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Endless screw

Definitions

  • Webster's Revised Unabridged Dictionary
    • Endless screw (Mech) See under Screw.
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Chambers's Twentieth Century Dictionary
    • Endless screw an arrangement for producing slow motion in machinery, consisting of a screw whose thread gears into a wheel with skew teeth
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Etymology

Chambers's Twentieth Century Dictionary
A.S. ende; cf. Ger. and Dan. ende, Goth. andeis; Sans. ánta.

Usage

In literature:

First, it included the endless screw working into a toothed-wheel, for boring steam-cylinders, which is still in use.
"Men of Invention and Industry" by Samuel Smiles
By means of an endless screw, the crystal can be turned ninety degrees round.
"Six Lectures on Light" by John Tyndall
Upon the axis of this cam there is keyed a gear wheel, with an endless screw, which permits of regulating it by hand.
"Scientific American Supplement, No. 421, January 26, 1884" by Various
Among these are the endless screw, the screw pump, a hydraulic organ, and burning mirrors.
"History of the Intellectual Development of Europe, Volume I (of 2)" by John William Draper
The men haul the endless rope and so the screwing is done.
"Scamping Tricks and Odd Knowledge" by John Newman
The endless screw is placed in gear with a train of wheels and pinions.
"A Treatise on Meteorological Instruments" by Henry Negretti
Of these the best known are the block and tackle, the endless screw (worm gear), and the water snail, or Archimedean screw.
"The Story of Great Inventions" by Elmer Ellsworth Burns
His name is associated with the endless screw.
"An Introduction to the History of Science" by Walter Libby
The cross-arms are fixed upon a vertical axis having an endless screw at its lower end.
"Practical Exercises in Elementary Meteorology" by Robert DeCourcy Ward
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In news:

Screw the endless, day-to-day, nonsweetened, nonfat, drip-coffee, triple-shot Americano routine.
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In science:

The step-by-step linear displacement of the cat’s eyes is realized from the rotation of a space-qualified endless screw with a 0.5 mm pitch, of 20 mm diameter, mounted in parallel to the optical axis of the cat’s eyes, and a nut with planetary rollers.
The Molecular Hydrogen Explorer H2EX
At the right side, the endless screw (20 mm diameter, pitch 0.5 mm) to move the parallelogram.
The Molecular Hydrogen Explorer H2EX
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