The Life, Times, and Scientific Labours of the Second Marquis of Worcester / To which is added a reprint of his Century of Inventions, 1663, with a Commentary thereon.

by Henry Dircks

E, the vertical water pipe by means of—

F, F', continuations of the same pipe conducted into and nearly touching the bottom of each vessel A, A'.

G, G', are two water supply pipes, with valves a, a', dipping into—

H, the well. It is obvious that by uniting these pipes, and placing the valves in the upper bend of each, it would be sufficient for a single pipe to dip into the water to be raised.

On the steam pipe B B' is—

b, a four-way steam cock, operated by—

b', its lever handle; and on the horizontal portion of the water pipe F F', is—

c, a four-way water cock, operated by—

c', its lever handle.

^*_*^* The four-way cock is figured and described as early as 1618, by Robert Fludd, in “Historia Macrosmi,” folio, page 467.