| 摘要 |
An improved slip ring and brush assembly such as for carrying the return signal pulse to a glow discharge tube on a rotating disc sonar. The rotating disc is made of insulating material and has a cylindrical hub which is adapted to fit over a corresponding hub on a motor shaft. Annular slip rings made of conductive plastic are adapted to slip over the cylindrical hub and are indexed against relative rotation by means of cylindrical bulges or projections on opposite sides of the hub. These projections serve to carry the electrical connections, in the form of threaded screws and springs that are adapted to contact the slip rings, one set for one slip ring, and the other for the other slip ring. The slip rings are separated by thin insulating washers of larger diameter than the rings. The brushes are made of graphite fibers and have excellent flexibility, conductivity and long life.
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