Rotary crop shear knives and the like

Claim 1

A ROTARY CROP SHEAR KNIFE AND THE LIKE FOR HOT METAL WORK FOR INSERTION IN A GROOVE HAVING PARALLEL SIDES IN A ROTATABLE DRUM, COMPRISING, IN COMBINATION, TWO STRAIGHT KNIFE SECTIONS OF RIGHT AND LEFT HAND TOGETHER FORMING A CHEVRON IN PLAN WHEN THE INNER ENDS OF SAID SECTIONS ENGAGE ONE ANOTHER OVER THEIR ENTIRE SURFACES, EACH OF SAID SECTIONS HAVING TRANSVERSE PLANAR FACES AND TRANVERSE STRAIGHT EDGES, EACH SECTION HAVING A GENERALLY VERTICAL OPERATIVE FACE FORMING ONE SIDE, A STRAIGHT CUTTING EDGE COMPRISING THE OUTER TRANSVERSE EDGE OF SAID OPERATIVE FACE, AN OPPOSITE SUPPORT FACE TAPERING UPWARDLY FROM THE BOTTOM GENERALLY TOWARD SAID OPERATIVE FACE, THE HEIGHT OF SAID OPERATIVE FACE BEING GREATER THAN THE HEIGHT OF SAID SUPPORT FACE, A COMPOUND BEVEL FACE EXTENDING DOWNWARDLY FROM SAID CUTTING EDGE IN A DIRECTION AWAY FROM SAID OPERATIVE FACE TO THE TOP EDGE OF SAID SUPPORT FACE, A BOTTON FACE EXTENDING BETWEEN THE BOTTOM EDGES OF SAID OPERATIVE AND SUPPORT FACES, THE INNER END OF EACH SECTION BEING PLANAR AND AT AN ANGLE TO SAID OPERATIVE FACE EQUAL TO ONE-HALF THE INCLUDED ANGLE OF SAID CHEVRON, A LINER MEMBER HAVING A STRAIGHT PLANAR FACE AND A SPACED CHEVRON FACE AGAINST WHICH THE OPERATIVE FACES OF THE SECTIONS BEAR AND A PLURALITY OF WEDGE MEMBERS ADAPTED TO BEAR ON THE SUPPORT FACE AND ONE SIDE OF THE GROOVE.