... intervals as will admit of either line being used for full or empty trucks, or in fact partially for both purposes if desired. Another great advantage which has been demonstrated by practice is, that the cranes can be so readily concentrated at any... Appleby's Illustrated Handbook of Machinery ... - Seite 87von Charles James Appleby - 1877Vollansicht - Über dieses Buch
| United States Centennial Commission - 1884 - 1106 Seiten
...brought into position by the men in stowing and slinging, with no further wear and tear of road than 4hnt due to the paying load. As it was decided to adopt...circumstances which so frequently arise •where great dispatch is essential. Or two cranes can be brought together for any exceptionally heavy lift. The... | |
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