Recent Blogs
Variable Expansion Gear Explained: How Stephenson, Walschaerts and Meyer Cutoff Mechanisms Work
Variable expansion gear lets a steam engine vary cutoff on the fly to match load. Learn how the mechanism works, sizing math, and worked example...
Valve Gear (form) Mechanism Explained: How It Works, Parts, Diagram, and Cut-Off Calculator
Valve gear controls steam admission and exhaust timing in reciprocating engines. Learn cut-off, lead, lap, and how Stephenson and Walschaerts gears work in service.
Reversing Gear for Single Engine: Mechanism, Stephenson Link Motion, Cut-off Calculator
Reversing gear for a single steam engine — how Stephenson, Walschaerts and slip-eccentric link gears reverse rotation, set cut-off and serve locomotives and launches.
Locomotive Link-motion Valve Gear Explained: How It Works, Parts, Diagram & Cutoff Formula
Locomotive Link-motion Valve Gear explained — how Stephenson and Walschaerts reversing link gears work, with worked cutoff math used in steam locomotive overhauls.
Walschaerts Valve Gear Mechanism Explained: How It Works, Parts, Diagram & Uses
Walschaerts Valve Gear explained — how the linkage controls steam admission, cutoff, and reverse on locomotives, with formulas, tolerances, and worked examples.