Recent Blogs
Stephenson Valve Gear Explained: How It Works, Parts, Cutoff Formula and Uses in Steam Locomotives
Stephenson valve gear explained — how the link motion controls steam admission, cutoff, and reverse on locomotives, with worked sizing example and tradeoffs.
Allen Valve Lift or Toe Mechanism: How the Straight-Link Valve Gear Works with Diagram
Allen valve lift or toe explained — how the linkage adjusts steam admission, why locomotive engineers use it, and how to set it correctly on...