Recent Blogs
Single Eccentric Reversing Gear: How It Works, Diagram, Parts, Formula and Uses Explained
Single Eccentric Reversing Gear explained — how Stephenson-era engineers reversed steam locomotives with one eccentric, slip-link, and gab hook. Diagrams, math, examples.
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.
Hackworth Valve Gear Mechanism: How It Works, Parts, Diagram, and Cut-Off Formula Explained
Hackworth valve gear explained — how the slotted link drives the valve in steam locomotives, with formulas, a worked cut-off example, and tradeoffs vs Stephenson.