an f-clamp, also known as a bar clamp or speed clamp, is a type of clamp.the name comes from its 'f' shape. the f-clamp is similar to a c-clamp in use, but has a wider opening capacity throat . this tool is used in woodworking while more permanent attachment is being made with screws or glue, or in metalworking to hold pieces together for welding or bolting.
a four-bar linkage, also called a four-bar, is the simplest movable closed-chain linkage.it consists of four bodies, called bars or links, connected in a loop by four joints. generally, the joints are configured so the links move in parallel planes, and the assembly is called a planar four-bar linkage.spherical and spatial four-bar linkages also exist and are used in practice.
klann linkage is a six-bar linkage that forms a leg mechanism; toggle mechanisms are four-bar linkages that are dimensioned so that they can fold and lock. the toggle positions are determined by the colinearity of two of the moving links. the linkage is dimensioned so that the linkage reaches a toggle position just before it folds.
a jackscrew, or screw jack, is a type of jack that is operated by turning a leadscrew.it is commonly used to lift moderately heavy weights, such as vehicles; to raise and lower the horizontal stabilizers of aircraft; and as adjustable supports for heavy loads, such as the foundations of houses. citation needed
clamp クランプ, kuranpu is an all-female japanese manga artist group that formed in the mid-1980s. it consists of leader nanase ohkawa 大川 七瀬, ōkawa nanase , and three artists whose roles shift for each series: mokona もこな, mokona , tsubaki nekoi 猫井 椿, nekoi tsubaki , and satsuki igarashi いがらし 寒月, igarashi satsuki .
a dead bolt, deadbolt or dead lock is a locking mechanism distinct from a spring bolt lock because a deadbolt cannot be moved to the open position except by rotating the key. the more common spring bolt lock uses a spring to hold the bolt in place, allowing retraction by applying force to the bolt itself. a deadbolt can therefore make a door more resistant to entry without the correct key.
a dead man's switch for other names, see alternative names is a switch that is designed to be activated or deactivated if the human operator becomes incapacitated, such as through death, loss of consciousness, or being bodily removed from control.originally applied to switches on a vehicle or machine, it has since come to be used to describe other intangible uses like in computer software.
at the age of 18, grennan was mugged by a group of strangers on the street and was left with four metal plates and screws in his jaw that 'still hurt when winter comes'. 2 3 he trained to become a professional footballer .
a clamp is a fastening device used to hold or secure objects tightly together to prevent movement or separation through the application of inward pressure.in the united kingdom and australia, the term cramp is often used instead when the tool is for temporary use for positioning components during construction and woodworking; thus a g cramp or a sash cramp but a wheel clamp or a surgical clamp.
wild kratts is an american/canadian educational children's live-action/animated series created by chris and martin kratt.the kratt brothers company and 9 story media group produce the show, which is presented by pbs in the united states.the show's aim is to educate children about biology, zoology, and ecology, and teach kids small ways to make big impacts.
village pump technical archive ; this page contains discussions that have been archived from village pump technical .please do not edit the contents of this page. if you wish to revive any of these discussions, either start a new thread or use the talk page associated with that topic.
self-centering three-jaw chuck and key with one jaw removed and inverted showing the teeth that engage in the scroll plate. the scroll plate is rotated within the chuck body by the key, the scroll engages the teeth on the underside of the jaws which moves the three jaws in unison, to tighten or release the workpiece.
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