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Treatise on iron ship building its history and progress as comprised in a series of experimental researches on the laws of strain including the of armour plates and shot at high velocities fairbairn sir william on amazoncom free shipping on qualifying offers treatise on iron ship building its history and progress as comprised in a series of experimental researches on the laws . Treatise on iron ship building its history and progress as comprised in a series of experimental researches on the laws of strain including the experimental results on the resisting powers of armour plates and shot at high velocities by fairbairn william sir 1789 1874. Treaties on iron ship building its history and progress as comprised in a series of experimental researches on the laws of strain sir william fairbairn amount appears applied armour plates armour plates backing beam becomes bottom breaking calculated carry cast iron centre charge compared compression consideration considered . Swedish iron corts iron an anchor 43 cwt 2 qrs 4 lb an anchor 44 cwt 3 qrs 0 lb on the ninth of may the arms of the two anchors were placed over the sides of two building slips which lie parallel to each other chocks and the shanks lay horizontally with the rings opposite each other the straps of two treble fall tackle blocks were then put through the rings of each anchor . The unions monitor was by far the more unusual of the two craft designed by swedish born engineer john ericsson the ship was around 173 feet long and featured a main deck that sat just 18