Wilmarth & Morman Co. - Assigned Patents

Manufacturers Index - Wilmarth & Morman Co.

Wilmarth & Morman Co.
Grand Rapids, MI, U.S.A.
Manufacturer Class: Metal Working Machinery

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
614,092	Nov. 15, 1898	Drill-grinder	Gardner T. Eames	Kalamazoo, MI	Beginning in 1898 the G. T. Eames Co. of Kalamazoo manufactured a drill grinder that closely resembles this patent; the G. T. Eames Co. would eventually become the Atlas Press Co. In addition, this patent date was seen on a drill grinder from Wilmarth & Morman Co., and the grinder appears to match this patent.
615,883	Dec. 13, 1898	Loose Pulley and Means for Attaching Same to Shafts	Arthur W. Nelson	Chicago, Cook County, IL
643,703	Feb. 20, 1900	Drill-grinding machines	Henry P. White	Kalamazoo, MI	This patent date was seen on a drill grinder from Wilmarth & Morman Co. This patent formed the basis of numerous Wilmarth & Morman drill grinder designs, including those of patents 684,890, 697,584, 702,885.nd 743,033.
684,890	Oct. 22, 1901	Drill-grinder	Henry P. White	Kalamazoo, MI	This patent date was seen on a drill grinder from Wilmarth & Morman Co., and since the inventor's patent 684,890 was assigned to that firm, it's safe to say that this is patent was used by them.
691,488	Jan. 21, 1902	Friction-clutch	Corneil Ridderhof	Grand Rapids, MI
697,584	Apr. 15, 1902	Drill-grinding machine	Henry P. White	Kalamazoo, MI
702,885	Jun. 17, 1902	Drill-grinding machine	Corneil Ridderhof	Grand Rapids, MI	Improved drill holder for the drill grinder of patent 643,703.
743,033	Nov. 03, 1903	Drill-grinding machine	Corneil Ridderhof	Grand Rapids, MI	This drill grinder is designed to use the standard flat disc-shaped grinding wheel rather than the more expensive and less common cup-shaped wheel. The design is an evolution of that of patent 643,703.
772,908	Oct. 18, 1904	Flashing device for incandescent electric lamps	Corneil Ridderhof	Grand Rapids, MI
		Flashing device for incandescent electric lamps	Greyson E. Miles	Grand Rapids, MI
829,488	Aug. 28, 1906	Mandrel-press	Corneil Ridderhof	Grand Rapids, MI
1,268,961	Jun. 11, 1918	Grinding Machine	Edwin T. Gorham	Grand Rapids, MI	Moulton & Liverance - patent attorneys
1,295,156	Feb. 25, 1919	Cutter-grinder	Edwin T. Gorham	Grand Rapids, MI
1,339,452	May. 11, 1920	Dressing-tool for grinding-wheels	Edwin T. Gorham	Grand Rapids, MI	This patent date was seen on a Yankee drill grinder from Covel Mfg. Co.
1,364,747	Jan. 04, 1921	Universal drill-grinder	Edwin T. Gorham	Grand Rapids, MI	The inventor was deceased at the time the patent was issued. This drill grinder is adjustable to different tip angles and accommodates a wide range of drill diameters.
1,382,003	Jun. 21, 1921	Drill-holder	Henry W. Lightner	Grand Rapids, MI	This patent date was seen on a Yankee drill grinder from Covel Mfg. Co.
1,391,034	Sep. 20, 1921	Drill-holder	Arthur Williams	Grand Rapids, MI	This patent date was seen on a Yankee drill grinder from Covel Mfg. Co.
1,475,614	Nov. 27, 1923	Head adjustment for grinding machines	Arthur Williams	Grand Rapids, MI	New mechanism for vertically adjusting the grinding head.
1,558,525	Oct. 27, 1925	Grinding machine	Arthur Williams	Grand Rapids, MI	Table-reciprocating mechanism for surface grinders and like machines.
1,596,701	Aug. 17, 1926	Truing device for grinding wheels	Arthur Williams	Grand Rapids, MI	Hood-mounted wheel dresser that can be adjusted to any angle.
1,596,702	Aug. 17, 1926	Micrometer adjustment for worktables of grinding machines	Arthur Williams	Grand Rapids, MI