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.
|
1,195,555
|
Aug. 22, 1916
|
Floor dressing and polishing machine
|
John A. Campbell |
Quincy, MA |
"This invention relates to a machine for grinding and polishing floors and other horizontal structures composed of stone or like material, or of a combination of materials capable of being ground and polished by the flat side of a tool mounted to rotate on a vertical axis and pressed while rotating against the surface on which it acts, the machine being movable by the operator, to extend the grinding and polishing action in various directions..." |
|
1,279,082
|
Sep. 17, 1918
|
Dressing-machine for floors, &c.
|
John A. Campbell |
Quincy, MA |
"This invention relates chiefly to a machine for imparting smooth surfaces to floors and other structures, either of wood, or any other material, capable of being reduced or worn away by a rotating abrasive tool, pressed while rotating against the surface on which it acts..." |
|
1,523,049
|
Jan. 13, 1925
|
Surfacing machine
|
John A. Campbell |
Quincy, MA |
"This invention relates to a machine used chiefly for dressing the surfaces of walls, ceilings, etc., composed of terrazzo, or like composition..." |