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The advantages of water injection during compression are as follows: Low temperature of air during compression. Increased volume of air per stroke, due to filling of clearance spaces with water and to a cold air cylinder. Low temperature of air immediately after compression, thus condensing moisture in the air receiver. Low temperature of cylinder and valves, thus maintaining packing, etc.
As he swung around the corner on which the bank was located the same bank in which Ned Newton worked one of the valves on the motor-cycle began to leak. Tom dismounted to adjust it, and had completed the work, being about to ride on, when down the street came Andy Foger and Sam Snedecker. They started at the sight of our hero.
In this engine the steel cylinders were secured to the crank case by flanges, and radiating ribs were formed around the barrel to assist the air-cooling. Inlet and exhaust valves were actuated by push-rods and rockers actuated from the second motion shaft mounted above the crank case; this shaft also drove the high-tension magneto with which the engine was fitted.
I see only a coincidence of occurrences such as happens with all the phenomena of life, and I see that however much and however carefully I observe the hands of the watch, and the valves and wheels of the engine, and the oak, I shall not discover the cause of the bells ringing, the engine moving, or of the winds of spring.
One, he saw held a weapon pointing, seemed prepared to fire. What did they think he meant to do? In a moment he understood their tactics, and his resolution was taken. His momentary lethargy was past. He opened two more valves to his left, swung round, end on to this hostile machine, closed his valves, and shot straight at it, stem and wind-screen shielding him from the shot.
Occasionally the anther valves do not open freely enough to permit the escape of pollen, which may then be taken out with a narrow-bladed penknife, or better with a little instrument made of a flattened pin fixed in a wooden handle. The pollinated blooms should immediately be covered with the netting, which should remain until they fade.
''E's doing a bit of a job down in the cellar; some of the valves gone a bit wrong. But the missus is comin' down to lend me a hand presently. 'Ere she is now. The landlady who at this moment entered through the door at the back of the bar was a large woman with a highly-coloured countenance and a tremendous bust, incased in a black dress with a shot silk blouse.
The valves are more globose and of a warmer colour; those that I have seen are even more spinous." Such may have been the case in those I sent: but it has occurred to me now and then to dredge specimens of C. aculeatum, which had escaped that rolling on the sand fatal in old age to its delicate spines, and which equalled in colour, size, and perfectness the noble one figured in poor dear old Dr.
A sudden, furious hissing burst out beneath her, as the compressed-air valves were thrown and the air-cushions formed beneath her thousands of spiracles. Then, with hardly a shudder, easily as a tired gull slips down into the quiet of a still lagoon, the vast air-liner took earth.
When these ceremonies were complete four stakes and a wooden mallet were produced and the corners of a square, about 200 by 200, were pegged. The cylinders were unloaded, set in place at equal intervals along one side of the square, turncocks and nozzles with elongated sprayjets attached, and the valves opened. A fine mist issued forth, settling gently over the stakedout area.
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