Electrochemical and metallurgical industry . ening in the forward end of the box, leaving this material high up out ofdanger. There is also a saving of clean wash water as a re-sult of using a long feed-box. Fig. I shows diagramatically the separation of the materialinto different zones. At the point D. which is the point offinal separation, both the mineral particles and the silica comeoff light, with practically no mixture of mineral and silica,but with a clean separation, and consequently but little mid-dlings. (This is an important difference from the action of Exhibits at Boston Electrica
Electrochemical and metallurgical industry . ening in the forward end of the box, leaving this material high up out ofdanger. There is also a saving of clean wash water as a re-sult of using a long feed-box. Fig. I shows diagramatically the separation of the materialinto different zones. At the point D. which is the point offinal separation, both the mineral particles and the silica comeoff light, with practically no mixture of mineral and silica,but with a clean separation, and consequently but little mid-dlings. (This is an important difference from the action of Exhibits at Boston Electrical Exhibition. In the Boston Electrical Exhibition, held from July 15 to 22,the General Electric Company had one of the largest spaces inthe center of the main floor, covering about 1300 square principal feature of this exhibit, and probably the newestthing in the entire exhibition, was the new G. E. 2^-watt in-candescent lamp. The companys exhibit was brilliantly illumi-nated with these units. The lamp should be of special interest. FIG. 3.—OVERSTROM TATILES IN MILL OF n.\LTIC MINING CO. to our readers in view of the role which the electric furnaceplays in the manufacture of the filament. (See the paper ofJ. W. Howell, p. 252 of our last issue.) This is the first exhibition to the general public where thiscarbon filament has been shown, and the Electrical Contractors,under whose auspices the exhibition was held, may well feelproud to have their show characterized by such an importantevent. The new metallized carbon filament lamp is made inthree sizes, Nos. 3, 4 and 5. the watt consumption being 125, 320 AXn . IXDISI UV. IVm iii N„. 8. \S7/] and -50 watts per lamp, rcspcctivi-ly. These lamps arci:sed witii a special line of llolopliane pagoda rellectors, whichare made in two forms, one which distributes the light hek>wthe horizontal plane, and the other which concentrates thecandle power in a downward direction. The following tal
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Keywords: ., bookcentury1900, bookdecade1900, booksubje, booksubjectmetallurgy
