Low-friction retractor

Claim 1

A COMPOSITE REACTOR FOR USE WITH A CONVENTIONAL SPINDLE HAVING ROTATIONALLY FACING DRIVING AREAS THEREON, A CONVENTIONAL FRAME HAVING INTERIOR GUIDE SURFACES AND A CONVENTIONAL LATCH BOLT ASSEMBLY COOPERABLE THEREWITH, SAID RETRACTOR COMPRISING A METAL SKELETON HAVING ENGAGING MEANS AT THE FORWARD END OF SAID RETRACTOR ADAPTED TO ENGAGE SAID LATCH BOLT ASSEMBLY, SAID SKELETON INCLUDING OPPOSITE SPACED SIDE WALLS AND UPPER AND LOWER LONGITUDINAL EDGE PORTIONS ON EACH OF SIDE WALL FORMING PART AND LOWER RETRACTOR GUIDES ON EACH SIDE WALL FORMING PART OF SAID METAL SKELETON, EACH SAID GUIDE COMPRISING A LUG INTERMEDIATE THE FORWARD AND REAR END OF THE RESPECTIVE LONGITUDINAL EDGE PORTION, EACH RESPECTIVE LUG HAVING AN EDGE FACING FORWARD FOR ENGAGEMENT WITH SAID DRIVING AREA AND HAVING A LATERALLY OUTWARDLY FACING SIDE FACE, AND A PAIR OF UPPER AND LOWER SHOES HAVING AN INTERTHETIC PLASTIC RESIN MATERIAL, SAID SHOES HAVING AN INTERLOCKED ENGAGEMENT WITH RESPECTIVE UPPER AND LOWER PORTIONS OF SAID METAL SKELETON, EACH SAID SHOE HAVING A VERTICALLY OUTWARDLY FACING FRAME ENGAGING SURFACE BETWEEN OPPOSITE SIDES AND LATERAL FRAME ENGAGING SIDE PLATES LOCATED REARWARDLY OF THE RESPECTIVE LUG, EACH SAID SIDE PLATE HAVING THE EXPOSED SIDE SURFACE EXTENDING LATERALLY OUTWARDLY AT LEAST AS FAR AS THE ADJACENT SIDE FACE OF THE RESPECTIVE LUG.