e takes place. the apparatus is folded, the boxes rest, as shown in Fig. 3, against the side walls of the main case. The trays, D, are made of sheet zinc, and are controlled from both sides of the volves upon aline roller frame of 43 feet diameter. It stands ninety seconds. At the expiration of… … ter, the plate is finally lowered and washed. Nothing fur- ther remains to be done but the usual finishing treatment. Patented in the United States; Great Britain, France, and Belgium through the Scientific American Patent Agency. For further particulars address the inventor, Wm. A. Brice, care of…
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