Periodicals; Chemical industry; Explosives; Dynamite;
Table of Contents: DuPont Gelatin Blasts Tunnels Under the Mississippi; Dynamite Extinguishes Mine Fire; The Blast Heard 'Round the World; Practical Explosives' Efficiency; DuPont Blasting Gelatin Not Low Freezing; Foresight and Hindsight; Lighting...
Periodicals; Chemical industry; Explosives; Dynamite;
Table of Contents: Conservation; Excavating Lake Washington Canal; Dependability; Smokeless Bananas; Ballistite Unhurt by Three Months' Immersion; Practical Explosives Efficiency; Two or More Electric Blasting Caps in a Bore Hole; Depth of Charges...
A few minutes after this photograph was snapped these 33 sturdy Vultee BT-13 Basic Trainers, piloted by U.S. Army fliers in foreground were roaring down the 4000 foot runway at 10 second intervals for delivery to Moffett Field, California basic...
Some of the 8,000 paratroopers dropping into the drop zone from air transports. Elevation of planes at about 800 feet to 1000 feet. A point of interest- there were no fatalities during the entire day.
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...
Correspondence regarding a shipment of 1000 kegs of powder on board the "Almina." A note at the end of the correspondence states that the grain of the powder in the last shipment was too small.
Correspondence regarding a recent shipment of 1000 kegs on board the "Matias Cousino." Post script discusses the sale of the "Helen McGaw" shipment and a net proceeds payment due.
Correspondence inquiring about the samples of powder sent via the "Wild Pigeon." The 1000 kegs of Hazard's powder, which arrived via the "Enterprise" was sold; however, they are having difficulty selling the canister powder.
Correspondence regarding a shipment of 1000 bags of saltpeter on board "Witch of the Wave," the chemists Bathgate and Company, a draft upon Brown Shipley and Company, and the "Columbia." No change has been noted in the market.
Correspondence regarding the "Herbert" shipment of 1000 bags of saltpeter, the "Cairo" shipment, the "Matanzas" shipment, and a draft upon Brown Shipley and Company. The saltpeter market remains well supplied. Includes memos of invoices, drafts,...
Band saws are often used for cutting curves of large radius in Lucite methyl methacrylate resin. Because of the length of band saw blades, they dissipate heat more rapidly than do circular saws. Accordingly, they operate at lower temperatures and...
Ceramic colors are tested by firing them on glassware in this small decorating lehr at DuPont's Electrochemicals Department plant at Perth Amboy, New Jersey. This is the discharge end of the lehr. The decorated ware is placed on a traveling belt...
Written on back: "The picture on the reverse side shows a few of the thousands of tank car heads we have made for the American Car & Foundry Co. The heads were made in two sizes. 1 - Flanged to 83" O.D. - Dished to 10'0" radius, flat circle...
Written on back: "Looking at the inside of one of the thousands of tank car heads we have pressed for the American Car & Foundry Co. on our 1000 ton press. They were made in two sizes: 1 - Flanged to 83" O.D. - Dished to 10'0" radius, flat circle...
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...
