 | Industrial arts - 1850 - 560 pages
...to any required distance, and suddenly releasing it, it could be made to strike a horizontal bloir upon the bar, the magnitude of which could be adjusted...fracture by dead pressure), no bar was able to stand 4000 of such blows in succession ; but all the bars (when sound) resisted the effects of 4000 blows,... | |
 | George Drysdale Dempsey - Bridges, Iron and steel - 1850 - 72 pages
...subjected, by means of this apparatus, to successions of blows, numbering in most cases as many as 4000, the magnitude of the blow in each set of experiments...fracture by dead pressure,) no bar was able to stand 4000 of such blows in succession; but all the bars (when sound) resisted the effects of 4000 blows,... | |
 | Perry Fairfax Nursey - Industrial arts - 1850 - 548 pages
...4,000. The magnitude of the blow in each set of experiments being made greater or smaller, as oc cusion required. The general result obtained was, that when...enough to bend the bars through one-half of their ultímate deflection (that is to say, the deflection which corresponds to their fracture by dead pressure),... | |
 | Industrial arts - 1851 - 474 pages
...inches square, was placed on supports about 14 feet asunder. A heavy ball was suspended by a wire 18 feet long, from the roof, so as to touch the centre...blow was powerful enough to bend the bars through one half of their ultimate deflection (that is to say, the deflection which corresponds to their fracture... | |
 | Industrial arts - 1851 - 470 pages
...inches square, was placed on supports about I4 feet asunder. A heavy ball was suspended by a wire I8 feet long, from the roof, so as to touch the centre...blow was powerful enough to bend the bars through one half of their ultimate deflection (that is to say, the deflection which corresponds to their fracture... | |
 | United States. Patent Office - Patents - 1852 - 534 pages
...than the above) were subjected to successions of blows, numbering, in most cases, as many as 4,100; the magnitude of the blow, in each set of experiments,...deflection which corresponds to their fracture by dead pressure,)«no bar was able to stand 4,000 of such blows in succession; but all the bars (when sound)... | |
 | United States. Patent Office - Patents - 1852 - 854 pages
...than the above) were subjected to successions of blows, numbering, in most cases, as many as 4,100; the magnitude of the blow, in each set of experiments,...through one-half of their ultimate deflection, (that is tn say, the deflection which corresponds to their fracture by dead pressure,) no bar was able to stand... | |
 | George Rowdon Burnell - Bridges - 1853 - 294 pages
...subjected, by means of this apparatus, to successions of blows, numbering in most cases as many as 4000; the magnitude of the blow in each set of experiments...fracture by dead pressure,) no bar was able to stand 4000 of such blows in succession ; but all the bars (when sound) resisted the effects of 4000 blows,... | |
 | Sir William Fairbairn - Iron - 1861 - 278 pages
...on Kailway Structures. It was found that with cast-iron bars subjected to long continued impacts, " when the blow was powerful enough to bend the bars...fracture by dead pressure), no bar was able to stand 4000 of such blows in succession. But all the bars (when sound) resisted the effects of 4000 blows,... | |
 | William Turner Coggeshall - Gas manufacture and works - 1861 - 752 pages
...on Railway Structures. It was found that with cast-iron bars subjected to long continued impacts, " when the blow was powerful enough to bend the bars...fracture by dead pressure), no bar was able to stand 4000 of such blows in succession. But all the bars (when sound) resisted the effects of 4000 blows,... | |
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The magnitude of the blow in each set of experiments being made greater or smaller, as occasion required. The general result obtained was, that when the blow was powerful enough to bend the bars through one-half of their ultimate deflection (that is to... 
