. Railway mechanical engineer . -pe Fifteen. In addition to plain belt drive, each ofthe four sizes is built as a self-contained electric motor out-fit, driven through a pinion and internal gears, or by employ-ing a short belt drive arrangement. The compressing endand electric motor of both gear and short belt-drive units arefurnished mounted on a common sub-base, so that they are. 3-ln. by 3-ln. Air-Cooled and 4^2-ln. by Water-CooledIngersoll-Rand Air Compressors in no way dependent upon the foimdation for correct aline-ment. Several noteworthy features of construction have been in-corj
. Railway mechanical engineer . -pe Fifteen. In addition to plain belt drive, each ofthe four sizes is built as a self-contained electric motor out-fit, driven through a pinion and internal gears, or by employ-ing a short belt drive arrangement. The compressing endand electric motor of both gear and short belt-drive units arefurnished mounted on a common sub-base, so that they are. 3-ln. by 3-ln. Air-Cooled and 4^2-ln. by Water-CooledIngersoll-Rand Air Compressors in no way dependent upon the foimdation for correct aline-ment. Several noteworthy features of construction have been in-corjiorated, of which the constant-level lubrication system isthe nujst imf»ortant. Others include the constant speed un-loader for plain belt-drive machines; the centrifugal unloaderfor start and stoj) control machines; and the increased size ofthe water reservoir cooling jxrt. The lubrication of .small vertical compressors employ-ing the enclosed crank case and . has often beena source of concern wherever oil in the air is a serious tendency of the old .system has been to feed too much,resulting in the discharged air ctwitaining excess oil, or toolittle, causing scored cylinders, excess loads and burned outl)earings. As with the ordinary splash system, the base of the forms an oil reservoir for the constant-lc-vcl , with t
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering
