|Scientific Medical & Mechanical Antiques|
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The Rogers Patented GrinderAn economical dual bevel grinding machine was patented Oct 4, 1892, by John Rogers, of Elkhart, Indiana. He marketed his invention by mail order. This illustration is from his ad in the Gentleman Farmer.
Sickle GrinderA grinder for use on the harvester, without removing the knife, was patented by Francis Ogle and Cyrus Fields, of Marceline, Missouri, on Jan 16, 1894.
The Racine GrinderAdvertised in the 1891 catalog of Whitman & Barnes for $8 each.
The Perfect GrinderThis grinder, using a 50 pound beveled stone instead of an emery wheel, was cheaper than the above grinder in the same 1891 catalog.
The Dollar Mower Knife SharpenerA hand held device used like a file.
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