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Updated: June 7, 2025
Suppose there's a mutiny? Suppose they try to rob us of the treasure on our way home? We must have men we can rely on, and men who know how to pump a Winchester. I can get you both. And Bannerman will furnish me with anything from a pair of leggins to a quick firing gun, and on Clark Street they'll quote me a special rate on ship stores, hydraulic pumps, divers' helmets "
It may be that this girl had a fact in her somewhere, but I don't believe you could have sluiced it out with a hydraulic; nor got it with the earlier forms of blasting, even; it was a case for dynamite. Why, she was a perfect ass; and yet the king and his knights had listened to her as if she had been a leaf out of the gospel. It kind of sizes up the whole party.
Bramah's inventive genius displayed itself alike in small things as in great in a tap wherewith to draw a glass of beer, and in a hydraulic machine capable of tearing up a tree by the roots. His powers of contrivance seemed inexhaustible, and were exercised on the most various subjects.
Faraday having applied to me to furnish him, for one of his lectures at the Royal Institution, with some striking example of the Power of Machinery in overcoming the resistance to penetration in the case of some such material as cold malleable iron, it occurred to me to apply the tranquil but vast power of a hydraulic press to punch out a large hole in a thick cake of malleable iron.
There were no hydraulic presses in those days for the baling of jute, and the work had to be done by hand screws worked from the upper floor, on the same principle as the capstan of a sailing vessel, by gangs of coolies in old, tumble-down and dilapidated godowns.
By the application of a jet of water, forced by an hydraulic pump through a tube down the outside of the spile while it is being screwed into the sand, a puddling of the same is kept up, which relieves the strain upon the screw-flanges, and saves fourteen-fifteenths of the time and labor usually expended by the old method of inserting the screw spile.
It is a common error to imagine that the Romans were ignorant of the simple hydraulic law that water will find its own level, and to suppose that their aqueducts were built in consequence of that ignorance. In point of fact they knew the law as well as we do. Their earlier aqueducts were conduits almost wholly underground; their later were all on arches.
Then again, if the subsoil is compact, it is necessary to dig deep trenches in order to give room to the long roots of these trees, and often indeed these trenches must also be drained, as is done for olive trees. The conclusion evidently is that it is better to confine ourselves to hydraulic methods of promoting the health fulness of a locality, the immediate effects of which are less uncertain.
These mining engineers issue licenses to work the mines when satisfied that the débris will be kept out of the rivers. There are in the state many hundred thousand acres of gold-bearing gravel lands yet untouched, that could be worked by hydraulic mining. In drift-mining the rich gravel is covered by hard lava rock thrown up by some old volcanic outburst.
With its mandibles, it scrapes together a small quantity of dust and saturates it with saliva until the whole becomes a regular hydraulic mortar which soon sets and is no longer susceptible to water. The Mason-bees have shown us a similar exploitation of the beaten paths and of the road-mender's macadam.
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