Abstract: In connection with a device for tightening a rope, preferably an electric wire, it is suggested to use a base member (101) adapted to be attached to the support along which the wire (117) is to be stretched, resilient means (104a, 104b) which are carried or held by the base member (101) as well as a holding member (111) which can be displaced relative to the base member 101 under the influence of the resilient means (104a, 104b), and which is adapted for the rope or wire (117) to be attached thereto, the holding member (111) after the wire (117) has been attached to it, being displaceable from a preloaded installation position in which the wire is stretched and fixed to the holding member (111), to a wire tightening position, in which the holding means 111 via the resilient means (104a, 104b) transfer a tightening force to the wire (117).

Abstract: A method of producing laminar structures, preferably consisting of fibreglass-reinforced polyester, which are free of air-pockets and pores, by spraying layers of the plastics and reinforcement fibres at a partial vacuum. The method may be carried out by an industrial robot. An airtight surface layer may be sprayed onto the laminate, whereby any pores or air-pockets collapse when the laminate is exposed to air at atmospheric pressure.