Engineering Wonders of the World
Volume I

226 ENGINEERING WONDERS OF THE WORLD. to-day—with great possibilities still awaiting it—will enable the reader to appreciate the importance of Mr. Thwaite’s discovery. That famous laboratory test of his has had results which have affected the welfare of a great number of people, and can be valued properly only by the expert. Large fortunes have been realized by the builders of blast-furnace gas engines. It is sad to think that, like many another inventor before him, Thwaite, the ul- timate cause of these fortunes, should have reaped no material advantage for himself, but only the plentiful worry and disappointment which doubtless hastened his premature death. Koerting Cis Engine (Meyer) a Ericcson Hot air Engine (Rankine) KSB Direct-acting Steam Pump Simple Automatic, non-condensing (Carpenter) HHKHMHHMHHHI Simple Corliss, non-condensing (Hill) Compound Automatic. non«condensing (Thurston) HHHHHMHQHHHMHEHKHHHHB Simple Automatic, condensing (Barrus) Simple Corliss condensing (Thurston) Compound Automatic condensing SHHHHBHHHBSHEHBHBSHBHHBBRHBMHBHBHHIli Stearn Turbine pressure high (Hodgkinson) Compound Corliss. condensing (Jacobus) HHHHHHHHHHHHBEEBHHHMHHHHMMHBBMHHHB Compound Pumping Engine (Leavitt), condensing (Reynolds) Compound (McIntosh. Seymour & Co ) moderate suptrheaf (Marks) HHHBHH Steam Turbine, pressure, vacuum arfd superheat high (Hodgkinson j Compound (Rice &• Sargent), high superheat (.Jacobus) Tn pie xpansion Pumping Engine [E P Allis Co ) (Reynolds) Quadruple Expansion Pumping Engin. (Nordberg) (Rtynoldq Koerting Gas Engine (Meyer) COMPARISON OF HIGHEST THERMAL EFFICIENCIES REPORTED BY VARIOUS AUTHORITIES. (Referred to indicated horse-power.) The heavy lines indicate the proportionate efficiency in horse-power of various types of engines using the same amount of heat energy.