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Skidder Tragschlepper WF-trac 0288
A skidder is any type of heavy vehicle used in a logging operation for pulling cut trees out of a forest in a process called "skidding", in which the logs are transported from the cutting site to a landing. There they are loaded onto trucks (or railroad cars or a flume), and sent to the mill. One exception is that in the early days of logging, when distances from the timberline to the mill were shorter, the landing stage was omitted altogether, and the "skidder" would have been used as the main road vehicle, in place of the trucks, railroad, or flume. Modern forms of skidders can pull trees with a cable and winch (''cable skidder''), just like the old steam donkeys, or with a hydraulic grapple either on boom (''grapple skidder'') or on the back of the frame ''(clambunk skidder)''. History Early skidders were pulled by a team of oxen, horses or mules. The driver would straddle the cart over felled logs, where dangling tongs would be positioned to raise the end of the log off ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Old Log Skidder
Old or OLD may refer to: Places *Old, Baranya, Hungary *Old, Northamptonshire, England *Old Street station, a railway and tube station in London (station code OLD) *OLD, IATA code for Old Town Municipal Airport and Seaplane Base, Old Town, Maine, United States People *Old (surname) Music *OLD (band), a grindcore/industrial metal group * ''Old'' (Danny Brown album), a 2013 album by Danny Brown * ''Old'' (Starflyer 59 album), a 2003 album by Starflyer 59 * "Old" (song), a 1995 song by Machine Head *"Old", a 1982 song by Dexys Midnight Runners from ''Too-Rye-Ay'' Other uses * ''Old'' (film), a 2021 American thriller film *''Oxford Latin Dictionary'' *Online dating *Over-Locknut Distance (or Dimension), a measurement of a bicycle wheel and frame See also *Old age *List of people known as the Old *''Old LP'', a 2019 album by That Dog * * *Olde, a list of people with the surname *Olds (other) Olds may refer to: People * The olds, a jocular and irreverent online nick ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lidgerwood
Lidgerwood was a historic American engineering company famous for its boilers, winches, scrapers, hoists and cranes, particularly ones that helped build the Panama Canal. They later built logging yarders and aerial tramway An aerial tramway, aerial tram, sky tram, cable car or aerial cablecar, aerial cableway, ropeway, téléphérique (French), or Seilbahn (German) is a type of aerial lift which uses one or two stationary cables for support, with a third movin ...s, cable cars or ropeways. Lidgerwood winches had at least two specific railroad maintenance uses, and were used by railroad customers to move railroad freight cars into position for loading and unloading (and to move other cars out of the way). As the successor company is still in business it is probable that they continue to be used in the railroad industry for moving cars through current (2013) times. Railroad wheels need to have a specific profile. As the profile wears into degraded shapes their perfor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reforestation
Reforestation is the practice of restoring previously existing forests and woodlands that have been destroyed or damaged. The prior forest destruction might have happened through deforestation, clearcutting or wildfires. Three important purposes of reforestation programs are for harvesting of wood, for climate change mitigation, and for ecosystem and habitat restoration purposes. One method of reforestation is to establish tree plantations, also called plantation forests. They cover about 131 million ha worldwide, which is 3% of the global forest area and 45% of the total area of planted forests. Globally, planted forests increased from 4.1% to 7.0% of the total forest area between 1990 and 2015. Plantation forests made up 280 million ha (hectare) in 2015, an increase of about 40 million ha in the previous ten years. Of the planted forests worldwide, 18% of that area consists of exotic or introduced species while the rest consist of species native to the country where they are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Surface Runoff
Surface runoff (also known as overland flow or terrestrial runoff) is the unconfined flow of water over the ground surface, in contrast to ''channel runoff'' (or ''stream flow''). It occurs when excess rainwater, stormwater, meltwater, or other sources, can no longer sufficiently rapidly infiltrate in the soil. This can occur when the soil is #Saturation excess overland flow, saturated by water to its full capacity, and the rain arrives #Infiltration excess overland flow, more quickly than the soil can absorb it. Surface runoff often occurs because wikt:impervious#Adjective, impervious areas (such as roofs and Road surface, pavement) do not allow water to soak into the ground. Furthermore, runoff can occur either through natural or human-made processes. Surface runoff is a major component of the water cycle. It is the primary agent of Soil erosion#Rainfall and runoff, soil erosion by water. The land area producing runoff that drains to a common point is called a drainage basin. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Topsoil
Topsoil is the upper layer of soil. It has the highest concentration of organic matter and microorganisms and is where most of the Earth's biological soil activity occurs. Description Topsoil is composed of mineral particles and organic matter and usually extends to a depth of 5-10 inches (13–25 cm). Together these make a substrate capable of holding water and air which encourages biological activity. There are generally a high concentration of roots in topsoil since this is where plants obtain most of their vital nutrients. It also plays host to significant bacterial, fungal and entomological activity without which soil quality would degrade and become less suitable for plants. Bacteria and fungi can be essential in facilitating nutrient exchange with plants and in breaking down organic matter into a form that roots can absorb. Insects also play important roles in breaking down material and aerating and rotating the soil. Many species directly contribute to the he ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Skid Row
