Did You Know...
...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.
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| Number | Title | Issue Date |
| 4275606 | Pushbutton tuner A pushbutton tuner wherein a core slide for causing cores to move in-and-out of coils, respectively, has a rack formed at one end thereof and a fine tuning operating mechanism mounted on an auxiliary mechanism baseplate has a pinion meshable with the rack... | 06/30/1981 |
| 4144511 | Push-button mechanisms and equipment including them A push-button mechanism for tuning a radio receiver includes push-buttons that are actuable to rotate a turrent tuner to different extents for station selection. The side of each push-button contacts one end of an individual lever to pivot it through a pr... | 03/13/1979 |
| 4141254 | Pushbutton reselection tuner with pivoting lever A pushbutton preselection tuner in which pushbuttons cooperate in different locations with a pivotable lever coupled to a slide which in turn is coupled to the tuning means. Continuous tuning is provided by driving the slide itself. This tuner has a compa... | 02/27/1979 |
| 3943779 | Pre-set positioning device A preset positioning device which is suitable for push-button tuners, and in particular for car radios. The device has a frame with a locator and a reference both mounted on the frame and both movable relative to the frame through respective ranges of cor... | 03/16/1976 |
