I want to be able to drive something with my steam engine, but first of all I need to have some kind of torque multiplier system that will slow it down and increase the torque. Based on what I have found in my shorts rack, I am going to add what I have shown here. The dark blue part will begin life as a peice of 3/4" x 2" aluminum bar, and the pulley will be made from a peice of 1" x 3.5" aluminum flat bar. The bolt head which is visible holding the pulley in place is a 1/4" dia. x 1" lg. shoulder bolt. The belt will be ??? (not sure yet). The system as shown will give me an approximate 3.5:1 reduction in speed, plus will increase the torque at the small output side of the new sheave by the same ratio.