Screw-thread sentence example

screw-thread
  • A coarse screw-thread is formed in the upper part of the inner cup, and this screws on to the end of the iron bolt by which it is supported.
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  • Each control is operated via a large knurled knob which turns a screw thread to effect motion.
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  • Some flat bits have a screw thread instead of the center point and this helps the drill pull itself through the timber.
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  • The deep spiral groove means that waste is removed quickly and the center screw thread helps the drill to pull itself into the material.
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  • As the glass cylinder, driven by a motor, revolves upon its axis while also advancing (by means of a screw thread on the axis), all portions of the picture are successively brought under the beam or pencil of light and cause a beam of varying intensity to fall on the selenium cell.
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  • The outside of the cylinder was cooled by water circulating round a spiral screw thread in a narrow space with high velocity driven by a pressure of 120 lb per sq.
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