 ... with an angle of about five degrees and a half, which, from repeated trials, are found equal to any pressure, having in no instance receded, and, when required, were easily removed. The vertical wedge is of wood, lined with a plate of wrought iron,...  The Emporium of Arts & Sciences - 364 ページ 編集 - 1812全文表示 - この書籍について
 | 1805 - 848 ページ
...of the horizontal wedges. The above experiments being communicated to the Navy Board, Mr. Seppings was directed to attend them, and explain the principle...plate of iron of three quarters of an inch thick, BO that iron at all times acts in contact with iron. The placing the sustaining shores, the form and... | |
 | 1805 - 534 ページ
...horizontal wedges in this, and the other docks that were afterwards fitted by him, are of cast-iron, with an angle of about five degrees and a half, which,...half an inch thick. On the bottom of the dock, in the of each block, is a plate of iron three quarters of an an inch thick, so that iron at all times acts... | |
 | Repertory of arts, manufactures and agriculture - 1805 - 528 ページ
...horizontal wedges. .(>» this, and the other docks that were afterwards fitted by him, are of cast-iron, with an angle of about five degrees and a half, which, from repeated trials, are found equaljto any pressure, having in no instance receded, and vrhen required were easily removed. The vertical... | |
 | 1807 - 1012 ページ
...horizontal wedges in this, and the other docks that were afterwards fitted by him, are of cast-iron, with an angle of about five degrees and a half, which,...dock, in the wake of each block, is a plate of iron three quarters of an inch thick, so that iron at all times acts in contact with iron. The placing the... | |
 | Edmund Burke - 1807 - 1004 ページ
...horizontal wedges' in this, and the other dorks that •were afterwards fitted by him, arc of cast-iron, with an angle of about five degrees and a half, which,...repeated trials, are found equal to any pressure, having iu no instance receded, and -wlic-n required were easily removed. The vertical wedge is of wood, lined... | |
 | Edmund Burke - 1807 - 1014 ページ
...horizontal wedges in this, and the other docks that лгеге afterwards fitted by him, are of cast-iron, with an angle of about five degrees and a half, which, from repeated trials, are found equal to «ny pressure, having in no instance receded, aud when required were easily removed. The vertical wtdge... | |
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