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

Word History and Origins

Origin of slide valve¹

First recorded in 1795–1805

Example Sentences

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

From Project Gutenberg

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

From Project Gutenberg

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.

From Project Gutenberg

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

From Project Gutenberg

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

From Project Gutenberg