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The process of separating hay and chaff from grain is called

What is the process of separation of grain from chaff

What is the process of separation of grain from chaff called? Online Answer. Winnowing is an agricultural method developed by ancient cultures for separating grain from chaff. It can also be used to remove pests from stored grain. Winnowing usually follows threshing in grain preparation. Helping Hand. 1 answer. 4 people helped. Ans. The process of separating the grain from chaff is winnowing. Grain means dhan and chaff is their cover and this process of removing the cover is called winnowing. Niccherip5 and 21 more users found this answer helpful. heart outlined Name the process in which grains are separated from chaff and hay with the help of wind. A. Winnowing. B. C. D. Medium. Answer. Correct option is . A. Winnowing. Answer verified by Toppr . Upvote (0 After threshing, the chaff and hay are separated from grain by putting the threshed material before a good natural breeze. The process of separating the grain from chaff and hay with the help of natural breeze is called winnowing

The process of separating grain from chaff and hay with the help of wind is called winnowing. When the grains mixed with chaff and hay is made to fall from a height in blowing wind,the grains,being heavy falls straight to the ground whereas the chaff and hay being much lighter are carried some distance away by the wind Winnowing is a process by which chaff is separated from grain. It can also be used to remove pests from stored grain. Winnowing usually follows threshing in grain preparation. In its simplest form, it involves throwing the mixture into the air so that the wind blows away the lighter chaff, while the heavier grains fall back down for recovery Note: `Chaff' refers to the outer covers of wheat or other cereal which are separated from the grain by a process called winnowing. In the Bible (Matthew 3:12; Luke 3:17), John the Baptist uses the image of someone separating the wheat from the chaff to describe how Jesus will separate those who go to heaven from those who go to hell Chaff is the loose, outer covering on wheat and other grains that must be separated in the threshing and winnowing process of harvesting grain. In Bible times, grain was threshed, or trampled, crushed, and beaten, on outdoor threshing floors to separate out the inedible parts of the grain, called chaff The first task is pretty simple: cut the heads from the top of the wheat plants and then thresh them to remove the grains from the rest of the head, called chaff. The grains are divided from additional plant fragments, cleaned and taken to a mill, where any separation of bran, endosperm and germ takes place

What is the process of separation of grain from chaff called

Once it is removed it is often referred to as chaff. Separating remaining loose chaff from the grain is called winnowing - traditionally done by repeatedly tossing the grain up into a light wind which gradually blows the lighter chaff away. Also Know, how do farmers separate wheat from tares Click hereto get an answer to your question ️ Name the process in which grains are separated from chaff and hay with the help of wind. Join / Login > 8th > Biology the grain seed is separated from the chaff. This process is called as. Hard The process of loosening the chaff from the grain so as to remove it is called threshing - traditionally done by milling or pounding. Separating remaining loose chaff from the grain is called winnowing - traditionally done by repeatedly tossing the grain up into a light wind which gradually blows the lighter chaff away Winnowing is the process of removing chaff from grain. grain. The heavier grain keeps falling to a collection vessel and the chaff is blown to the side

Wind winnowing is an agricultural method developed by ancient cultures for separating grain from chaff. It is also used to remove hay and chaff or other pests from stored grain Harvested crop is then threshed to separate the grain from its outer covering called chaff. The process of beating out the grain from the chaff is known as threshing Definition of separate the grain from the chaff in the Idioms Dictionary. separate the grain from the chaff phrase. What does separate the grain from the chaff expression mean? or other cereal which are separated from the grain by a process called winnowing. and at the same time to separate the grain from the chaff. Those that make hay. The first step in the process of sifting wheat is to loosen the chaff from the edible grain, which is called threshing. The old-fashioned way to do this is to spread the wheat onto a floor made from stone, concrete or tamped earth and to beat it with a flail Wind winnowing is an agricultural method developed by ancient cultures for separating grain from chaff. It is also used to remove hay and chaff or other pests from stored grain. Threshing, the loosening of grain or seeds from the husks and straw, is the step in the chaff-removal process that comes before winnowing

