Pomp

“ They have even begun to call the place Pump Court, as if I were no better than a common every-day pump! What is worst, there is an upstart just the other side of the way,—it lets out water to be sure, but it has nothing to say about it; it has no handle, and the water comes out by just turning a screw; altogether it is a very plebeian thing; it can know nothing of the pleasure of feeling a box go rumbling down your inside, and fetching up water from the depths of the earth. ”

“ Your ears, tingle with the feel of it: your head rings with it.
You are breathing in through your nose—thin, unsatisfying gulps of air that cause your lungs to labor at their task; and you are exhaling through, your mouth, with difficulty, into the barrel of the powerful pump. No bubbles arise from the tiny hole where the used air is forced into the water. The pressure is too enormous for that. Only a thin, milky line marks its escape from the sphere.
In a ghostly way you see Stanley turning the pump handle. ”

“ When we suck or pump, it seems to us as if the liquid was drawn up, and so we use the word draw in regard to it. So, too, we talk about the suction or drawing power. But, as I have showed you, the liquid is pushed up instead of being drawn. All that the piston in a pump does is to make room. It does not draw the water into that room, but the pressure of the air forces it in. Whenever there is any room made, the air is always ready either to go in itself or to force something else in. ”

“ And now, as if it were a monument raised to commemorate those dismal times, there stands, at a point where all the crossing footpaths meet, a huge town-pump, near ten feet high, carved and painted, with a great ball upon its top, and an iron ladle chained to its nose. In the torrid summer-days, from early morning till late at night, the old pump-handle has but little rest; for, though in a season of drought the neighboring wells are apt to run low, the ancient pump, like a steadfast friend, never fails at such a time of need. ”

“ To often try the pump is no less necessary than to change the watch, for which purpose is given sincere repentance, such as sinks to the bottom of the heart, searches out every lust and evil desire, brings it to the surface, and casts it out, as does the pump-rod the stagnant bilge-water, which, if allowed to remain, would finally sink the vessel. ”

“ Once again our engines were causing trouble: the circulating pump had gone “phutt,” and it was necessary for all hands to turn out and pump the bilges clear. A lovely job, there in the darkness, with the ship trying to tie knots in herself! And bilge water is so pleasant! Pumping is a back-aching job at best, but when you’re performing nautical gymnastics throughout your spell it exercises every muscle in your body, and you marvel at the number of muscles you possess, when they’re all aching at once! ”

“ PUMP, [1] a machine which drives a liquid from one point to another, generally at different levels, the latter being usually the higher; an air-pump is an appliance for exhausting or removing the air or other gas from a vessel, whilst a compression pump compresses the air. The simplest forms of pumps employed for forcing liquids are “plunger pumps,” consisting essentially of a piston moving in a cylinder, provided with inlet and outlet pipes, together with certain valves. The disposition of these valves divides this type of pump into suction pumps and force pumps. ”

“ Suction Pumps. A pump is a device for lifting water. The pumps in common use work on the principle that water which is under the pressure of air will rise to fill a vacuum or a partial vacuum. The pump is composed of a combination of valves and a piston for forcing the air out of the pipe to allow the water from below to be forced into it. A valve catches the water as it starts to flow back. ”

“ My experience, my Lord, obliges me to allow, that when a pump is introduced, or added to one of Newcomen’s Engines where there is no condenser, a trifling latitude in the size, over and above the real maximum, is of little moment, and may be exercised without much detriment to the Engine; but I find the closer we adhere to the smallest that is sufficient, the less the power of the Engine is impeded by giving it motion. ”

“ The pipes are for to carry off the water," the creature said. “We have to pump almost from the first spadeful, and it's pump, pump, pump, every foot we go down, and, when we get down, every foot we go out.'
He struck a match and applied it to a stump of a candle. ”

“ During the bilge pumping I had taken time to overhaul the electric plant and put it in order, and now as the clouds thickened to darken the heavens I started the dynamo and by the light thus furnished we began to whip things into shape for the force-pump experiment. ”

“ There is nearly in front of our office, an old pump—a kind of town pump which every one mar use, and whose wet and bespattered base speaks plainer than sign boards could do, of water for man and horses; and a very excellent pump it is, too—never out of order, easily worked, and furnishing the purest, clearest, coolest water in the world. Many a thirsty school boy and omnibus driver has refreshed himself at that pump—the trackmen and draymen stop there and the old iron ladle that hangs by its side has been pressed to many a sweet and pretty lip. ”

“ A single acting pump is one in which the water enters the pump barrel during one piston or plunger stroke, and is expelled from the pump during the next stroke, hence the action of the suction and of the delivery is intermittent, although the pump is in continuous action. ”

“ It consists of a reservoir made of sheet iron, into which the air is forced, and, by an ingeniously contrived pump, is secured like a knapsack to a man’s back, and the air is conveyed by means of a tube to the mouth of a nose, and thus into the lungs at the ordinary pressure, while a small external valve allows of the escape of the air after it has been respired. ”

“ Every boy who has inflated a bicycle tire with a hand pump knows that the pump grows warm during the operation, [Pg 203] on account of the compression of the air within the cylinder. A part of the muscular force (energy) expended in working the pump reappears in the heat which warms both air and pump, and a similar process is forever going on in the sun, only in place of muscular force we must there substitute the tremendous attraction of gravitation, 28 times as great as upon the earth. ”

“ This engraving is plain and requires no description. Fig. 170 shows a diaphragm pump in which a sheet of rubber or its equivalent is used as a substitute for a piston in a cylinder.
Fig. 170.
Note.—When an ox or a horse plunges his mouth into a stream, he dilates his chest and the atmosphere forces the liquid up into his stomach precisely as up the pipe of a pump. It is indeed in imitation of these natural pumps that water is raised in artificial ones. The thorax is the pump; the muscular energy of the animal, the power that works it ”

