The water hydrant pumps water from a lake, pond or reservoir, while the air hydrant pumps in high-pressure air from an air compressor.
High-pressure activity, like going down a water slide, is the source of many a painful and exposing wedgie, for both men and women.
High-Pressure High-temperature Creation: This method involves supplying a carbon source and compressing it under high pressure at the right temperature for diamond crystals to form.
And if you are in a high-pressure field where work is your life, your scope of other opportunities certainly narrows.
She has been reported as saying that dance is an avenue for her to express her deepest feelings and passion, while also learning to focus during high-pressure situations.
No growing medium is used, instead, the root systems hang down inside the container and a high-pressure pump sprays a fine mist of the nutrient solution onto the roots.
CPAP, or Continuous Positive Airway Pressure, machines connect via a tube to the mask and force high-pressure air into the wearer's airway.
Performed by a dermatologist, the aluminum oxide or magnesium oxide high-pressure steam technique peels the top-most layer of skin to reduce imperfections.
LTK: For a lot of people, in many cases especially for women, the car buying experience is high-pressure and intimidating.
If many attendees have never attended a lingerie party, they may think it's just about being risqué, or a high-pressure sales event.
inch absolute There were two high-pressure cylinders placed outside the frames and driving on a trailing wheel, and one low-pressure cylinder placed between the frames and driving on a wheel placed in front of the driving-wheel belonging to the highpressure cylinders.
The late night storm had blown Wednesday's hazy whiteness east to New Jersey and the Atlantic beyond, leaving in its place a high pressure system, a sky painted deep blue and patched with just enough puffy clouds for contrast.
carb cleaner and some high pressure air.
The matrix itself is not flammable, giving you a much more stable storage system than a high-pressure cylinder.
fugitive emissions from Fuels Emissions from the gas distribution network have been revised to take account of high pressure mains.
The change in eating habits has the report says been caused by the high pressure working culture in the United Kingdom.
high-pressure hoses on slabs to avoid damage to the pointing.
high-pressure petroleum pipeline.
high-pressure steam, the age of the locomotive would not have dawned.
high-pressure sales tactics.
high-pressure selling in a more general sense, however distasteful some of us may find that.
high-pressure laminate glued to the core layer.
A little closer to home, some antique dealers in the Winchester area are using very high-pressure tactics.
Don't using high-pressure hoses on slabs to avoid damage to the pointing.
The motion at the joints produced by the wave is resisted by hydraulic rams, which pumps high-pressure oil through hydraulic motors.
Burning is done in the fire room, the high pressure draft sucks pages into the flaming inferno faster than you can count.
A high-pressure jet of water hits these, causing the rotor to turn.
Composition and manufacture Partitions and doors are manufactured using an 18mm, moisture-resistant chipboard, faced both sides with high-pressure laminate.
The fire was tackled by dividing the area into two sectors and using hose reel jets and high pressure lances.
The water used in high pressure jet devices may be contaminated with sewage or oil lubricants.
metallurgy technology and the ability of engineers to construct boilers which could provide high pressure steam.
Mud or Slush Pumps: used to pump drilling mud or Slush Pumps: used to pump drilling mud under high pressure down the inside of the drill pipe.
A really high pressure will damage the optic nerve immediately.
It is then pushed at high pressure through filters in a process described as reverse osmosis.
Reverse osmosis a high pressure filtration system that uses selectively permeable membranes with extremely small pores to separate ions and particles.
Others factors create pressure gradients that cause water to try to flow from high pressure to low pressure.
rheumatoid nodule) - firm nodules arising under the skin in areas of high pressure.
The figure shows a crystal of the amino acid serine in a high pressure cell.
slick racing tires are often pumped up to high pressure too.
high-pressure steam from this combustion process expands out a rocket nozzle or drives a turbine that turns a propeller screw.
tyree slick racing tires are often pumped up to high pressure too.
westerlyving from the high-latitude sides of the same high-pressure belts toward the poles produces the prevailing westerlies.
The high pressure system is of later invention, having been first put to practical use by A.
The " Perkins " or " small bore high pressure " system (fig.
Water may also be heated by placing a coil of steam or high-pressure hot-water pipes in a water tank (fig.
In the intermediate belt between the two high-pressure areas the meteorological equator remains permanently north of the geographical equator, moving between it and about i rÃ‚° N.
Richard Trevithick, indeed, had in 1804 tried a high-pressure steam locomotive, with smooth wheels, on a plate-way near Merthyr Tydvil, but it was found more expensive than horses; John Blenkinsop in 1811 patented an engine with cogged wheel and rack-rail which was used, with commercial success, to convey coal from his Middleton colliery to Leeds; William Hedley in 1813 built two locomotives - Puffing Billy and Wylam Dilly - for hauling coal from Wylam Colliery, near Newcastle; and in the following year George Stephenson's first engine, the Blucher, drew a train of eight loaded wagons, weighing 30 tons, at a speed of 4 m.
