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parallel ruler

British  

noun

  1. engineering a drawing instrument in which two parallel edges are connected so that they remain parallel, although the distance between them can be varied

"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

Example Sentences

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The exercises were growing more complex and difficult: navigation by leg dividers and a parallel ruler; docking in 30 mph wind; sailing around an entire island; trying to rescue Mick’s hat, which blew overboard.

From Washington Post • Sep. 6, 2017

One small compact case of good sector-jointed, drawing instruments with ivory parallel ruler: 3 pounds 3 shillings.

From Successful Exploration Through the Interior of Australia by Wills, William John

The master took his parallel ruler and did so.

From The Congo Rovers A Story of the Slave Squadron by Schonberg, J.

The lieutenant followed him, and stood watching as the master again manipulated his parallel ruler and dividers.

From The Pirate Slaver A Story of the West African Coast by Overend, William Heysham

Mr. Spokesly laid the parallel ruler against the line and produced it clear across the chart.

From Command by McFee, William

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