出典(authority):フリー百科事典『ウィキペディア(Wikipedia)』「2012/08/27 17:44:43」(JST)
A reaper is a farming tool or person that reaps (cuts and gathers) crops at harvest, when they are ripe.
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Hand reaping is done by various means, including plucking the ears of grains directly by hand, cutting the grain stalks with a sickle, cutting them with a scythe, or with a later type of scythe called a cradle. Reaping is usually distinguished from mowing, which uses similar implements, but is the traditional term for cutting grass for hay, rather than reaping crops.
The reaped grain stalks are gathered into sheaves (bunches), tied with string or with a twist of straw. Several sheaves (singular sheaf) are then leant against each other with the ears off the ground to dry out, forming a stook. After drying, the sheaves are gathered from the field and stacked, being placed with the ears inwards, then covered with thatch or a tarpaulin; this is called a stack or rick. In the British Isles a rick of sheaves is traditionally called a corn rick, to distinguish it from a hay rick ("corn" in British English means "grain", not "maize", which is not grown for grain there). Ricks are made in an area inaccessible to livestock, called a rick-yard or stack-yard. The corn-rick is later broken down and the sheaves threshed to separate the grain from the straw.
Collecting spilt grain from the field after reaping is called gleaning, and is traditionally done either by hand, or by penning animals such as chickens or pigs onto the field.
Hand reaping is now rarely done in industrialized countries, but is still the normal method where machines are unavailable or where access for them is limited (such as on narrow terraces).
The more or less skeletal figure of a reaper with a scythe – known as the "Grim Reaper" – is a common personification of death in many Western traditions and cultures. In this metaphor, death harvests the living, like a farmer harvests the crops.
A mechanical reaper or reaping machine is a mechanical, semi-automated device that harvests crops. Mechanical reapers are an important part of mechanized agriculture and a main feature of agricultural productivity.
It is believed[according to whom?] that either Romans or the Celts before them, invented a simple mechanical reaper that cut the ears without the straw and was pushed by oxen (Pliny the Elder Naturalis Historia XVIII,296). This device was forgotten in the Dark Ages, during which period reapers reverted to using scythes and sickles to gather crops.[citation needed]
Thomas Dobbs (actor) of Birmingham invents a reaping machine in 1814, which consists of a circular saw or sickle, the grain is drawn or fed up to the saw by means of a pair of rollers.[citation needed]
Patrick Bell of Scotland created a reaper that used a revolving reel, cutting knife and canvas conveyor in 1828. This machine was used around his county and some may have been exported, but the device was never patented. One of Bell's reaping machines is preserved in the National Museum of Rural Life in Scotland.
The 19th century saw several inventors in the United States claim innovation in mechanical reapers.The various designs competed with each other, and were the subject of several lawsuits.
Obed Hussey in Ohio patented a reaper in 1833, the Hussey Reaper.[1] Made in Baltimore, Maryland, Hussey’s design was a major improvement in reaping efficiency. The new reaper only required two horses working in a non-strenuous manner, a man to work the machine, and another person to drive. In addition, the Hussey Reaper left an even and clean surface after its use.[2]
The McCormick Reaper was designed by Robert McCormick in Walnut Grove, Virginia. However, Robert became frustrated when he was unable to perfect his new device. His son Cyrus asked for permission to try and complete his father’s project. With permission granted,[3] the McCormick Reaper was patented[4] by his son Cyrus McCormick in 1834 as a horse-drawn farm implement to cut small grain crops.[5] This McCormick reaper machine had several special elements:
Cyrus McCormick claimed that his reaper was actually invented in 1831, giving him the true claim to the general design of the machine. Over the next few decades the Hussey and McCormick reapers would compete with each other in the marketplace, despite being quite similar.
In 1861, the United States Patent and Trademark Office issued a ruling on the invention of the polarizing reaper design. It was determined that the money made from reapers was in large part due to Obed Hussey. S.T. Shugert, the acting commissioner of patents, declared that Hussey’s improvements were the foundation of their success. It was ruled that the heirs of Obed Hussey would be monetarily compensated for his hard work and innovation by those who had made money off of the reaper. It was also ruled that McCormick’s reaper patent would be renewed for another 7 years.[1]
Although the McCormick reaper was a revolutionary innovation for the harvesting of crops, it did not experience mainstream success and acceptance until at least 20 years after it was patented by Cyrus McCormick. This was because the McCormick reaper lacked a quality unique to Obed Hussey’s reaper. Hussey’s reaper used a sawlike cutter bar that cut stalks far more effectively than McCormick’s. Only once Cyrus McCormick was able to acquire the rights to Hussey’s cutter-bar mechanism (around 1850) did a truly revolutionary machine emerge.[7] Other factors in the gradual uptake of mechanized reaping included natural cultural conservatism among farmers (proven tradition versus new and unknown machinery); the poor state in which many new farm fields were in, including rocks, stumps, and uneven soil, which made the lifespan and operability of a reaping machine questionable; and some amount of fearful Luddism among farmers that the machine would take away jobs, most especially among hired manual labourers.[8]
After the first reapers were developed and patented, other slightly different reapers were distributed by several manufacturers throughout the world. The Champion (Combined) Reapers and Mowers, produced by the Champion Interest group (Champion Machine Company, later Warder, Bushnell & Glessner, absorbed in IHC 1902) in Springfield, Ohio in the second half of the 19th century, were highly successful in the 1880s in the United States.[9] Springfield is still known as "The Champion City".
Generally, reapers developed into the 1872 invented reaper-binder, which reaped the crop and bound it into sheaves. By 1896, 400,000 reaper-binders were estimated to be harvesting grain.[clarification needed (number for the US only?)] This was in turn replaced by the swather and eventually the combine harvester, which reaps and threshes in one operation.
In Central European agriculture reapers were – together with reaper-binders – common machines until the mid-20th century.
Wikisource has original text related to this article:
The New International Encyclopædia/Reapers
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