Explosives; Factories; Government contracts; Gunpowder;
Booklet describing the construction of DuPont's Old Hickory, Tennessee munitions plant, which was built on a government contract during World War I. Item 11 of 23 from DuPont Plant Histories scrapbook.
Chemical industry; Defense contracts; Explosives; Factories; Gunpowder; Paint industry; Plastics industry
Excerpt from The Indicator, a newsletter published by the New York and New Jersey sections of the American Chemical Society. Explores the history of DuPont's New Jersey facilities and their contributions to the defense industry. Includes a two-page...
Ingredients for black powder are relatively inert when unmixed. Years ago, sodium nitrate replaced saltpeter as the key ingredient in black blasting powder. This improved powder was developed by Lammot, grandson of the founder of the DuPont...
Typed caption on photo: "Deep into Ripple Rock, drillers drove a 'Coyote' tunnel which was packed with 2,750,000 pounds of high explosives supplied by DuPont of Canada (1956) Limited. Ripple Rock was located just below the surface in Seymour...
Typed caption on photo: "Water-tight cans of explosives being pushed into the cage at the collar of a 570-foot vertical mine shaft on Maud Island, about 120 miles northwest of Vancouver, B.C. The explosive was used to blow the top off Ripple Rock,...
Typed caption: "A freighter approaches from the north through Seymour Narrows between Vancouver Island and Maud Island, some 120 miles north of Vancouver. Here two underwater peaks, known as Ripple Rock, long a peril to navigation, were blasted...
Typed caption: "Long a menace to navigation, Ripple Rock used to lie in Seymour Narrows, above, 120 miles northwest of Vancouver, British Columbia. If the peaks of the rock had been visible they would have appeared directly above the freighter's...
Typed caption: "This is inside the tunnel under Seymour Narrows which extended about 2,400 feet from Maud Island to a point under Ripple Rock, a massive underwater mountain. This age-old peril to navigation was destroyed on April 5, 1958, by the...
Typed caption on photo: "F.D. Bickel (left) of the DuPont Company and Jack Buchanan, Northern Construction Company superintendent, study the loading chart of a coyote tunnel in the north pinnacle of Ripple Rock. Shortly thereafter, in the greatest...
Typed caption on photo: "Deep in Ripple Rock, technical experts of the DuPont Company crimp a water-proof sealer on the end of a detonating cord. The cord detonating at the amazing rate of 20,000 feet per second provided virtually instantaneous...
Typed caption on photo: "This is the scene in Seymour Narrows, 120 miles northwest of Vancouver, British Columbia, as the largest non-atomic blast in history sheared the tops off the top of the twin underwater peaks of Ripple Rock, one of the...