A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Crawler mounted, revolving power shovels, lifting cranes, dragline and clamshell excavators (export classifications)
Nomenclature, definitions, and requirements; standard covers shovel dipper capacities ranging from 3/8 to 2 1/2 cu yd, and crane sizes from 2 1/2 to 50 tons; uniform methods of taking dimensions and determining working ranges, power, line speeds, line pulls, crane sizes, and lifting capacities; method of labeling. (5¢)
Crawler mounted, revolving power shovels, lifting cranes, dragline and clamshell excavators (export classifications)
Nomenclature, definitions, and requirements; standard covers shovel dipper capacities ranging from 3/8 to 2 1/2 cu yd, and crane sizes from 2 1/2 to 50 tons; uniform methods of taking dimensions and determining working ranges, power, line speeds, line pulls, crane sizes, and lifting capacities; method of labeling. (5¢)
Crawler mounted, revolving power shovels, lifting cranes, dragline and clamshell excavators (export classifications)
U S Bur Standards -- Commercial Standard
1941
12 pages
Standard
English
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