Wood component member cutting apparatus

Claim 1

A WOOD COMPONENT MEMBER CUTTING MACHINE COMPRISING: (A) A MAIN FRAME STRUCTURE; (B) A FRONT AND A REAR SAW ASSEMBLY SUPPORT STRUCTURE, EACH INCLUDING PIVOT SUPPORT MEANS; (C) FIRST, SECOND, THIRD, AND FOURTH SAW ASSEMBLIES; (D) EACH SAID SAW ASSEMBLY INCLUDING AN ELECTRIC MOTOR DRIVEN CIRCULAR SAW, AND A PARALLELOGRAM LINKAGE MECHANISM; (E) EACH SAID PARALLELOGRAM LINKAGE MECHANISM INCLUDING A BASE LINK AND A SUPPORT LINK; (F) A CARRIAGE ASSEMBLY MOUNTED ON SAID MAIN FRAME STRUCTURE FOR TRANSVERSE LONGITUDINALLY OF SAID MAIN FRAME STRUCTURE; (G) MEANS MOUNTING SAID FRONT SAW ASSEMBLY SUPPORT STRUCTURE ON SAID MAIN FRAME STRUCTURE AND MEANS MOUNTING SAID REAR SAW ASSEMBLY SUPPORT STRUCTURE ON SAID CARRIAGE ASSEMBLY; (H) MEANS MOUNTING THE PARALLELOGRAM LINKAGE MECHANISMS FOR SAID FIRST AND SECOND SAW ASSEMBLIES TO SAID FRONT SAW ASSEMBLY SUPPORT STRUCTURE IN JUXTAPOSED RELATION, WITH SAID RESPECTIVE BASE LINK FIXED RELATIVE TO SAID PIVOT SUPPORT MEANS, WITH ONE OF SAID PARALLELOGRAM LINKAGE MECHANISMS UPSTANDING AND THE OTHER DEPENDING FROM SAID PIVOT SUPPORT MEANS, WITH RESPECTIVE BASE LINK PIVOT AXES ALIGNED BY MEANS OF RESPECTIVE COMMON PIVOT SHAFTS, AND WITH A FRONT COMMON PIVOT AXIS DEFINED BY A LINE WHICH IS NORMAL TO THE POINTS OF INTERSECTION OF THE LONGITUDINAL AXES OF RESPECTIVE SUPPORT LINKS AND BASE LINKS; (I) MEANS MOUNTING THE PARALLELOGRAM LINKAGE MECHANISMS FOR SAID THIRD AND FOURTH SAW ASSEMBLIES TO SAID REAR SAW ASSEMBLY SUPPORT STRUCTURE IN JUXTAPOSED RELATION, WITH SAID RESPECTIVE BASE LINK FIXED RELATIVE TO SAID PIVOT SUPPORT MEANS, WITH ONE OF SAID PARALLELOGRAM LINKAGE MECHANISMS UPSTANDING AND THE OTHER DEPENDING FROM SAID PIVOT SUPPORT MEANS, WITH RESPECTIVE BASE LINK PIVOT AXES ALIGNED BY MEANS OF RESPECTIVE COMMON PIVOT SHAFTS, WITH A REAR COMMON PIVOT AXIS DEFINED BY A LINE WHICH IS NORMAL TO THE POINTS OF INTERSECTION OF THE LONGITUDINAL AXES OF RESPECTIVE SUPPORT LINKS AND BASE LINKS, AND WITH SAID FRONT AND REAR COMMON PIVOT AXES PARALLEL AND LYING IN A COMMON PLANE; (J) MEANS MOUNTING THE ELECTRIC DRIVE MOTOR OF A RESPECTIVE CIRCULAR SAW TO A RESPECTIVE PARALLELOGRAM LINKAGE MECHANISM SUCH THAT A CHORD OF SAID RESPECTIVE SAW COINCIDES WITH A RESPECTIVE SAID FRONT AND REAR COMMON PIVOT AXIS; (K) MEANS FOR SUPPORTING WORKPIECES FOR PASSING SAME BETWEEN SAID SAW PAIRS AT A PREDETERMINED LEVEL RELATIVE TO SAID FRONT AND REAR COMMON PIVOT AXES; (L) AND RESPECTIVE MEANS FOR MOVING SAID RESPECTIVE PIVOT LINKAGE MECHANISMS TO POSITION SAID SAWS IN SELECTED RELATIVE ANGULAR POSITIONS, AND MEANS FOR FIXING SAID SAWS IN THE SELECTED RELATIVE ANGULAR POSITION.