|
Skyline Logging
Skyline logging (or skyline yarding) is a form of cable logging in which harvested logs are transported on a suspended steel cable (a cableway or "highline") from where the trees are felled to a central processing location. The skyline's cable loop runs around a drive pulley, generally at the central delivery end, and the return pulley at the collection end; the collection-end pulley may be moved radially to other locations within the constraints of the system, and may operate over large areas. Individual logs are attached to the suspended cable by means of choker cables and carriages. A skyline yarder can pull in 5 to 10 logs at a time, using separate chokers. The pulleys are mounted on towers or cranes, other trees, ridges or, in rare cases, helium balloons. See also * Cable logging High Lead logging in Western Oregon Cable logging, also referred to as skyline logging, is a logging method primarily used on the West Coast of North America with yarder, loaders, an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cable Logging
High Lead logging in Western Oregon Cable logging, also referred to as skyline logging, is a logging method primarily used on the West Coast of North America with yarder, loaders, and grapple yarders, but also in Europe (Austria, Switzerland, Czech Republic, France, Italy). The cables can be rigged in several configurations. There are two classes; # High lead logging, in which a simple loop of cable runs from the yarder out through pulley blocks anchored to stumps at the far end of the cut. # Skyline, in which a carriage, pulled by hauling cables, runs along a skyline cable, providing vertical lift to the logs. There are other varieties of loading systems as well. While skyline logging requires additional setup, the vertical lift of the skyline allows faster yarding, which can outweigh the additional labor costs, especially on larger harvest units. Since the 1980s grapple yarders have become popular. Skyline and grapple yarding, however, require more complex, and expe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trunk (botany)
In botany, the trunk (or bole) is the stem and main wooden axis of a tree, which is an important feature in tree identification, and which often differs markedly from the bottom of the trunk to the top, depending on the species. The trunk is the most important part of the tree for timber production. Occurrence Trunks occur both in "true" woody plants and non-woody plants such as palms and other monocots, though the internal physiology is different in each case. In all plants, trunks thicken over time due to the formation of secondary growth (or in monocots, pseudo-secondary growth). Trunks can be vulnerable to damage, including sunburn. Vocabulary Trunks which are cut down for making lumber are generally called logs; if they are cut to a specific length, called bolts. The term "log" is informally used in English to describe any felled trunk not rooted in the ground, whose roots are detached. A stump is the part of a trunk remaining in the ground after the tree has been f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cableway
Cable transport is a broad class of transport modes that have cables. They transport passengers and goods, often in vehicles called cable cars. The cable may be driven or passive, and items may be moved by pulling, sliding, sailing, or by drives within the object being moved on cableways. The use of pulleys and balancing of loads moving up and down are common elements of cable transport. They are often used in mountainous areas where cable haulage can overcome large differences in elevation. Common modes of cable transport Aerial transport Forms of cable transport in which one or more cables are strung between supports of various forms and cars are suspended from thes cables. * Aerial tramway * Chairlift * Funitel * Gondola lift * Ski lift * Zip line Cable railways Forms of cable transport where cars on rails are hauled by cables. The rails are usually steeply inclined and usually at ground level. * Cable car * Funicular Other Other forms of cable-hauled tran ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cable Logging
High Lead logging in Western Oregon Cable logging, also referred to as skyline logging, is a logging method primarily used on the West Coast of North America with yarder, loaders, and grapple yarders, but also in Europe (Austria, Switzerland, Czech Republic, France, Italy). The cables can be rigged in several configurations. There are two classes; # High lead logging, in which a simple loop of cable runs from the yarder out through pulley blocks anchored to stumps at the far end of the cut. # Skyline, in which a carriage, pulled by hauling cables, runs along a skyline cable, providing vertical lift to the logs. There are other varieties of loading systems as well. While skyline logging requires additional setup, the vertical lift of the skyline allows faster yarding, which can outweigh the additional labor costs, especially on larger harvest units. Since the 1980s grapple yarders have become popular. Skyline and grapple yarding, however, require more complex, and expe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Log Transport
Log most often refers to: * Trunk (botany), the stem and main wooden axis of a tree, called logs when cut ** Logging, cutting down trees for logs ** Firewood, logs used for fuel ** Lumber or timber, converted from wood logs * Logarithm, in mathematics Log, LOG or LoG may also refer to: Arts, entertainment and media * ''Log'' (magazine), an architectural magazine * ''The Log'', a boating and fishing newspaper published by the Duncan McIntosh Company * Lamb of God (band) or LoG, an American metal band * The Log, an electric guitar by Les Paul * Log, a fictional product in ''The Ren & Stimpy Show'' * The League of Gentlemen or LoG, a British comedy show. Places * Log, Russia, the name of several places * Log, Slovenia, the name of several places Science and mathematics *Logarithm, a mathematical function * Log file, a computer file in which events are recorded * Laplacian of Gaussian or LoG, an algorithm used in digital image processing Other uses * Logbook A logbook (or l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
