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"Flight by machines heavier than air is unpractical and insignificant, if not utterly impossible."
Simon Newcomb, astronomer ; Said in 1902, less than two years before the first flight at Kitty Hawk
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| Number | Title | Issue Date |
| 4790278 | Centrifugal axle speed governor A reduction gear axle apparatus includes a differential gearing assembly positioned for driving a pair of coaxially arranged driving axle shafts. The apparatus includes a rotary input shaft disposed for coupling with a prime mover having a power modulatin... | 12/13/1988 |
| 4689452 | Centrifugal ball switch The invention is directed to a rotational speed sensing switch which provides a variable linear displacement of an output member in response to a varying speed rotational input. The switch includes a sensing means, which includes a rotatable rolling eleme... | 08/25/1987 |
| 4143551 | Indicating apparatus in centrifugal force type meter A speedometer of a centrifugal force type member employing weight members which are rotatable with a shaft for transmission to a thrust member. Displacement of the thrust member takes place and carries a pointer to move with respect to a scale.... | 03/13/1979 |
| 4123942 | Centrifugal governor A centrifugal governor whose body accommodates an input element adapted for rotation and a coaxially-arranged output element adapted for axial motion during rotation of the input element under the effect of the weights arranged between them. There also ar... | 11/07/1978 |
