Twentieth century handbook for steam engineers and electricians, with questions and answers; a practical nontechnical treatise on the care and management of steam engines, boilers and electric machinery (1922)
Swingle, Calvin Franklin, 1846- [from old catalog] · Chicago, F. J. Drake & company · leaf 930
Ice Making 897 In order to obtain a-bsolutely pure and crystal ice bythis s}^stem^ a complete distilling and filtering processmust be employed. AYater, when evaporated into steam,parts with all of its impurities; the steam is condensed,the water of condensation being entirely pure. All theair must…
