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Georges Creek Coal And Iron Company
The Georges Creek Coal and Iron Company is a defunct coal mining, iron producer and railroad company that operated in Maryland from 1835 to 1863. Iron furnace The company was formed in 1835, and chartered in the state of Maryland on March 29, 1836. The president was John Henry Alexander, who also happened to be the Maryland State Engineer. Between 1837 and 1839, the company built an iron furnace in Lonaconing, Maryland. The furnace, fueled by coke, went into blast in 1839. There was plenty of iron ore, limestone, water, and coal locally, but the major problem the company faced was transporting finished products to market. Production reached 75 tons per week, and local iron needs were quickly satisfied. Some products were shipped out by wagon, including such items as dowels for the walls of the Chesapeake and Ohio Canal (C&O). The adjacent casting house made farming implements, mine car wheels and track, and household utensils. The furnace output was mostly in the form of pig i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coal Mining
Coal mining is the process of extracting coal from the ground. Coal is valued for its energy content and since the 1880s has been widely used to generate electricity. Steel and cement industries use coal as a fuel for extraction of iron from iron ore and for cement production. In the United Kingdom and South Africa, a coal mine and its structures are a colliery, a coal mine is called a 'pit', and the above-ground structures are a 'pit head'. In Australia, "colliery" generally refers to an underground coal mine. Coal mining has had many developments in recent years, from the early days of men tunneling, digging and manually extracting the coal on carts to large open-cut and longwall mines. Mining at this scale requires the use of draglines, trucks, conveyors, hydraulic jacks and shearers. The coal mining industry has a long history of significant negative environmental impacts on local ecosystems, health impacts on local communities and workers, and contributes heavily to th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Georgetown (Washington, D
Georgetown or George Town may refer to: Places Africa *George, South Africa, formerly known as Georgetown *Janjanbureh, Gambia, formerly known as Georgetown * Georgetown, Ascension Island, main settlement of the British territory of Ascension Island Asia *Georgetown, Allahabad, India *George Town, Chennai, India *George Town, Penang, capital city of the Malaysian state of Penang Europe *Georgetown, Blaenau Gwent, now part of the town of Tredegar in Wales * Georgetown, Dumfries and Galloway, a location in Dumfries and Galloway, Scotland *Es Castell in Minorca, Spain, originally called Georgetown North and Central America Canada *Georgetown, Alberta * Georgetown, Newfoundland and Labrador *Georgetown, Ontario *Georgetown, Prince Edward Island Caribbean *George Town, Bahamas, a village in Exuma District, Bahamas * George Town, Belize, a village in Stann Creek District, Belize *George Town, Cayman Islands, the capital city on Grand Cayman * Georgetown, Saint Vincent and the Grena ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mount Savage Iron Works
The Mount Savage Iron Works operated from 1837 to 1868 in Mount Savage, Maryland. The ironworks were the largest in the United States in the late 1840s, and the first in the nation to produce heavy rails for construction of railroads. The works were established in an area adjacent to mines for coal, iron ore and fire clay. Facilities included blast furnaces, puddling furnaces, a rolling mill, iron refineries, coke production and brick production. History The Maryland and New York Coal and Iron Company was incorporated in 1837, and it acquired land north of Frostburg, Maryland. The company, led by Samuel Swartwout, a New York land speculator, renamed this area as the town of Mount Savage, and made plans to establish an iron works. After raising funds from investors, the company built two blast furnaces in 1840, using coke as fuel. It built a rolling mill in 1843 specifically to manufacture rails. Production of bridge rails, with an inverted "U"-shape and weighing 42 lb/yd, began i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lumberyard
A lumber yard is a location where lumber and wood-related products used in construction and/or home improvement projects are processed or stored. Some lumber yards offer retail sales to consumers, and some of these may also provide services such as the use of planers, saws and other large machines. Generally, timber yards are locations where raw logs and other wood or forest products are processed and stored. The terms "lumber yard" and "timber yard" are sometimes used interchangeably, and timber yards may include additional aspects that lumber yards encompass, and vice versa. Overview Lumber yards sell products made at lumber mills, where customers pick up products at the yard themselves or request that an order be built and delivered to them by the lumber yard. Lumber yards may also sell wood-plastic composites, such as Trex, any other type of construction material or supplies, and general hardware store items. Lumber yards are the primary resources for contractors and ho ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sawmill
A sawmill (saw mill, saw-mill) or lumber mill is a facility where logs are cut into lumber. Modern sawmills use a motorized saw to cut logs lengthwise to make long pieces, and crosswise to length depending on standard or custom sizes (dimensional lumber). The "portable" sawmill is of simple operation. The log lies flat on a steel bed, and the motorized saw cuts the log horizontally along the length of the bed, by the operator manually pushing the saw. The most basic kind of sawmill consists of a chainsaw and a customized jig ("Alaskan sawmill"), with similar horizontal operation. Before the invention of the sawmill, boards were made in various manual ways, either rived (split) and planed, hewn, or more often hand sawn by two men with a whipsaw, one above and another in a saw pit below. The earliest known mechanical mill is the Hierapolis sawmill, a Roman water-powered stone mill at Hierapolis, Asia Minor dating back to the 3rd century AD. Other water-powered mills followe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Foundries
