NASA NTRS · 19810018786
Telescoping columns
Abstract
An extendable column is described which consists of several axially elongated rigid structural sections nested within one another. Each section includes a number of rotatably attached screws running along its length. The next inner section includes threaded lugs oriented to threadingly engage the screws. The column is extended or retracted upon rotation of the screws. The screws of each section are selectively rotated by a motor and an engagement mechanism.
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Mazur, J. T.. 1980-12-16. Telescoping columns. https://ntrs.nasa.gov/citations/19810018786
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