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A Stockbridge damper is a tuned mass damper used to suppress wind-induced vibrations on slender structures such as overhead power lines, [1] long cantilevered signs [2] and cable-stayed bridges. The dumbbell -shaped device consists of two masses at the ends of a short length of cable or flexible rod, which is clamped at its middle to the main ...
The terms "Allen wrench" (American English) and "Allen key" (British English) [3] are derived from the Allen brand name and refer to the generic product category "hex keys". W.G. Allen [ 4 ] filed the first related patent in 1909 for its recessed hex-driven safety screws, [ 5 ] a safety improvement over fasteners which protruded from machinery.
Allen-Bradley is the brand-name of a line of factory automation equipment owned by Rockwell Automation.The company, with revenues of approximately US $6.4 billion in 2013, manufactures programmable logic controllers (), human-machine interfaces, sensors, safety components and systems, software, drives and drive systems, contactors, motor control centers, and systems of such products.
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Damper (flow) Opposed blade dampers in a mixing duct. A damper is a valve or plate that stops or regulates the flow of air inside a duct, chimney, VAV box, air handler, or other air-handling equipment. A damper may be used to cut off central air conditioning (heating or cooling) to an unused room, or to regulate it for room-by-room temperature ...
As summer begins to wind down, most children and teenagers across the U.S. are getting ready to head back to school. Not far behind the start of the school year is the typical start of the season ...
Using a fork, knife, or spoon at your next meal. Using your computer mouse. Writing. These exercises take something you already know how to do and put them in a new and demanding context. Doing ...
An average annual salary of $27.5 million ranks seventh at the position. Moore, 27, ... Allen grabbed 108 receptions last season for 1,243 yards and seven touchdowns. He is set to be paid $18.1 ...