shaduf

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shaduf

or

shadoof

(both: shədo͝of`, shä`do͝of), primitive device used to lift water from a well or stream for irrigation purposes. Essentially the device consists of a long boom balanced across a horizontal support from 8 to 10 ft (2.4–3 m) above the ground. The beam has a long, thin end and a short, stubby end. From the long end a bucket or similar container is suspended, and on the shorter end there is a counterweight. The operator pulls on a rope that lowers the long end of the boom so that the bucket submerges and is filled with water. He then releases the rope, allowing the counterweight to raise the bucket to the desired level, and then empties the bucket and repeats the process. Shadufs can be used in a series where it is desired to raise water to a height exceeding the range of a single one. It has been suggested that the massive stones used in building the pyramids of Egypt were raised by an ancient variant of this device.
References in periodicals archive ?
Shadoof stayed on well to take third spot, two lengths behind the runner- up.
Shadoof (40-1) stayed on to take third place a further two lengths adrift with Grinkov (25-1) back in fourth.
Shadoof (8-1) was laid out for this race and provided jockey Martin Dwyer with one of his biggest successes.
Bomb Alaska had looked more than ready for the step-up to Listed class after his fine effort in the big Newmarket handicap, form which had been well advertised since with successes for Shadoof and Albarahin at Newbury the previous weekend.
Bomb Alaska then ran second to She's Our Mare in the Cambridgeshire and I rate that form highly after recent victories for beaten pair Shadoof and Albarahin.
The pace comes from Night City, who almost certainly went too fast for his own good when a creditable fifth behind Shadoof at Newbury last week.
That race has worked well for us so far and, although Evander does not come here with the sort of credentials of Shadoof or Albarahin, Caerau's presence does add a bit of spice.
The second horse on Newbury's two-day card to boost the Cambridgeshire form - after Newmarket third Shadoof had landed the 10-furlong handicap on Friday - Albarahin improves to a Postmark of 109+ and promises better to come.
Mirjan's good late progress into fourth in the competitive mile-and-a-quarter handicap won by Shadoof strongly suggested that another try at a mile and a half would see some improvement now.
The champion jump trainer was also underbidder for William Muir's good handicapper Shadoof, but this one will be sticking to the Flat, having been bought for 105,000gns by Saudi Arabian clients of Gordon-Watson.
Cambridgeshire third Shadoof won the 10-furlong handicap in decisive fashion.
Shadoof, third in the big handicap at Newmarket three weeks ago, did us a good turn yesterday and today's main bet, who was sixth despite apparently having trouble seeing out the trip in the conditions, has an excellent chance of following suit.