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Manufacturers Index - Detroit Emery Wheel Co.
Patents
This page contains information on patents issued to this manufacturer.

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USPTO = U.S. Patent Office . Images of the actual patent can be viewed on the U.S. Patent Office web site but a special TIFF viewer must be installed with your browser in order properly work. More information on how to configure your computer to view these patents can be found at TIFF image Viewers for Patent Images.
DATAMP = Directory of American Tool And Machinery Patents . A sister site to VintageMachinery.org with information on patents related to machinery and tools. A much easier user interface than the USPTO's for finding information on machinery patents.

Patent Number Date Title Name City Description
201,778 Mar. 26, 1878 Emery Wheel Gilbert Hart Detroit, MI James L. Norris - patent attorney
This grinding wheel was advertised in the 1895 catalog from Charles A. Strelinger of Detroit, MI.
Hart Emery Wheel Co. changed its name to Detroit Emery Wheel Co. about 1878.
Claim:
"It is well known to all users of this class of grinding and polishing wheels that, in order to work them with the best effect and greatest economy, they must be run at high speed; and, when thus used, they are, even when great care and skill are exercised, more or less liable to break and fly off from their exes, as when a breakage occurs the fragments of the wheel are scattered with great violence, frequently fatally wounding the operator and others in the vicinity, and destroying property..."
The invention consisted of a grinding wheel with a web of metal metal wire embedded within it.
251,141 Dec. 20, 1881 Machine for grinding pulleys Frank Morell Simmons Detroit, MI This machine was seen in an 1887 catalog as "The Simmons' Pulley Grinder". The catalog was from the Hart Emery Wheel Co. of Hamilton, Ontario, but the machine in the drawing is labeled with the name of the Detroit Emery Wheel Co.
582,544 May. 11, 1897 Oilstone-box Joseph W. Oliver Detroit, MI Inventor was founder of American Machinery Co. of Grand Rapids, which later became Oliver Machinery Co.
Example seen on ebay. The lid is labeled, "DETROIT EMERY WHEEL CO. / DETROIT, MICH. / OILSTONE BOX. USE KEROSENE ONLY. / OLIVER'S PAT. MAY 11,1897". We have also seen an example labeled, "TWO-FACED TURKISH EMERY OIL STONE, Oliver's Oil Stone Box. Pat. May 11 1897 Style E 8 x 2 x 1 manufactured by "Oliver" Machinery Co., Grand Rapids Mich. U.S.A."
59,359 Mar. 21, 1898 Electrode Gilbert Hart Detroit, MI The inventor was founder of the Detroit Emery Wheel Co.
62,124 Dec. 20, 1898 Storage battery plate connectors Gilbert Hart Detroit, MI
71,002 Apr. 16, 1901 Emery wheel chuck Gilbert Hart Detroit, MI
91,883 Feb. 28, 1905 Grinding wheel Gilbert Hart Detroit, MI
102,411 Dec. 04, 1906 Grinding wheel Gilbert Hart Detroit, MI