Word: heats
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Dates: during 1930-1939
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Since 1920 steelmaking has had a big swing to the open-hearth process. These furnaces, lined with dolomite (lime and magnesia oxide), are primed with plate scrap and limestone, then charged with pig iron, scrap and ore, and heated. Gas expelled from the limestone stirs the mixture, helps form the slag. A furnaceman spoons out samples, cools them to test quality, then adjusts the heat to get just the quality he wants. After about twelve hours the furnace is tapped, the steel ladled off. The Bessemer process is three times faster than the open-hearth, and correspondingly cheaper; but since...
...recent months rumors have reached steelmakers that Pittsburgh's Jones & Laughlin Steel Corp., whose stockholders have fared thinly in recent years, had developed a photoelectric indicator ("robot eye") which, by judging the color and brilliance of a Bessemer heat better than human eyes can, made it possible to turn out steel with Bessemer rapidity but of a uniform quality comparable to that of the open-hearth product. The J. & L. researchers guarded their secret vigilantly, declared darkly not long ago that two other companies had tried to swipe...
...ranking boats in each heat will compete in the championship race next Wednesday. Monday the second house crews will race in two heats at 5 and 5:30 o'clock...
...second heat Referee Bert Halnes called the boats back for a second start after the first 50 seconds, when Eliot and Leverett by crossing blades. The blame for the collision was placed on the Charles which was well chopped up by a rising wind...
...reputation, the Eliot crew swept the course in 7:15.3 with the Rabbit eight following close behind in 7:22.3. Lowell had a time of 7:25.8 and the Adams eight placed in the rear in 7:48. The river was so rough by the second heat that the times were not indicative of the abilities of the crews...