. Modern mechanism, exhibiting the latest progress in machines, motors, and the transmission of power, being a supplementary volume to Appletons' cyclopaedia of applied mechanics . ress. WINDLASS, STEAM CAPSTAN. 915 A hydrostatic power wheel press made by the Bentel & Margedant Co. has a vertical col-umn, containing the cylinder, and supplied with crude petroleum under pressure from twovertical pumps, operated by eccentrics upon a shaft driven by a sprocket chain. A lever infront of the machine permits the oil to flow from a pressure reservoir to the rim cylinder,and the same lever releases th
. Modern mechanism, exhibiting the latest progress in machines, motors, and the transmission of power, being a supplementary volume to Appletons' cyclopaedia of applied mechanics . ress. WINDLASS, STEAM CAPSTAN. 915 A hydrostatic power wheel press made by the Bentel & Margedant Co. has a vertical col-umn, containing the cylinder, and supplied with crude petroleum under pressure from twovertical pumps, operated by eccentrics upon a shaft driven by a sprocket chain. A lever infront of the machine permits the oil to flow from a pressure reservoir to the rim cylinder,and the same lever releases the pressure and permits the oil to flow back to the suction sideof the pumps. A pop valve permits escape of the liquid when the pressure in the Iarareaches 80 tons. The ram rises J, in. for everv rotation of the pump-driving eccentric haft. WINDLASS, STEAM CAPSTAN. Fig. i represents a new form of steam capstan wind-lass, manufactured by the American Ship Windlass Co., of Providence, R. I., which hasbecome almost exclusively adopted on American vessels. Among the novel features are thefollowing : The valves of the engines are driven by a straight eccentric, without rocker. Fig. 1.—Stejim capstan windlass. shafts. There is a steam reverse valve for reversing the windlass in case of jamming of theropes. The solid center bearing of the main siiaft is arranged close to the gearing, so as toprevent any springing of the shaft under sudden strain. It will also be observed that thepower is transmitted directly from engine to windlass, with no intermediate gearing. Engineand windlass are connected to one plate, by which the parts are tied together so that theycan not get out of line. If the deck above twists or strains, or even is entirely sweptaway, the windlass can still be efficiently operated by steam. A novel lubricating contrivance,which constantly applies oil tothe teeth of the worm gear, anda crank-shaft counterbalance,which balances the weight of thecranks, pistons, and rods, a
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Keywords: ., bookcentury1800, bookdecade189, booksubjectmechanicalengineering