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Crowbars
A crowbar, also called a wrecking bar, pry bar or prybar, pinch-bar, or occasionally a prise bar or prisebar, colloquially gooseneck, or pig bar, or in Australia a jemmy, is a lever consisting of a metal bar with a single curved end and flattened points, used to force two objects apart or gain mechanical advantage in lifting; often the curved end has a notch for removing nails. The design can be used as any of the three lever classes. The curved end is usually used as a first-class lever, and the flat end as a second-class lever. Designs made from thick flat steel bar are often referred to as utility bars. Materials and construction A common hand tool, the crow bar is typically made of medium-carbon steel, possibly hardened on its ends. Commonly crowbars are forged from long steel stock, either hexagonal or sometimes cylindrical. Alternative designs may be forged with a rounded I-shaped cross-section shaft. Versions using relatively wide flat steel bar are often referr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Digging Bar
A digging bar is a long, straight metal bar used for various purposes, including as a post hole digger, to break up or loosen hard or compacted materials such as soil, rock, concrete and ice or as a lever#First class levers, lever to move objects. Known by other names depending on locale, structural features and intended purpose such as a hop bar or crowbar in Britain, Australia and New Zealand, and slate bar, shale bar, spud bar, pinch point bar or San Angelo bar in North America, or just a bar. In Canada, it is often called pry bar. In Hawaii, a similar, traditional wooden device known as an ''‘o‘o stick'' is used as a digging bar in groundbreaking ceremonies. Not to be confused with a curved Crowbar (tool), crowbar, which is designed to provide leverage rather than to dig. Uses Common uses of digging bars include breaking up clay, concrete, frozen ground, and other hard materials, moving or breaking up tree roots and obstacles, and making holes in the ground for fence p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Standard Crowbar Black
Standard may refer to: Symbols * Colours, standards and guidons, kinds of military signs * Heraldic flag, Standard (emblem), a type of a large symbol or emblem used for identification Norms, conventions or requirements * Standard (metrology), an object that bears a defined relationship to a unit of measure used for calibration of measuring devices * Standard (timber unit), an obsolete measure of timber used in trade * Breed standard (also called bench standard), in animal fancy and animal husbandry * BioCompute Object, BioCompute Standard, a standard for next generation sequencing * De facto standard, ''De facto'' standard, product or system with market dominance * Gold standard, a monetary system based on gold; also used metaphorically for the best of several options, against which the others are measured * Internet Standard, a specification ratified as an open standard by the Internet Engineering Task Force * Learning standards, standards applied to education content * Stand ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Romeo And Juliet
''The Tragedy of Romeo and Juliet'', often shortened to ''Romeo and Juliet'', is a Shakespearean tragedy, tragedy written by William Shakespeare about the romance between two young Italians from feuding families. It was among Shakespeare's most popular plays during his lifetime and, along with ''Hamlet'', is one of his most frequently performed. Today, the Title character, title characters are regarded as Archetype, archetypal young lovers. ''Romeo and Juliet'' belongs to a tradition of tragic Romance (love), romances stretching back to Ancient history, antiquity. The plot is based on an Italian tale written by Matteo Bandello, translated into verse as ''The Tragical History of Romeus and Juliet'' by Arthur Brooke (poet), Arthur Brooke in 1562, and retold in prose in ''Palace of Pleasure'' by William Painter (author), William Painter in 1567. Shakespeare borrowed heavily from both but expanded the plot by developing a number of supporting characters, in particular Mercutio a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hand Tools
A hand tool is any tool that is powered by hand rather than a motor. Categories of hand tools include wrenches, pliers, cutters, files, striking tools, struck or hammered tools, screwdrivers, vises, clamps, snips, hacksaws, drills, and knives. Outdoor tools such as garden forks, pruning shears, and rakes are additional forms of hand tools. Portable power tools are not hand tools. History Hand tools have been used by humans since the Stone Age, when stone tools were used for hammering and cutting. During the Bronze Age, tools were made by casting alloys of copper and tin. Bronze tools were sharper and harder than those made of stone. During the Iron Age iron replaced bronze, and tools became even stronger and more durable. The Romans developed tools during this period which are similar to those being produced today. After the Industrial Revolution, most tools were made in factories rather than by craftspeople. A large collection of British hand tools dating fro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tire Iron
A tire iron (also tire lever or tire spoon) is a specialized metal or plastic tool used in working with tires. Tire irons have not been in common use for automobile tires since the shift to the use of tubeless tires in the late 1950s. Bicycle tire irons are still in use for those tires which have a separate inner tube, and can have a hooked C-shape cut into one end of the iron so that it may be hooked on a bicycle spoke to hold it in place. Description and use Tire irons, which usually come in pairs or threes, are used to pry the edge of a tire away from the rim of the wheel it has been mounted on. After one iron has pried a portion of the tire from its wheel, it is held in position while a second iron is applied further along the tire to pry more of the tire away from the wheel. This allows enough of the tire to be separated so that the first iron can be removed, and used again on the far side of the other iron. Alternating in this way, a person can work all the way arou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Halligan Bar
