Claim: Harry Schoell invented the master connecting rod requiring the need for a spider bearing in the uniflow steam engine.
Evidence: The Cyclone Waste Heat Engine (WHE) is a single-acting, Uniflow steam engine. Harry Schoell, inventor of the WHE, also invented what he called a 'spider bearing', which is a disk that can rotate around the crankpin, and has one bearing journal around its periphery for each of the six connecting rods.