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Manufacturers Index - Trump Brothers
Patents
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 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
129,874 Jul. 23, 1872 Improvement in toys Samuel N. Trump Rossville, MD The toy is a scroll saw, possibly sold by Edward A. Hollis, and definitely sold by the Trump Bros. of Wilmington, Delaware—the patent date is reported on such a saw. The example has cast in the frame, "Trump Bros. Wilmington Delaware Pat'd July 23,1872 and reissued Nov 6, 1877".
162,588 Apr. 27, 1875 Improvement in scroll-sawing machines Samuel N. Trump Wilmington, DE
    Improvement in scroll-sawing machines Charles N. Trump Wilmington, DE  
184,445 Nov. 14, 1876 Improvement in drill-chucks Charles N. Trump Wilmington, DE The inventors contrast their design to Albert D. Goodell's US Patent No.141,345, simply by virtue of having three jaws and circular symmetry about the spindle axis, obviating any need for adjustment. An advertisement in the 1880-01-03 American Machinist features this chuck with patent date clearly visible.
    Improvement in drill-chucks Samuel N. Trump Wilmington, DE  
185,270 Dec. 12, 1876 Improvement in scroll-sawing machines Charles N. Trump Wilmington, DE An example of this saw, labeled Trump & Frederick, was seen on eBay.
    Improvement in scroll-sawing machines Samuel N. Trump Wilmington, DE  
    Improvement in scroll-sawing machines Christian Frederick Wilmington, DE