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ratchet |
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ratchetMechanical device that transmits intermittent motion or permits a shaft to rotate in one direction but not in the opposite one. Reversible ratchets are used on socket wrench handles and are convenient for tightening or loosening bolts in positions where a complete revolution of a wrench handle is impossible. They are used in mechanical jacks to lock the jack rod after each successive lift. ratchet 1. a device in which a toothed rack or wheel is engaged by a pawl to permit motion in one direction only 2. the toothed rack or wheel forming part of such a device ratchet [′rach·ət] (design engineering) A wheel, usually toothed, operating with a catch or a pawl so as to rotate in only a single direction. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| And she urged lawmakers to ratchet down spending amid a sluggish economy that's not expected to rebound for several years. reason: So what's the most effective way to ratchet down the fear--and the policies and the spending? While the Retirement Red Zone[SM] is no time to take the risks of someone with a very long time horizon, it also is not a good idea to dramatically ratchet down risk, not only because people spend so much time in retirement, but also because a comfortable level of risk should not be discounted purely for tradition's sake. |
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