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  • Description: step
(82 results)



Display: 20

    • Routing Lucite

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    • Vertical spindle wood shapers or routers give excellent results for both contour and step routing Lucite methyl methacrylate rein. On vertical spindle shapers, multiple blade cutters may be used. Square routing or shaping to templates, as shown,...
    • Roving frame

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    • This roving frame in the staple processing laboratory at DuPont's Kinston, North Carolina plant where Dacron polyester fiber is made, is spinning yarn from this fiber. The roving frame is the third step in spinning staple fiber into yarn and this...
    • Dacron production

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    • At DuPont Kinston, North Carolina plant where Dacron polyester fiber is made, the company also maintains a complete textile laboratory, part of which is shown here. The purpose of the laboratory is to enable the plant to keep a check on how Dacron...
    • Preliminary step

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    • A preliminary step in the manufacture of toothbrushes at the Leominster, Massachusetts plant of E.I. du Pont Nemours & Company. A native Russian in the bristles department washing, bleaching and tying raw Russian bristles into bundles. The DuPont...
    • Metals-Aluminum

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    • Before bauxite can become the metal aluminum, the alumina must be removed from it. A step in the wet chemical process for obtaining alumina (aluminum oxide) is shown here. Impurities are being removed from the solution containing the bauxite. In...
    • Happy Mishap

    • Peanut butter; Oils & fats; Food processing machinery; Food industry;
    • Folksy tour of Beech-Nut peanut butter manufacturing plant. Each step in the process from incoming bags of peanuts to final packed jar is illustrated.
    • Flaming cyanide pots

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    • Flaming cyanide pots at the DuPont Electrochemicals Department plant at Niagara Falls, NY where sodium cyanide is made from sodium, ammonia and charcoal. Salt is broken down by electrolysis into sodium and chlorine, each of which then enters into...
    • Reactor

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    • What at first glance appear to be a mass of pipes and wheels is really an important reactor in which chlorine from salt is combined with acetylene to form tetrachlorethane at the DuPont Companys Electrochemicals Department plant at Niagara Falls...
    • DuPont Magazine [November-December 1921]

    • Periodicals; Chemical industry; Explosives; Dynamite; Textile industry; Dyeing;
    • Table of Contents: War doesn't pay; What happened in the cellar at police headquarters; Keeping in step with Pyralin; Building up Bemidji with dynamite; Blasting drilled wells to increase the flow of water;.
    • Salt

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    • Billions of pounds of common table salt are converted annually into chemicals used by industry and in the home. This mountain of salt is typical reserve supply at t a DuPont plant where electricity separates salt into sodium and chlorine as the...
    • DuPont Magazine [November-December 1979]

    • Periodicals; Chemical industry; Plastics industry; Shoe industry; Mining; Weeds; Oil spills; Conservation & restoration; Automobile industry;
    • Table of Contents: A step in the right direction; A mover and shaker in salt mines; Rescuing an architectural wonder; First line of defense against oil spills; The conservation of fine paintings; With many tanks from CBI; As good as the original;...
    • DuPont Prints

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    • The small print in the left corner of this display of photographic film in the DuPont Company exhibition at the New York Museum of Science and Industry, Rockefeller Center, was made by contact from an original negative on DuPont Superior Pan with f...

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