Shears with a stationary blade and a movable blade

Claim 1

SHEARS FOR TRIMMING ROLLED METAL SHEETS OR PLATES, COMPRISING: A STATIONARY LONGITUDINAL BLADE, A MOVABLE LONGITUDINAL BLADE CO-OPERATING WITH THE SAID STATIONARY BLADE, A PAIR OF TRANSVERSE BLADES LOCATED AT THE DELIVERY END OF THE LONGITUDINAL BLADES FOR CUTTING UP A BORDER STRIP SEVERED BY THE LONGITUDINAL BLADES, AND A BEARING SURFACE FOR SUPPORTING THE METAL SHEET OR PLATE THAT IS BEING TRIMMED, ONE OF THE TRANSVERSE BLADES EXTENDING OUTWARDLY OF THE SAID BEARING SURFACE AND BEING DRIVEN, FOR CUTTING UP THE SEVERED BORDER STRIP, IN UNISON WITH THE MOVABLE LONGITUDINAL BLADE, AND THE OTHER TRANSVERSE BLADE BEING MOVABLE INTO ITS CUTTING POSITION FOR CUTTING UP THE SEVERED BORDER STRIP AND OUT OF ITS CUTTING POSITION TO FACILITATE THE ADVANCE OF THE PARTIALLY SEVERED BORDER STRIP ALONG WITH THE SHEET THAT IS BEING TRIMMED, THE CUTTING EDGE OF THE MOVABLE LONGITUDINAL BLADE BEING ARRANGED AT AN ACUTE ANGLE WITH THE SAID BEARING SURFACE, AND BEING STILL IN CONTACT WITH THE STATIONARY LONGITUDINAL BLADE EVEN IN THE OPEN POSITION OF THE SHEARS, AND THE ANGLE OF INCLINATION AND THE WORKING STROKE OF THE MOVABLE LONGITUDINAL BLADE BEING SO DIMENSIONED THAT ON THE ENTRY SIDE OF THE SHEARS, AT THE TERMINATION OF A CUT, THE END OF THE MOVABLE LONGITUDINAL BLADE IS LOCATED AT A DISTANCE FROM THE STATIONARY LONGITUDINAL BLADE EQUAL TO THE THICKNESS OF THE SHEET TO BE CUT.