rough grindern.
/ˌrʌf ˈɡrʌɪndə/, U.S. /ˌrəf ˈɡraɪndər/ A tool or machine for giving a rough or preliminary grinding to something, or for grinding something into largish pieces.
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society > occupation and work > equipment > machine tool > [noun] > specific tools
hook1680
rough grinder1777
side tool1804
bottom tool1819
broad1846
sweep1847
wobbler1875
knurl1879
cam-cuttera1884
fly-cutter1884
1777 J. Mudge Direct. making Best Composition for Metals Reflecting Telescopes 11 The rough grinder to work off the rough face of the metal.
?1790 J. Imison Curious & Misc. Articles (new ed.) 155 in School of Arts (ed. 2) This tool, or rough-grinder, should be of an elliptical form.
1898 Chem. Trade Jrnl. 4 June 382/1 The raw or burnt material ready for grinding is then crumbled in the rough grinder.
1914 R. H. Grant Manuf. Steel Balls (‘Machinery’ Ref. Bk. No. 116) ii. 22 If the rings were badly worn the balls would come out of the grinder considerably out of true. It was, therefore, necessary to devise a better and quicker process—a rough grinder—for removing the surface of the balls.
1997 Omaha (Nebraska) World Herald (Nexis) 22 Aug. 10 Contents are manually inspected, then fed into a rough grinder. This cuts the meat into 1/2-inch pieces.
This entry has been updated (OED Third Edition, March 2011; most recently modified version published online March 2022).
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n.1777