It comes from the age-old practice of literally separating wheat from chaff. When winnowing grain, farmers wanted to remove all chaff from wheat. In the literal meaning, chaff is the husk around a seed, which one does not eat. In order to eat the wheat, one must remove the chaff Threshing is the process in which stems of wheat or paddy are beaten to separate grains from the stems and from the chaff that cover the grains. Stalks or stems of crop plants and the chaff are soft material whereas the grains themselves are very hard The process of separating grain from chaff is called threshing. 1 in the harvested crop grain seeds need to be separated from the chaff. the process of separating the grain seed from the harvested crop is called thresing. 0 the process of removing gram from the hay is known as threshring. Separating remaining loose chaff from the grain is called winnowing - traditionally done by repeatedly tossing the grain up into a light wind which gradually blows the lighter chaff away. Domesticated grains such as durum wheat and common wheat have been bred to have chaff that is easily removed

Name the process in which grains are separated from chaff

Threshing, also spelled thrashing, is the process used to separate the chaff, the protective covering around the grain, and the kernel of grain we use for food, from a plant's stalk. During the nineteenth century, farmers used a variety of methods to remove the chaff and grain from the stalk and to crack open the chaff. The process of separating grain from chaff and hay with the help of wind is called winnowing. Winnowing method is based on the difference between the weights of the solid particles. The process of separation of grains from husk and hay with the help of wind is called winnowing. Farmers use this method for separating the grains from husk and hay. The process developed by ancient cultures to remove chaff from grain is called winnowing. It is mainly used by farmers Threshing is the process of loosening the edible part of grain (or other crop) from the husks and straw to which it is attached. It is the step in grain preparation after reaping and before winnowing, which separates the grain from the chaff. Hand threshing was laborious, with a bushel of wheat taking about an hour In this process, the chaff that has been separated from the grain is removed entirely. The manual way of doing this is to toss the chaff and grain up into a light breeze. The wind blows the light chaff away, and the heavier grain falls into a waiting dish, tray or basket

The first step in the process of sifting wheat is to loosen the chaff from the edible grain, which is called threshing. The old-fashioned way to do this is to spread the wheat onto a floor made from stone, concrete or tamped earth and to beat it with a flail. This is no longer done in the developed world This process of separation of grain seeds from the chaff is called 'Threshing'. Study with best facilities through live classes, click Science Class 8 for more details. What are Threshing methods. Threshing methods : Threshing can be done manually using a process called 'Winnowing'. Winnowing is based on the principle that chaff being. The process of separating grain from chaff and hay with the help of wind. The removal of anthers from the flowers of a plant to prevent self pollination. The process of transfering the seedlings from the nursery to the main field by hand. Machine used to remove honey from honey comb. The rearing of bees for obtaining honey This Farm Machine is also known as Windrower. Small Grain Crops are converted into a Windrow by Swather. Winnower; This tool separates Grain from Chaff. The process involves separating Heavier Grains from Lighter Chaff using Air as a medium. This Agriculture Method is called Winnowing. Hay Making Equipments; A)Bale Mover. B)Bale Wrappe

Explain the process of harvesting - Biology Q&

  1. More grain falls through into the tank. When the grain tank is full, a tractor with a trailer on the back pulls alongside the combine. The grain is carried up from the tank by an elevator and shoots out of a side pipe (sometimes called the unloader) into the trailer. The unwanted stalks and chaff tumble from the back of the machine
  2. Grain and husk can be separated with the process of decantation. Answer; 1 False, 2 False, The process of separation of grains from husk and hay with the help of wind is called winnowing. Farmers use this method for separating the grains from husk and hay. The process of separating solid constituents of different particle sizes; through.
  3. Grain loss can be known to be a feature of rasp bar touch patterns. Grain loss resulting from cleaning and separation was substantially reduced in the subsequent combing threshing process. The name given to the method of extracting the grain from the chaff is Winnowing. This is the move after a threshing (the method of loosening the chaff)
  4. The process began with a horse-drawn -- and later, tractor-drawn -- binder that would cut the wheat stalks and gather them into bundles. The bundles would be stacked into windrows to dry. Then later all the neighbors would gather with a huge threshing machine that would separate the wheat kernels from the straw stalks

