GB513246A - Improvements in apparatus for continuously electroplating strip metal stock - Google Patents

Abstract

513,246. Electroplating. NACHTMAN, J. S. Dec. 29, 1937, No. 9540/39. Divided out of 503,475. [Class 41] [Also in Group XXII] In apparatus for continuously electroplating moving strip metal stock, which may include cleaning, alloying, and brightening devices as well as the electroplating device, the stock is moved through the apparatus under tension and a lower relative tension maintained during electroplating. The strip is preferably passed over rollers during plating, which rollers are driven so as to prevent building-up of tension during plating ; further tension may be applied after the plating step. Stock is drawn from one of the supply reels 5, Fig. 1a over table 15 used for welding ends together, pressure rollers C, through the slack producer D comprising a rising and falling carriage. 34 having rollers over which the stock is looped, squeegee C<1>, cleaning tank F, scrubbing mechanism G, rinse tank H, pickle tank I, scrubbing mechanism G<1>, power driven bridle stand J, thence into the electroplating bath K, the stock being looped under and over rollers 68, 69 some of which may be power-driven so as to reduce the tension on the stock during plating, then through squeegee C<2>, scrubbing mechanism G<2>, rinse tank L, hot air drier M, hot oil tank N for alloying, cold oil tank O for brightening, squeegees C<4>, C<5>, cleaning and rinsing tanks P, P<1>. electrolytic cleaning tank Q, rinse tanks L<1>, L<2>, squeegee C<8>, hot air drier M', bridle stand J<1> and wind-up mechanism 99. Instead of a hot oil tank N for alloying, a furnace may be used, in which case all subsequent cleaning steps are omitted. The welding table 15, Fig. 2, comprises a feed roller 14, guide 16 and welding head 18, arranged to produce a plurality of spot welds, thence to adjustable spring-loaded pressure rollers 20, 21 and to a clamping device 26, 27, which is used during welding.