Stationary steam engines, simple and compound; especially as adapted to light and power plants . us. Thurston, Gardner & Co., sub-stituted for this the Pitcher hydraulic regulator and aregister valve, which gave a much better regulation; thiscontrivance was also isochronous, /. e., it was capable ofholding the engine at speed, whatever the variation ofsteam-pressure or of load. But an immense step in advance of this, then, best prac-tice was made by Geo. H. Corliss, a young Providence me-chanic, who had exchanged the role of sewing-machine inven-tor for that of the inventor of the most famous
Stationary steam engines, simple and compound; especially as adapted to light and power plants . us. Thurston, Gardner & Co., sub-stituted for this the Pitcher hydraulic regulator and aregister valve, which gave a much better regulation; thiscontrivance was also isochronous, /. e., it was capable ofholding the engine at speed, whatever the variation ofsteam-pressure or of load. But an immense step in advance of this, then, best prac-tice was made by Geo. H. Corliss, a young Providence me-chanic, who had exchanged the role of sewing-machine inven-tor for that of the inventor of the most famous steam enginethat has appeared since the time of Watt. The Corliss enginewas patented in 1849, and rapidly came into use, its re-markable economy, when competing with the best existingengines, the peculiar business tactics of its builder, and therapidly increasing demand for efficient, and especially wellregulated, engines, combining to give it a wonderfully rapidintroduction. The engine is an interesting illustration of a machinewhich is the representative of a peculiar type, each detail. ELECTRIC LIGHTING PLANTS. 21 of which is especially adapted to its place in that machine,and is characteristically different from the parts which per-form the same office in other engines. The leading featuresof this machine are: 1. The use of four valves—two steam, and two exhaust—so placed as to reduce clearance to a minimum. 2. The use of a rotating valve, capable of being cheaplyand readily fitted up, of being easily moved, and of beingconveniently worked by connections outside the steamspaces. 3. The use of a wrist-plate, caused to oscillate by asingle eccentric, and directly so connected with all fourvalves that each may be given a rapid opening and closingmovement, and be held open and nearly still, at either end ofits range, by swinging the line of connection nearly into theline between centres, thus permitting nearly a full openingof port to be maintained during an appreciable int
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectsteamen, bookyear1902