A skid row, also called skid road, is an impoverished area, typically urban, in English-speaking North America whose inhabitants are mostly poor people " on the skids". This specifically refers to people who are poor or homeless, considered disreputable, downtrodden or forgotten by society. A skid row may be anything from an impoverished urban district to a red-light district to a gathering area for people experiencing homelessness or drug addiction. In general, skid row areas are inhabited or frequented by impoverished individuals and also people who are addicted to drugs. Urban areas considered skid rows are marked by high vagrancy, dilapidated buildings, and drug dens, as well as other features of urban blight. Used figuratively, the phrase may indicate the state of a poor person's life. The term ''skid road'' originally referred to the path along which timber workers skidded logs. Its current sense appears to have originated in the Pacific Northwest. Areas in the United Stat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lumberjack
Lumberjack is a mostly North American term for workers in the logging industry who perform the initial harvesting and transport of trees. The term usually refers to loggers in the era before 1945 in the United States, when trees were felled using hand tools and dragged by oxen to rivers. The work was difficult, dangerous, intermittent, low-paying, and involved living in primitive conditions. However, the men built a traditional culture that celebrated strength, masculinity, confrontation with danger, and resistance to modernization. Term The term lumberjack is of Canadian derivation. The first attested use of the term combining its two components comes from an 1831 letter to the Cobourg, Ontario, ''Star and General Advertiser'' in the following passage: "my misfortunes have been brought upon me chiefly by an incorrigible, though perhaps useful, race of mortals called lumberjacks, whom, however, I would name the Cossacks of Upper Canada, who, having been reared among the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Steering
Steering is the control of the direction of motion or the components that enable its control. Steering is achieved through various arrangements, among them ailerons for airplanes, rudders for boats, cylic tilting of rotors for helicopters, and many more. Aircraft Aircraft flight control systems are normally steered when airborne by the use of ailerons, spoileron, or both to bank the aircraft into a turn; although the rudder can also be used to turn the aircraft, it is usually used to minimize adverse yaw, rather than as a means to directly cause the turn. On the ground, aircraft are generally steered at low speeds by turning the nosewheel or tailwheel (using a tiller or the rudder pedals) or through differential braking, and by the rudder at high speeds. Missiles, airships and large hovercraft are usually steered by a rudder, thrust vectoring, or both. Small sport hovercraft have similar rudders, but steer mostly by the pilot shifting their weight from side to side ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Steel
Steel is an alloy of iron and carbon that demonstrates improved mechanical properties compared to the pure form of iron. Due to steel's high Young's modulus, elastic modulus, Yield (engineering), yield strength, Fracture, fracture strength and low raw material cost, steel is one of the most commonly manufactured materials in the world. Steel is used in structures (as concrete Rebar, reinforcing rods), in Bridge, bridges, infrastructure, Tool, tools, Ship, ships, Train, trains, Car, cars, Bicycle, bicycles, Machine, machines, Home appliance, electrical appliances, furniture, and Weapon, weapons. Iron is always the main element in steel, but other elements are used to produce various grades of steel demonstrating altered material, mechanical, and microstructural properties. Stainless steels, for example, typically contain 18% chromium and exhibit improved corrosion and Redox, oxidation resistance versus its carbon steel counterpart. Under atmospheric pressures, steels generally ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diesel Engine
The diesel engine, named after the German engineer Rudolf Diesel, is an internal combustion engine in which Combustion, ignition of diesel fuel is caused by the elevated temperature of the air in the cylinder due to Mechanics, mechanical Compression (physics), compression; thus, the diesel engine is called a compression-ignition engine (CI engine). This contrasts with engines using spark plug-ignition of the air-fuel mixture, such as a petrol engine (gasoline engine) or a gas engine (using a gaseous fuel like natural gas or liquefied petroleum gas). Introduction Diesel engines work by compressing only air, or air combined with residual combustion gases from the exhaust (known as exhaust gas recirculation, "EGR"). Air is inducted into the chamber during the intake stroke, and compressed during the compression stroke. This increases air temperature inside the Cylinder (engine), cylinder so that atomised diesel fuel injected into the combustion chamber ignites. The torque a dies ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tractor
A tractor is an engineering vehicle specifically designed to deliver a high tractive effort (or torque) at slow speeds, for the purposes of hauling a Trailer (vehicle), trailer or machinery such as that used in agriculture, mining or construction. Most commonly, the term is used to describe a farm vehicle that provides the power and traction to mechanization, mechanize agricultural tasks, especially (and originally) tillage, and now many more. List of agricultural machinery, Agricultural implements may be towed behind or mounted on the tractor, and the tractor may also provide a source of power if the implement is mechanised. Etymology The word ''tractor'' was taken from Latin, being the Agent (grammar), agent noun of ''trahere'' "to pull". The first recorded use of the word meaning "an engine or vehicle for pulling wagons or plows" occurred in 1896, from the earlier term "traction engine, traction motor" (1859). National variations In the United Kingdom, UK, Republic of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Four Wheel Drive
The Four Wheel Drive Auto Company, more often known as Four Wheel Drive (FWD), was a pioneering American company that developed and produced all-wheel drive vehicles. It was founded in 1909 in Clintonville, Wisconsin, as the Badger Four-Wheel Drive Auto Company by Otto Zachow and William Besserdich.Borth, Christy. ''Masters of Mass Production''. Indianapolis, Ind.: Bobbs-Merrill Co., 1945, pp. 210-14. The first production facility was built in 1911 and was designed by architect Wallace W. DeLong of Appleton, Wisconsin. FWD renamed FWD Corporation and its associates Seagrave, Baker Aerialscope, and Almonte Fire Trucks were sold in 2003 to an investment group headed by former American LaFrance executive James Hebe. Today, the Seagrave Fire Apparatus group is a flagship company of ELB Capital Management. History Zachow and Besserdich developed and built their first successful four-wheel drive (4x4) car, the "Battleship", in 1908. Its success led to the founding of the company. " ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
