE BLADE AND OPERATIVE TO ARREST SAID ROTATABLE BLADE AS IT APPROACHES SAID FIXED BLADE, AND TO BECOME INEFFECTIVE AS SAID FIRST END OF SAID ROTATABLE BLADE COMES ADJACENT TO SAID FIXED BLADE, ROTATION OF SAID MEMBER DURING THE PERIOD WHEN SAID ROTATABLE BLADE IS ARRESTED CAUSING SAID RESILIENT MEANS TO BECOME STRESSED SO THAT WHEN SAID STOP MEANS BECOMES INEFFECTIVE SAID RESILIENT MEANS AND SAID ROTATION OF SAID MEMBER CAUSE SAID ROTATABLE BLADE TO SWEEP RAPIDLY ACROSS SAID FIXED BLADE SAID SCISSORS ACTION.