verb
definition
To mine using the technique of hydraulic mining.
adjective
definition
Pertaining to water.
definition
Related to, or operated by, hydraulics.
example
A hydraulic press is operated by the differential pressure of water on pistons of different dimensions.
Examples of hydraulic in a Sentence
With Fowler's hydraulic arrangement 2000 tons are raised 600 yds.
This second method forms the basis of the lifting gear in all hydraulic cranes.
A considerable number of men are engaged in the various states on alluvial fields, in hydraulic sluicing, and dredging is now adopted for the winning of gold in river deposits.
The mineral wealth of the department is considerable, including coal as well as manganese and bituminous schist; plaster, building stone and hydraulic lime are also produced.
But hydraulic presses have now been abandoned, for the juice is universally obtained by diffusion, and the small slicers have gone out of use, because the large amount of pulp they produced in proportion to slices is not suitable for the diffusion process, in which evenly cut slices are required, which present a much greater surface with far less resistance to the diffusion water.
In this form a large number, after being cooked or stoved in moist heat for about twenty-four hours, are piled between plates in an hydraulic press, and subjected to great pressure for a month or six weeks, during which time a slow fermentation takes place, and a considerable exudation of juice results from the severe pressure.
The Mad river is made to furnish good water-power by means of a hydraulic canal which takes its water through the city, and Dayton's manufactures are extensive and varied, the establishments of the National Cash Register Company employing in 1907 about 4000 wage-earners.
This simple device may be looked upon as the crown of the hydraulic system, since by its various modifications the installation of hydraulic power became possible in almost any situation.
They are worked by hydraulic machinery.
The Maryland building stone, of which there is an abundance of good quality, consists chiefly of granites, limestones, slate, marble and sandstones, the greater part of which is quarried in the east section of the Piedmont Plateau especially in Cecil county, though some limestones, including those from which hydraulic cement is manufactured, and some sandstones are obtained from the western part of the Piedmont Plateau and the east section of the Appalachian region; the value of stone quarried in the state in 1907 was $1,439,355, of which $1,183,753 was the value of granite, $142,825 that of limestone, $98,918 that of marble, and $13,859 that of sandstone.
The pieces are carefully heated with exclusion of air and then compressed into a uniform mass by intense hydraulic pressure; the softened amber being forced through holes in a metal plate.
In the Greek school at Alexandria, which flourished under the auspices of the Ptolemies, the first attempts were made at the construction of hydraulic machinery, and about 120 B.C. the fountain of compression, the siphon, and the forcing-pump were invented by Ctesibius and Hero.
In spite of its high cost, the drum weir furnishes a valuable hydraulic contrivance for situations where it is very important to be able to close a weir of moderate height against a strong current and to regulate with ease and precision the discharge past a weir.
In tropical countries drought is the commonest cause of a failure in the harvest, and where great droughts are not uncommon - as in parts of India and Australia - the hydraulic engineer comes to the rescue by devising systems of water-storage and irrigation.
On account of its refractory nature, it is employed in the manufacture of crucibles, furnace linings, &c. It is also used in making hydraulic cements.
They are constructed of granite, and no expense has been spared in equipping them with hydraulic cranes, warehouses, &c.
To be of service the lime should be what is known as "hydraulic," that is, not pure or "fat," but containing some argillaceous matter, and should be carefully slaked with water before being mixed with the aggregate.
Even though the best hydraulic lime be used it is wise to confine it to places where it is not exposed to the air, or to running water, and indeed for important structures the use of lime should be avoided.
The electricity is partly furnished by hydraulic works at Paderno, 24 m.
The whole internal harbour system is furnished with powerful hydraulic cranes and lines of railway running alongside the quays.
The crushed mass is then placed in hempen cloths and pressed in a screw or hydraulic press.
The earliest forms of cements of the Portland class were the hydraulic limes.
There is a considerable industry in the building of flat boats to convey salt to Liverpool, the river Weaver being navigable, and connected by a hydraulic lift, 1 m.
The extensive wharves are amply served by hydraulic machinery and railways.
Since then the hydraulic press has practically completely superseded all other appliances used for expression, and in consequence of this epoch-making invention, assisted as it was later on by the accumulator - invented by William George (later Lord) Armstrong in 1843 - the seed-crushing industry reached a perfection of mechanical detail which soon secured its supremacy for England.
For the preparation of edible oils and fats the meal is expressed in the cold, after having been packed into bags and placed in hydraulic presses under a pressure of three hundred atmospheres or even more.
The warm meal is then delivered through measuring boxes into closed pressbags ("scourtins" of the "Marseilles" press), or through measuring boxes, combined with an automatic moulding machine, into cloths open at two sides (Anglo-American press), so that the preliminarily pressed cakes can be put at once into the hydraulic press.
Numerous forms of hydraulic presses have been devised.
A hydraulic ram then forces the table carrying the cakes against a press-head, and the exuding oil flows down the sides into a tank below.
The packing of the press requires more manual labour than in the case of the Anglo-American press; moreover, the Marseilles press offers inconvenience in keeping the bags straight, and the pressure cannot be raised to the same height as in the more modern hydraulic presses.
Hence, in modern installations, the first expression of those seeds is carried out in so-called cage (clodding) presses, consisting of hydraulic presses provided with circular boxes or cages, into which the meal is filled.
The pressure was regulated by means of a weight loaded hydraulic accumulator, which could also store a certain amount f energy.
The wave-induced motion of these joints is resisted by hydraulic rams, which pump high-pressure oil through hydraulic motors via smoothing accumulators.
Engine All the boats come with a 4 cylinder Isuzu 55 engine with PRM hydraulic gearbox and twin alternators.
Barriers with a low hydraulic conductivity can be produced by adding bentonite to a locally available soil.
For installation on a truck, the truck engine is used to drive the chipper hydraulic system including the fan blower and loading crane.
The Caponord's ABS system uses BH DOT hydraulic hoses in flexible metal braid with PTFE inner tubing.
In addition, the hydraulic brake on the fork has been modified.
It was hard work, even for a hydraulic breaker on a JCB!
The door should be hung on three 100 mm steel butt hinges and be fitted with an overhead hydraulic self-closing device of approved specification.
The hydraulic clutch is a lovely piece of engineering, with the bleed nipple atop it.
Hydraulic couplings operate as clutches, but without the wear problems encountered with friction clutches.
This is caused by dirty hydraulic components or a fault in the sliding member (cone clutch ).
Void filling should obviously link with changes in the soil's hydraulic conductivity.
Assume all four engines to be running idle with their hydraulic couplings empty.
The bag of goods was delivered by hydraulic crane.
The Immobilizer Series III CANNOT BE BOLT CROPPED BY HAND or with the portable hydraulic croppers pictured.
Their solution was the fitting of one of their hydraulic dampers; model HB 28 to every trap door.
A 2316VM resonance free vibro hammer and a Dawson HPH2400 hydraulic drop hammer were mobilized to site.
When the first hydraulic excavators appeared they were relatively puny affairs with small buckets and a short reach.