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.
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1,200,395
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Oct. 03, 1916
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Metal-working machine
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George A. Schipper |
Aurora, IN |
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1,368,457
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Feb. 15, 1921
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Metal Cutting Tool
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George A. Schipper |
Aurora, Dearborn County, IN |
Original application filed 07 Oct., 1914. Divided and this application filed 20 Feb, 1918.
Claim:
One of its objects is to provide alternately operating cutters to serve as roughing and finishing cutters, and to cunt away the metal evenly without breaking out or injuring sharp corners or edges or other parts of the work. Another object is to provide accurate and finished work at one operation. Another object is to provide improved means to mount and accurately function alternately acting cutters. |
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1,941,275
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Dec. 26, 1933
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Sanding machine
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George A. Schipper |
Aurora, IN |
This sander is for high-speed sanding of spindles. It was implemented in practice as an accessory to a Nash turning sander. |