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The taut-line hitch is an adjustable loop knot for use on lines under tension. It is useful when the length of a line will need to be periodically adjusted in order to maintain tension. It is made by tying a rolling hitch around the standing part after passing around an anchor object. Tension is maintained by sliding the hitch to adjust the ...
It will hold fast when loaded, but slip when shock loaded until tension is relieved enough for it to again hold fast. It serves the same purpose as the taut-line hitch, e.g. tensioning a tent's guy line. This knot is also called the adjustable loop [1] and Cawley adjustable hitch. It was conceived 1982 by Canadian climber Robert Chisnall.
Chain tensioner on a single-speed bicycle Belt tensioner on a belt-drive bicycle Hydraulic bolt tensioner Hydraulic Puller-tensioner . A tensioner is a device that applies a force to create or maintain tension. The force may be applied parallel to, as in the case of a hydraulic bolt tensioner, or perpendicular to, as in the case of a spring ...
Diagram showing the (theoretical) 3:1 mechanical advantage of the Trucker's Hitch. In tightening the trucker's hitch, tension can be effectively increased by repeatedly pulling sideways while preventing the tail end from slipping through the loop, and then cinching the knot tighter as the sideways force is released. This is called "sweating a ...
A set screw is often headless and threaded along its entire length, so that it will sit entirely inside that hole; in which case it may be called a grub screw or blind screw. Once fully and firmly screwed into the first object, the projecting tip of the set screw presses hard against the second object, acting like a clamp .
A Patent Drawing of the Original Ram-type Blowout Preventer, by Cameron Iron Works (1922) Blowout preventer diagram showing different types of rams. (a) blind ram (b) pipe ram and (c) shear ram. The ram BOP was invented by James Smither Abercrombie and Harry S. Cameron in 1922, and was brought to market in 1924 by Cameron Iron Works. [3]
Loops must pass through every part and every joint in the assembly. A single vector loop may not pass through the same part or the same joint twice, but it may start and end in the same part. If a vector loop includes exactly the same dimension twice, in opposite directions, the dimension is redundant and must be omitted.
The slider can also have a two-piece hinge assembly attaching the handle to the slider, with the base of the hinge under spring tension and with protruding pins on the bottom that insert between the zipper teeth. To move the zipper, the handle is pulled outward against spring tension, lifting the pins out from between the teeth as the slider moves.
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