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Updated: May 7, 2025
This construction is admitted to be wasteful, but in some cases, notably that of the Westinghouse pump, economy in steam consumption is sacrificed to lightness and economy of space. Many efforts were made to equalize the power and resistance by constructing the air compressor on the crank shaft principle, putting the cranks at various angles, and by angular positions of steam and air cylinders.
To reduce the strains arising from firing, the arm is fitted with what is known as the "differential recoil." Above the breach is an air recuperator and a piston, while there is no hydraulic brake such as is generally used. The compressor is kept under compression while the car is travelling with the gun out of action, so that the arm is available for instant firing.
He had no answer to that. The question had popped into his mind unbidden. "We didn't take the compressor apart," Scotty reminded him. That was true. But Rick had started it in Charlotte Amalie to be sure it was functioning. There was no oil in it then. He said as much. "You started the compressor at the same time you checked the tanks," Zircon reminded him.
Valves and other mechanism connected with the cylinder of an air compressor were once of such crude construction that it was impossible to reduce the clearance spaces to a reasonable point, and, furthermore, the valves were heavy and so complicated that anything like a high speed would either break them or wear them out rapidly, or derange them so that leakages would occur.
Limitations to the speed of the compressor, because of the liability to break the cylinder head joint by water confined in the clearance spaces. Absorption of air by water.
Huge dumps of white waste were spewed out along the hillside, there were houses, a big tent and criss-crossed trails; but the only sign of life was that chuh, chuh, of the engine and the explosive blap, blaps of an air compressor. It was Murray's camp, and the engine and the compressor were driving his diamond drill.
As you say, Rick, diving certainly develops the appetite!" They docked, and Tony and Zircon went off to see about preparing sandwiches. The boys decided that rather than carry the tanks back and forth from the pier to the shed, it would be more sensible to bring their small, portable gas-driven compressor to the pier.
Without such spray connections, it is safe to say that this compressor has scarcely any cooling advantages at all, so far as air cooling is concerned. Water is not a good conductor of heat.
"One time when they had a snow blockade in New York I started to build a machine with Batchelor a big truck with a steam-engine and compressor on it. We would run along the street, gather all the snow up in front of us, pass it into the compressor, and deliver little blocks of ice behind us in the gutter, taking one-tenth the room of the snow, and not inconveniencing anybody.
John Darlington, of England, gives the following particulars of a modern air compressor of European type: "Engine, two vertical cylinders, steam jacketed, with Meyer's expansion gear.
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