Hanchett Swage Works - Assigned Patents

Manufacturers Index - Hanchett Swage Works

Hanchett Swage Works
Big Rapids, MI, U.S.A.
Company Website: http://www.hanchett.com/
Manufacturer Class: Wood Working Machinery & Metal Working Machinery

Patents

This page contains information on patents issued to this manufacturer.

Submitting Patent Information

If you find a patent number or patent date by this manufacturer that is not on this list, please contact the Site Historian.

Key to Links for Patent Information

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
445,504	Jan. 27, 1891	Saw-swage	John Hanchett	Big Rapids, MI	Seen on two models from Hanchett Swage Works: "4065 #2 circular", "#1453 and #3 band".
834,009	Oct. 23, 1906	Swage-shaper for saws	Arthur K. Hanchett	Big Rapids, MI
		Swage-shaper for saws	Volney H. Hanchett	Big Rapids, MI
835,220	Nov. 06, 1906	Swage-shaper for saws	Arthur K. Hanchett	Big Rapids, MI
		Swage-shaper for saws	Volney H. Hanchett	Big Rapids, MI
858,175	Jun. 25, 1907	Saw-swage	John Hanchett	Sheridan, MI
867,723	Oct. 08, 1907	Machine for sharpening saw-teeth	John Patrick Hedstrom	Big Rapids, MI	This patent was assigned to "Volney H. Hanchett and Arthur K. Hanchett, composing the firm of Hanchett Swage Works, of Big Rapids, Michigan."
867,724	Oct. 08, 1907	Adjustable cam	John Patrick Hedstrom	Big Rapids, MI
884,385	Apr. 14, 1908	Saw-sharpening machine	John Patrick Hedstrom	Big Rapids, MI
908,462	Jan. 05, 1909	Oscillating mechanism for lap-grinding machines	John P. Hedstrom	Big Rapids, MI
909,295	Jan. 12, 1909	Attachment for saw-swages	John P. Hedstrom	Big Rapids, MI	Seen on model from Hanchett Swage Works: "#1453 and #3 band".
930,178	Aug. 03, 1909	Saw-sharpening machine	John Patrick Hedstrom	Chicago, IL
953,692	Apr. 05, 1910	Retoothing-machine	John P. Hedstrom	Big Rapids, MI
984,669	Feb. 21, 1911	Feed-finger for saw-sharpening machines	John P. Hedstrom	Big Rapids, MI
991,503	May. 09, 1911	Carriage for gang-saw-sharpening machines	John P. Hedstrom	Big Rapids, MI
1,022,479	Apr. 09, 1912	Rest for saw-sharpening machines	John P. Hedstrom	Big Rapids, MI
1,031,711	Jul. 09, 1912	Feed-finger mechanism	John P. Hedstrom	Big Rapids, MI
1,031,712	Jul. 09, 1912	Feed-finger mechanism	John P. Hedstrom	Big Rapids, MI
1,038,127	Sep. 10, 1912	Stretcher-rolls	John P. Hedstrom	Big Rapids, MI
1,091,930	Mar. 31, 1914	Die for saw-swages	Arthur K. Hanchett	Big Rapids, MI
1,173,509	Feb. 29, 1916	Swage	John P. Hedstrom	Big Rapids, MI	"This invention relates to saw swages and pertains more particularly to swages of the type commonly used for flattening the teeth of band saws and the like."
1,603,894	Oct. 19, 1926	Clamp screw for saw swages	Frederick K. Benedict	Big Rapids, MI	"This invention relates to saw swages of that class in which a head comprising a piece of metal of cylindrical or other suitable shape is formed with a slit to receive a saw blade and has a threaded hole therein at right angles to the plane of the slit. In such swages a clamping screw is inserted in the threaded hole, and is tightened to clamp the saw, or loosened to release it, usually by a handle secured to a shank formed on the outer end of the screw... The present invention is found in my novel construction of the slightly articulated joint by which the saw-engaging end-member or cap is joined to the threaded body of the screw."
1,742,843	Jan. 07, 1930	Multiple cam	Frederic K. Benedict	Big Rapids, MI
1,863,910	Jun. 21, 1932	Saw swage	Carl Morey	Big Rapids, MI
1,895,122	Jan. 24, 1933	Traveling wheel grinder	Frederic K. Benedict	Big Rapids, MI
1,909,614	May. 16, 1933	Rotary grinding machine	Edward B. Gardner	Big Rapids, MI
2,190,920	Feb. 20, 1940	Power operated saw swage	Ralph V. Hanchett	Big Rapids, MI
2,249,743	Jul. 22, 1941	Saw sharpening apparatus	Elroy J. Bucknam	ON, Canada	This patent is notable because it introduced a new design of handheld sharpening machine for inserted-tooth circular sawblades that dominated the industry even 60 years later. The 2005 specification for patent 6,958,004 says the following: "Over the years, many devices have been used to sharpen the teeth of the saws. The most popular saw grinders typically employ a power-driven rotary grinding wheel mounted on a grinder carriage. Such devices are well known in the art; however, there have been no significant advances therein for some time. U.S. Pat. Nos. 2,249,743, 2,439,279, 2,651,219, 3,880,019, and 4,711,142 each relate to hand-held, motor driven saw blade sharpeners. Of these devices, only the grinder disclosed in U.S. Pat. No. 2,249,743 and the improvements thereto are readily available and commonly used in the industry today. The most popular of these improvements is a saw sharpener referred to as the 'Jockey Grinder,' produced by Hanchett Mfg. in Big Rapids, Mich."
2,371,582	Mar. 13, 1945	Grinding apparatus	Ralph V. Hanchett	Big Rapids, MI
2,432,194	Dec. 09, 1947	Insulation sealing cover for electric coils	Ralph V. Hanchett	Big Rapids, MI	"One place where electric coils are used in considerable numbers is in connection with magnetic chucks..."
2,835,085	May. 20, 1958	Magnetic dial feeder	Jack F. Manting	Big Rapids, MI	"The present invention relates to a magnetic dial chuck feeder mechanism for the very rapid and effective continuous feeding of piston rings or similar rings between grinding wheels which continuously operating at high speed, serve to simultaneously grind the opposite sides of the castings..." This patent is referred to in a number of subsequent patents for similar inventions. The assignee company was established in 1948 by Ralph V. Hanchett and two sons-in-law; Hanchett had earlier established Hanchett Swage Works. In 1970, Hanchett Magna-Lock was renamed to Magna-Lock Corp., and then in 1974 the company was acquired by Hitachi Metals America, Ltd., and renamed to Hitachi Magna-Lock Corp. In 1985 a former employee purchased the lift-magnet and permanent chuck lines to form Magnetic Specialties Corp.; the remaining products were purchased by Mattison Machine Works. Mattison Machine Works failed in 1997 and the assets were acquired by DeVlieg-Bullard, who in that same year sold the magnetic products to Centro-Metalcut, Inc. In 2002, Tri-CAM, Inc., was established and took over all products from Centro-Metalcut. In 2007, Tri-CAM went under; Magna-Lock USA, Inc., was created to continue the Magna-Lock product line. In 2010, Magnetic Specialties (remember them, from 1985?) went under and its product lines were picked up by Magna Lock USA, Inc.
3,329,025	Jul. 04, 1967	Balance testing apparatus	Clyde H. Phelps	Springfield, IL
3,452,604	Jul. 01, 1969	Balance testing apparatus head	Fred C. Schaub	Big Rapids, MI