The wheels are coupled, but the feature of the engine is that the couplingrods act merely to keep the high-pressure and low-pressure engines in phase with one another, very little demand being made upon them to transmit force except when one of the wheels begins to slip. In this arrangement the whole of the adhesive weight of the engine is used in the best possible manner, and the driving of the train is practically equally divided between two axles.
A double-acting Stirling engine of 50 horse-power, using air which was maintained by a pump at a fairly high pressure throughout the operations, was used for some years in the Dundee Foundry, where it is credited with having consumed only IÃ¯¿½7 lb of coal per hour per indicated horse-power.
If oils and fats are treated with water alone under high pressure (corresponding to a temperature of about 220Ã‚° C.), or in the presence of water with caustic alkalis or alkaline earths or basic metallic oxides (which bodies act as "catalysers") at lower pressures, they are converted in the first instance into free fatty acids and glycerin.
Nodule (rheumatoid nodule) - firm nodules arising under the skin in areas of high pressure.
The slick racing tires are often pumped up to high pressure too.
High-pressure steam from this combustion process expands out a rocket nozzle or drives a turbine that turns a propeller screw.
Air moving from the high-latitude sides of the same high-pressure belts toward the poles produces the prevailing westerlies.
A power washer (also known as pressure washer) is a tool that projects water at a high pressure.
The closer the high pressure system (warm air) and the low pressure system (cool air) are to each other the higher the winds will be.
A shaped ski with a deeper sidecut exerts high pressure over more ski length than a longer ski with minimal sidecut.
When the process involves two steps, fusing the layers once, and then a second time for additional durability, the process is known as High Pressure Laminate, or HPL.
If you agree to stay for the entire presentation and be subjected to a possible high pressure sales environment, you will receive free tickets if that is what they are offering.
Other important skill sets include organizational skills, motivational skills and the ability to remain calm under high pressure.
Using high pressure water that’s forced through the coffee container, single serve coffee makers are similar in function to espresso makers.
In the grand scheme of things, the earth creates diamonds by subjecting carbon to high pressure and extreme temperature, eventually causing the formation of diamond crystals.
Diamonds are formed under high pressure deep within the earth.
Using high pressure (over 60,000 atmospheres) and high temperature (over 2,000c of heat) the identical process that occurs under the earth's crust is duplicated in a matter of days.
Years later, it was revealed that Phillip faked his death to escape from his high pressure life.
Part of Omega's James Bond collection, the Seamaster 300 M Diver Chronograph is the perfect watch for the super spy in your life, or simply a man who finds himself in high pressure situations.
It also has a helium release valve, to keep pressure from building up when worn in high pressure enviroments.
It involves spraying the skin with a high-pressure stream of crystals made of aluminum oxide or salt.
In fact, if that's the high-pressure sales technique they're using, you might just be better off walking away.
In the Webb compound the driver opened communication from the high-pressure exhaust pipe to the blast-pipe, and at the same time opened a valve giving a supply of steam from the boiler direct to the lowpressure valve chest.
There are two high-pressure cylinders placed outside the frame, and two low-pressure placed inside the frames.
The extremely high pressure under which oil is met with in wells drilled in some parts of the Russian oil fields is a matter of common knowledge, and a fountain or spouting well resulting therefrom is one of the " sights" of the country.
An objectionable feature of the system of allowing the vapour to escape from the still to the condenser through a loaded valve, viz: the irregularity of the distillation, is thus removed, and the benefits of regular vaporization and condensation under high pressure are obtained.
The pressure of the air is a convenient unit to employ in practical work, where it is called an " atmosphere "; it is made the equivalent of a pressure of one kg/cm'; and one ton/inch 2, employed as the unit with high pressure as in artillery, may be taken as 150 atmospheres.
If double-bottomed defecators are used in sufficient number to allow an hour and a half to two hours for making each defecation, and if they are of a size which permits any one of them to be filled up by the cane-mill with juice in ten to twelve minutes, they will make as perfect a defecation as is obtainable by any known system; but their employment involves the expenditure of much high-pressure steam (as exhaust steam will not heat the juice quickly enough through the small surface of the hemispherical inner bottom), and also the use of filter presses for treating the scums. A great deal of skilled superintendence is also required, and first cost is comparatively large.
