E/MJ : engineering and mining journal . lms. Others nowbeing made will be finished in time for the U. S. Bureau of Mines is completing a large seriesof films, on the metal and mineral mining and manufac-turing industries, showing the progress of the mineralfrom its situs in the earth to the finished commercialmetal or article. The titles of these films were not an-nounced at the time of going to press. The registration badges of all society members meet-ing at the exposition will admit them at the doors with-out other tickets. Protecting Workmen From HeatA heating furnace equipp
E/MJ : engineering and mining journal . lms. Others nowbeing made will be finished in time for the U. S. Bureau of Mines is completing a large seriesof films, on the metal and mineral mining and manufac-turing industries, showing the progress of the mineralfrom its situs in the earth to the finished commercialmetal or article. The titles of these films were not an-nounced at the time of going to press. The registration badges of all society members meet-ing at the exposition will admit them at the doors with-out other tickets. Protecting Workmen From HeatA heating furnace equipped with a water-cooled door,AB, in combination with an electric fan, C, which is de-signed to provide ample means for the protection ofworkmen compelled to work in an exposed position asshown, is illustrated herewith. The increased efficiencyfrom the installation of such devices to alleviate thefatigue resulting from alternate exposure to the furnaceheat and comparatively cool room atmosphere has war-ranted their more general USING A WATIiK-COOLED DOOR AND ELECTRLC FAN FOKHEAT PROTECTION The photograph is reproduced from the Bulletin ofthe Bureau of Safety, Sanitation and Welfare of theUnited States Steel Coi-poration, and shows the arrange-ment used at the works of the National Tube Co. Brass Cartridge Cases for SaleA million and a half brass cartridge cases are to beoffered for sale by the War Department at 20 per centabove the current market price of their metal manufacturers have advised the Director ofSales that there are many novelty and souvenir usesfor these condemned shells. The oflfering includes artillery cases of the following-sizes: 75-mm., weight lb.; , weight ; 6-in., weight lb.; 3-in., anti-aircraft, weight, lb. The Weight Per Rated Horsepower of a combined steamturbine and alternating-current generator is materially lessthan for a unit made up of a reciprocating steam engineand a generator of equivalent c
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Keywords: ., bo, bookcentury1900, bookdecade1910, booksubjectmineralindustries
