CONCRETE BY MACHINE. 61
Introduction--Conveying and Hoisting Devices--Unloading with Grab
Buckets--Inclines--Trestle and Car Plants--Cableways--Belt
Conveyors--Chutes--Methods of Charging Mixers--Charging by Gravity from
Overhead Bins; Charging with Wheelbarrows; Charging with Cars; Charging
by Shoveling; Charging with Derricks--Types of Mixers; Batch Mixers;
Chicago Improved Cube Tilting Mixer, Ransome Non-Tilting Mixer, Smith
Tilting Mixer; Continuous Mixers; Eureka Automatic Feed Mixer; Gravity
Mixers; Gilbreth Trough Mixer, Hains Gravity Mixer--Output of
Mixers--Mixer Efficiency.