Recent Blogs
Vertical Water Tube Boiler
How a Vertical Water Tube Boiler raises steam fast in tight footprints — components, sizing formula, worked example, and trade-offs against firetube designs.
Smith Rotary Engine
How the Smith rotary steam engine works — eccentric rotor, abutment vane, port timing, and worked indicated-power example for heritage demonstration steaming.
Ruth's Rotary Engine
Ruth's Rotary Engine explained — abutment geometry, vane sealing, indicated power formula, and a worked steaming example from a heritage textile mill drive.
Rotary Engine (form 5)
Rotary Engine Form 5 explained — how the abutment-and-piston layout converts steam pressure to shaft torque, with worked numbers for heritage mill drives.
Rotary Engine (form 1)
Rotary Engine form 1 explained — how a single-vane steam rotary engine produces torque, where it fits in heritage power plant, and how to size...
Horizontal Centrifugal Governor
How a horizontal centrifugal governor regulates steam engine speed — formula, worked example for a heritage mill engine, and design tradeoffs.
Cylindrical Double Flue Boiler
Cylindrical double flue boiler explained — how twin internal flues raise steam evaporation, where Lancashire patterns shine, and how to size firing rate for heritage...
Cahall Vertical Water Tube Boiler
How the Cahall Vertical Water Tube Boiler works in steam power. Tube layout, evaporation calc, worked example, failure modes, and trade-offs vs Babcock & Wilcox.
Worthington Boiler
Worthington Boiler explained — how this horizontal return-tube boiler generates steam, key design rules, evaporation calculations, and heritage steam-plant uses.
Wilkinson's Steam Turbine
How Wilkinson's Steam Turbine works — reaction-jet rotor design, RPM range, sizing formula, worked example, and named heritage applications.
Wheeler Vertical Tube Boiler
Wheeler Vertical Tube Boiler explained — how the vertical firetubes generate steam, sizing maths, heritage marine examples and design tradeoffs for engineers.
Vibrating Piston Engine
How a Vibrating Piston Engine works — design rules, indicated power formula, worked example for a heritage launch, and trade-offs against oscillating cylinder engines.
Submerged Head Vertical Boiler
Submerged head vertical boiler explained — crown sheet geometry, heat transfer, sizing math, and a worked sawmill example for heritage steam engineers.
Stocker Rotary Engine
Stocker Rotary Engine explained — how the rotating-piston steam engine works, its kinematics, real heritage applications, and a worked sizing example.
Sterling Boiler
Stirling boiler explained — how the bent-tube water-tube design works, why power stations adopted it, sizing formulas, and real heritage and industrial applications.
Steam Engine Guides (form 4)
Steam engine guides (form 4) keep the crosshead aligned and absorb piston-rod side thrust. Learn the geometry, loading limits, and heritage engineering use.
Simple Unhooking Device
Learn how a simple unhooking device releases steam-engine valve gear at the right cut-off point, with formulas, worked examples, and heritage applications.
Serves Boiler Tube
Serves boiler tubes use internal helical ribs to boost heat transfer in fire-tube boilers. Sizing, formulas, and a worked example for heritage steam plant.
Schaeffer and Budenberg Injector
Schaeffer and Budenberg injector explained — how the steam cones lift, mix and force feedwater into a live boiler against its own pressure, with sizing...
Rotary Engine (form 4)
Rotary Engine form 4 explained — eccentric piston geometry, steam admission, indicated power formula, and a worked heritage marine example with real numbers.
Plain Cylindrical Boilers
Plain Cylindrical Boilers explained — how the shell, flue, and grate generate steam for heritage mills, breweries, and early factories. Sizing formulas inside.
National Automatic Injector
How a National Automatic Injector feeds water into a steam boiler against its own pressure — working principles, sizing formula, and a heritage traction-engine worked...
Moyes Water Tube Boiler
Understand how the Moyes water tube boiler generates steam in sugar mills and marine plants — design, formulas, worked example, and engineering tradeoffs.
Little Giant Locomotive Injector
Little Giant locomotive injector explained — how the Gresham & Craven feedwater injector works, sizing formula, worked example for heritage steam locos.
Knickerbocker Four Piston Rotary Engine
How the Knickerbocker four piston rotary steam engine works — geometry, indicated horsepower formula, worked example, and troubleshooting for heritage restorers.