A history of the growth of the steam-engine . 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 rio. 94.—Vertical Stationary Steam-Engine. Section. Engines fitted with the ordinary rigid bearings
A history of the growth of the steam-engine . 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 rio. 94.—Vertical Stationary Steam-Engine. Section. Engines fitted with the ordinary rigid bearings requireto be erected on a firm foundation, and to be kept in perfectline. If, by the settling of the foundation, or from anyother cause, they get out of line, heating, cutting, andthumping result. To obviate this, modern engines are oftenfitted with self-adjusting bearings throughout; this givesthe engine great flexibility and freedom from friction. Theaccompanying cuts show clearly how this is accomplished. 310 THE STEAM-ENGINE OF TO-DAY. The pillow-block has a spherical shell turned and fitted intothe spherically-bored pillow-block, thus allowing a slightangular motion in any direction. The connecting-rod isforged in a single piece, without straps, gibs, or key, and ismortised through at each end for the reception of the brassboxes, which are curved on their backs, and fit the cheek-pieces, between which they can turn to adjust themselvesto the pins, in the plane of the axis of the
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Keywords: ., bookcentury1800, bookdecade1870, bookidc, booksubjectsteamengines
