centering tool (senteringtol)

The Century Dictionary and Cyclopedia · 1897 · p. 1
A tool with a trumpet-shaped mouth into which the end of a shaft may be inserted, and the axis of which is occupied by a drill or punch, which may be driven forward to drill or punch a hole in the exact axial center of the shaft. center-lathe (sen'ter-lāн), п. 1. A lathe in which the work is supported on centers, one, called the front or live center, on the end of the mandrel in the head-stock, and the other, called the back or dead center, on the axis in the tail-stock, the latter being adjustable.-2. A lathe having two posts from which centers project and hold the work. It is driven by a band making one or more turns about it, and secured at its ends to a spring-bar above the lathe and a treadle below it. Also called pole -lathe. center-mold (sen'tèr-mōld), n. A templet used in making circular stucco ornaments. It is pivoted at the center of the proposed figure and swept round over the plastic material, thus forming a figure according to the pattern used. An ornament intended to be placed in the middle or center of something, as of a table, ceiling, or mantelshelf, or between other ornaments. centerpiece (sen'tér-pēs), n. He might have mi ed a centre - piece or a choice wine cooler. Dickens .
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