parallel motion

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noun

a mechanism arranged so as to impart rectilinear motion to a rod connected to a lever that moves through an arc.

Origin of parallel motion

First recorded in 1820–30
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for parallel motion

  • I contrived a sectional model of a complete condensing steam-engine of the beam and parallel-motion construction.

    Stories of Invention|Edward E. Hale
  • This form was objectionable, as the whole effort of the engine was transmitted through the parallel-motion rods.