| 摘要 |
A "GEAR TRANSMISSION ASSEMBLY" or more precisely a speed change gear box with two output shafts being one main and the other secondary for driving machine tools and mechanical equipment in general, with different alternative arrangements of the speed system in a total of either seventeen different speeds, fourteen different speeds, thirteen different speeds or ten different speeds in the main output shaft consisting of a set of five slidable gears and a set of gears twice double (four gears) also slidable being one of the double sets comprised of two single gears assembled together totalling only fifteen gears and three shafts to obtain seventeen different speeds in said main output shaft. A second output shaft or secondary output shaft makes possible the output of speeds in a ratio equal to or different from the speeds of the main output shaft.
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