Pocket Watch Database
Illinois Watch Co.
Pocket Watch Regulators
These are known regulators used on Illinois watch movements. The regulator is used to adjust the balance wheel's rate of oscillation in order to improve accuracy of the watch. Several varieties of watch regulators were used in movement designs, most of which were patented, often called "Patent Regulators." The best regulators offer extreme precision while adjusting the rate of oscillation. A patent regulator was often an indicator of quality.
Name: | Chalmers |
Inventor: | David W. Chalmers |
Patent Date: | Dec 19 1882 |
Patent Number: | 269385 |
Name: | Reed |
Inventor: | George P. Reed |
Patent Date: | Feb 5 1867 |
Patent Number: | 61867 |
Name: | Wheeler 1880 |
Inventor: | Phillip H. Wheeler |
Patent Date: | Jun 22 1880 |
Patent Number: | 229215 |
Name: | Illinois Whipspring |
Inventor: | (Reed Variant) |
Patent Date: | Feb 5 1867 |
Patent Number: | 61867 |