Bøger af Bob Mann

This windpump design was adapted from a series of low-lift windmills developed in Ethiopia. A very successful windpump which when scientifically tested pumped nearly twice as much water as the original design. Contains constructional details and plans.

Using simple plans and photographs this booklet describes the construction and assembly of a metal-bending machine, whose main feature is the ability to form wheel rims from cold flat mild steel; this wheel can be used on farm carts and other basic equipment.