 | 1844 - 490 pages
...are 10 feet in depth, and are formed by a series of flat bars of wroughtiron, 2^ inches wide, and f inch thick, crossing each other at an angle of 45°....gradual curve from the ends, amounting to 12 inches in the centre ; but that far from such being the case, they did not sink even when heavy weights passed... | |
 | 1844 - 544 pages
...45°. At a height of 5 feet 6 inches above the bottom edge, transverse bearers are placed, formed of J inch angle-iron, 6 inches deep, and set 2 feet apart,...gradual curve from the ends, amounting to 12 inches in the centre ; but that far from such being the case, they did not sink even when heavy weights passed... | |
 | Perry Fairfax Nursey - 1844 - 474 pages
...are 10 feet in depth, and are formed by a series of flat bars of wroughtiron, 2£ inches wide, and f inch thick, crossing each other at an angle of 45°....Perry of Dublin, the contractors, is given in detail. SCREW PROPELLING. 156 The author states that some deflection or sagging of the lattices was expected,... | |
 | William Newton, Charles Frederick Partington - 1844 - 536 pages
...deep, and set 2 feet apart, similar to the cross ties now used for the decks of iron steam vessels, and upon these the planking for the roadway is fastened....gradual curve from the ends, amounting to 12 inches in the centre, but that far from such being the case, they did not sink even when heavy weights passed... | |
 | 1844 - 476 pages
...2^ inches wide, and % inch thick, crossing each other at an angle of 45°. At a height of 5 feet С inches above the bottom edge, transverse bearers are...Perry of Dublin, the contractors, is given in detail. SCREW PROPELLING. The author states that some deflection or sagging of the lattices was expected, and... | |
 | William Newton - 1844 - 540 pages
...deep, and set 2 feet apart, similar to the cross ties now used for the decks of iron steam vessels, and upon these the planking for the roadway is fastened....camber or gradual curve from the ends, amounting to 1 2 inches in the centre, but that far from such being the case, they did not sink even when heavy... | |
 | 1844 - 950 pages
...of angle iron are fixed, similar to those now used for supporting the decks of iron steam vessels, and upon these the planking for the roadway is fastened....of construction, and of the raising and fixing the lattice beams, by Messrs. Perry, of Dublin, the contractors, was given in detail ; and the author stated... | |
 | William Laxton - 1844 - 506 pages
...those now used for supporting the decks of iron steam vessels, and upon those tbe planking for tbe roadway is fastened. The account of the mode of construction, and of the raising and fixing the lattice beams, by Messrs. Perry of Dublin the contractors, was given in detail, and the author stated... | |
 | 1844 - 424 pages
...similar to thoce now used for supporting the decks of iron steam vessels, and upon those the plankino- for the roadway is fastened. The account of the mode of construction, and of the ratsing and fixing the lattice beams, by Messrs. Perry, of Dublin, the contractors, was given in detail,... | |
 | Charles W. Vincent, James Mason - 1845 - 328 pages
...bottom edge, transverse bearers are placed, formed of ^ inch angle-iron, 6 inches deep, and set two feet apart, similar to the cross ties now used for...gradual curve from the ends, amounting to 12 inches in the centre ; but that far from such being the case, they did not sink even when heavy weights passed... | |
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... inch thick, crossing each other at an angle of 45°. At a height of 5 feet 6 inches above the bottom edge, transverse bearers are placed, formed of ^ inch angle-iron, 6 inches deep, and set 2 feet apart, similar to the cross ties now used for the... 