Educational film guide ()

1949 EDITION 669.4-669.7 STORY OF LEAD. USBurMines 1948 29min sd loan 669.4 sh-c-tr-ad Sponsored by the St Joseph Lead Company Depicts underground lead mining, the crushing and concentration of ores, smelting, refining and other steps in the production of "pig" lead for industrial use. As the film begins, a map of Missouri outlines the nation's largest lead belt in the foothills of the Ozarks, 65 miles from St Louis. Huge chat piles — principally limestone waste material from which the lead-bearing ore has been extracted — are brought into focus as monuments to the millions of tons of lead removed from the area since the first mining began back in 1720 Miners are shown 400 feet below the surface, in large, catacomb-like chambers. Scenes depict miners loading dynamite into drill holes before blasting, and a mechanical loader removing the broken limestone rock with shining particles of lead ore in them on a mine car. A trainload of these cars then hauls the ore to a nearby shaft for hoisting to the surface and disposal on a waste dump. Miners are seen at work on high platforms suspended from the roof, swinging back and forth on chamber walls like trapese artists, scaling down loose roof to prevent accidents The latter part of the film describes the complex, step-by-step process of dry-crushing the crude ore, separating the lead from it, and refining and producing commercial lead blocks. Final shots show car loads of lead "pigs" ready for shipment to industrial plants 669.6 Tin TIN FROM BOLIVIA. USBurMines 1946 20min sd loan 669.6 jh-sh-c-ad "Brings to the screen the intensely interesting story of the production of tin, one of the few important metals that Is not mined in the United States. "Produced in cooperation with the largest tin mining company in Bolivia. . . Covers nearly every phase of mining, milling, smelting, and refining of tin. "The film's brevity and photography, together with its non-technical script, make it eminently suitable for telling the story of one of the most essential metals of modern civilization." Film world TIN FROM THE MALAYAN JUNGLE. Holly woodFlm 1947 llmin sd $45 669.6 Jh-sh-tr-ad Guide Deals with tin mining In Malaya, a major source of tin. First, a map is shown indicating the region of the richest tin deposits in Malaya. The next scenes are those of prospectors locating tin deposits. The two main mining methods, open cast and dredge mining, are then depicted. Open cast mining may be accomplished by the hydraulic method or by power shovel The most productive and efficient mining method is that of dredging. Here is an enormous dredge built and launched in the wild jungles of Malaya, it is really a floating factory. The parts of this floating giant came from England, Holland, Scotland and America. Indians, Chinese and Malayans work side by side with European engineers on the huge project. The dredge can handle over 15,000 tons of earth in one day. Aboard the dredge this is processed until it is 75 to 77 per cent pure tin. The tin ore is then taken ashore, placed in sacks and shipped to Singapore for refining and smelting 669.7 Aluminum. Magnesium. Nickel ALUMINUM. Castle 1942 9min sd $13.18 669.7 Jh-sh-tr-ad Produced for the U.S. Office of War Information. Released thru the U.S. Office of Education Shows the manufacture of aluminum — transmutation of bauxite into alumina and thence Into aluminum sheeting ALUMINUM. EBF 1941 15min si $24 669.7 8h-c Guide Shows mining, concentrating, and processing of aluminum. Open pit and tunnel mining are both shown. We also see the preparation of aluminum oxide and its reduction to metallic aluminum in electrolytic cells, the casting procedure, the rolling mill. There are scenes of the fabrication of kitchen ware and examples of practical applications of the metal ALUMINUM FABRICATING PROCESSES. USBurMines 1943 19min sd loan 669.7 tr-ad Also available In a 30min silent version Made in cooperation with the Aluminum Co. of America "Illustrates working and shaping of aluminum into various forms. Scenes in rolling and blooming mill. Making containers by hydraulic extrusion. Making castings. Tests conducted In research laboratory. Uses of some of completed aluminum products." Indiana ALUMINUM: MINE TO METAL. USBurMines 1938 17min sd loan 669.7 sh-tr-ad Also available in a 30min silent version Made in cooperation with the Aluminum Co. of America "Illustrates use of aluminum in transportation, in home, in building, and In industry. Source of bauxite, mineral from which aluminum Is extracted. Mining and purifying of bauxite. Preparation of ingots for fabrication of products." Indiana CURIOSITY SHOP. Alcoa 1948 SOmln sd color loan 669.7 jh-sh-c-ad A sequel to "Unfinished rainbows" (listed below) continuing the human biography of aluminum and the story of free enterprise. Emphasis upon research and development HEAT TREATMENT OF ALUMINUM: PART I. Castle 1946 19min sd $31.44 669.7 c-tr Guide Produced by the U.S. Office of Education. Accompanying filmstrip $1 Explains the purpose of heat treatment; microstructure changes during heat treatment; heat treatment procedure; aging or precipitation hardening; and the effects of heat treatment on the physical properties of aluminum HEAT TREATMENT OF ALUMINUM: PART II. Castle 1946 24min sd $36.59 669.7 c-tr Guide Produced by the U.S. Office of Education. Accompanying filmstrip $1 Explains the nature of cold working operations; crystalline structure of aluminum alloys; slip planes and deformation; microstructure changes during cold working; microstructure changes during annealing; cold work operations; and annealing operations HOW TO FORM ALUM INUM— BLANKING AND PIERCING. USBurMines 1944 16min sd loan 669.7 tr Made In cooperation with the Aluminum Co. of America 517