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A hydraulic drum throne is simply a feature that is built into any type of drum throne that allows the drummer to adjust the seat height on the fly using a hydraulic cylinder built into the stool. The mechanics are similar to an office chair that you would find at any desk, however the components are heavier duty. How it works is the drummer can take his body weight off the seat, lift a lever, and the seat rises up. To lower the level, he simply lifts the lever with his body weight still on the seat. The advantage of the hydraulic drum throne is that a drummer can adjust his seat height mid show. Compared to the traditional drum stool which requires manually "screwing" the sear down, or adjusting a pipe clamp beneath the cushion, hydraulic drum thrones offer tremendous convenience to professional drummers.
Read more: http://www.infobarrel.com/Hydraulic_Drum_Throne#ixzz1sxpqUPlT
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What is the purpose of the case drain on an hydraulic motor?
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How can find the tonnage of mechanical press machine?
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Where can you find a profile on Adam Scott?
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