Chapter I Windmill Evolution I -- Ancient post-mill -- Tower mill -- Tower mill with regulating or wind-wheel -- Modern type of windmill -- Anemometer. Jumbo or horizontal windmill -- Wind-motor with vertical axle -- Pantanemone -- Chapter II A Model Working Windmill II -- Tower mill type -- Fixed sails without tail regulator -- Diameter across sails, two feet -- Full detailed drawings -- Chapter III A Small American Type Windmill 22 -- This type has fixed metal sails three feet in diameter, with tail regulator -- Develops about 1/30 H.P -- Full detailed drawings -- Chapter IV A Small Working Windmill 37 -- Automatically reversing sail type -- Diameter across sails, six feet -- Develops about 1/10 H.P -- Suitable for pumping water or for running a lathe -- Full detailed drawings 37 -- Chapter V A Practical Working Windmill 48 -- A simple and compact wind-power motor with adjustable sails and tail regulator -- Diameter across sails ten feet -- Will developfrom one-quarter to one-half horse-power, according to the velocity of the wind -- Suitable for pumping water, driving a dynamo or light farm machinery -- Full detailed drawings 48 -- Chapter VI Production of electricity by Wind-Power 65 -- Diagram of connections for a wind-driven electrical installation -- Driving belt arrangement for wind electrical plant -- Table of wind pressures and velocities. |