Click the link below for extra information on this topic! [14] Chinese square-pallet chain pumps were used mostly for irrigation, though they found use in public works as well. The earliest evidence for this device is in a Babylonian text from about 700 B.C.. Chain pumps were used in European mines during the Renaissance; mineralogist Georg Agricola illustrated them in his De re metallica (1556). In the Han dynasty sometimes irrigation can be hard because of elevation problems. [2], A version of the chain pump was used in Ancient Roman times, sometimes with pots fixed to the chain, which, as they passed over the top pulley, tipped the water out. The Han Dynasty: Top Ten Countdown: Home; Number 10; Number 9; Number 8; Number 7; Number 6; Number 5; Number 4; Number 3; Number 2; Number 1; Number 1: Chain Pump. It was not until 60 BC that the Han Dynasty established the Protectorate of the Western Regions in Wulei (near the present Luntai) to supervise the 36 states in the vast area. The chain pump was invented so the Han farmers could move low water in ditches to their higher croplands. Create your own unique website with customizable templates. The wheels moved many wooden planks, which made the water move. Chain pumps were also used in ancient China by at least the 1st century A.D. [17] Yet there were other types of chain pumps besides the square-pallet design. One part of the chain dips in to the water, and the chain runs through a tube, slightly bigger than the diameter of the discs. Technology. [2] The mechanical flywheel, used to smooth out the delivery of power from a driving device to a driven machine, was first employed by Ibn Bassal (fl. The ability that salt was able to help preserve meat and vegetables made it very valuable to the people in the ancient times. [8] They were used in dockyards, and several formed part of the Portsmouth Block Mills complex. Fragments of these buckets were found on the Roman barges of Lake Nemi. [5] The first known use of a crankshaft in a chain pump was featured in another one of al-Jazari's saqiya machines. Han dynasty poetry was dominated by the fu genre, which achieved its greatest prominence during the reign of Emperor Wu. [6][verification needed] The concept of minimizing the intermittency is also first implied in one of al-Jazari's saqiya chain pumps, which was to maximise the efficiency of the saqiya chain pump. One invention that helped farmers was the chain pump. Chain pumps were used for centuries in the ancient Middle East, Europe, China, and ancient Egypt. … However, the Han Dynasty was able to help the farmers by inventing the chain pump. Want to learn more about the Han Dynasty? [1610 20] * * * …   Universalium, chain pump — noun A water pump consisting of a series of buckets on a chain, wheel or drum …   Wiktionary, chain pump — /ˈtʃeɪn pʌmp/ (say chayn pump) noun a mechanism for raising water, etc., in buckets or the like attached to an endless moving chain …   Australian English dictionary, chain-pump — …   Useful english dictionary, Pump — Pump, n. [Akin to D. pomp, G. pumpe, F. pompe; of unknown origin.] 80. These were sometimes powered by hydraulics of a rushing current against a horizontal water wheel acting against a vertical wheel,[11] and others by a horizontal mechanical wheel acting upon a vertical wheel that was pulled by the labor of oxen. [1] The device then appeared in ancient Egypt from about 200 B.C., featuring a pair of gear-wheels. The farmers used pedals to turn the wheels. These were commonly powered by humans or animals. In China, they were also called dragon backbones. Square-pallet in China. 1038–1075), of Islamic Spain, in a saqiya chain pump. The first method of getting salt was gathering it from the sea, but the people of the Han Dynasty figured out a way to mine salt from under the ground. The Han Dynasty Invented and renewed lots of important Tools for farming. ; the historian Vitruvius mentioned it around 30 B.C. Also, the Han skill in ironwork had also helped the farmers by supplying them with the process of pouring melted iron into molds, which made it easier to make strong iron plows. The infamous Eastern Han court eunuch Zhang Rang (d. A.D. 189) once ordered the engineer Bi Lan (畢嵐) to construct a series of square-pallet chain pumps outside the capital city Luoyang.