Apparatus for treating portions of articles in a liquid

摘要

Articles 12 are mounted in a holder 24 and the holder is floatingly supported on a liquid 16 such that only portions 53 of the articles 12 to be treated in the liquid 16 become immersed to a predetermined depth therein. The relative position of the holder 24 with respect to the surface 14 of the liquid remains constant, even though the level of the liquid may change with respect to a tank which holds the liquid. A substantially self-supporting electrical conductor 45 mounted to fixed external structures and tied to the floating holder couples the articles 12 into an electrolytic treating circuit 56 without noticeably changing the immersion depth of the articles. The floating support frame 11 of the holder 24 also includes buoyant blocks 41 which are adjustably mounted with respect to a rigid support structure 17. A lateral shifting of the blocks 41 with respect to the structure adjusts the orientation of the frame 11 and the holder 24 with respect to the surface of the liquid.