Harvesting Class 8, Crop Production and Managemen

The process of cutting and gathering mature crops from the field with sickle is called harvesting. Methods of Harvesting The different methods of harvesting are as follows - Threshing. It is the process of separating grain from hay. Winnowing. It is the process of separating chaff from grains. Storag The cutting and gathering of crop after it is matured is called X. After this, grains are separated from the crop by a process called Y. Z is the process of separating the hay and chaff from the grains Threshing is the process of loosening the edible part of grain (or other crop) from the husks and straw to which it is attached. It is the step in grain preparation after reaping and before winnowing, which separates the grain from the chaff.Threshing does not remove the bran from the grain.. Threshing may be done by beating the grain using a flail on a threshing floor Remaining on the threshing floor was a mixture of grain and the chaff (i.e. the hulls and 'beards'). The grain, of course, now had to be separated from the chaff. The process by which this was accomplished was referred to as winnowing. A winnowing scoop was a large wooden, two-handled scoop constructed with a flat bottom shaped as a cemi. Sweep the large pieces of chaff off the grain and allow the wind to blow the lighter pieces away. Pull the sides of the tarp upward to make a funnel for the grain. Hold the tarp about 2 feet above the bucket and slowly pour the grain. The weight of the grain will help it land directly into the bucket while excess chaff will blow away

'They processed the grain there using a threshing sled to separate the stalks or chaff from the grain.' 'If there are weed seeds, weed debris, chaff or non-grain material, clean the grain before putting it into the bins.' 'They modified farm equipment designed to separate chaff from wheat and used it to remove paper labels from the. The chaff in Jeremiah includes the straw, for in the East everything except the actual grain is generally burnt, and is sometimes used for heating fireplaces (Mishna, 'Sabb.,' 3:1; 'Parah,' 4:3). With unquenchable fire. Unquenchable shows that John is here thinking not of the figure of chaff but of the persons figured by it. But what does the. The reason this piece of equipment is called a combine is simply because it combines several jobs into a single machine. Combines cut the crop and separate the grain from the plant while processing and spreading the remaining material over the field. The invention of the combine was a major moment in human history (with some debate about who.

The process of separation of grain from husk and hay with the help of wind is called winnowing. This method is based on the property that grains are heavier than husk and hay. The farmers drop the mixture of wheat and husk and hay from a height. The lighter husk and hay is carried by the wind and from a heap at a small distance away Winnowing is the process of blowing air into the grain to blow off the chaff and other debris such as dirt before the grain enters the storage tank. As the combine moves along the field, you'll notice a small dust storm flowing behind it. That is the chaff and stems being discarded back onto the field by the combine. The Planter Brenda got permission to shoot this community's Oat Thrashing Day last week, which she says involved around 50 men. These first four photos, however, were shot about a month ago, after the oats were cut, shocked, and left to dry. Threshing is the process of separating the edible part of a grain from the chaff This chaff is eliminated with the straw. You may have heard the Biblical reference to separating the Wheat from the chaff. Now the grain is clean and can be used for feed, seed or flour. Threshing machines were also used for separating just about any seed or kernel such as corn, soybeans, barley, clover and more Chaff, [N] [E] the husk of corn or wheat which was separated from the grain by being thrown into the air, the wind blowing away the chaff, while the grain was saved. The carrying away of chaff by the wind is an ordinary scriptural image of the destruction of the wicked and of their powerlessness to resist Gods judgments

These will be fed into the threshing machine, which combines the process of threshing and winnowing. In the end, we were left with separate mounds of grain and straw, called 'bhus'. Wheat was weighed and packed in sacks to be taken to mandi for sale > Wind winnowing is an agricultural method developed by ancient cultures for separating grain from chaff. It is also used to remove weevils or other pests from stored grain. Threshing, the loosening of grain or seeds from the husks and straw, is. Threshing is the process used to separate the chaff, the protective covering around the grain, and the kernel of grain used for food, from a plant's stalk. Farmers used flails to remove the chaff and grain from the stalk and to crack open the chaff

This chaff is eliminated with the straw. You may have heard the Biblical reference to separating the wheat from the chaff. Now the grain is clean and can be used for feed, seed or flour. Threshing machines were also used for separating just about any seed or kernel such as corn, soybeans, barley, clover and more Winnowing is the process of separating the wheat from the chaff. Since mature wheat is heavier than chaff, the separation is traditionally done by wind power. Thankfully, we were getting some heavy wind when I started winnowing, so some chaff could be quickly removed that way, but we completed a greater portion of the job using a large electric. The screens act to separate grain from chaff, and grain will fall through the screens and most of it will fall into an upstream duct 14 for delivery by an auger 41 into a tank. The remainder of the grain and some chaff will fall into a downstream duct 15 for returning by an auger 42 for rethreshing

