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.
Reversing Gear Mechanism: How It Works, Parts, Diagram and Stephenson Link Motion Explained
Learn how Stephenson link motion combines two eccentric inputs. Explore a simplified endpoint interpolation and its limits with an interactive calculator.
Eccentric Mangle Wheel: Guided Pinion and Variable-Speed Reversal
Explore an eccentric mangle wheel with a guided pinion. Calculate driving-pinion pitch diameter and speed; the guide drawing is qualitative.
Reversing Gear for a Single Engine: Eccentric–Slider Geometry
Calculate the position and rod angle of an eccentric-driven slider with an offset guide. See how this geometric element differs from a complete reversing valve...
Eccentric-rod Disengaging Device Explained: How It Works, Parts, Diagram & Uses in Steam Valve Gear
Explore Brown 186 manual eccentric-rod release with a moving hand lever, an illustrative lifting cam and a calculator for gab lift and valve-pin clearance.
Bremme Valve Gear Mechanism Explained: Parts, How It Works, Formula, and Marine Steam Engine Uses
Explore Bremme’s suspension-link valve gear. Adjust the support and compare valve travel, opening beyond lap and speed through one shaft revolution.