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One high pressure cylinder of 12 inches diameter and 5 feet stroke, making 20 strokes per minute, with steam of 60 to 70 lbs. pressure per square inch, lifts 6 buckets full of dredging per minute from a depth of 30 feet below the water, or lifts 10 buckets full of mud per minute from a depth of 18 feet below the water.
We have much improved the port since our arrival. The port, so-called, is purely artificial, and actually consists of a long mole with a gentle curve in it, which reaches out to seaward and protects the mouth of the canal. The tides are very strong up and down the coast, and constant dredging is carried out to keep 20 feet of water over the sill at the lock gates.
Paul now persuaded him to give up the dredging of wreckage and treasure hunting and devote the whole time to seeking curiosities. The old man was loth to give up his pet ideas of treasure-hunting and of making long, useless voyages in quest of phantoms.
This paper, lately read before the Institution of Mechanical Engineers, London, is a description of the construction and working of a dredger on M. Bazin's system, as used by the author for the past three years in dredging sand and other material in Lowestoft Harbor. The total length of the hull is 60 ft., with 20 ft. beam.
"At the same time I am chief engineer here, and I am committed to building the breakwater and dredging out the enclosed bay or harbor, all within a certain fixed appropriation. In order to keep my part of the bargain I must have men with me on whom I can depend to the fullest limit. Evarts isn't such a man and I won't have him on the work again." "He'll go on the pay-roll, anyway," snorted Mr.
One of the principal sources of expense in establishing bases at some points would be that of dredging out harbors sufficiently extensive, while harbors sufficiently extensive are provided already by nature in such localities as Samana.
The cost of repairs is found by experience to be no greater on the steam fire engines than on hand engines. The Excavator, fig. 76, is the invention of the late Mr. Otis, an application of the spoon dredging machine of the docks to railway purposes, with very important modifications.
"Let's try some of those cocoanut nuggets," said Townsend. "Didn't I know how to handle him?" said Pee-wee. "Now the island is ours, isn't it?" "I think before we have supper," said Townsend, "we'll write a line to the dredging people. What do you say?" "We'll write it on bark from the tree on account of our being wild and uncivilized," said Pee-wee.
Along the coast are numerous harbors, large and small, that are or, by dredging, could be made available for commercial purposes. Among these, on the north coast, from west to east, are Bahia Honda, Mariel, Havana, Matanzas, Nuevitas, Nipe Bay, and Baracoa. On the south, from east to west, are Guantanamo, Santiago, Manzanillo, Cienfuegos, and Batabano.
A few years ago only, a company was formed in England for the purpose of dredging for the treasure sunk in the galleons, but the scheme was abandoned on the discovery that much less amount of treasure than here described was really lost, the confederates having captured nearly all of that which had not been landed at Lagos.
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