"Invented to raise water. A hollow tube wound spirally around a solid cylinder. As the cylinder is turned, water is fed up through the hollow tube and discharged at the top of the tube." —Quackenbos 1859

Archimedes' Screw

"Invented to raise water. A hollow tube wound spirally around a solid cylinder. As the cylinder is turned,…

"Hydraulic Scroll. a, case, inclosing center-discharge turbine water-wheel; b, openings for inflow of water; c, c', gates for admitting water to central wheel-space d (the wheel is not shown); e, e', gate-shafts; f, shaft by which the two gates are operated simultaneously and equally from worm-gearing at the top of the gate-shafts." -Whitney, 1911

Hydraulic Scroll

"Hydraulic Scroll. a, case, inclosing center-discharge turbine water-wheel; b, openings for inflow of…

A sample of hydraulics.

Hydraulics

A sample of hydraulics.

Water flowing through a jet pump.

Jet Pump

Water flowing through a jet pump.

Water flow example, with hydraulics.

Water Flow

Water flow example, with hydraulics.