Cupola Furnace; A Practical Treatise on the Construction and Management of Foundry Cupolas .. (1899)

Tools for Homesteaders

Latrines

Design Calculations for Overshot Waterwheels...by Rudy Behren

Handcart - David Tresemer USA 1985

Design Calculations for No-head, Low-head Waterwheels...by Ru

BONUS Wind Turbine - How a Wind Turbine Works - The Theory & Design of Modern Wind Turbines

Low-Head Hydro Power

Vertical Axis Sail Windmill Plans - 21-493

The Complete Battery Book

Analog and Hybrid Computing

Cool You Home With This Simple Device While You Also Meet You

Analog Computing

Maine-Built Windmill - Everet Russell 2000

Windpower in Eastern Crete - 21-499

Wind Power From the Past...by Larry Elliott

4662842

Human Power Lathe - N.van de Ven - NL 1977

Sail Windmill for Serbia - Freja DK 1978.