| 摘要 |
The all-weather wind-protecting chimney top is composed of a closed square- or prallelogram-shaped box (3). Its base is open to be adapted to the chimney, the two oposite sides and the top are closed, whereas the two other sides bear an opposed opening with the doors (1) fixed by the hinge (2). The doors are interconnected by means of the spindle (5) which is safely and freely seated on the iron angles (4) placed inside the doors. According to this embodiment, owing to their wheight, the doors are open at an angle and held by plates (6) which are liable to be adapted to the corresponding sides. In dependence on the chimney size, the doors of the top in question can be manufactured in various dimensions from a plurality of materials, which are said to permit the shaping of ductible laminae (any type of metal, plastic...); the main box is manufactured from cement, concrete bricks, bricks, or any other building material in any possible combination with the above ductible materials. |
