dead center

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dead center

n.
The point at the end of each stroke of a moving crank and connecting rod at which the two lie in the same straight line and the turning force applied by the connecting rod is zero. Also called dead point.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.dead center - the position of a crank when it is in line with the connecting rod and not exerting torquedead center - the position of a crank when it is in line with the connecting rod and not exerting torque
spatial relation, position - the spatial property of a place where or way in which something is situated; "the position of the hands on the clock"; "he specified the spatial relations of every piece of furniture on the stage"
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References in periodicals archive ?
The work was performed in a lathe, conveniently accomplished with the back portion of the bolt centered and held in the lathe chuck and the rounded end of the firing pin shoulder centered in the roller bearing lathe center rest.
I chamfered the opposite end of the brass stub to allow easy turning in a lathe center, and spanner wrench holes were added to allow the stub to be loosened from the barrel after machining.
A pattern is placed at the headstock of the lathe center, and the piece is then formed by applying varying amounts of pressure on tools (rollers on long handles) positioned on the rotating pattern.