Did You Know...
...that the Slinky toy was the result of a failed attempt by engineer Richard James to produce an antivibration device for ship instruments? His goal was to develop a spring that would instantaneously counterbalance the wave motion that rocks a ship at sea. Instead, he developed the Slinky.
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| Number | Title | Issue Date |
| 4330738 | Method and apparatus for controlling the frequency of vibration imparted to the ground by a compacting machine Apparatus for controlling the frequency of vibrations imparted by the vibrating element of a compacting machine to the ground which comprises a vibration pick-up responsive to the amplitude of vibrations of a mass composed of the vibrating element and the... | 05/18/1982 |
| 4264851 | System for controlling the direction and speed of a steerable locomotive A direction and speed control system for a steerable locomotive having independent speed controls for two driving rollers, in which, where CD and CG are speed control signals for the two rollers, is a steering angle of a stee... | 04/28/1981 |
| 4216838 | Compacting apparatus for road surfacing material Apparatus for compacting or consolidating a strip of road surfacing material essentially comprises a self-propelled compacting machine and a guide vehicle. The guide vehicle has a steerable wheel and a set of drive wheels. The compacting machine is guided... | 08/12/1980 |
| 3998287 | Hydrostatic transmission vehicles A hydrostatic transmission vehicle which is direction controlled by a speed controlled running assembly known as a motor-director running assembly and which has at least one further speed controlled driving running assembly. The motor-director running ass... | 12/21/1976 |
| 3964834 | Apparatus for compacting or consolidating a freshly surface strip Apparatus for effecting passes of a self-propelled compacting machine following a spreading machine after the latter has laid a strip of surfacing composition. A guide vehicle is hitched to the spreading machine and is towed therewith, and has a guide mem... | 06/22/1976 |
