This dredger raised about 30 tons per hour at the cost of 2d.
The dredger and the three shielded derricks hadn't gotten into action yet.
In building a second dredger this might of course be greatly reduced.
The conditions laid down for this dredger were that it should float in 18 in.
Jack Harvey, who had long ere this learned the necessity of quick obedience aboard the dredger, hastened to obey.
And he sketched rapidly the adventures that had befallen himself and Harvey since their captivity aboard the dredger.
Somebody put him just where he put us—aboard a dredger; and he must have struck a Tartar as bad as Haley.
He climbed over the dredger, which was lying alongside, and dropped from her into a small water-logged punt.
Figs. 3393 and 3394 show the arrangement of the pumps on a pair of compound engines for a dredger.
It consists of a huge paddle-wheel with buckets like those of a dredger, that fills a trough that runs down into the fields.