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screw jack
screw jack
noun
Also called: jackscrew. jack. a lifting device utilizing the mechanical advantage of a screw thread, the effort being applied through a bevel drive
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Word History and Origins
Origin of screw jack1
First recorded in 1710–20
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Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
They include a screw jack manufacturer in Ohio and a home health care business in Michigan.
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The forward end of each section was supported by a screw jack placed under a rib 2 ft. from the front end.
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The shells of the molds were of ¼-in. steel plate; the jack was an ordinary screw jack.
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Between these guide posts set plunger posts which were raised and lowered by screw jacks.
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