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jackscrew

jackscrew

1 9.3
A device that uses a screw to lift or move heavy things
  • noun
  • /ˈdʒæksˌkru/
  • Specialized
translation icon : gato de tornillo
  • The mechanic used a jackscrew to lift the heavy engine during the repair.

Examples

  • Features include shell-recess areas for solder washout and inspection; stainless steel 10 to 80 jackscrew, and insert options for contact sizes 9 to 69.

    Academic text (2004)
  • This is the jackscrew on the tail assembly that articulates the horizontal stabilizer, also known as the elevator.

  • The thread failure was caused by excessive wear resulting from Alaska Airlines' insufficient lubrication of the jackscrew assembly.

    Blog text (19)
  • Our investigators have concluded that the jackscrew snapped and the elevator was frozen in a fixed position, locking the elevator in a down position, which forced the plane into a dive.

  • The stated probable cause was "a loss of airplane pitch control resulting from the in-flight failure of the horizontal stabilizer trim system jackscrew assembly's acme nut threads."

    Blog text (19)
  • In the aircraft, the jackscrew is essential for adjusting the position of the stabilizer.

  • The jackscrew allowed the technician to raise the heavy machinery with ease.

Synonyms

jack
vsjackscrew
27 4.8

A tool that lifts a car so you can change a tire

relies on a screw mechanism rather than general force or pressure
screw jack
vsjackscrew
  • Specialized
5.6

A tool that lifts heavy things by turning a screw, often used to raise a car

has identical meaning and focus on screw based mechanical lifting

Surface Forms

jackscrew singular
jackscrews plural

Morphology

jackscrew = jack + screw (transparent) = jack + screw

The word is a straightforward compound of 'jack' and 'screw' referring to a screw-based lifting device, so its meaning is derivable from the parts.

Etymology

Jackscrew comes from joining jack and screw: jack is a tool used to 'lift' heavy things, like a car jack, and screw is a piece with a spiral that you turn. So, a jackscrew is a jack that works by turning a big screw to raise, lower, or move a heavy load.