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  • Description: improvements
(12 results)



Display: 20

    • Pump House

    • Pumping stations; Sawmills;
    • "This building was originally a vertical saw mill constructed before 1834 (not Dawes saw mill). Additions and improvements at a cost of $500 were made in 1842 to the mill which burned in October, 1856. Sometime between 1856 and 1873 it was changed...
    • Keg Mill Area

    • Mills; Sites;
    • "The keg mill was begun in 1838 when $2000 was spent on its construction. A freshet of February, 1839 threw down the walls, but it was finally finished later in that year, and began to make wooden kegs for gunpowder. A mill seat was constructed...
    • Tracing movements

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    • A stroboscopic camera traces the movements of a man who stacks 50 pound bags. The amount of energy needed to this job is registered on the recording device. Such tests point the way to improvements in job techniques which will reduce fatigue and...
    • Train Concourse, Union Station

    • Railroad stations;
    • 225 South Canal Street; Architect: Graham, Anderson, Probst and White; Date built: 1925; On back: "This majestic new railroad terminal occupies the entire block bounded by JAckson Boulevard, Adams Streets, Canal and Clinton Streets. It furnishes...
    • Boeing 707 prototype

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    • The Boeing 707 prototype, Americas first jet transport, lifted from the Renton municipal airport runway adjacent to The Boeing Company plant where it was built as thousands of spectators watched, some from the roofs of nearby buildings. Ushering in...
    • DuPont Magazine [January-February 1973]

    • Periodicals; Chemical industry; Collectors; Paint industry; Textile industry; Plastics industry; Fashion industry;
    • Table of Contents: Catering to the collectors; Coatings applied by current; Shortwave, long reach; Clearing the way for improvements; An achievement in velvet; Rehearsing the descent to mars; A towering shower of light; The almost invisible mark of...
    • Employee Houses

    • Houses;
    • Written on back: "Employees houses on the 'Brandywine' property, built by R. W. Lukens in 1830. Under the heading 'Expenses of Improvements 1830' there appears among other items: 4 mo 10th to Richard Ayres bill for Lathing [?] and plastering...

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