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A chain pump is a type of water pump that uses a chain to move water from one place to another. It works on the principle of a continuous loop of chain moving through a series of sprockets, with attached buckets that lift water as the chain passes over the top sprocket and discharge it as the chain reaches the bottom.
The process of assigning HS codes is known as "HS Classification". All products can be classified in the HS by using the General Rules for the Interpretation of the Harmonized System ("GRI") that must be applied in strict order. HS codes can be determined by a variety of factors including a product's composition, its form and its function.
According to F. Lisheng and T. Qingjun, the hand-crank of the rotary quern was different from a crank, which was the combination of a hand-crank and a push-and-pull connecting rod by a hinge. [7] The Antikythera mechanism, dated to around 200 BC, [25] [26] used a crank as a part of its mechanism. [27]
The TARIC code (TARif Intégré Communautaire; Integrated Tariff of the European Communities) is designed to show the various rules applying to specific products when imported into the EU.
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Each pump had plungers 28 inches (71 cm) in diameter with a stroke of 10 feet (3.0 m). [10] Water was pumped by each pump through a vertical pipe to a discharge tank just beneath the next pump in series, and thus was carried in eight steps to the surface. [11] The total capacity of the pump system was 3,400 US gallons (13,000 L) per minute. [2]
A bilge pump is a water pump used to remove bilge water. Since fuel can be present in the bilge, electric bilge pumps are designed to not cause sparks. Electric bilge pumps are often fitted with float switches which turn on the pump when the bilge fills to a set level. Since bilge pumps can fail, use of a backup pump is often advised. The ...