gear production machinery
21South Africa — Republic of, a country in S Africa; member of the Commonwealth of Nations until 1961. 42,327,458; 472,000 sq. mi. (1,222,480 sq. km). Capitals: Pretoria and Cape Town. Formerly, Union of South Africa. * * * South Africa Introduction South Africa… …
22Tractor — This article is about a vehicle used in agriculture or construction. For the power unit of a semi trailer truck (articulated lorry), see tractor unit. For other uses, see Tractor (disambiguation) …
23List of Chinese inventions — A bronze Chinese crossbow mechanism with a buttplate (the wooden components have …
24Industrial history of the People's Republic of China — Main articles: Economy and economic history of the People s Republic of China. China s industrial sector has shown great progress since 1949, but in the late 1980s it remained undeveloped in many respects. Although the country manufactured… …
25Economic Affairs — ▪ 2006 Introduction In 2005 rising U.S. deficits, tight monetary policies, and higher oil prices triggered by hurricane damage in the Gulf of Mexico were moderating influences on the world economy and on U.S. stock markets, but some other… …
26Duplex locomotive — This article is about a type of locomotive. For the Austrian experimental 4 cylinder locomotive, see Locomotive Duplex. Closeup of the second set of cylinders on the PRR S1. A duplex locomotive is a steam locomotive that divides the driving force …
27Medway watermills (lower tributaries) — River Medway (lower tributaries) Legend …
28German–Soviet Commercial Agreement (1940) — For other uses, see German–Soviet Commercial Agreement (disambiguation). German Soviet Commercial Agreement German Soviet Commercial Agreement Signed February 11, 1940 Location Moscow, Union of Soviet Socialist Republics Signatories Union of… …
29David Brown Ltd. — David Brown Tractor Factory Meltham Mills 1981 David Brown Engineering Limited is a British engineering company, principally engaged in the manufacture of gears and gearboxes. Their major gear manufacturing plant is in Swan Lane, Lockwood,… …
30Spinning mule — A pair of Condenser spinning mules. These have 741 spindles, being cut down from 133 feet (41 m) 1122 spindles they used to have up until the 24th Sept 1974, when they were retired from Elk Mill, Royton. The mule was built by Platt Brothers …
