. Modern mechanism, exhibiting the latest progress in machines, motors, and the transmission of power, being a supplementary volume to Appletons' cyclopaedia of applied mechanics . 320 ENGINES, STEAM, STATIONARY RECIPROCATIN(;. The Acme Automatic Safety Engine and Boiler, made by the Rochester Machine-ToolWorks, Rochester. N. Y., is sliown in Fijjs. (55 and GO. The engine (Fig. 05) is an upright double-cylinder, single-acting engine, with cranks 180°to each other. The pistons being U limes tlie stroke in length, form their own guides, the. Fig 65.—The Acme automatic safety engine. wrist-pins b
. Modern mechanism, exhibiting the latest progress in machines, motors, and the transmission of power, being a supplementary volume to Appletons' cyclopaedia of applied mechanics . 320 ENGINES, STEAM, STATIONARY RECIPROCATIN(;. The Acme Automatic Safety Engine and Boiler, made by the Rochester Machine-ToolWorks, Rochester. N. Y., is sliown in Fijjs. (55 and GO. The engine (Fig. 05) is an upright double-cylinder, single-acting engine, with cranks 180°to each other. The pistons being U limes tlie stroke in length, form their own guides, the. Fig 65.—The Acme automatic safety engine. wrist-pins being slightly below the center of the pistons, and the steam-rings above and belowthe wrist-pins. The valve is of the balanced rocking type, and is placed on the top of thecylinders, the valve-case forming the cylinder-heads. The fly-wheel contains the automaticgovernor, which regulates the admission of steam to suit the varying loads, )iy changing thethrow of the eccentric that actuates the valve. Lubrication is accomplished by carrying in the crank-case a mixture of oil and water,into which the cranks dip at every revolu-tion. The boiler is shown in Fig. 66. It isof the sectional tyj>e. the water being car-ried in a series of rings connected by in-clined tubes that break joints. The boileris douljje-jacketed to prevent loss of heat byradiation. A large dome on top is used todry the steam. The water-supply is main-tained by a pump worked from the mainshaft, wliich forces the water through a coil-heater, where it is subjected
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Keywords: ., bookcentury1800, bookdecade189, booksubjectmechanicalengineering