A Halligan bar (also known as a Halligan tool or Hooligan tool) is a forcible entry tool used by firefighters. History The Halligan bar was designed by New York City Fire Department (FDNY) First Deputy Chief Hugh Halligan in 1948 and was named after him. "Created by Hugh Halligan, allegedly modeled on a burglar's tool found in the rubble of a bank fire during overhaul operations." — New York City Fire Museum That same year, blacksmith Peter Clarke made the first prototype of the tool. "Due to a dispute between the Department and Halligan, the tool was not purchased by the FDNY until the patent expired and the Department was able to buy comparable tools from other vendors. Nonetheless it was widely used; firefighters purchased their own "Halligans" out-of-pocket, a tribute to its effectiveness and dependability. The FDNY now issues a modified Halligan Tool called the "PRO-BAR," manufactured by Fire Hooks Unlimited, for use as the primary forcible entry tool." — New York ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cat's Paw (tool)
A cat's paw with extracting notches on each end. Typical lengths vary between long A cat's paw or cat's claw is a metal hand tool used for extracting nails, typically from wood, using leverage. A standard tool in carpentry, it has a sharp V-shaped tip on one or both ends, which is driven into the wood by a hammer to capture the nailhead. Essentially, it is a smaller, more ergonomic, purpose-designed crowbar. Historically, the cat's paw had a single significantly rounder, more cup-shaped extracting head, giving it its name. Today, the norm is to have the two much narrower and more pointed heads offset 90-degrees (in plane) from one-another (allowing the bar to be pressed fully down when using the tip on the long end without damaging the surface the free end contacts). By the physics of its design the tip on the short end has substantially more leverage, but is not always convenient to be set with a hammer. Tool stock is typically hexagonal, though it may be round or recta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pickaxe
A pickaxe, pick-axe, or pick is a generally T-shaped hand tool used for Leverage (mechanics), prying. Its head is typically metal, attached perpendicularly to a longer handle, traditionally made of wood, occasionally metal, and increasingly fiberglass. A standard pickaxe, similar to a "mattock, pick mattock", has a pointed end on one side of its head and a broad flat "axe" blade opposite. A gradual curve characteristically spans the length of the head. The next most common configuration features two spikes, one slightly longer than the other. The pointed end is used both for breaking and prying, the axe for hoeing, skimming, and chopping through roots. Developed as agricultural tools in prehistoric times, picks have evolved into other tools such as the plough and the mattock. They also have been used in general construction and traditional mining, mining, and adapted to warfare. Etymology The Oxford Dictionary of English states that both ''pick'' and ''pickaxe'' have t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Robinson Crusoe
''Robinson Crusoe'' ( ) is an English adventure novel by Daniel Defoe, first published on 25 April 1719. Written with a combination of Epistolary novel, epistolary, Confessional writing, confessional, and Didacticism, didactic forms, the book follows the title character (born Robinson Kreutznaer) after he is castaway, cast away and spends 28 years on a remote tropical desert island near the coasts of Venezuela and Trinidad, encountering Human cannibalism, cannibals, captives, and mutineers before being rescued. The story has been thought to be based on the life of Alexander Selkirk, a Scottish castaway who lived for four years on a Pacific island called "Más a Tierra" (now part of Chile) which was renamed Robinson Crusoe Island in 1966. Pedro Serrano (sailor), Pedro Serrano is another real-life castaway whose story might have inspired the novel. The first edition credited the work's protagonist Robinson Crusoe as its author, leading many readers to believe he was a real p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Daniel Defoe
Daniel Defoe (; born Daniel Foe; 1660 – 24 April 1731) was an English writer, merchant and spy. He is most famous for his novel ''Robinson Crusoe'', published in 1719, which is claimed to be second only to the Bible in its number of translations. He has been seen as one of the earliest proponents of the English novel, and helped to popularise the form in Britain with others such as Aphra Behn and Samuel Richardson. Defoe wrote many political tracts, was often in trouble with the authorities, and spent a period in prison. Intellectuals and political leaders paid attention to his fresh ideas and sometimes consulted him. Defoe was a prolific and versatile writer, producing more than three hundred works—books, pamphlets, and journals—on diverse topics, including politics, crime, religion, marriage, psychology and the supernatural. He was also a pioneer of business journalism and economic journalism. Early life Daniel Foe was probably born in Fore Street, London, Fore Street ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
William Shakespeare
William Shakespeare ( 23 April 1564 – 23 April 1616) was an English playwright, poet and actor. He is widely regarded as the greatest writer in the English language and the world's pre-eminent dramatist. He is often called England's national poet and the "Bard of River Avon, Warwickshire, Avon" or simply "the Bard". His extant works, including William Shakespeare's collaborations, collaborations, consist of some Shakespeare's plays, 39 plays, Shakespeare's sonnets, 154 sonnets, three long narrative poems and a few other verses, some of uncertain authorship. His plays List of translations of works by William Shakespeare, have been translated into every major modern language, living language and are performed more often than those of any other playwright. Shakespeare remains arguably the most influential writer in the English language, and his works continue to be studied and reinterpreted. Shakespeare was born and raised in Stratford-upon-Avon, Warwickshire. At the age of 18 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lever
A lever is a simple machine consisting of a beam (structure), beam or rigid rod pivoted at a fixed hinge, or '':wikt:fulcrum, fulcrum''. A lever is a rigid body capable of rotating on a point on itself. On the basis of the locations of fulcrum, load, and effort, the lever is divided into Lever#Types of levers, three types. It is one of the six simple machines identified by Renaissance scientists. A lever amplifies an input force to provide a greater output force, which is said to provide leverage, which is mechanical advantage gained in the system, equal to the ratio of the output force to the input force. As such, the lever is a mechanical advantage device, trading off force against movement. Etymology The word "lever" entered English language, English around 1300 from . This sprang from the stem of the verb ''lever'', meaning "to raise". The verb, in turn, goes back to , itself from the adjective ''levis'', meaning "light" (as in "not heavy"). The word's primary origin is the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
