Abstract: A sandwich material is characterized in that it comprises at least three layers, viz a first layer (12), constituting a wear layer, consisting of a polymeric substance with a hardness of between 85.degree. and 100.degree. Shore A, a second layer (9) consisting of rubber with a hardness of between 50.degree. and 70.degree. Shore A, but softer than said first layer, and a third layer (10) consisting of rubber with a hardness of between 20.degree. and 50.degree. Shore A, but softer than said second layer, said second layer being located between said first and third layers.

Abstract: A device for winding coils of a cable, wire etc. is provided with a gabled rotating capstan having a sliding core that alternately holds a cable end or gives free way for the ready-wound coil. A cable laying device is provided with a cable guide and a laying wheel and arranged for laying the cable in even layers between the gables. The winding device is further provided having a cable driving wheel with a ratchet on a rotatable driving arm and an air driven piston for rotating the driving arm and also with a rotatable inserting arm with the mentioned cable guide, where the feeding arm is arranged to push the inserting arm so as to place the cable guide in a position where the cable can be held between the sliding core and one of the gables of the winding coil.