Importance

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Abstract

A power transfer device including a gear box which is rotatably driven from a suitable power source and provided with an output shaft for transmitting power to a desired location at a predetermined speed in relation to the input rotational speed of the gear box and a stationary shaft projecting from the gear box in which the stationary shaft and output shaft have bevel gears on the inner ends thereof in meshing engagement with bevel gears journaled on independent parallel shafts extending transversely of the gear box with each of the bevel gears on the parallel shafts including a spur gear integral therewith and in meshing engagement with each other with the spur gears having a predetermined ratio for determining the output shaft speed with the structural arrangement being such that the forces on the parallel shafts for the spur gears and bevel gears rigid therewith are neutralized. The specific arrangement of components is such that rotational movement of the gear box is necessary to produce output shaft movement whereas the output shaft cannot be rotated when the gear box is not being driven.

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First Claim