ut when it is desired to clear of the decks, returning the same on top of the tunnel two hinged gates, formed of metal, and each constituting a locate the dam, water is admitted into the sections, causing arch, as shown in Fig. 2, after the mason work Is finished. compartment similar to those into… … cipal feature of the invention is the system of plaie piles point of economy and convenience, which will doubtless be the piles are raised, and the dam floated and towed ahead until which surround the interior sides, and which may be forced evident to engineers generally. its rear gates embrace…
Patents · Improved · Iron · Valve · April · Scientific American · Address · Criminal entailment · Criminal classes · Resultant force · Illustrated catalogue · Cast Iron · Cross pin · Trade catalogs · Low water · Wooden bungs
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