water and air, the other is the mining company nearly $40,000 per annum, and discharging its water. they are expecting by the use of this system to practi- At the upper end of the main cylinders are auxiliary cally do away with this expense. cylinders, D, containing pistons, and having in their… … tween adjacent portions of the ex- HENDERSON AND SCHUTZ'S AIR COMPRESSOR. haust steam pipe and the copper condensing tube. The manner of connecting the pipes is not limited ends of the horizontal cylinder, E, located between the to the exact form shown, and the two main cylinders, and shown also in…
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