Patent attributes
A miter gear transmission includes a driving shaft, an idler cluster and a driven shaft. The idler cluster includes two cone-shaped gear sets, each having a proximate end with a gear having a largest number of teeth and a distal end with a gear having a smallest number of teeth. Gears with a decreasing number of teeth are located between the proximate and distal ends. The two gear sets are joined at their proximate ends. The idler cluster is suspended in bearings at a 45 degree angle between the driving and driven shafts with first and second spur gears slidably engaged to the shafts. Two actuator moves the spur gears along the shafts to engage the gear teeth of each of gears of the gear sets. By moving the spur gears to engage different gears, different gear ratios are achieved. A cable loop shifter moves the actuators along the shafts.
