| 摘要 |
A gear box in which there is provided an input shaft, a coaxial relatively rotatable output shaft, a lay shaft carrying a gear meshing with one on the output shaft, meshing gears carried on the lay shaft and on the input shaft, synchronizers on the lay shaft and input shaft for selectively connecting the gears thereon, all forward gear speeds being synchronized, and the gears for each speed arranged sequentially from an input and to an output end of the gear box.
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