23 WEB AND SHEET HANDLING, GUIDING AND CONTROLLING MACHINERY AND CONTROLS-NAMELY, SCRAYS, ELECTRICAL CONTROLS, UNCURLERS, TENSION CONTROLS OPENING EQUIPMENT, PNEUMATIC CONTROLS, ELECTRONIC CONTROLS, WINDERS, LETOFFS, BRAKES AND CLUTCHES, OPTICAL CONTROLS, WEB VIEWERS, MOISTURE CONTROLS, WEFT STABILIZERS, ROLLS, ROLLERS AND COVERS THEREFOR FOR USE IN ASSOCIATION WITH TEXTILE, PAPER, FOIL AND PLASTIC WEB HANDLING MACHINERY