slide valve

American  

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.

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slide valve British  

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

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Etymology

Origin of slide valve

First recorded in 1795–1805

Example Sentences

Even with increased pressure, this effect will be more appreciable when the area and travel of slide valve are in excess.

From Scientific American, Volume XXXVI., No. 8, February 24, 1877 A Weekly Journal of Practical Information, Art, Science, Mechanics, Chemistry, and Manufactures. by Various

The slide valve nut may have slackened back, thus loosening the slide valve. 7th.

From Modern Machine-Shop Practice, Volumes I and II by Rose, Joshua

Second, because the steam is wire drawn during the time that the slide valve is closing the port to effect the cut off.

From Modern Machine-Shop Practice, Volumes I and II by Rose, Joshua

Relations of Crank and Eccentric The slide valve is usually driven by an eccentric attached to the main shaft.

From Steam Engines Machinery's Reference Series, Number 70 by Anonymous

The straight air brake valve is of the slide valve type.

From The Traveling Engineers' Association To Improve The Locomotive Engine Service of American Railroads by Anonymous