Welcome! 

Register :: Login
Manufacturers Index - Diamond Iron Works

Diamond Iron Works
Minneapolis, MN, U.S.A.
Manufacturer Class: Wood Working Machinery & Steam and Gas Engines

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
482,326 Sep. 06, 1892 Friction-clutch William A. Wilkinson Minneapolis, MN
639,538 Dec. 19, 1899 Power-hammer Hermann G. Dittbenner Minneapolis, MN An Iron Store "Giant" hammer is reported, bearing this patent date.
717,738 Jan. 06, 1903 Double-cutting band-saw mill Hermann G. Dittbenner Minneapolis, MN
777,779 Dec. 20, 1904 Sawmill-hog Hermann G. Dittbenner Minneapolis, MN
799,546 Sep. 12, 1905 Feed device for horizontal band-resaws Hermann G. Dittbenner Minneapolis, MN
799,592 Sep. 12, 1905 Horizontal band-resaw Hermann G. Dittbenner Minneapolis, MN
799,836 Sep. 19, 1905 Twin-circular-saw mill Hermann G. Dittbenner Minneapolis, MN
808,975 Jan. 02, 1906 Friction-clutch Hermann G. Dittbenner Minneapolis, MN Improvement to patent 482,326.
920,035 Apr. 27, 1909 Band-saw-tension device Hermann G. Dittbenner Minneapolis, MN
936,314 Oct. 12, 1909 Band-saw mill Hermann G. Dittbenner Minneapolis, MN
1,207,103 Dec. 05, 1916 Band-saw mill Hermann G. Dittbenner Minneapolis, MN
    Band-saw mill Fletcher L. Walker Minneapolis, MN  
1,259,569 Mar. 19, 1918 Band-saw mill Hermann G. Dittbenner Minneapolis, MN
    Band-saw mill Fletcher L. Walker Minneapolis, MN  
1,260,837 Mar. 26, 1918 Upper saw-guide Hermann G. Dittbenner Minneapolis, MN
    Upper saw-guide Fletcher L. Walker Minneapolis, MN  
1,344,096 Jun. 22, 1920 Resawing-machine Charles B. Sprague Minneapolis, MN This machine uses a horizontal bandsaw and hydraulic thickness adjustment.
1,436,208 Nov. 21, 1922 Sawmill hog Charles B. Sprague Minneapolis, MN Improvements to patent 777,779. "An object in particular is to provide a machine which will cut material, such as refuse lumber, into chips without the production of slivers or long pieces."
1,794,177 Feb. 24, 1931 Apparatus for unloading cars Clarence T. Johnson Minneapolis, MN The assignee also made sawmill machinery.
1,950,501 Mar. 13, 1934 Rock crushing plant John J. MacKay Minneapolis, MN The assignee also made sawmill machinery.
2,117,300 May. 17, 1938 Rock crushing machine John Corser Minneapolis, MN The assignee also made sawmill machinery.
2,179,747 Nov. 14, 1939 Means for conveying aggregates in portable rock crusher machines Philip C. Malmsten Minneapolis, MN The assignee also made sawmill machinery.
2,210,093 Aug. 06, 1940 Material handling device Stephen J. Morrissey Rapid City, SD The assignee also made sawmill machinery.
2,256,731 Sep. 23, 1941 Means for forming and segregating rock chips from aggregates George C. Winther Minneapolis, MN The assignee also made sawmill machinery.
2,311,131 Feb. 16, 1943 Means for controlling movement of trucks into and from heated chambers of furnaces Charles W. Rudolph Chicago, IL The assignee also made sawmill machinery.
2,314,827 Mar. 23, 1943 Process for extracting pure nitrogen from air Richard M. Hortvet Minneapolis, MN The assignee also made sawmill machinery.