A descriptive and historical account of hydraulic and other machines for raising water, ancient and modern : with observations on various subjects connected with the mechanic arts: including the progressive development of the steam engine . No. 139. Belidor has described a similar pump In the first volume of his 379. The case Is a larger portion of a circle than that of , and the piston Is furnished with a valve. A pump on the same prm-ciple \vas adopted by Bramah as a fire-engine In 1793 : His was a shortcylinder, to the movable axle of which two pistons were attached that
A descriptive and historical account of hydraulic and other machines for raising water, ancient and modern : with observations on various subjects connected with the mechanic arts: including the progressive development of the steam engine . No. 139. Belidor has described a similar pump In the first volume of his 379. The case Is a larger portion of a circle than that of , and the piston Is furnished with a valve. A pump on the same prm-ciple \vas adopted by Bramah as a fire-engine In 1793 : His was a shortcylinder, to the movable axle of which two pistons were attached thatextended quite across, and had an opening covered by a clack in each. No. 140 consists of a short horizontal cylinder: a portion of the lowerpart is separated from the rest by a plate where the suction pipe termi-Qates in two oj)enIngs tha; are covered by clacks c c. The partition A Criap. Apiiliration of Pinnjs in Modern Water-icorks. 29c extends tiifougli the entire length of the cylinder and is made air andwater tight to both ends, and also to the plate upon which its Iom er edgerests. Tlie upper edge extends to the under side of the axle to whichtlie piston B is united. One end of the axle is passed through the cylin-der and
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Keywords: ., bookcentury1800, bookdecade1870, bookiddescriptiveh, bookyear1876
