A history of the growth of the steam-engine . t-acting engine, with base-plate—a form which is a favorite with many engineers. The engine shown in the engraving consists of two prin-cipal parts, the cylinder and the frame, which is a taperingcolumn having openings in the sides, to allow free accessto all the working parts within. The slides and pillow-blocks are cast with the column, so that they cannot be-come loose or out of line ; the rubbing surfaces are largeand easily lubricated. Owing to the vertical position, thereis no tendency to side wear of cylinder or piston. Thepacking-rings are
A history of the growth of the steam-engine . t-acting engine, with base-plate—a form which is a favorite with many engineers. The engine shown in the engraving consists of two prin-cipal parts, the cylinder and the frame, which is a taperingcolumn having openings in the sides, to allow free accessto all the working parts within. The slides and pillow-blocks are cast with the column, so that they cannot be-come loose or out of line ; the rubbing surfaces are largeand easily lubricated. Owing to the vertical position, thereis no tendency to side wear of cylinder or piston. Thepacking-rings are self-adjusting, and work free but crank is counterbalanced ; the crank-pin, cross-head pin,piston-rod, valve-stem, etc., are made of steel; all the bear-ing surfaces are made extra large, and are accurately fitted ;and the best quality of Babbitt-metal only used for thejournal-bearings. 308 THE STEAM-ENGINE OF TO-DAY. The smaller sizes of these engines, from 3 to 10 horse-power, have both pillow-blocks cast in the frame, giving a. Pig. 93.—Vertical Stationary Steam-Engine. bearing each side of the double cranks. They aie built bysome constructors in quantities, and parts duplicated by STATIONARY ENGINES. 309 special machinery (as in fire-arms and sewing-machines),which secures great accuracy and uniformity of workman-ship, and allows of any part being quickly and cheaplyreplaced, when worn or broken by accident. The next fig-ure is a vertical section through the same engine.
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Keywords: ., bookcentury1800, bookdecade1870, bookidc, booksubjectsteamengines
