Word: vacuum
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Dates: during 1930-1939
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...wind, like a feed-tray for birds. The circular core, hung on a duraluminum mast planted on, not in, the ground, is lashed together by guy-wires on a system of triangular tensions, like an airplane. A square house piles up air pressure on the windward side, creates a vacuum on the leeward side, thus sucking the heat out. The streamlined house slides the wind off, fills the leeward vacuum space, saves heat, requires less resistance to wind stress. A cone on the housetop lets in air which settles evenly down in a slow draft...
...kilowatt turbogenerator. 5) A 500-kilowatt radio tube, ten feet high, of steel & iron, no glass, made by England's Metropolitan-Vickers Electrical Co. Five times as powerful as the tubes used by biggest U. S. radio stations, it is not permanently sealed. The vacuum is maintained by oil pumps...
Cathode Ray Tube Analyzer. To understand the manufacturing possibilities of some materials, x-ray spectra are useful. Analysts get the spectra by striking the material with cathode rays until x-rays flash off. If the material can be put in a vacuum tube the process is comparatively easy. Otherwise the cathode rays must be shot out of the vacuum tube through a very thin metal window into the open air, and then upon material to be examined. This is exceedingly difficult to accomplish. Air tends to dissipate and absorb cathode rays before they can strike x-rays from anything...
While the meetings consisted largely of private discussions, oilmen wondered if Socony-Vacuum's Arnott was not bidding for leadership of the world's petroleum industry. It was he who called the conference, he who held a daily meeting with newspapermen...
...told, but it was easy to imagine long-haired President Arnott dominating the conversation. As a speaker he is romantic, dramatic, often poetic. His accent is unusually pure, probably because his father was English and Oxonian. Since he entered the oil business in 1896 (he went with Vacuum in 1903) he has shown a flair for salesmanship. Most famed and profitable of his ideas was that each type of machine should have a special type of lubricant. Vacuum's chart showing what kind should be used was the result of this, first shown to an admiring and tremendous sales...