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Manufacturers Index - Bradford Machine Tool Co.
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
421,866 Feb. 18, 1890 Feed mechanism for lathes Edward A. Muller Cincinnati, OH In the year this patent was issued, the Muller Machine Tool Co. was acquired by the Bradford Mill Co. In 1890 that firm sold off their flour mill machinery business and reorganized as the Bradford Machine Tool Co.
971,243 Sep. 27, 1910 Relieving Attachment for Lathes Edward W. Blum Cincinnati, Hamilton County, OH
    Relieving Attachment for Lathes William T. S. Johnson Cincinnati, Hamilton County, OH  
    Relieving Attachment for Lathes Frederick Kropf Cincinnati, Hamilton County, OH  
1,143,592 Jun. 15, 1915 Lathe Edward W. Blum Cincinnati, OH
1,796,352 Mar. 17, 1931 Automatic Tapping Head Sydney C. Watson Chicago, Cook County, IL