A descriptive and historical account of hydraulic and other machines for raising water (1842)
Ewbank, Thomas · Tilt & Bogue · leaf 294
ame plan as these pumps ; one long piston playing in two horizontal cy - linders , and the power transmitted from it by means of a cross - head at - tached to the middle of its length , and on that part which moves between the stuffing boxes . Another celebrated machine is also copied from them —… … on one end tili one plunger descended to the No . 124 . Frictionless Plunger Pump . bottom of its tube , and he then walked to the other end , the declivity at first being about 25 ° , but gradually growing less as he advanced . In this way he caused the other plunger to descend , and so on…
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