Word: rotor
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Dates: during 1930-1939
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...rotor functions like a spinning baseball or tennis ball. As ball or rotor turns it piles up the wind on one side. A suction develops on the other side. So the ball or rotor moves forcibly in the direction of the suction...
...years inventors have been trying to make the wind generate electricity, but with no commercial success. Three years ago Julius D. Madaras, Detroit Hungarian, persuaded six power concerns that he could succeed by adapting a Magnus rotor such as carried Anton Flettner's sailing vessel Baden-Baden from Hamburg to Manhattan (TIME, May 24, 1926) and lifted Harold Elstner Talbott Jr.'s hydroplane from Long Island waters in 1930. The utilitarians gave Designer Madaras $104,000 to build a demonstration rotor at West Burlington, N. J. Last week he showed them that it works...
...utilitarians intend to build a train of such rotor-surmounted trucks and run them around a circular track half a mile in diameter. Thus, on windy days, power companies can draw current from the wind, can let their steam plants idle...
...autogiro can climb steeply, land nearly straight down, fly more slowly than a man can run. But it cannot fly fast. The ungainly ''windmill" rotor which accounts for the 'giro's virtues has kept its cruising speed well under 100 m.p.h. Last week New York University announced that its Daniel Guggenheim School of Aeronautics would undertake 'giro speed as a special problem, with funds provided by Harold F. Pitcairn, president of Autogiro Co. of America, U. S. developer of the Cierva invention. Under direction of famed Professor Alexander Klemin, the rotor problem will be tackled...
...Hatlestad model has a conventional propeller, but in place of wings there are freely spinning horizontal rotors 14 in. long and 2 in. in diameter. The rotor is composed of two semicircular vanes on an axis-in cross section shaped like the letter S. As the plane moves forward, air pressure causes the rotor to revolve backward. That action, combined with the forward movement, produces low pressure on top of the rotor, increased pressure (lift) on the bottom. If the motor should quit the rotor continues to spin in descent, the lift force stretching the plane's course into...