. Machinery and processes of the industrial arts, and apparatus of the exact sciences. -tions as the earliest in-vention of this kind thepump of LeDemours,which consisted simply~ of an inclined tube firm-ly attached to a verti- Girards Turbine Elevator. Cal axis, with which it revolved. The centrifugal force generated by the revolution caused thewater to rise; and the tube being bent outward and downward at the top, delivered it into a circular trough. This^ same thing in principle was reproduced inv1855, at the exposition of that year inParis, by Mr. Piatti, whose invention con-sisted of holl
. Machinery and processes of the industrial arts, and apparatus of the exact sciences. -tions as the earliest in-vention of this kind thepump of LeDemours,which consisted simply~ of an inclined tube firm-ly attached to a verti- Girards Turbine Elevator. Cal axis, with which it revolved. The centrifugal force generated by the revolution caused thewater to rise; and the tube being bent outward and downward at the top, delivered it into a circular trough. This^ same thing in principle was reproduced inv1855, at the exposition of that year inParis, by Mr. Piatti, whose invention con-sisted of hollow and concentric cones sur-rounding and fixed to an axis of revolu-tion. The water was made by the revo-lution of the system to rise between thecones, and was delivered in like mannerat the top into a circular trough. One ortwo partitions dividing the conical annu-lar space in which the water was prevented the sliding of the liquid upon the solid surface, and forced it to take the gyratory motion of the con-taining vessel. This machine may be made a means of raising large. Fig;. 56.
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Keywords: ., bookcentury1800, booksubjectmachinery, booksubjectscientificappa
