Hawkins, N. (Nehemiah), 1833- · New York : Theo. Audel · leaf 51
littleneed to be written relating to them—the cuts with the titlesspeak for themselves and also indicate their manner of use.(See note.) In Syria and Palestine at the present time the antiquebucket and rope, in modified form, is still used in raising waterfrom wells for irrigation. The buckets are… … Roman Screw.—Fig. 72. A method much used where rivers are available is thewheel and bucket, in which the buckets are mounted on therim of a large wheel which is*of a diameter equal to the heightto which the water is to be raised. The processes althoughextremely crude are well adapted to countries…
Hydraulic machinery · Pumping machinery
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