A foundry is a factory that produces metal castings. Metals are cast into shapes by melting them into a liquid, pouring the metal into a mold, and removing the mold material after the metal has solidified as it cools. The most common metals processed are aluminum and cast iron. However, other metals, such as bronze, brass, steel, magnesium, and zinc, are also used to produce castings in foundries. In this process, parts of desired shapes and sizes can be formed. Foundries are one of the largest contributors to the manufacturing recycling movement, melting and recasting millions of tons of scrap metal every year to create new durable goods. Moreover, many foundries use sand in their molding process. These foundries often use, recondition, and reuse sand, which is another form of recycling. Process In metalworking, casting involves pouring liquid metal into a mold, which contains a hollow cavity of the desired shape, and then allowing it to cool and solidify. The solidified pa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Westernport, Maryland
Westernport, also known as Piedmont is a town in Allegany County, Maryland, United States, along the Georges Creek Valley. It is part of the Cumberland, MD-WV Metropolitan Statistical Area. The population was 1,888 at the 2010 census. History Westernport's first settlement is identified on a French military map dating from 1758. The map is currently on display at École Militaire in Paris. The settlement at that time had no name. By 1774, it was known as Hardscrabble because the rocky soil made planting difficult. Some time in the mid-1790s, the name was changed to Westernport, with the town being the westernmost navigable port on the Potomac River. In the late 18th century and early to mid part of the 19th century, coal and timber was loaded onto flatboats where George's Creek empties into the Potomac, then floated down to near Great Falls, Virginia, where the goods were unloaded, the boats broken up to sell as lumber, with the operators walking back to Westernport. The town ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cumberland, Maryland
Cumberland is a U.S. city in and the county seat of Allegany County, Maryland Maryland ( ) is a state in the Mid-Atlantic region of the United States. It shares borders with Virginia, West Virginia, and the District of Columbia to its south and west; Pennsylvania to its north; and Delaware and the Atlantic Ocean to .... It is the primary city of the Cumberland, MD-WV Metropolitan Statistical Area. At the 2020 United States Census, 2020 census, the city had a population of 19,076. Located on the Potomac River, Cumberland is a regional business and commercial center for Western Maryland and the Potomac Highlands of West Virginia. Historically Cumberland was known as the "Queen City", as it was once the second largest in the state. Because of its strategic location on what became known as the Cumberland Road through the Appalachian Mountains, Appalachians, after the American Revolution it served as a historical outfitting and staging point for westward emigrant trail Human ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rolling
Rolling is a type of motion that combines rotation (commonly, of an axially symmetric object) and translation of that object with respect to a surface (either one or the other moves), such that, if ideal conditions exist, the two are in contact with each other without sliding. Rolling where there is no sliding is referred to as ''pure rolling''. By definition, there is no sliding when there is a frame of reference in which all points of contact on the rolling object have the same velocity as their counterparts on the surface on which the object rolls; in particular, for a frame of reference in which the rolling plane is at rest (see animation), the instantaneous velocity of all the points of contact (e.g., a generating line segment of a cylinder) of the rolling object is zero. In practice, due to small deformations near the contact area, some sliding and energy dissipation occurs. Nevertheless, the resulting rolling resistance is much lower than sliding friction, and thus, roll ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Forge
A forge is a type of hearth used for heating metals, or the workplace (smithy) where such a hearth is located. The forge is used by the smith to heat a piece of metal to a temperature at which it becomes easier to shape by forging, or to the point at which work hardening no longer occurs. The metal (known as the "workpiece") is transported to and from the forge using tongs, which are also used to hold the workpiece on the smithy's anvil while the smith works it with a hammer. Sometimes, such as when hardening steel or cooling the work so that it may be handled with bare hands, the workpiece is transported to the slack tub, which rapidly cools the workpiece in a large body of water. However, depending on the metal type, it may require an oil quench or a salt brine instead; many metals require more than plain water hardening. The slack tub also provides water to control the fire in the forge. Types Coal/coke/charcoal forge A forge typically uses bituminous coal, indu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Baltimore And Ohio Railroad
The Baltimore and Ohio Railroad was the first common carrier railroad and the oldest railroad in the United States, with its first section opening in 1830. Merchants from Baltimore, which had benefited to some extent from the construction of the National Road early in the century, wanted to do business with settlers crossing the Appalachian Mountains. The railroad faced competition from several existing and proposed enterprises, including the Albany-Schenectady Turnpike, built in 1797, the Erie Canal, which opened in 1825, and the Chesapeake and Ohio Canal. At first, the B&O was located entirely in the state of Maryland; its original line extending from the port of Baltimore west to Sandy Hook, Maryland, opened in 1834. There it connected with Harper's Ferry, first by boat, then by the Wager Bridge, across the Potomac River into Virginia, and also with the navigable Shenandoah River. Because of competition with the C&O Canal for trade with coal fields in western Maryland, t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tuyere
A tuyere or tuyère (; ) is a tube, nozzle or pipe through which air is blown into a furnace or hearth.W. K. V. Gale, The iron and Steel industry: a dictionary of terms (David and Charles, Newton Abbot 1972), 216–217. Air or oxygen is injected into a hearth under pressure from bellows or a blowing engine or other devices. This causes the fire to be hotter in front of the blast than it would otherwise have been, enabling metals to be smelted or melted or made hot enough to be worked in a forge, though these are blown only with air. This applies to any process where a blast is delivered under pressure to make a fire hotter. The term (like many technical terms relating to ironmaking) was introduced to England from French with the new technology of the blast furnace and finery forge in around 1500, and was sometimes anglicised as tue-iron or tue iron. Following the introduction of hot blast, tuyeres are often water-cooled. Examples * A bloomery normally had one tuyere. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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