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FLOW OF AIR THROUGH AN ORIFICE IN CUBIC FEET OF FREE AIR PER MINUTE. Flowing from a Round Hole in Receiver into the Atmosphere.

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FLOW OF AIR THROUGH AN ORIFICE IN CUBIC FEET OF FREE AIR PER MINUTE.

Flowing from a Round Hole in Reciever into the Atmosphere.—Continued.

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LOSS OF PRESSURE THROUGH FRICTION OF AIR IN PIPES FOR EVERY ONE HUNDRED FEET LENGTH OF PIPE. INITIAL GAUGE PRESSURE, 80 POUNDS AT RECEIVER,

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MEAN EFFECTIVE PRESSURES.*

For the Compression Part only of the Stroke when Compressing and Delivering Air from One Atmosphere to Given Gauge-Pressure in a Single Cylinder.

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*The Mean Effective Pressure for compression only is always lower than

the Mean Effective Pressure for the whole work.

APPROXIMATE AMOUNT OF AIR REQUIRED AT SEA LEVEL FOR SPECIFIC SIZES

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Air Pressure.

Air Compression at Sea Level of one Drill-Cubic feet per minute of free air,

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