Admiral Du Pont sending via the steamer Massachusetts, two hundred-pounder rifle bolts (shells) and one forty-pounder recovered at Ft. Pulaskis, fired by sailors from the Wabash. He is sending them to Lammot for safe keeping and so not to alarm his...
Laser assisted machining is one of several advanced techniques being explored at the General Electric Research and Development Center in Schenectady, N.Y. to improve productivity and lower costs in the metalworking industry. In their experiments,...
Blast furnaces - 19th Century; Stone furnaces; Open top furnaces; Hand fed furnaces; Restoration
Furnaces. Date from Civil War period and were closed down by Union Troops late in the war. Property was later owned by Republic Steel for the ore. Furnaces restored in the 1970's and are now part of the Tannehill Museum complex. One of the...
In this corner of the service laboratory at DuPont's Electrochemicals Department plat, small tiles are being fired in a high temperature electric furnace to test the ceramic colors.
Coke oven at the DuPont Companys Belle WV Works disgorges 11.5 tons of white hot coke into waiting plant freight car. Coke is fired at 1820 degrees Fahrenheit and later used on plant to help produce gases for synthesis of ammonia and hundreds of...
Coke oven at the DuPont Companys Belle WV Works disgorges 11.5 tons of white hot coke into waiting plant freight car. Coke is fired at 1820 degrees Fahrenheit and later used on plant to help produce gases for synthesis of ammonia and hundreds of...
Coke oven at the DuPont Companys Belle WV Works disgorges 11.5 tons of white hot coke into waiting plant freight car. Coke is fired at 1820 degrees Fahrenheit and later used on plant to help produce gases for synthesis of ammonia and hundreds of...
Ripple Rock in the Seymour Narrows being exploded. In 1958, it was the largest non atomic explosion intentionally fired anywhere. There was 370,000 tons of rock shattered.
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...
The switch is thrown on the DuPont Condenser Discharge Blasting Machine and all 900 holes are fired at once. This machine, which builds up enough voltage to set off as many as 1200 holes at one time, removed the need for power lines or portable...
Hendrick writes to confrim Milne's receipt of the wire. He also mentions that he uses a 9 1/4 inch water glass rather than the standard 6 inch glass. Hendrick wants to know if the boiler must be fired up by torch. He does not favor that...
Written on back: "This 1902 Sears-Roebuck Motor Buggy, originally purchased by Marcellus Diehl of York, Pa., has been owned and operated by his nephew, J. J. Ruth, 561 Smith St., York, Pa., for 30 years. The motor has only been reconditioned once,...
Caption: "Miners carefully dress the face of the coal seam so as to remove loose masses of foal after each explosive charge has been fired. The miner in this picture is shown making the face safe for drilling operations preliminary to another...
Text from back of image: "While a battery of 60-inch, 800,000,000 candlepower searchlights light up the night skies and play on the target, 3-inch anti-aircraft guns belch smoke and flame as they roar into action against a sleeve target, towed by a...
