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

Brake pipe air will now be free to flow past the piston to the slide valve chamber and out at "R" to the auxiliary reservoir.

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

The construction of a common slide valve is shown in Fig.

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

The drop valve is now displacing the slide valve as a better form of excluding or admitting steam.

From James Watt by Carnegie, Andrew

In setting the slide valve of an engine having a link motion, there are two distinct operations.

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

When a release of the brake occurs and piston 26 is moved back to its normal position, spring 46 forces graduating stem 59 and slide valve 48 back to release position.

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