DRAINAGE OF THE EMBLEM LAKE. and attached to the upper part of the piston- rod by means of eleven large walking-beams. ... Keeping this in mind, the chief problem was to use the steam in the most economical manner. Before these engines were built, there were only five small steampumps runnig in the Netherlands, of 30 horse-power each; but their average consumption was 20 lbs. of coal peranbsp;...
|Title||:||De Bow's New Orleans Monthly Review|