Growing wheat in a smaller production scale enables you to thresh and winnow manually. Threshing involves separating the wheat kernels from the stalks after you harvest them from the soil. After you thresh the wheat, you must winnow it. Winnowing involves separating the light chaff from the heavier wheat kernels Chaff (24 Occurrences) Matthew 3:12 His winnowing fork is in his hand, and he will thoroughly cleanse his threshing floor. He will gather his wheat into the barn, but the chaff he will burn up with unquenchable fire. (WEB KJV WEY ASV DBY WBS YLT NAS RSV NIV) Luke 3:17 whose fan is in his hand, and he will thoroughly cleanse his threshing floor, and will gather the wheat into his barn; but he. Chaff (/tʃæf/; also UK: /tʃɑːf/) is the dry, scaly protective casing of the seeds of cereal grains, or similar fine, dry, scaly plant material such as scaly parts of flowers, or finely chopped straw. Chaff is indigestible by humans, but livestock can eat it and in agriculture it is used as livestock fodder, or is a waste material ploughed into the soil or burned

Resources should therefore be found in order to separate the wheat from the chaff, and the list of safe third countries is one of those. europarl.europa.eu Des ressources devraient donc être envisagées afin de trier le bon gr ain de l' ivraie e t la liste des États tiers sûrs en est une The grain collects in a tank inside the combine harvester, while the chaff spurts from a big exit pipe at the back and falls back down onto the field. At the National Museum of Rural Life, East Kilbride we have a significant collection of 20th-century harvesting machines in our large machinery store An agricultural harvesting machine for removing and separating grain from harvested crop has a threshing zone and at least one separation zone for separating the grain. The axial separating rotor is at least partially encased by a separating housing having a plurality of sections. At least one of the sections is displaceable in the axial direction of the at least one axial separating rotor to.

Winnowing - Wikipedi

Search from Chaff Pictures stock photos, pictures and royalty-free images from iStock. Find high-quality stock photos that you won't find anywhere else Chaff [EBD] the refuse of winnowed corn. It was usually burned (Ex. 15:7; Isa. 5:24; Matt. 3:12).This word sometimes, however, means dried grass or hay (Isa. 5:24; 33:11).Chaff is used as a figure of abortive wickedness (Ps. 1:4; Matt. 3:12).False doctrines are also called chaff (), or more correctly rendered chopped straw.The destruction of the wicked, and their powerlessness, are likened. Chaff Dry, scaly protective casings of the seeds of cereal grain, or similar fine, dry, scaly plant material such as scaly parts of flowers, or finely chopped straw. Indigestible by humans, but livestock can eat it and in agriculture it is used as livestock fodder, or is a waste material ploughed into the soil or burned

Separate the wheat from the chaff - Idioms by The Free

What is the meaning of chaff in the Bible? GotQuestions

  1. Separating the cereal grain from the straw and husks. This can be a manual process, often on a threshing-floor or mat. In modern times, often by using a threshing machine. Winnowing: Separating the cereal grains from the chaff and any pests or weevils; after threshing
  2. Straw is the stalks, chaff and husks of grain. Some animals will eat it, goats probably, they eat everything, but most don't. It also has too low nutritional value for cows and horses to get by. Ironically the straw stack is called Haystack. Making hay should be a separate process, just mark a grassy area for it and set the hay up on stacks to dry
  3. Threshing in simple terms is the act of separating grain (edible) from hulls, stalks, and chaff. (non-edible). Man or animals originally did this by flailing or trampling. The methods have changed considerably to improve speed and efficiency over the years but the end result is the same
  4. The final separation would be done by tossing the grains upon the wind, thereby, finally separating those still with husk and those already edible. The process is called winnowing. Although the threshing floor is an ancient way of processing agricultural produce, it is still very significant in our lives as Christians today
  5. The process of loosening the chaff from the grain so as to remove it is called threshing - traditionally done by milling or pounding. Chaff_sentence_9 Separating remaining loose chaff from the grain is called winnowing - traditionally done by repeatedly tossing the grain up into a light wind which gradually blows the lighter chaff away
  6. Crushing or breaking - breaking down the grain in successive stages to release its component parts; Reduction - progressive rollings and siftings to refine the flour and separate it into various categories, called streams; Cleaning. Wheat received at the mill contains weeds, seeds, chaff, and other foreign material
  7. The thrashing machine, or, in modern spelling, threshing machine, was a machine invented by Scottish mechanical engineer Andrew Meikle for use in agriculture.It was designed (c.1796) for the separation of grain from stalks and husks. (image credit) The 1881 Household Cyclopedia said of this machine, Since the invention of this machine, Mr. Meikle and others have progressively introduced a.

