V-belts and method for manufacturing same

Claim 1

A V-BELT HAVING AN INNER COMPRESSION SECTION OF RUBBER-LIKE MATERIAL, AND OUTER TENSION SECTION OF RUBBERLIKE MATERIAL AND AN INTERMEDIATE LOAD CARRYING PORTION WHICH COMPRISES A PLURALITY OF PARALLEL TRANSVERSELY ALIGNED LONGITUDINALLY EXTENDING CORD WINDINGS ARRANGED IN THE SAME PLANE AND A CUSHION PORTION OF ELASTOMERIC MATERIAL WITHIN WHICH SAID CORD WINDING ARE EMBEDDED, SAID LOAD CARRYING PORTION BEING ENCLOSED BY UPPER AND LOWER FABRIC LAYERS CONTIGUOUS WITH THE UPPER AND LOWER SURFACES OF SAID CUSHION PORTION AND PARALLEL WITH THE TRANSVERSE ALIGNMENT OF SAID CORD WINDINGS, WHEREBY THE FLOW OF THE ELASTOMERIC CUSHIONING MATERIAL IS PREVENTED AND THE TRANSVERSE ALIGNMENT OF THE CORD WINDINGS IS MAINTAINED IN THE SAME PLANE, WHEREIN THE TRANSVERSE ALIGNMENT OF SAID CORD WINDINGS IS PARALLEL TO THE THEORETICAL NEUTRAL FLEXURAL AXIS OF THE BELT, BUT OUTWARDLY THEREOF SO THAT THE UPPER OF SAID FLOW CONTROL FABRIC LAYERS IS SUBSTANTIALLY ADJACENT TO THE UPPER SURFACE OF THE BELT.

Claim 3

A METHOD FOR THE MANUFACTURE OF V-BELTS COMPRISING SUPERIMPOSING A LAYER OF ELASTOMERIC COMPRESSION STOCK, A LAYER OF FABRIC, A LAYER OF ELASTOMERIC CUSHIONING MATERIAL, A LAYER OF LONGITUDINAL CORD WINDINGS, A SECOND LAYER OF AN ELASTOMERIC CUSHIONING MATERIAL, A SECOND LAYER OF FABRIC AND A LAYER OF ELASTOMERIC TENSION STOCK AND SUBJECTING THIS LAMINATED STRUCTURE TO VULCANIZATION AND CONSOLIDATING THE RESPECTIVE LAYERS INTO A UNITARY BODY, THE ELASTOMERIC MATERIAL OF AT LEAST SAID COUSHIONING LAYERS HAVING A MOONEY VISCOSITY OF LESS THAN 30 AT A TEMPERATURE OF 250* F. AND THE THICKNESS OF SAID CUSHIONING LAYERS AT THE TIME THEY ARE APPLIED TO THE BELT STRUCTURE RANGING FROM .2739 TO .6073 TIMES THE DIAMETER OF SAID LONGITUDINAL CORD.

Claim 4

A METHOD FOR THE MANUFACTURE OF V-BELTS COMPRISING SUPERIMPOSING A LAYER OF ELASTOMERIC COMPRESSION STOCK, A LAYER OF FABRIC, A LAYER OF ELASTOMERIC CUSHIONING MATERIAL, A LAYER OF LONGITUDINAL CORD WINDINGS, A SECOND LAYER OF AN ELASTOMERIC CUSHIONING MATERIAL, A SECOND LAYER OF FABRIC AND A LAYER OF ELASTOMERIC TENSION STOCK AND SUBJECTING THIS LAMINATED STRUCTURE TO VULCANIZATION AND CONSOLIDATING THE RESPECTIVE LAYERS INTO A UNITARY BODY, THE ELASTOMERIC MATERIAL OF AT LEAST SAID COUSHIONING LAYERS HAVING A MOONEY VISCOSITY OF LESS THAN 30 AT A TEMPERATURE OF 250* F. AND THE THICKNESS OF SAID CUSHIONING LAYERS AT THE TIME THEY ARE APPLIED TO THE BELT STRUCTURE RANGING FROM .2739 TO .6073 TIMES THE DIAMETER OF SAID LONGITUDINAL CORD.