Quotables
"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 |
| 4083237 | Differential reluctance motion detector A displacement detector yielding an electrical output signal that is linearly proportional to the extent of input motion. The input motion to be monitored is applied to the shiftable armature of a differential reluctance transducer constituted by a pair o... | 04/11/1978 |
| 4058757 | Well pump-off controller A system for measuring current or load for shutting down a motor of a walking beam type pumping unit in the event that pump-off occurs. The system employs a peak picker which picks either minimum current or maximum load and an integrator coupled to the pe... | 11/15/1977 |
| 4044610 | Excavators Measurement devices are provided on the boom and stick of an excavator and are diposed to measure, by means of the gravitational force, the angle of the boom and the stick, respectively, relative to the horizontal plane. These measurement values are appli... | 08/30/1977 |
| 4016754 | Testing device for wheeled automotive vehicles An improved testing device for operating a wheeled automotive vehicle under power while it is standing still. This type of operation is desired in such endeavors as service diagnosis, measurement of exhaust emissions, and laboratory testing. In this devic... | 04/12/1977 |
| 3969933 | Spring joint for measuring device A joint for connecting a drive unit to a measuring arrangement connected to a wheel. The measuring arrangement comprising a wheel shaft rotatably supported by a measuring hub having deformable beams for measuring moments and forces acting on the wheel and... | 07/20/1976 |
| 3956929 | Apparatus for testing power transmission belts Testing apparatus including a fixed shaft and a floating shaft with means for moving it selectively generally parallel to the fixed shaft, two pulleys on each shaft paired and aligned between shafts and wherein one of the pulleys is the selectively variab... | 05/18/1976 |
