Manufacturers Index - O. S. Walker & Co.
O. S. Walker & Co.
Worcester, MA, U.S.A.
Company Website: http://walkermagnet.com/corporate/about.html
Manufacturer Class:
Metal Working Machinery
This page contains information on patents issued to this manufacturer.
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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
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on patents related to machinery and tools. A much easier user interface than the
USPTO's for finding information on machinery patents.
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411,845
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Oct. 01, 1889
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Drill-grinding machine
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Oakley S. Walker |
Worcester, MA |
This patent date was seen on a "Worcester" twist-drill grinder from O. S. Walker & Co. |
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425,839
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Apr. 15, 1890
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Twist-drill-grinding machine
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Oakley S. Walker |
Worcester, MA |
This patent date was seen on a "Worcester" twist-drill grinder from O. S. Walker & Co. |
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564,296
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Jul. 21, 1896
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Magnetic chuck
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Oakley S. Walker |
Worcester, MA |
This patent covers what is believed to be the first magnetic chuck. Walker's design used an electromagnet, thus requiring electricity and wiring to the chuck. In 1935 a British patent, 429,199, was granted for the first permanent magnet chuck (see also its USA equivalent, 2,053,177). |
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607,306
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Jul. 12, 1898
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Twist-drill-grinding machine
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Oakley S. Walker |
Worcester, MA |
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614,190
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Nov. 15, 1898
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Magnetic chuck
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Oakley S. Walker |
Worcester, MA |
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643,927
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Feb. 20, 1900
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Drill-grinder
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Oakley S. Walker |
Worcester, MA |
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1,180,457
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Apr. 25, 1916
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Magnetic Chuck
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Oakley S. Walker |
Worcester, Worcester County, MA |
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1,180,680
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Apr. 25, 1916
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Apparatus for Controlling Magnetic Chucks
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Oakley S. Walker |
Worcester, Worcester County, MA |
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1,222,052
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Apr. 10, 1917
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magnetic chuck
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Oakley S. Walker |
Worcester, MA |
In 1915 or '16, O. S. Walker & Co. reorganized as the O. S. Walker Co. |
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