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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] [Amazon] |
Catspaw (Tool Nail Puller)
Cat's paw or Catspaw may refer to: * "Cat's paw", an idiom, meaning "the dupe (or unwitting tool) of another", derived from Jean de La Fontaine's fable "The Monkey and the Cat" Arts and entertainment * ''Catspaw'' (rock opera), a 1974 Australian rock musical written by Dorothy Hewett * ''Catspaw'' (TV series), a 1978 Australian series * "Catspaw" (''Star Trek: The Original Series''), a television episode * ''The Cat's-Paw'', a 1934 film with Harold Lloyd * ''Cat's Paw'' (1959 film), a Looney Tunes cartoon * Catspaw (comics), April Dumaka, a superhero character in DC Comics * ''Cat's Paw'' (adventure), for the role-playing game ''Marvel Super Heroes'' * ''Catspaw'', a 1988 science fiction novel by Joan D. Vinge * ''Catspaw'', a 2021 album by Matthew Sweet Nature * Cat's Paw Mussel, one of a few species of ''Epioblasma'' mussels * Catspaw, informal name of some species of the plant '' Anigozanthus'' (Haemodoraceae) * Cat's Paw Nebula or Bear Claw Nebula, common names for NG ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Hand Tool
A hand tool is any tool that is powered manual labour, by hand rather than a motor. Categories of hand tools include wrenches, pliers, cutter (other), cutters, File (tool), files, hammer, striking tools, chisel, struck or hammered tools, screwdriver, screwdrivers, vises, clamp (tool), clamps, snips, hacksaws, drills, and knives. Outdoor tools such as garden forks, pruning shears, and Rake (tool), 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 Ancient Rome, Romans developed tools during this period which are similar to those being produced today. After the Industrial Revolution, most tools ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
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] [Amazon] |
Carpentry
Carpentry is a skilled trade and a craft in which the primary work performed is the cutting, shaping and installation of building materials during the construction of buildings, Shipbuilding, ships, timber bridges, concrete formwork, etc. Carpenters traditionally worked with natural wood and did rougher work such as framing, but today many other materials are also used and sometimes the finer trades of cabinetmaking and furniture building are considered carpentry. In the United States, 98.5% of carpenters are male, and it was the fourth most male-dominated occupation in the country in 1999. In 2006 in the United States, there were about 1.5 million carpentry positions. Carpenters are usually the first tradesmen on a job and the last to leave. Carpenters normally framed post-and-beam buildings until the end of the 19th century; now this old-fashioned carpentry is called timber framing. Carpenters learn this trade by being employed through an apprenticeship training—normally ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Crowbar
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] [Amazon] |
Industrial Revolution
The Industrial Revolution, sometimes divided into the First Industrial Revolution and Second Industrial Revolution, was a transitional period of the global economy toward more widespread, efficient and stable manufacturing processes, succeeding the Second Agricultural Revolution. Beginning in Kingdom of Great Britain, Great Britain around 1760, the Industrial Revolution had spread to continental Europe and the United States by about 1840. This transition included going from craft production, hand production methods to machines; new Chemical industry, chemical manufacturing and Puddling (metallurgy), iron production processes; the increasing use of Hydropower, water power and Steam engine, steam power; the development of machine tools; and rise of the mechanisation, mechanised factory system. Output greatly increased, and the result was an unprecedented rise in population and population growth. The textile industry was the first to use modern production methods, and textiles b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Slide Hammer
A slide hammer is a tool that attaches to an object needing to be pulled and transmits an impact force to the object without striking the object itself. Slide hammers typically consist of a long metal shaft with an attachment point at one end, a heavy weight that can slide along the shaft (mechanical engineering), shaft, and a stop for the weight to impact on the end opposite the attachment point. The inertia of the weight is thus transferred to the shaft, pulling the attached end in the direction the weight had been moving. Slide hammers can be attached to objects in multiple ways including screw threads, hooks, and others. Slide hammers are typically used in automotive repair to pull dents, remove bearing (mechanical), bearings or other parts, and when an object needs to be struck from an inaccessible side. Car thieves have used them by attaching a screw to the end; the screw is then twisted into the ignition lock, allowing the whole assembly to be pulled out and the ignition ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Old-growth Forest
An old-growth forest or primary forest is a forest that has developed over a long period of time without disturbance. Due to this, old-growth forests exhibit unique ecological features. The Food and Agriculture Organization of the United Nations defines primary forests as naturally regenerated forests of native tree species where there are no clearly visible indications of human activity and the ecological processes are not significantly disturbed. One-third (34 percent) of the world's forests are primary forests. Old-growth features include diverse tree-related structures that provide diverse wildlife habitats that increases the biodiversity of the forested ecosystem. Virgin or first-growth forests are old-growth forests that have never been logged. The concept of diverse tree structure includes multi-layered canopies and canopy gaps, greatly varying tree heights and diameters, and diverse tree species and classes and sizes of woody debris., the world has of primary forest ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Denailer
A denailer is a tool for removing nails from lumber to facilitate its reuse. Two types of ''denailer'' are available: * A stationary ''denailer'' is a machine designed for single-purpose use, e.g. pallet A pallet (also called a skid) is a flat transport structure, which supports goods in a stable fashion while being lifted by a forklift, a pallet jack, a Loader (equipment), front loader, a Jack (mechanical), jacking device, or an erect cra ... refurbishing. * A ''portable denailer'' is a hand-held pneumatically-powered tool. It works by driving out the nail from the point end in pieces of nailed lumber which have been pried apart. The process of denailing (removing large numbers of nails from salvaged lumber) is greatly expedited by using this specialized tool. See also * Cat's paw (nail puller), an unpowered tool for removing nails References Forestry tools Recycling {{Tool-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Mechanical Hand Tools
Mechanical may refer to: Machine * Machine (mechanical), a system of mechanisms that shape the actuator input to achieve a specific application of output forces and movement * Mechanical calculator, a device used to perform the basic operations of arithmetic * Mechanical energy, the sum of potential energy and kinetic energy * Mechanical system, a system that manages the power of forces and movements to accomplish a task * Mechanism (engineering), a portion of a mechanical device Other * Mechanical (character), one of several characters in Shakespeare's ''A Midsummer Night's Dream'' * A kind of typeface in the VOX-ATypI classification See also * Machine, especially in opposition to an electronic item * ''Mechanical Animals'', the third full-length studio release by Marilyn Manson * Manufactured or artificial, especially in opposition to a biological or natural component * Automation, using machine decisions and processing instead of human * Mechanization, using machine labor inst ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Woodworking Hand Tools
Woodworking is the skill of making items from wood, and includes cabinetry, furniture making, wood carving, joinery, carpentry, and woodturning. History Along with stone, clay and animal parts, wood was one of the first materials worked by early humans. Microwear analysis of the Mousterian stone tools used by the Neanderthals show that many were used to work wood. The development of civilization was closely tied to the development of increasingly greater degrees of skill in working these materials. Among the earlliest finds of woodworking are shaped sticks displaying notches from Kalambo Falls in southen Africa, dating to around 476,000 years ago. The Clacton spearhead from Clacton-on-Sea, England, dating to around 400,000 years ago,Allington-Jones, L., (2015) ''Archaeological Journal'', 172 (2) 273–296 The Clacton Spear – The Last One Hundred Years the Schöningen spears, from Schöningen (Germany) dating around 300,000 years ago and the Lehringen spear from n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
