. Machinery and processes of the industrial arts, and apparatus of the exact sciences. mp—Andrews centrifugal pump—Gtrards turbine elevator—Blow-ing machines—Lloyds noiseless fan—Schieles compound blowing fan—Evrards rotary compression blower—Roots blower—Thirions hydraulicpressure blowlr— Hydraulic presses—Challet-Champions hydraulic press—Desgoffe and Olliviers Sterhydraulic apparatus—Apparatus for test-ing THE TENSION OF WIRE—ASCENSEUR EdOUX—HYDRAULIC COUNTERPOISE—Gl-RARDS PALIER GLISSANT—MECHANICAL PRESSES. ELEYATOKS. Tne number and variety of machines for the elevation of wat
. Machinery and processes of the industrial arts, and apparatus of the exact sciences. mp—Andrews centrifugal pump—Gtrards turbine elevator—Blow-ing machines—Lloyds noiseless fan—Schieles compound blowing fan—Evrards rotary compression blower—Roots blower—Thirions hydraulicpressure blowlr— Hydraulic presses—Challet-Champions hydraulic press—Desgoffe and Olliviers Sterhydraulic apparatus—Apparatus for test-ing THE TENSION OF WIRE—ASCENSEUR EdOUX—HYDRAULIC COUNTERPOISE—Gl-RARDS PALIER GLISSANT—MECHANICAL PRESSES. ELEYATOKS. Tne number and variety of machines for the elevation of water presentin the Exposition was very great. Every form of pump known had itsrepresentatives. The larger number of these were without originality ofconstruction, though many of them were quite worthy of considerationfor their cheapness or creditable workmanship. A few only have anyparticular claim to be noticed for novelty or improved efficiency. American steam-pump which, for its simplicity and steadiness of Fig. Earles Steam-pump. 170 PARIS UNIVERSAL EXPOSITION. action, attracted a great deal of attention, was exhibited by Messrs. , jr. & Co., of Springfield, but was understood to be the inventionof Mr. Oscar T. Earle, of the same place. This is a horizontal pump inwhich the pistons in the steam cylinder and water cylinder are attachedto the same rod. The peculiar merit consists in such an arrangement ofthe steam valves as to produce a perfectly smooth movement, and toallow the pump to be started in any position of the piston. The valves,or apparatus for steam distribution, are contained in a cylinder imme-diately over the steam cylinder, and the movement of the slide is effectedby means of an upright arm carried by the piston rod. The figure heregiven represents this arrangement. An air vessel immediately over thecylinder of the pump regulates the pressure of the ascending necessity of a
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Keywords: ., bookcentury1800, booksubjectmachinery, booksubjectscientificappa
