Different Approach The patented safety pinion designs by Burt, Fogg, and Moseley all operated by means of a center pinion that would disengage from the center staff when the mainspring.
The safety pinion was one of the most pivotal inventions to impact the America watch industry. The ability to protect the delicate watch parts from being damaged when a mainspring.
Around 1869, the National Watch Company (Elgin) faced the reality that the safety pinion used in its watch movements was inherently flawed. As a result, the company was forced to.
While Charles W. Fogg is generally credited with creating the first safety pinion in America, Merritt Burt actually secured a patent for his safety pinion design a few months before.
