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  • Description: weighed
(21 results)



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    • Dynamite ingredients

    • Manufacturing Process of Dynamite including historic methods
    • Dynamite ingredients are carefully weighed and mixed for the powder lines in the dope house at the Repauno, New Jersey plant of the DuPont Company. Operator is dumping ammonium nitrate into a bin mounted on scales.
    • Checking the weight

    • Nylon Manufacturing Process
    • Nylon yarn is checked for weight. Samples of uniform length are taken from bobbins that come from the spinning machines and weighed to check the denier of the yarn, This is one of the steps in the DuPont Company's plants at Seaford, Delaware;...
    • Inspecting cellophane

    • Cellophane Manufacturing Process
    • Every roll of cellophane cellulose film, which is slit to customers' requirements, is weighed and inspected. The illustration shows how the operation is conducted in the plants of E.I. du Pont Nemours & Company.
    • 1937 Bomber

    • Bombers; Airplanes;
    • Text from back of image: "Sometimes called the Super Fortress, this Titan of the air had a wing spread 45 feet greater than the Y1B-17. The XB-15 weighed 13 tons more, was 20 feet longer and three feet higher. Because of its extreme weight (35...
    • Drums of Formaldehyde

    • Formaldehyde-Perth Amboy, NJ & Toledo, OH Plants-Belle, WV
    • Drums of formaldehyde to be used for phenol and urea formaldehyde plants, disinfectants, fungicides, germicides, deodorants and other purposes are loaded and weighed in a single operation at the Perth Amboy NJ plant of DuPont's Electrochemicals...
    • Weighing ingredients

    • Manufacturing Process of Dynamite including historic methods
    • Dynamite ingredients are carefully weighed and mixed for the powder lines in the dope house at the Repauno, New Jersey plant of the DuPont Company. Operator is dumping ammonium nitrate into a bin mounted on scales.
    • Preparing cellophane

    • Cellophane Manufacturing Process
    • Finished rolls of cellophane being removed from slitting machine at the DuPont Company's new Tecumseh, Kansas cellophane plant. Cellophane is manufactured in wide mill rolls which are then slit to the sizes desired by customers. The conveyor in the...
    • The miro balance

    • Research Tools and Apparatus
    • The micro balance, shown here in the Chemical Department's Analytical Laboratory at DuPont's Experimental Station is one of the essential tools of modern chemistry, which demands a high degree of measuring accuracy. The human hair eight inches...
    • Roll Mill

    • Mills; Gunpowder;
    • "This was possibly the second rolling mill in America with iron wheels and was built in 1824. The rolling wheels were made of cast iron, and each weighed 14,300 pounds. These were made by Gouverneur Kemble's West Point Foundry at Cold Spring, New...
    • Roll Mill

    • Mills; Gunpowder;
    • "This was possibly the first rolling mill in America using cast-iron wheels, and was built in 1822. The rolling wheels were made of cast iron, and each weighed 14,300 pounds. These were made by Gouverneur Kemble's West Point Foundry at Cold Spring,...
    • Soda mill

    • Explosives Research
    • Black powder line starts at soda mill, where synthetic nitrate is unloaded, screened and weighed out. Powder man at DuPont Belin Works uses traditional scoop shaped like snow plow to move sodium nitrate to the screen equipment, while more cascades...
    • Building the pipeline

    • Blasting: Dynamite in Use
    • This scene shows part of the loading of large cartridges of DuPont 60% gelatin dynamite in the Susquehanna River near Marietta, Pennsylvania. The cartridges were five inches in diameter, 24 inches long and weighed 25 pounds each. The illustration...
    • Interior of Wawa Dairy Plant

    • Dairy products industry; Plants; Machinery;
    • Milk receiving room where milk is weighed and dropped into tank from which it is pumped to the sixth floor to storage tanks. Flow of milk then follows gravity

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