Pumps and Hydraulics, Part 1 (of 2)Hawkins, N. (Nehemiah)
Science
Pumps and Hydraulics, Part 1 (of 2)
Hawkins, N. (Nehemiah)
Hydraulic machinery; Pumping machinery
We are now to examine the modes practised by the ancients, in obtaining
water from wells. In all cases of moderate depth, the most simple and
efficient, was to form an inclined plane or passage, from the surface
of the ground to the water; a method by which the principal advantages
of an open spring on the surface were retained, and one by which
domestic animals could procure water for themselves without the aid or
attendance of man.
But when in process of time, these became too deep for exterior
passages of this kind to be convenient or practicable, the wells
themselves were enlarged, and stairs for descending to the water,
constructed within them.
HISTORICAL NOTE.—One of the most appalling facts that is recorded
of suffering from thirst occurred in 1805. A caravan proceeding
from Timbuctoo to Talifet, was disappointed in not finding water
at the usual watering places; when, horrible to relate, all the
persons belonging to it, two thousand in number, besides eighteen
hundred camels _perished by thirst_! Occurrences like this, account
for the vast quantities of human and other bones, which are found
heaped together in various parts of the desert. While the crusaders
besieged Jerusalem, great numbers perished of thirst, for the Turks
had filled the wells in the vicinity. Memorials of their sufferings
may yet be found in the heraldic bearings of their descendants. The
charge of a foraging party “for water,” we are told, “was an office
of distinction;” hence, some of the commanders on these occasions,
subsequently adopted _water buckets_ in their coats of arms, as
emblems of their labors in Palestine.
Wells with stairs by which to descend to the water, are still common.
The inhabitants of Arkeko in Abyssinia, are supplied with water from
six wells, which are twenty feet deep and fifteen in diameter. The
water is collected and carried up a broken ascent by men, women and
children. Fryer in his Travels in India speaks of “deep wells many
fathoms underground, with stately stone stairs.” Near the village of
Futtehpore, is a large well, ninety feet in circumference, with a broad
stone staircase which is about thirty feet deep to descend to the
water. The fountain of Siloam is reached by a descent of thirty steps
cut in the solid rock, and the inhabitants of Libya, where the wells
often contain little water, “draw it out in little buckets, made of the
shank bones of camels.”
Wells with stairs are not only of very remote origin, but they appear
to have been used by all the nations of antiquity. They were common
chiefly, among the Greeks and Romans.
[Illustration: ITALIAN MODE OF RAISING WATER TO THE UPPER FLOORS OF A
HOUSE.]
As a matter of interest some six or eight representations of the early
forms of wells, have been introduced; but little need to be written
relating to them—the cuts with the titles speak for themselves and also
indicate their manner of use. (See note.)
Public-domain text, read in full here on John Shaqi.
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