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Updated: June 14, 2025
Quickly the three spacemen clamped their space helmets closed and adjusted the oxygen nozzles. Then, after testing their suit intercoms, they closed the inner-portal air lock, reduced the air pressure, and opened the thick pluglike outer portal.
"Douse her out, boys!" cried Bert, as he signalled for the water. A moment later two big streams spurted from the brass nozzles, and fell with a hiss on the leaping flames. "I'll take a look around and see if it's breaking out anywhere else," said Herbert. "One stream is almost enough there."
The idea is to keep the velocity of the steam in each stage as nearly constant as possible. The nozzles in the diaphragms and the intermediates do not, except in the lowest stage, take up the entire circumference, but are proportioned to the progressive expansion of steam as it descends toward the condenser. Clearance
The valves of the feed pump in marine engines are generally of the spindle kind, and are most conveniently arranged in a chest, which may be attached in any accessible position to the side of the hot well. There are two nozzles upon this chest, of which the lower one leads to the pump, and the upper one to the boiler.
This is because the steam volume increases progressively from the admission to the exhaust and the entire expansion is carried out in the separate sets of nozzles, very much as if it were one continuous nozzle; but with this difference, not all of the energy is taken out of the steam in any one set of nozzles.
Presently everything was clear; and then, without delay, the nurses brought forward a strange-looking device. It was of silver, shaped like a flattened egg, and a trifle smaller than that laboring, human blood-pump; To it was attached a pair of long, flexible, silver pipes, which led to Billie knew not where. And near one extremity the egg was provided with eight curious nozzles.
Then suddenly there was a cry, and the tall fighting men were flung back on me, almost crushing me, and again the lanterns swung and jingled, and the cold nozzles of great horses pushed into the press of us. They had turned and charged us. "'You fools! came the voice of Wilson, cleaving our panic with a splendid cold anger. 'Don't you see? the horses have no riders! "It was true.
When opposite a row of buckets, it will allow one to see the amount of clearance between the buckets and the intermediates, and between the buckets and the nozzles. When drilled opposite the intermediates, the clearance is shown top and bottom between the buckets and intermediates.
In a short time several buckets had long pieces of rope attached to them, by which they could be dropped down into the cistern, when the cover was removed. They could then be pulled up full, and the fluid emptied into the tank. The hose was unreeled, and with the nozzles in charge of Tom and Charlie, Bert hurried into the house.
Can you boys get them out?" and she pointed to the door of an apartment just back of where the two lads, with the hose nozzles, stood. "Sure we will!" replied Vincent. "Come on, Bert. That will be easier than saving horses." The flames seemed to be eating back, in spite of the efforts of the young firemen, and the aid given by the bucket brigade, which last was not much.
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