Professional Memoirs, Corps of Engineers, United States Army and Engineer Department at Large, Volumen4Engineer School., 1912 |
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Página 7
... position regarding trade up and down the coast and into the interior of California itself . It is the nearest point to the great mineral belt comprising the States of Utah , Nevada , New Mexico , Arizona , and Colorado , not to mention ...
... position regarding trade up and down the coast and into the interior of California itself . It is the nearest point to the great mineral belt comprising the States of Utah , Nevada , New Mexico , Arizona , and Colorado , not to mention ...
Página 48
... position above high water . In Fig . 1 the trusses are the ordinary Howe trusses with the addition of vertical end posts at the ends adjacent to the opening . These form part of the tower on the two fixed trusses , and are the carriers ...
... position above high water . In Fig . 1 the trusses are the ordinary Howe trusses with the addition of vertical end posts at the ends adjacent to the opening . These form part of the tower on the two fixed trusses , and are the carriers ...
Página 49
... position shown in dotted lines on Fig . 2. The suspenders M H.W. L.W. 205'10 Entire Lift Span raised XX Lower Deck Down Lower Deck Up Cross Section Of Lift Span Fig . 2 . Vertical Lift Bridge of the Oregon Railroad and Navigation ...
... position shown in dotted lines on Fig . 2. The suspenders M H.W. L.W. 205'10 Entire Lift Span raised XX Lower Deck Down Lower Deck Up Cross Section Of Lift Span Fig . 2 . Vertical Lift Bridge of the Oregon Railroad and Navigation ...
Página 50
... position shown in dotted lines in Fig . 2 in one and one - half minutes . The cost of a swing span or bascule at times seems excessive where only a small highway bridge is to be constructed and where the demands of navigation require an ...
... position shown in dotted lines in Fig . 2 in one and one - half minutes . The cost of a swing span or bascule at times seems excessive where only a small highway bridge is to be constructed and where the demands of navigation require an ...
Página 72
... position on the outside of the quay . A careful inspection of the work of unloading a big steamer by these silent hands , working in an apparently almost human manner , would indicate that this method exemplifies the perfection in crane ...
... position on the outside of the quay . A careful inspection of the work of unloading a big steamer by these silent hands , working in an apparently almost human manner , would indicate that this method exemplifies the perfection in crane ...
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