A descriptive and historical account of hydraulic and other machines for raising water (1842)
Ewbank, Thomas · Tilt & Bogue · leaf 356
f copper with folding joints , and a perforated hollowball at the extremityto prevent dirt or gravel from entering with the water . A short leathern tube connects this pipe with the suction cock . This engine is worked at the ends of the carriage , and the piston rods are connected to the leverby… … No . 152 . Modern French Fire - engine . The elevation of the jet depends upon the pressure to which the air in the air chamber is subjected ; the elasticity or spring of that fluid being inversely as the space it is made to occupy . Before an engine is set to Work the mterior of the chamber , like…
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