Arizona silver belt., 1902-04-10
NEW ORE PROCESS
The Hooper Pneumatic Concentratof Which Is
 Expected to Prove Useful h Dry Regions.

The Hooper Pneumatic Concentratof Which Is
 Expected to Prove Useful In Dry Regions.
 w, s. Baker, who has charge of the Arizona and New Mexico field, with headquarters at Fl Paso, for the Gen" eral Concentrates company, of New
 York, was in Tombstone recently. Mir. Baker represents a new ore separation process that is peculiarly adapted to the arid regions of the west and is des- tined to revolutionize mining methods. The new process of ore treatment is embodied in the Hooper pneumatic concentrator, which is capable of suo- cessiully treating any sulphide, base or complex ore that has hitherto batlled other methods of treatment and is performed by the new process at such a minimum cost, while in tEe mean time efiecting a saving of the highest possible percentage of values, that the machine and it's simple but practicable method is a revelation of mechanical devices. Mir, Baker, in speaking of the pneumatic process to Prospector reporter, stated that one of it's chief advantages was the separation of the metals practically without water. Va rious cOncentrators on the market have accomplished separation with va ried results, the well-known wet pro. cess, where seven to twelve tons of water is the estimated requirementf for the treatment ofo ton of ore, is prac- tIcally prohibitive, while the losses at- tendant upon wet concentration, and character of the material in which the values are held, renders it eXpensively waSteful. The inventive genius that has evolved the pneumatic coucen Sra. tor, has surmounted the difficulties presented and it's workings and results make the machine especially adapted to the mineral sections of Arizona.
 The cOncentrator consists of table capable of various inclinations, sup ported by grating, and in turn, sup. ported by mesh work of rifles and skimmerS. Pulsations Uf air are intro duced through series of valves and beat upon the lower side of the table at the rate of foo to 45O per minute. These pulsations are the esecret,' said Mr. Baker, 'the tiny particles of crushed ore are projected into the air, so to speak, passing over the rifles but guided in their progress by the skim. mers toward the left side of the table. The heavIer particles fail tO get over the rifles, but follow the same to the opposite side of the table, while that material which is of average weight passes down midway between the two extremes, It follows that when rock contains two or more metals they are gradually jumped away from each oth. CT and delivered as separate conceu- trates. The difference in the buoyaucy of water and air makes the pneumatic process produce more satisfactory re- suits and is exceedingly simple in ope- ratiQnn
 MT Baker states that his company are in the field for the purchase of min ing properties in Arizona and will put up mills with the pneumatic concen- trators, paying royalties on the output until the mills are on paying basis. Our company is now building 10O- ton mill on the property of the Grape vine Lead company in Socorro county, N. M., and another at Cooks Peak, in Luna county, N. NJ The company is negotiating for the purchase on royal ties of several mines in the southwest, and may close deal in this county for a promising group, in which event we will erect 30ton plant on same. am authorized to close contracts for the erection oi at least one mill per month. n
 The plan offers an opportunity to Arizona mine owners to place their property on q paying basis, and may appeal to many who are interested in the plan Mir. Baker left February ? for Fl Paso, which city is his head I,porfnrC