Material cutting machine having reciprocating cutting blade adapted to enter material without an entrance cut

Abstract

Abstract A MATERIAL CUTTING MACHINE HAS A RECIPROCATING CUTTING BLADE MOUNTED FOR CUTTING MATERIAL, WHICH IS MOVABLE BOTH TRANSVERSELY AND LONGITUDINALLY RELATIVE TO THE CUTTING BLADE. MEANS, WHICH DOES NOT RECIPROCATE WITH THE CUTTING BLADE BUT MOVES WITH THE CUTTING BLADE WHEN IT IS LIFTED UPWARDLY FROM THE MATERIAL OR MOVED DOWNWARDLY INTO THE MATERIAL, PROVIDES A GUIDE FOR THE BLADE DURING CUTTING. THE CUTTING BLADE GAS ATS LOWER END SHARPENED OR THE LOWER END OF THE GUIDE MEANS SHARPENED OR BOTH ARE SHARPENED SO THAT THE MATERIAL IS PIERCED TO PERMIT ENTRY OF THE CUTTING BLADE AND THE GUIDE MEANS INTO THE MATERIAL. THE LOWER ENDS OF BOTH THE GUIDE MEANS AND THE CUTTING BLADE ARE SUPPORTED BY SUPPORT MEANS BENEATH THE MATERIAL. THE SUPPORT MEANS IS ROTATED SIMULTANEOUSLY WITH THE CUTTING BLADE SO THAT THE SUPPORT MEANS IS MAINTAINED IN THE DESIRED ALIGNMENT WITH THE CUTTING BLADE WHEN THE HEADING OF THE CUTTING BLADE IS CHANGED.

Inventors

• 👤 George W Sederberg

Bibliographic Details