“ A well-sweep is of course picturesque, with its long swinging pole, and you seem to feel the refreshment and purity of the water when you see it brought up from such a distance; and an old roofed well with bucket, such as this one still in use at Bishop Berkeley's Rhode Island home is ever a homelike and companionable object. But a pump is really an awkward-looking piece of mechanism, and hasn't a vestige of beauty in its lines ”

“ It is obvious that the pressure exerted will be in proportion to the difference between the size of the pump, a, and the cylinder, A, just as in the case of the bellows, it depended on the difference between the areas of the tube and of the top of the bellows. In the press the force of a pump is substituted for the pressure of a very high column of water, simply because it is more convenient. ”

“ The hot air is now drawn, out of the pipes A B C, and cold air drawn through them, by which they are cooled; while the hot air, from the fire, is thrown through the pipe g into the tubes a b c, and passing through the chimneys k l, there heat the bars and expand them,—both which operations concur in letting down the weight E, and thus, in forcing the water of the pump to whatever destination was previously assigned it. ”

“ The pumper, a grimy mortal, who regarded the monster oil company as the sole and omnipotent power of the universe, had marked this apparent anxiety of the driller, and inquired, with some trace of humor, if that gentleman was expecting to see grease gush up out of the road. ”

“ The compressing pump a is a peculiarly constructed suction and pressure pump, it draws out of the refrigerating pipes the vaporised carbonic acid by which they have been cooled and then subjects it to a pressure which helps to effect its reconversion into the liquid state. ”

“ Pump, with the meaning ‘ship’s pump’, is found in English in the fifteenth century, but in the sense of ‘instrument for raising water’ it is unknown to the Teutonic languages before the sixteenth century, though instruments of some sort had been used for that purpose in classical times. An understanding of the underlying mechanical principle, however, only developed, as we should expect, in the seventeenth century, when the words suction and hydraulic appeared in, for instance, Bacon’s writings. ”

“ A most interesting class of experiments can be made with an air pump, a piece of apparatus unfortunately beyond the pocket-money supply of the average boy. Nevertheless, if the following instructions are exactly followed and carefully carried out, a very excellent air pump can be made at a comparatively small cost. Some pretty, as well as interesting results will amply repay you for the trouble you take to make the pump. ”

“ The drunken husband, who has been in a gutter, goes to the pump to clean himself, and seizes a man's arm instead of a pump-handle. He works it as a pump-handle, and complains that ' the pump's dry;' upon which Young Wealthy empties a bottle of orange-flower water into his face. ”

“ This pump is very popular with the users of power driven pumps and is generally selected for high pressures and for hot or gritty water. Its simplicity of design and construction, together with the convenient arrangement of working parts, renders it desirable in isolated places where little attention is given to any kind of pumps. ”

“ After puzzling over it all night, we resumed our examination in the morning, but with no better success, and were all ready to despair, when suddenly the Captain and St. John both cried out at once, "Suppose we put the pump nearer the water, and see how that will work." Sure enough, it flashed upon us all in a moment that it was not a suction but a force pump—we accordingly lowered the frame on which it rested, and in this position found that it would drain the hole in six hours. ”

“ Next to light, the most important creature comfort is water and plenty of it. The most common causes of failure lie with the pump itself. If one of the deep well type gets out of adjustment, repairing it is a professional job and unless you are unusually expert, don't attempt it. Telephone for a plumber or handy man. But with the shallow well pump, you can, in a pinch, replace the leathers that make the valves exert the proper suction. ”

“ After the pump is in condition (6) , motion of the plunger is followed by a more or less regular discharge of water through the spout, and the quantity of water which gushes [192] forth depends upon the speed with which the piston is moved. A strong man giving quick strokes can produce a large flow; a child, on the other hand, is able to produce only a thin stream. Whoever pumps must exert sufficient force to lift the water from the surface of the well to the spout exit. For this reason the pump has received the name of lifting pump. ”

“ Article Thirdly, sets forth that Pumps are to be used for extracting the uncondensed Vapour, but as in all the foregoing instances, the least trace of their situation, dimensions, construction or action is not mentioned; every Engineer must discover the best he can, and apply it as his own ingenuity directs; the writer of the Specification having thought proper to reserve this secret for his sole use. ”

“ Most of you, no doubt, know that the plunger in a pump is made air-tight by one or a set of leather washers, which, owing to their pliable structure, can expand or contract so as to always fit air-tightly the pipe in the pump. ”

“ When a pump begins to show distress from over-pressure,—which will be indicated by the breaking out of joints, the rejection of stuffing and box-packing, and the bursting of branch-pipe,—the orifice between the check and the boiler should be examined ”

“ I see a very big gas-lamp in the centre, which I know, by a secret instinct, will not be lighted to-night. I see a pump, with a trivet underneath its spout whereon to stand the vessels that are brought to be filled with water. I see a man come to the pump, and he pumps very hard; but no water follows, and he strolls empty away.... I see one, two, three, four, five linen-drapers’ shops in front of me. I see a linen-draper’s shop next door to the right, and there are five more linen-drapers’ shops round the corner to the left. ”

“ Any pump in which the supply of mercury to the fall tube can be regulated nicely will pump well until the lowest available pressures are being attained; a good pump will then continue to hold the air bubbles, while a bad one will allow them to slip back [Footnote: For special methods of avoiding this difficulty see Mr. Ram's book.] ”