Threshing applies only to grain crops and is the process of separating the seeds from the husks, stalks, etc., commonly known as the chaff. Today, threshing is simply one of the things done by a combine in the field. In days of yore, threshing was done after the harvest as a separate step, usually in winter (when not much else could be done) Grist A quantity of grain to be ground. It refers not only to wheat but also to grains such as oats, corn, rye, barley, etc. Flail A tool that consists of a wooden staff with a short heavy stick swinging from it to beat the harvested grain and separate the kernel from the inedible chaff. Mill A building equipped with machinery

Processing and Eating Wheat HowStuffWork

'bob-tails,' 'chaff-pillers,' etc., as the old open cylinder machines were variously called. These machines were simple affairs which merely threshed the grain out of the straw without doing any separating. All the chaff and grain fell at the rear of the machine where it was afterward cleaned in a fanning mill afte (9) Asked if he meant the split in his party would separate the wheat from the chaff, Huelskamp smiled broadly, and said that was a phrase he often used on his farm, in Kansas. (10) The trick is to filter out the wheat from the chaff, most of which is as Seth describes, all from an intelligent society, namely ours To separate good and healthy seeds from the damaged ones: After threshing, the grains are separated from chaff by the process called as winnowing. In this process, the mixture of grain, hay and chaff is dropped from a height in blowing wind. The heavier seed, fall straight to the ground whereas the chaff and hay are much lighter and are. The tractor dumps the grain cart onto a grain elevator, where it can be moved by conveyor belt to storage such as a grain silo. It helps if you have a separate person driving the truck. The driver can take a shipment of grain back to he storage facility, while you going the harvest. This increases your efficiency

What separates chaff from grain? - AskingLot

Finally the cleaning process is accomplished using air blown on the grain or plant. The plant sits on a screen and air is blown on it forcefully. This separates and blows away lighter bits of plant material, called chaff, which may still be clinging to the grain. The grain then goes into a collecting tank Mix—A combination of hay, silage, grain, supplement, mineral, salt, by-product, salt, vitamin, etc. Hay—A grass, legume, or grass-legume mix. Pasture available for grazing may be also included in this feed type, even though pasture isn't sun-cured harvested forage like hay is. Grain—Includes corn, oats, barley, wheat, rye, and triticale Seeding rates for pasture and hay. For pasture or hay use, only one species should be seeded per field. Warm-season grasses vary in growth characteristics making it difficult to manage mixtures. Seeding rates for pasture and hay are found in Table 2. Table 2 Seeding rate for species planted alone. Big bluestem. 165,000 seeds per poun

The central bay was where wagons entered the barn for unloading. The crops were stored on one or both side bays called mows. The center wagon bay is also where threshing was done. Threshing was the process of separating the usable grain seed from the useless chaff. This role is why the center bay is often called the threshing bay or threshing. 1. the mass of husks, etc, separated from the seeds during threshing. 2. finely cut straw and hay used to feed cattle. 3. something of little worth; rubbish (esp in the phrase separate the wheat from the chaff ) 4. the dry membranous bracts enclosing the flowers of certain composite plants

Wheat is harvested with a giant machine called a combine. It cuts, separates, and cleans grain all at the same time. Before the combine was invented, farmers had to use two separate machines for harvest- a reaper, or binder, to cut the grain and a threshing machine to separate the kernels from the chaff and stems this air current would blow the lighter chaff away. After separation, the cleaned grain would be stored in bins in the third bay of the barn. The farmer also would keep at least some of the grain straw in the side bays, primarily for use as animal bedding.2 Three-bay threshing barns usually are called Eng-lish barns in popular American writing Distilled alcohol from grain is called ethanol. The word in modern usage usually refers to ethanol fuel or biofuel made by distilling corn. Regular gasoline-powered cars can run on gas blended. The rice grain then undergoes the next stages of preparation, and the chaff follows its own personal industrial process. El grano de arroz pasa las elaboraciones sucesivas mientras que, la cascarilla , sigue su propio recorrido industrial By a process called winnowing, the grain was tossed into the air to allow the chaff and dirt to be blown away, leaving only the grain. Threshing is a key part of agriculture that involves removing the seeds or grain from plants from the plant stalk

