Early protection techniques: Part 8

The interesting feature of this first device (Fig. 1) by Uyeno is that it had a combined aluminium coating and burnishing action. The wire to be coated with aluminium was first tinned or galvanized and then immersed in a vessel or successively in two or more vessels containing molten aluminium, the articles while so immersed were swept or rubbed by steel brushes or their equivalent, so that the coating of zinc or tin was removed and replaced by aluminium. The articles could then be pressed, rolled, and polished or burnished.