In some instances the result has been an additional and unnecessary expenditure of high-pressure steam, and in all the weld-known fact - of the highest importance in this connexion - appears to have been disregarded, that the shorter the time the juice is exposed to heat the less inversion will take place in it, and therefore the less will be the loss of sugar.
In the north tropical belt of high pressure south of the Azores the atmospheric pressure in January is o 87 in.
The use of small auxiliary blowing ventilators underground, for carrying air into workings away from the main circuits, which was largely advocated at one time, has lost its popularity, but a useful substitute has been found in the induced draught produced by jets of compressed air or high-pressure water blowing into ejectors.
Steam at high pressure exhausting into the atmosphere is still commonly used, but the great power required for raising heavy loads from deep pits at high speeds has brought the question of fuel economy into prominence, and more economical types of the two-cylinder tandem compound class with high initial steam pressure, superheating and condensing, have come in to some extent where the amount of work to be done is sufficient to justify their high initial cost.
In a later example at the Bargold pit of the Powell Duffryn Steam Coal Company a mixed arrangement is adopted with horizontal high-pressure and vertical low-pressure cylinders.
A similar explosion will frequently follow the breaking in the same way of a cylinder charged with hydrogen at a high pressure.
The catastrophe has been explained as a volcanic eruption, or an explosive outburst of gas and oil stored and accumulating at high pressure.
Personally of great physical and mental vigour, his work was done at high pressure and he had the faculty of inspiring his colleagues or his subordinates with his own enthusiasm for doing things.
Beyond the tropical high-pressure belt, the winds of the North Pacific are under the control of an area of low pressure, which, however, attains neither the size nor the intensity of the " Iceland " depression in the north Atlantic. The result is that north-westerly winds, which in winter are exceedingly dry and cold, blow over the western or Asiatic area; westerly winds prevail in the centre, and south-westerly and southerly winds off the American coast.
For high pressure.
The warmed air of summer produces an area of low pressure in the west-central United States, which interrupts the belt of high pressure that planetary conditions alone would form around the earth about latitude 30; hence there is a tendency of the summer winds to blow inward from the northern Pacific over the Cordilleras toward the continental centre, and from the trades of the torrid Atlantic up the Mississippi Valley; conversely in winter time, the cold air over the lands produces a large area of high pressure from which the winds tend to flow outward; thus repelling the westerly winds of the northern Pacific and greatly intensifying the outflow southward to the Gulf of Mexico and eastward to the Atlantic. As a result of these seasonal alternations of temperature and pressure there is something of a monsoon tendency developed in the winds of the Mississippi Valley, southerly infiowing winds prevailing in summer and northerly outfiowing winds in winter; but the general tendency to inflow and outflow is greatly modified by the relief of the lands, to which we next turn.
Here again, since the intensity of the pressure on A becomes greater as it descends owing to the increased head, the apparent increase of weight of the lift-ram as it rises is automatically balanced; water from the high-pressure system is admitted down the hollow ram B and does the work of lifting the live load.
- Hydraulic high-pressure water supplied in large towns.
The actual efficiency of these wheels when used with high falls is from 80 to 86%; when used in connexion with high-pressure water in London an efficiency 1 This engine was fully described in Engineering, vol.
The heating vessel could be maintained at a steady temperature by high-pressure steam.
Down these holes cement grout was injected under high pressure on the system of Mr Kinipple.
The city is supplied with water drawn from the Missouri river above the mouth of the Kansas or Kaw (which is used as a sewer by Kansas City, Kan.); the main pumping station and settling basins being at Quindaro, several miles up the river in Kansas; whence the water is carried beneath the Kansas, through a tunnel, to a high-pressure distributing station in the west bottoms. The waterworks (direct pressure system) were acquired by the city in 1895.
The wood is placed in closed chambers and steam admitted at high pressure (200 lb to the sq.
Remains of a high-pressure aqueduct, which supplied the town with water and was constructed with other public buildings (Corp. Inscr.
The temperature of the shell is much higher than that of a steam boiler, for in order to secure that the working air will take up a fair amount of heat, the upper limit to which its temperature is raised greatly exceeds that of even high-pressure steam.
A double-acting Stirling engine of 50 horse-power, using air which was maintained by a pump at a fairly high pressure throughout the operations, was used for some years in the Dundee Foundry, where it is credited with having consumed only Iï¿½7 lb of coal per hour per indicated horse-power.
fall, serves Oakland, San Jose and San Francisco, at high pressure yielding in San Francisco (220 m.
In 1883 Lucien Gaulard, following a line of thought opened by Jablochkov, proposed to employ high pressure alternating currents for electric distributions over wide areas by means of transformers.
Another condition which is probably due to toxins is high pressure within the arteries.