In 1902, a combine could harvest enough grain in one hour to make 10 loaves of bread. Tractor-drawn, PTO-powered combines were used for a time. These combines used a shaker to separate the grain from the chaff and straw-walkers (grates with small teeth on an eccentric shaft) to eject the straw while retaining the grain Flour is the product made by the gradual and systematic milling of wheat grains, after the separation of impurities and washing until the desired degree of extraction (from 72% to 78%). The proteins contained in the flour defines the types of flour quality and end use. Whole wheat yields more than 72% of white flour and the rest is a byproduct and was later applied to the act of separating out grain by the feet of people or oxen and still later with the use of a flail. [1] A threshing floor is of two main types: 1) a specially flattened outdoor surface, usually circular and paved, [2] or 2) inside a building with a smooth floor of earth, stone or wood where a farmer would thresh the. You can read more about the acorn flour process here, and here is a video that shows how you can make acorn bread. 2. Amaranth. Sometimes called pigweed, amaranth is a large weed that produces stalks that are 4 to 8 inches high and filled with seeds. The grain was a staple food of the Ancient Aztecs

The sweet grass basket was a necessity on the plantation. The art of weaving these baskets were passed down from father to son. The ''fanner was used to separate chaff from the rice on the rice plantation. As African slaves had work in the same agricultural disciplines in Africa, the process of separating the chaff from the rice was familiar to. n chaff The glumes or husks of wheat, oats, or other grain and grasses, especially when separated from the seed by threshing and winnowing.; n chaff Straw cut small for the food of cattle.; n chaff Figuratively, paltry refuse; worthless matter, especially that which is light and apt to be driven by the wind.; n chaff In botany, the scales or bracts which subtend the individual flowers in the.

Chaff - Wikipedi

Dec 28, 2013 - Explore Mary Tinsley's board OLD FARM TOOLS & EQUIPMENT, followed by 234 people on Pinterest. See more ideas about farm tools, old farm, farm tools and equipment Washington grows hay for dairy cows to eat. Hay is grass or other vegetation that is cut, dried and stored to use as called fructose. A medium-sized apple contains 5 grams of fiber, 20% of the daily recommended by cutting the plant then separating the grain from the chaff. Finally the grain gets cleaned, removing debris away from the seeds This week is in Serbia called Kresovi (Fires, Lightnings). In Ireland this week is called Domhnach Crom Dubh, the week of Crom Dubh. This week centers around the 2nd of August, the last day of summer and the first day of Autumn, which is in Serbia known as the day of Thunder god Perun or the day of Triglav, Thundering Sun Ilios, and which is in. buy white flour online. How flour is made Flour is natural This page aims to tell you how flour is made. Flour is a natural product made by milling grains, usually wheat, to release the flour that sits inside

How do you separate grain from chaff? - Answer

Wool production is a year-round process. Proper harvesting techniques are important. Producers should make an effort to prevent contamination of fleeces. Feeders which keep hay and chaff off the backs of sheep should be used. Hay should not be carried or thrown over the sheep. Grain should not be poured over their heads We didn't actually weigh the hay but the amount was small (probably around 2 kg/horse/day). Essentially what you are likely to end up with when you take a thoroughbred directly from the racetrack is a horse whose gut has adapted as best it can to high grain diets and in the process has lost some ability to do well on high forage diets There must be a separation within people between the things that are of God and the things that are of the earth. Mark Hanby, who is a ministry father to some of us, has made this point clearly when he speaks of harvest as being a separation. When grain is harvested there is a separation of the seed from the chaff

In Greece in the 1960s, bread was eaten at almost every meal, as it had been for centuries. A person might eat between 2 to 3 pounds of bread a day, much like present-day Sardinians, a population known for their longevity. The process of transforming wheat in a field to flour for bread is labor-intensive chaff— the husks of grains and grasses that are separated during threshing chute— an inclined channel, as a trough, tube, or shaft, for conveying water, grain, coal, etc., to a lower level combine— a machine that harvests, threshes, and cleans grain while moving over a fiel