Harper's Magazine, Volume 182Harper & Brothers, 1941 - American literature |
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Page 635
... machine- tool builder for help . Such work cannot be done on old machine tools . And the result ? During the World War an airplane engine was overhauled after 50 hours of flight ; to - day this is done only every 600 hours . The Liberty ...
... machine- tool builder for help . Such work cannot be done on old machine tools . And the result ? During the World War an airplane engine was overhauled after 50 hours of flight ; to - day this is done only every 600 hours . The Liberty ...
Page 636
... machine - tool industry is a group of industries , each making a certain type of machine tool . The art of forming and shaping metal by cutting it may be divided into five fundamental methods : 1. Drilling , or cutting a hole - with ...
... machine - tool industry is a group of industries , each making a certain type of machine tool . The art of forming and shaping metal by cutting it may be divided into five fundamental methods : 1. Drilling , or cutting a hole - with ...
Page 638
... machine tools ( for ma- chine tools are built by machine tools ) , the training of thousands of men , over- time work , and the sub - contracting of parts , of sub - assemblies , and of complete machines . Of primary importance is the ...
... machine tools ( for ma- chine tools are built by machine tools ) , the training of thousands of men , over- time work , and the sub - contracting of parts , of sub - assemblies , and of complete machines . Of primary importance is the ...
Contents
Europes Revolt Against Civi | 14 |
AIR POWER AND FUTURE HIS | 67 |
QUEEN WHO WEIGHED A TON | 140 |
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