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Manufacturers Index - Wahlstrom Tool 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.
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Patent Number Date Title Name City Description
771,951 Oct. 11, 1904 Coupling Verner J. Wahlstrom Brooklyn, NY
821,984 May. 29, 1906 Clutch and counter-shaft mechanism Bernhard T. Burchardi Brooklyn, NY
    Clutch and counter-shaft mechanism Verner J. Wahlstrom Brooklyn, NY  
866,245 Sep. 17, 1907 Chuck Verner J. Wahlstrom Brooklyn, NY
870,143 Nov. 05, 1907 Chuck Verner J. Wahlstrom Brooklyn, NY
870,206 Nov. 05, 1907 Clutch Verner J. Wahlstrom Brooklyn, NY
884,244 Apr. 07, 1908 Chuck Verner J. Wahlstrom New York, NY
884,243 Apr. 07, 1908 Milling-machine Verner J. Wahlstrom Brooklyn, NY Co-assignee Bernhard T. Burchardi was president and director of Wahlstrom Tool Co., and both men were directors of American Machine & Foundry Co., which at this time were primarily focused on tobacco machinery although they would later make machine tools.
968,718 Aug. 30, 1910 Tapping or drilling attachment Verner J. Wahlstrom New York, NY
970,670 Sep. 20, 1910 Drilling-machine and drill Verner J. Wahlstrom Brooklyn, NY This invention is a combination of a drill press chuck and drill bits such that a drill bit has a shoulder that engages with the bottom surface of the chuck so as to set the insertion depth, and the top surface of the drill bit (the end opposite the cutting tip) is shaped so as to positively engage with a corresponding receptacle in the chuck so that the bit cannnot slip in the chuck jaws. Various shapes of end surface are suggested.
978,521 Dec. 13, 1910 Oil-cup Verner J. Wahlstrom Brooklyn, NY Gravity-feed oil cup for use on machine bearings.
994,804 Jun. 13, 1911 Hand-tool Verner J. Wahlstrom New York, NY
996,953 Jul. 04, 1911 Chuck Verner J. Wahlstrom Brooklyn, NY
996,954 Jul. 04, 1911 Chuck Verner J. Wahlstrom Brooklyn, NY
996,955 Jul. 04, 1911 Chuck Verner J. Wahlstrom Brooklyn, NY
1,026,187 May. 14, 1912 Chuck Verner J. Wahlstrom Brooklyn, NY Wahlstrom drill chucks remain in production over a century later.
1,046,237 Dec. 03, 1912 Drill and chuck Verner J. Wahlstrom Brooklyn, NY
1,075,174 Oct. 07, 1913 Chuck Verner J. Wahlstrom Brooklyn, NY This patent date was seen on a Wahlstrom chuck along with the date for patent 1,162,197.
1,127,121 Feb. 02, 1915 Expanding reamer Verner J. Wahlstrom Brooklyn, NY
1,162,197 Nov. 30, 1915 Chuck Verner J. Wahlstrom Brooklyn, NY Wahlstrom drill chucks have been in continuous production for more than a century, and the name is sometimes used as a synonym for a keyless chuck. An example has been seen marked, "Wahlstrom Tool Co. / Brooklyn, N.Y. / Pat. May 14.1912 / Nov 30.1915". The first patent date corresponds to patent 1,026,187.
1,224,596 May. 01, 1917 Tapping attachment for boring-machines Bertil Wilhelm Bronander Brooklyn, NY
1,250,864 Dec. 18, 1917 Chuck John F. Halstead Brooklyn, NY
1,260,896 Mar. 26, 1918 Tapping attachment for boring-machines John F. Halstead Brooklyn, NY
1,608,113 Nov. 23, 1926 Chuck Axel G. Lundin Brooklyn, NY
    Chuck George E. Nace Brooklyn, NY