screw jack

noun

1. jackscrew.

screw jack

noun

1. a lifting device utilizing the mechanical advantage of a screw thread, the effort being applied through a bevel drive Also calledjackscrewjack

Word History and Origins

Origin of screw jack¹

First recorded in 1710–20

Example Sentences

They include a screw jack manufacturer in Ohio and a home health care business in Michigan.

From New York Times

The shells of the molds were of ¼-in. steel plate; the jack was an ordinary screw jack.

From Project Gutenberg

Between these guide posts set plunger posts which were raised and lowered by screw jacks.

From Project Gutenberg

The forward end of each section was supported by a screw jack placed under a rib 2 ft. from the front end.

From Project Gutenberg