Douches to the spine are much employed for nervous debility, and good effects are also obtained in such cases from the so-called needle-bath, where small streams of water at high pressure are driven against the whole surface of the body.
the separation of organic substances by filtration under high pressure through a colloid membrane, gelatine supported in the pores of a porcelain filter being usually employed.
The effect of thus alternately forcing high-pressure steam among the sand, and of discharging high-pressure water contained in the sand into the well, is to break up any cohesion of the sand, and to allow all the finer particles in the neighbourhood of the orifice to rush out with the water through the wire gauze into the well.
On the introduction of the Waterworks Clauses Act 1847, an impetus was given to high-pressure supplies, and the same systems of distributing mains were frequently employed for the purpose; but with few exceptions the water continued to be supplied intermittently, and cisterns or tanks were necessary to store it for use during the periods of intermission.
Imagine a hilly town with a high-pressure water supply, the water issuing at numerous points, sometimes only in exceedingly small veins, from the pipes into the sub-soil.
(From Cheshire's Bees and Bee-keeping, Scientific and Practical.) the high-pressure system followed in modern bee-management, exhausts the period of her greatest fecundity in two years, so that queens are usually superseded after their second season has expired and egg-production gradually decreases.
If oils and fats are treated with water alone under high pressure (corresponding to a temperature of about 220° C.), or in the presence of water with caustic alkalis or alkaline earths or basic metallic oxides (which bodies act as "catalysers") at lower pressures, they are converted in the first instance into free fatty acids and glycerin.
The wave-induced motion of these joints is resisted by hydraulic rams, which pump high-pressure oil through hydraulic motors via smoothing accumulators.
The high pressure we saw last week tracked just to the south of the UK, leaving us in a northerly airflow.
argon gas under high pressure.
braided high pressure hose.
Corns and callus usually form in areas of high pressure or loading and require regular chiropody.
In the case of dual axial-flow compressor engines, the high-pressure compressor is usually the only one rotated by the starter.
In its later life the high-pressure cylinder was replaced by a Corliss valve cylinder with all four valves at the top of the cylinder.
In 1797 Richard began experimenting with high pressure steam engines by using models to test the practicality of using this inherently dangerous power source.
New processes were developed for the production of high-pressure gas using petroleum distillates.
In a matter of minutes, the high pressure boiler of the Gaggia heats water to the ideal temperature for rich, creamy espresso.
For decades, teams of three hardy fools had tried to knock each other senseless with high pressure fire hoses, while the spectators tried to escape the cross fire.
The prevailing winds in this region, which the sea traverses longitudinally, are westerly, but the sea itself causes the formation of bands of low barometric pressure during the winter season, within which cyclonic disturbances frequently develop, while in summer the region comes under the influence of the polar margin of the tropical high pressure belt.
There are several different systems of heating by steam - low pressure, high pressure and minus pressure.
High-pressure steam-heating, compared with the heating by low pressure, is little used.
The coiled pipe firebox of the high-pressure hot-water system previously described may be also classed with boilers.
The tropical belt of high pressure persists all the year tion of ture.
In the intermediate belt between the two high-pressure areas the meteorological equator remains permanently north of the geographical equator, moving between it and about i r° N.
On the polar side of the high-pressure area a west wind drift is under the control of the " roaring forties," and on reaching South Africa part of this is deflected and sent northwards along the west coast as the cold Benguella current which rejoins the equatorial.
In the central parts of the two high-pressure areas there is practically no surface circulation.
The transformer T has its secondary or high-pressure terminals connected to spark balls S1, which are also connected by a circuit consisting of a large glass plate condenser C, and the primary circuit of an air-core transformer called an oscillation transformer.
For the illumination of large stations by night electric arc lamps are frequently employed, but some authorities favour high-pressure incandescent gas-lighting.
The volume of the high-pressure cylinder may be varied within wide limits for the same low-pressure volume; the proportions adopted should, however, be such that there is an absence of excessive drop between them as the steam is transferred from one to the other.
It was of the same type as Mallet's engine, and was made by simply bushing one cylinder of an ordinary two-cylinder simple engine, the bushed cylinder being the high-pressure and the other cylinder the low-pressure cylinder.
The steam connexions were such that the two high-pressure cylinders were placed in parallel, both exhausting into the one low-pressure cylinder.
The first engines of this class were provided with high-pressure cylinders, i i in.
Generally steam from the boiler is admitted direct to the low-pressure cylinder through a reducing valve, and valves and devices are used to prevent the steam so admitted acting as a back pressure on the high-pressure cylinder.
The word usage examples above have been gathered from various sources to reflect current and historial usage. They do not represent the opinions of YourDictionary.com.