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Baler
A baler is a piece of farm machinery used to compress a cut and raked crop (such as hay, cotton, straw, or silage) into compact bales that are easy to handle, transport, and store. Several different types of balers are commonly used, each producing a different type of bale – rectangular or cylindrical, of various sizes, bound with twine, strapping, netting, or wire.
Industrial balers are also used in material recycling facilities, primarily for baling metal, plastic, or paper for transport.
==History==
Before the 19th century, hay was cut by hand and most typically stored in haystacks. In the 1860s mechanical cutting devices were developed; from these came the modern devices including mechanical mowers and balers. In 1872 a reaper that used a knotter device to bundle and bind hay was invented by Charles Withington; this was commercialized in 1874 by Cyrus McCormick.〔Bridon Cordage, (The role of twine in North American agriculture )" (accessed Jan 14, 2011)〕 In 1936, Innes invented an automatic baler that tied bales with twine using Appleby-type knotters from a John Deere grain binder; an improved version patented by Ed Nolt in 1939 was more reliable and became commonly used.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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