摘要:
A prefabricated composite element for building, together with a plurality of similar elements, a breakwater sea wall comprising a pole (2) having a poligonal cross section with a pointed tip, supporting a plurality of breakwater arms (3) threaded in succession upon the pole in a progressively offset manner according to the edges of the pole.
摘要:
A device for the erection of the mast of a sailing board for «windsurf» includes an articulated joint comprising separate members kept coupled together by means of a system comprising a flexible rope and a spring, such that a displacement of the mast from the vertical attitude causes the loading of the spring thus creating a force tending to bring back in vertical attitude the mast. The device may be assembled on a track that allows to change the position of the foot of the mast through the operation of a pedal.
摘要:
A prefabricated composite element for building, together with a plurality of similar elements, a breakwater sea wall comprising a pole (2) having a poligonal cross section with a pointed tip, supporting a plurality of breakwater arms (3) threaded in succession upon the pole in a progressively offset manner according to the edges of the pole.
摘要:
A device for the erection of the mast of a sailing board for «windsurf» includes an articulated joint comprising separate members kept coupled together by means of a system comprising a flexible rope and a spring, such that a displacement of the mast from the vertical attitude causes the loading of the spring thus creating a force tending to bring back in vertical attitude the mast. The device may be assembled on a track that allows to change the position of the foot of the mast through the operation of a pedal.
摘要:
A road edge marker comprising a reflector support divided into two aligned portions joined together by means of a hinge which allows the two portions to shift in case of collision. The hinge consists of sleeves fixed to said portions, connected to one another by an elastic member, such as a spring or a caoutchouc tube, which brings them back to their original position.
摘要:
A road edge marker comprising a reflector support divided into two aligned portions joined together by means of a hinge which allows the two portions to shift in case of collision. The hinge consists of sleeves fixed to said portions, connected to one another by an elastic member, such as a spring or a caoutchouc tube, which brings them back to their original position.