Word: metalized
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Dates: during 1940-1949
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...scratched away, is then eaten away by acid. Parts still covered with beeswax remain uneaten. When the acid bath is over, remaining wax is rubbed off and plate is ready for printing. In Drypoints, which look like etchings to the uninitiated, the artist scratches his design right on the metal, uses...
...same part is cast instead of forged, it weighs only 11 lb. before machining, because molten metal can be poured into nooks & crannies where no trip hammer can force it. So only 5 lb.-about one-third as much-of steel remain to be tooled away. Result: a 35% saving in skilled man-hours (according to Metallurgist Carl F. Joseph of General Motors), plus a corresponding 35% increase in the capacity of machine tools...
...world in the science of gun-making," says Brigadier General Holland W. Case, Commandant of the Watertown (Mass.) Arsenal, and he gives most of the credit to replacement since 1918 of forging by centrifugal steel casting.* Steel for cannon is poured into horizontal molds which whirl rapidly until the metal hardens. Impurities are forced to the hollow center of the barrel, where they are easily bored away, and blowholes and shrinkages are avoided...
...Bill Batt announced that U.S. manganese output for 1943 will be stepped up 1,400% over 1940 (to 600,000 tons a year) by developing high-cost mines in Minnesota, South Dakota and Nevada. The Government will absorb the excess price, sell the metal to fabricators at what imported concentrate would cost them...
...Isabella. . . . Everything went wrong. He discovered the Venezuelan pearl fisheries, which might have retrieved his reputation in Spain; but he did not realize what he had found, and a few months later a rival began to work them. In Panama he found gold, but could not get the metal out. With worm-riddled ships he tried to make the Spanish settlement on Haiti. He was forced to beach the boats on Jamaica, wait for months while rescuers, hoping he would die, refused to take...