Technical World Magazine, Volume 7Technical World Company, 1907 |
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Page 56
... pounds per square inch and even more to break them , the breaking strength is usually not more than 200 pounds per square inch , which is so small that it becomes practically useless to depend on such strength for transverse stresses of ...
... pounds per square inch and even more to break them , the breaking strength is usually not more than 200 pounds per square inch , which is so small that it becomes practically useless to depend on such strength for transverse stresses of ...
Page 57
... pounds . At three cents per pound this is worth $ 14.70 . On the other hand , a cubic foot of concrete is worth perhaps 20 cents or , let us say , 1-75th of the cost of steel . But if the steel is 320 times as strong as the concrete we ...
... pounds . At three cents per pound this is worth $ 14.70 . On the other hand , a cubic foot of concrete is worth perhaps 20 cents or , let us say , 1-75th of the cost of steel . But if the steel is 320 times as strong as the concrete we ...
Page 259
... pounds . The former used only 530 pounds of anthra- cite on the run , the Elfreide 1,820 pounds of steam coal . W. H. Laurie , a Canadian engineer , gives the cost of one brake horse power for one year from gasoline at $ 78 ; from ...
... pounds . The former used only 530 pounds of anthra- cite on the run , the Elfreide 1,820 pounds of steam coal . W. H. Laurie , a Canadian engineer , gives the cost of one brake horse power for one year from gasoline at $ 78 ; from ...
Contents
MAY 1907 | 5 |
unrecorded that in it would be something of the best | 10 |
TABLE | 15 |
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