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Manufacturers Index - William H. Field 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
49,367 Aug. 15, 1865 Improvement in the manufacture of felted yarns John H. Bloodgood New York, NY William H. Field witnessed the signature of J. H. Bloodgood. Field went on to found woodworking maker and retailer Wm. H. Field Co.
    Improvement in the manufacture of felted yarns Moses A. Johnson Lowell, MA  
447,812 Mar. 10, 1891 Power-feed sawing-machine William J. Edwards Chicago, IL
564,587 Jul. 28, 1896 Sandpapering-machine Walter Black Chicago, IL This machine was sold as the "Pioneer Moulding Sander", and was shown in the 1920 edition of the William H. Field Co. catalog.
919,351 Apr. 27, 1909 Jointer John Herzog Saginaw, MI The "Herzog Safety Automatic Jointer Feeder" is illustrated in the 1920 catalog of Wm. H. Field Co. See also patent 1,653,916.
2,353,956 Jul. 18, 1944 Grinding apparatus Lewis W. Enholm Wollaston, MA
2,725,690 Dec. 06, 1955 Cutter grinding mandrel with tooth rest Warren F. French Brockton, MA Of interest because the assignee was a major retailer (and possibly manufacturer) of woodworking machinery.
"The invention has to do with the grinding and sharpening of circular cutters of various types such as, for example, plain mills, straddle mills, side mills, and other similar forms of rotary cutting tools, and contemplates supporting means for a cutter of the above-mentioned types to be ground or sharpened combined with an adjustable tooth rest for positioning under the cutter tooth being sharpened whereby each tooth of the cutter will be supported in succession by the tooth rest and held in such fixed position with relation to the centerline of the cutter and the centerline of the grinding wheel that all the cutter teeth will be ground accurately and precisely concentric with the bore of the cutter, and with the proper clearance angles, bevel angles and land during the sharpening of the cutter by a grinding wheel of either the ordinary cylindrical type or by one of cup shape."
2,754,634 Jul. 17, 1956 Tooth rests for cutter grinders Warren F. French Brockton, MA
2,787,094 Apr. 02, 1957 Cutter grinders Warren F. French Brockton, MA
3,073,076 Jan. 15, 1963 Radius cutter grinding machine Warren F. French Brockton, MA Of interest because the assignee was a retailer, and possibly manufacturer, of woodworking machinery, and this is the last patent that was assigned to them.