Word: knocks
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Equally "special" are low-boiling-point fuels which vaporize easily, facilitate quick starting in winter time (but which do not produce more power), and the knock-reducing fuels. Function of the latter is to eliminate the metallic clanks which old motors make when straining on hills. The puzzling question of what constitutes a knock-reducing fuel was perhaps solved by an announcement last week telling of the work of the co-operative steering committee...
...years ago the Society of Automotive Engineers and the American Petroleum Institute joined forces and appointed this committee to find a uniform scale by which the knock-reducing quality of fuels could be expressed. At that time they explained that knocking is not directly caused by valves or carbon but by irregular and too rapid explosion of gasoline injected into cylinders overheated by any cause?insulating carbon deposits, lime coatings in the cooling system, faulty oiling...
...discover the exact influence of these materials on gasoline and to find a means of giving numerical values to specially treated fuels was the task of the committee. According to the announcement, the committee proceeded by selecting two chemicals, one knock-preventing (iso-octane), one knock-producing (normal heptane). Numerical rating was arrived at by noting the number of parts of non- knocking isooctane which must be added 1 to ten parts of heptane to duplicate exactly the fuel being rated. Thus, a fuel with a rating of 5 would be inordinately bad; fuel with a rating of 50, superlatively...
...there?" cried a solemn, monkish voice last week, responding to a thunderous knock on the great door of the crypt beneath Vienna's Church of the Capuchins. "Who is there...
While Francis Scott McBride, chief Anti-Saloon League lobbyist, was declaring that Mr. Drury's testimony was "a knock-out blow to the Wets' pet scheme," Wets talked of inviting Premier Ferguson to Washington to appear before the House Judiciary Committee to refute the statements of his Canadian opponent. Premier Ferguson promptly scotched this proposal as "undesirable," but offered to send all data necessary to prove the success of Ontario's liquor system...