Welcome! 

Register :: Login
Manufacturers Index - T. M. Chapman
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
8,330 Sep. 02, 1851 Saw-filing machine Thomas M. Chapman Old Town, ME
11,930 Nov. 14, 1854 Device for adjusting mill-saws Thomas M. Chapman Old Town, ME
37,853 Mar. 10, 1863 Improvement in devices for gumming saws T. M. Chapman Old Town, ME
127,462 Jun. 04, 1872 Improvement in saw-filing machines Thomas M. Chapman Old Town, ME
144,383 Nov. 11, 1873 Improvement in saw-sharpening machines Thomas M. Chapman Old Town, ME
273,817 Mar. 13, 1883 Feed-roll for saw-mills Thomas M. Chapman Old Town, ME "...new and useful improvements in Sawing-Machines for Laths, Pickets, &c".