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lantern wheel

noun
  1. a wheel, used like a pinion, consisting essentially of two parallel disks or heads whose peripheries are connected by a series of bars that engage with the teeth of another wheel.
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Origin of lantern wheel

First recorded in 1785–95
Also called lantern pinion, trundle.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for lantern pinion

lantern pinion

lantern wheel

noun
  1. a type of gearwheel, now used only in clocks, consisting of two parallel circular discs connected by a number of pins running parallel to the axis
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012