hermann berstorff maschinenbau gmbh of hanover recently presented a combined coating and doubling unit which is designed for a face width of 4500 mm and for a production width of up to 4000 mm the unit is intended for the production of conveyor belts and drive components, made up of one or more layers of fabric with intermediate and covering layers in thermoplastics, these being primarily plasticized pvc and polyurethane. multi-layer plastic coatings can be produced in several operations. over and above this, the unit is basically suitable for producing a wide range of coatings, provided that these are applied to web-type carrier materials, such as loosely and tightly woven fabric, paper, nonwoven fabric, felt, foil and the like. the coating material may be in plastics or elastomer suitable for calendering. over and above this, the unit can be used as a doubling machine to bond together two intermediate products at a time into a finished product. (author abstract). in german