1. Technical Field
The invention relates to speed transmission systems for automobiles, trucks, and other machines requiring the input shaft speeds to be different from the output shaft speeds, and in particular positive variable speed transmissions.
2. Background Art
The art useful for the understanding, searching and examination of the invention is that of mechanisms and machine elements in general and more particularly positive variable speed changing mechanisms as classified in Class 74 subclasses 217,230,230.21, 244, 681, and 689.
3. Disclosure of the Invention
The invention improves the conventional speed transmission systems by the introduction of unique moving bevelled mating plates between input and output shafts. The plates, named as "Ruff Plates", have unique surfaces that determines the rotational speed of one shaft to the other by the positioning of a plurality of continuous series of spaced-apart interconnected balls between the plates. The plates are thicker in the center and decrease to practically zero thickness at the peripheral edges. The mating surfaces of the plates comprises concentric series of crests and valleys increasing from the center to the peripheral edges in aligned sectors that allow the balls to pass between.