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There are five major components of a trebuchet: beam, counterweight, frame, guide chute, and sling. After the counterweight drops from a platform on the frame, gravity pulls the counterweight and pivots the beam. Without the counterweight, the beam could not complete the arc that allows the sling to
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rides. In these applications, the expected load multiplied by the distance that load will be spaced from the central support (called the "tipping point") must be equal to the counterweight's mass times its distance from the tipping point in order to prevent over-balancing either side. This distance
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The tower crane (see picture) is a modern form of balance crane that is fixed to the ground. A horizontal boom is balanced asymmetrically across the top of the tower. The long arm carries the lifting gear. The short arm is called the machinery arm; this holds the motors and electronics to operate
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lifts much less of the carriage's weight (specifically, the counterweight is the weight of the carriage plus 40-50% of its rated capacity). The counterweight also increases the ascending acceleration force and decreases the descending acceleration force to reduce the amount of power needed by the
304:: A wind-up mechanical metronome has an adjustable weight and spring mechanism that allows the speed to be adjusted by placement of the weight on the spindle. The tempo speed is decreased by moving the weight to a higher spindle marking or increased by moving it to a lower marking.
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Bellis, Mary; Artist, Was an
Experimental; Director, Film; producer; Creator, Video Game Content; inventors, freelance writer for some 18 years She specialized in writing about; inventions; March 2015, in particular Bellis died in (2019-08-11).
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from the Earth's rotation ensures that the cable remains stretched taut, countering the gravitational pull on the lower sections and thereby allowing the elevator to remain upright. The counterweight itself could assume one of several
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motor. The elevator carriage and the counterweights both have wheels that roll on rails to prevent irregular movement and provide a smoother ride for the passengers.
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A counterweight is also used in many rotating systems to reduce vibrations due to imbalances in the rotating assembly. A typical example is counterweights on
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into space. Many variants have been proposed, but the concept most often refers to an elevator that reaches from the surface of the
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balances or offsets another force, as when two objects of equal weight, power, or influence are acting in opposition to each other.
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In traction (non-hydraulic) elevators, a heavy counterweight counterbalances the load of the elevator carriage, so the
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Equivalent weight that balances a mechanical system
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824:LaserMotive
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152:César Pelli
111:crankshafts
75:load moment
867:Categories
663:In fiction
574:2019-11-05
535:2019-11-05
483:2019-11-05
458:2019-11-05
412:2019-11-05
384:2019-11-05
361:References
328:Drawbridge
257:space dock
105:Crankshaft
653:Economics
530:ThoughtCo
302:Metronome
265:spaceport
123:Desk lamp
94:Trebuchet
544:cite web
380:. Farlex
344:See also
338:Forklift
250:asteroid
192:Elevator
88:Examples
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893:Weights
746:Skyhook
508:28 June
225:surface
70:funfair
781:People
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160:cables
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48:energy
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229:Earth
198:motor
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158:uses
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