Types of Cranes and Capacities The Overhead Crane Overhead cranes operate from girders spanning one high craneway to another. See Fig. 17. The capacities of these cranes are plainly marked. Some cranes have two hoists, one calledanbsp;...
|Title||:||Ship Erection (a Manual of Instruction for Pre-employment and Supplementary Training) ...|
|Author||:||Pennsylvania. Dept. of Public Instruction|