Word: signal
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Dates: during 1930-1939
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...American Airways' Los Angeles Operations Manager Major Daniel E. Ellis had an idea, took it to California Institute of Technology's young Research Physicist Anthony Easton. Last week, Researcher Easton finished his job: the design for an automatic distress signal. The apparatus is a two-tube, five-meter radio sending set, cased against fire in two inches of asbestos, housed in the plane's tail, spring-mounted against shocks. Its short antenna is a streamlined metal rod running from the fuselage along the leading edge of the plane's vertical stabilizer. Designer Easton chose...
...forward into its lock, starts the set sending its mechanical cry for help. Operated by storage batteries, the small transmitter repeats its call steadily for two or three days, is audible to radio direction finders in searching rescue planes. If a safe but bumpy landing should put the signal into operation, a red light on his instrument board warns a pilot to release the pendulum switch...
...switched recently to the Valencia front. Generalissimo Franco's most trusted henchmen now are Generals Miguel Aranda, Rafael Garcia Valino and José Varela, each in charge of one of the three prongs of the Valencia drive. Last week General Varela's Castilian Army Corps won a signal victory by capturing heavily-fortified Mora de Rubielos. The Rightist Armies continued in a swift advance down a steep grade, capturing Barracas, 3,000 feet above the sea, nearing Viber, 1,500 feet high, threatening Segorbe, 900 feet...
...hour after hour, as she crossed the Atlantic, the Hughes plane's KHBRC signal thundered down the ship's wake into Ground Radio Chief Charles Perrine's receivers at Flushing, L. I. In the plane, Radio Engineer Richard R. Stoddart adjusted the length of the trailing antenna, controlled at will the direction of the radio beam he was transmitting. He had achieved in the design of his transmitter an efficiency formerly impossible in airplane radio...
...miles to Hermosa Beach, Calif. During earlier tests from Wichita, Kans., it was heard in Honolulu, 4,226 miles away. Altering the length of the harmonically operated antenna gave his radio beam virtually any direction he chose. When the antenna trailed its rubber wind sock at full length, the signal was concentrated straight on the spot to which the plane's nose pointed, straight back in the opposite direction. This gave maximum performance down the two most desirable paths, forward to the next destination, back to the last point of departure. With the beam so concentrated, the 100-watt...