direct-acting

[ dih-rekt-ak-ting, dahy- ]

adjective

1. (of a steam pump) having the steam pistons connected directly to the pump pistons without a crankshaft or flywheel.

Word History and Origins

Origin of direct-acting¹

First recorded in 1855–60

Example Sentences

Each engine was reversed by a Brown type of direct-acting steam and hydraulic engine.

From Project Gutenberg

A vastly simpler form of pumping-engine without fly-wheel is the now common “direct-acting steam-pump.”

From Project Gutenberg

In larger vessels, as in yachts, in nearly all cases, the ordinary screw-engine is direct-acting.

From Project Gutenberg

In driers the direct acting engine has many advantages over the belt.

From Project Gutenberg

We may have the engine direct acting as above, or the power may be brought on by belting.

From Project Gutenberg