Method of making a roller

Abstract

Abstract A ROLLER COMPRISES A RIGID CYLINDRICAL SLEEVE FORMED OF FIBERGLASS WHICH IS COATED WITH RESIN. THE OUTER SURFACE OF THE SLEEVE IS MACHINED TO REMOVE SUBSTANTIALLY ALL VISIBLE RESIN THEREFROM AND TO EXPOSE THE FIBERGLASS. THE FIBERS OF FIBERGLASS PROVIDE SUBSTANTIALLY FUZZY SURFACE CHARACTERISTICS ON THE OUTER SURFACE OF THE SLEEVE. AN ELASTTOMERIC SLEEVE IS MOLDED AROUND THE OUTER SURFACE OF THE RIGID SLEEVE. FIBERS OF THE FIBERGLASS EXTEND INTO THE ELASTOMERIC SLEEVE AND DEFINE A ZONE HAVING AN ELASTICITY MODULUS WHICH IS BETWEEN THAT OF THE RIGID SLEEVE AND THE ELASTOMERIC SLEEVE. THE ROLLER IS FORMED BY COATING FIBERGLASS FILAMENTS WITH RESIN AND SINDING THEM UPON A ROTATING MANDREL. WHEN A DESIRED THICKNESS OF RESIN COATED FILAMENTS ARE ON THE MANDREL, THE FILAMENTS ARE CUT AND THE ASSEMBLY IS HEATED TO PARTIALLY CURE THE RESIN WHILE THE MANDREL IS ROTATED. FOLLOWING THE FINAL CURING OF THE RIGID SLEEVE, IT IS PLACED IN A LATHE WHERE ITS OUTER SURFACE IS MACHINED TO REMOVE FREE VISIBLE RESIN ON ITS EXTERIOR SURFACE AND TO EXPOSE THE FIBERGLASS FIBERS. THE EXTERIOR OF THE RIGID SLEEVE IS THEN COATED WITH A BONDING AGENT AND AN ELASTOMERIC SLEEVE IS BONDED TO ITS EXTERIOR SURFACE.

Inventors

• 👤 W Griffiths

Bibliographic Details