 Those conditions were, that the blocks, each weighing 27 tons, should be lifted, traversed out. and placed in position 25 feet in advance of the point of support afforded by the finished work. The main framing is made throughout of wrought iron, and travels...  Appleby's Illustrated Handbook of Machinery ... - Seite 91von Charles James Appleby - 1877Vollansicht - Über dieses Buch
 | Edward Henry Knight - 1884 - 1096 Seiten
...Fig. 1445. fulfills all the condition« indicated when tender« were invited for the work. 14 Tlu'-f conditions were, that the blocks, each weighing 27...throughout of wrought iron, and travels on a pair of mil-. 22' gage, which were carried on blocking pieces up to the front face of the work, ae shown in... | |
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