The Illinois Watch Company distributed this small illustrated catalog in 1884 to promote its line of watch movements offered at the time. The introduction to the catalog mentions several improvements.
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.
Before Fogg's patented safety pinion entered the public domain in 1882, new watch companies were compelled to prioritize the development of their own unique safety pinion design. When the Illinois.
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.
(A guest post by Jonathan Luysterborghs) This is the rewrite of his original article "Four Companions, a Traveler, and a Tourist: An Introduction to Seth Thomas Travel Timepieces." It provides.
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.