Arizona weekly citizen., 1882-04-16
Smelling Furnaces.

l AiulnS GdLclle.
 The water jacket furnaces, for both galena and copper ores, built by Messrs. Rankin, BraytOn < O., of the Pacific Iron Works, San Francisco, have worked q revolution in the smelting business of this country. The advantages demon strated Tn these furnaces are facility and cheapness of transportation and cUn- ! structiOn, economy of fuel, fineness of bullion and uninterrupted work. Any ore that can be smelted, it is claimed, | can be worked cheaper Tn these furnaces l than by any other process. The mining interests of the country are largely in- debted to the enterprise of this firm for working up to such a state Of perfection this important branch of mining ma chinery. A large number of companies in Idaho, ArizOna, New Mexico and Ne vada are operating these furnaces " th most satisfactory results. The manu. lecturers report orders recently received for three of their 40-ton smelters to be he erected Ill the Wood river country thIs coming spring, and also a large number of others for different parts of the country. Below will be found a statement from the Superintendent of the well known Castle Dome smelring works Tn reference to the operation ol these smelters.
 MELRosR, CAL. Feb. IS, 1882. MEssRs. RANKIN, BRAYToN, ( Co.,,
 Pacific Iron Works, San Francisco, Cal.
 GENTLEMES:-ln reply to your appli- cation for d statement of the working O. our furnaces. would say that We have two of your 40-ton Galena Shelters in our works that have been running most Of the time for the past two years. With ordinary care l have no difficulty in keep ing them in condition for constant ser vice. The patent circulating plates, recently introduced into your water jackets, I regard as the most important improvement ever made in water jacket furnaces and worth more than the entire cost of an ordinary jacket.
 There Is no question but that a jacket for either galena Or copper ores. with thi- improvement. will last two or three times as long as without it, besides lessening the liability to injury and the consequent expense and loss of time for repairs. Since the adoption of the improvement l have had no trouble whatever with my jackets. The circulation of the water l. so rapid that the inner surfaces of the plates are kept secured and entirely free from any incrustation, and it seems tO afford perfect protection from the effects of mineralized water, and from the over heating and burning ont SO common in all other jackets. Your style of section al water jackets has many and obviOu. advantages over all other forms. Tn, distribution of the blast and the angle nf the tuyeres are such as are calculated to secure perfect combustion and the greatest economy of fuel.
 With a long and varied experience ID smelling ores from a wide range of min eral country, 1 unhesitatingly give your furnaces the preference over any I have ever seen. The machinery comprising the smelling plants furnished by your firm 1 regard as admirably suited to that purpOse-complete in detail and adapted to all the requirements of practical work The improvements you haae made in this class of machinery are recognized aA of great value to the mining interests Oi the country, and makes smelling, under ordinary conditions, the cheapest form of reduction for any ores that can be worked by this process. Yours truly.
 W. F. MILLER, Superintendent.