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slide valve

noun

, Machinery.
  1. a valve that slides without lifting to open or close an aperture, as the valves of the ports in the cylinders of certain steam engines.


slide valve

noun

  1. a valve that slides across an aperture to expose the port or opening
  2. modifier fitted with slide valves

    a slide-valve engine

“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012


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Word History and Origins

Origin of slide valve1

First recorded in 1795–1805
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Example Sentences

As for the slide valve, t, its arrangement may be distinguished in section in Fig. 2.

Daniel Copeland was probably the first to adopt a slide-valve working with a lap to secure the expansion of steam.

The lap of a slide valve is the distance it extends over the edges of the ports when it is at the middle of its travel.

The locomotive link reverse is used, with a plain slide valve.

The steam is admitted to the cylinder by means of a slide-valve.

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