 | Naval art and science - 1874 - 1098 pages
...seams at least double-riveted with rivets having an allowance of not more than fifty per cent, over tho single shear, and provided that the boilers have been...inspection during the whole period of construction, then six may be used as the factor of safety. But the boilers must be tested by hydraulic pressure to twice... | |
 | Clement Mackrow - 1879 - 552 pages
...cover, and all the seams at least double-riveted with rivets having an allowance of not more than 50 per cent, over the single shear, and provided that...inspection during the whole period of construction, then 6 may be used as the factor of safety; but the boilers must be tested by hydraulic pressure to twice... | |
 | William Miller Barr - 1880 - 494 pages
...cover, and all the seams at least double-riveted with rivets having an allowance of not more than fifty per cent over the single shear, and provided that...inspection during the whole period of construction, then six may be used as the factor of safety. But the boilers must be tested by hydraulic pressure to twice... | |
 | Marine engines - 1884 - 270 pages
...least double riveted, with rivets having an allowance of not more than 75 per cent, over single sheer, and provided that the boilers have been open to inspection during the whole period of con. struction, then 5 may be used as the factor of safety. The tensile strength of the iron is to... | |
 | Richard Sennett - Marine engines - 1885 - 750 pages
...least five-eighths the thickness of the plates they cover, and all the seams at least double riveted with rivets having an allowance of not more than 75...the iron is to be taken as equal to 47,000 Ibs. per sq. inch with the grain, and 40,000 Ibs. across the grain. But when the above conditions are not complied... | |
 | Charles Augustus Smith - Steam-boilers - 1885 - 226 pages
...the seams at least double rivetted with rivets having an allowance of not more than 75 per cent, over single shear, and provided that the boilers have been...strength of the iron is to be taken as equal to 47,000 pounds per square inch with the grain, and 40,000 pounds across the grain. The boilers must be tested... | |
 | Albert Edward Seaton - Marine engineering - 1886 - 514 pages
...rivet holes drilled in place, and all the seams fitted with double butt straps, each of at least jj the thickness of the plates they cover, and all the...strength of the iron is to be taken as equal to 47,000 lbs. per square inch with the grain, and 40,000 lbs. across the grain. The boilers must be tested by... | |
 | Bindon Blood Stoney - Girders - 1886 - 854 pages
...least five-eighths the thickness of the plates they cover, and all the seams at least double riveted with rivets having an allowance of not more than 75...with the grain, and 40,000 Ibs. across the grain. But when the above conditions are not complied with, the additions in the following scale must be added... | |
 | Joshua Rose - Steam-boiler inspection - 1888 - 312 pages
...least five-eighths the thickness of the plates they cover, and all the seams at least double riveted with rivets having an allowance of not more than 75...with the grain, and 40,000 Ibs. across the grain. But when the above conditions are not complied with, the additions in the following scale must be added... | |
 | Canada, Harris Harding Bligh - Administrative law - 1889 - 1152 pages
...than 75 per cent, over the single shear, and provided that the boilers have been open to inspection, then 5 may be used as the factor of safety. The tensile strength of the material is to be taken as eqiial to 47,000 Ibs. per square inch with the grain, and 40,000 Ibs. across... | |
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When cylindrical boilers are made of the best material with all the rivet holes drilled in place and all the seams fitted with double butt straps each of at least five-eighths the thickness of the plates they cover, and all the seams at least double riveted... 
