1. A MACHINE FOR AUTOMATICALLY CUTTING STRIPS OF PREDETERMINED LENGTHS COMPRISING, IN COMBINATION: A SUPPORTING STRUCTURE; ADJUSTABLE GUIDE MEANS ON SAID SUPPORTING STRUCTURE FOR GUIDABLY AND MOVABLY SUPPORTING A CONTINUOUS STRIP OF CUTTABLE MATERIAL; FEEDING MEANS OPERATIVELY CONNECTED TO SAID STRIP, SAID FEEDING MEANS COMPRISING TWO ELECTRIC MONTOR DRIVEN GEARED ROLLERS THROUGH WHICH THE STRIP PASSES AND IS ADVANCED ALONG SAID GUIDE MEANS; A STRIP CUTTING MECHANISM POSITIONED ON SAID SUPPORTING STRUCTURE ADJACENT TO THE PATH OF TRAVEL OF SAID STRIP, A CONTROLLABLE ACTUATING MEANS FOR SAID CUTTING MECHANISM; MEANS FOR CONTROLLING THE ACTUATION OF SAID STRIP CUTING MECHANISM COMPRISING A PAIR OF ROTATABLE FLANGED PULLEYS SUPPORTED IN VERTICAL ALIGNMENT FROM THE SAID SUPPORTING STRUCTURE, THE UPPER DRIVING PULLEY BEING FIXED WITH RELATION TO SAID SUPPORTING STRUCTURE AND HAVING A SPROCKET WHEEL ATTACHED THERETO, THE LOWER DRIVEN PULLEY BEING VERTICALLY ADJUSTABLE IN ITS SUPPORT WITH RELATION TO SAID UPPER DRIVING PULLEY, A MULTIPLE SLOTTED BELT PASSING AROUND SAID PULLEYS, A PHOTOELECTRIC UNIT SUPPORTED BY SAID SUPPORTING STRUCTURE ADJACENT TO SAID SLOTTED BELT AND OPERATIVELY CONNECTED THEREWITH, SAID SLOTTED BELT PASSING THROUGH THE CONTINUOUSLY OPERATED LIGHT BEAM EMITTED BY SAID PHOTO-ELECTRIC UNIT, AND POWER RELAY MEANS OPERATIVELY CONNECTED WITH SAID PHOTO-ELECTRIC UNIT FOR SUPPLYING ELECTRICAL POWER IMPULSES TO THE SAID CONTROLLING ACTUATING MEANS FOR THE SAID CUTTING MECHANISM; AND SYNCHRONIZING MEANS OPERATIVELY CONNECTING SAID FEEDING MEANS AND SAID CONTROLLING MEANS COMPRISING A SPROCKET WHEEL AFFIXED TO THE AXLE OF ONE OF SAID MOTOR DRIVEN GEARED ROLLERS AND A ROLLER CHAIN CONNECTING SAID ROLLER SPROCKET WHEEL WITH SAID UPPER DRIVING PULLEY SPROCKET WHEEL WHEREBY THE LENGTH OF THE CUT STRIPS IS FUNCTION OF THE DISTANCE BETWEEN THE SLOTS IN THE SLOTTED BELT.