Patent ID: 8226508

Claim:
A transmission for a self-propelled machine, the transmission comprising: an output shaft comprising a gear fixedly secured to the output shaft to rotate with the output shaft such that the gear rotates the output shaft as the gear is rotated; an input shaft having an axis and extending substantially transverse to the output shaft, the input shaft comprising a gear and being rotatable about the axis of the input shaft and the gear of the input shaft configured to drivingly engage the gear of the output shaft to rotate the output shaft when the input shaft is rotated; a variable pitch pulley disposed axially on the input shaft and configured to rotate about the axis of the input shaft, the variable pitch pulley being configured to change pitch diameter to regulate the speed at which the input shaft is rotated about the axis of the input shaft; and the input shaft being at least partially rotatable about an axis of the output shaft to vary the pitch of the variable pitch pulley to regulate the speed at which the input shaft drives the output shaft.