Escapement of Seth Thomas Oak Kitchen (Shelf) Clock

This clock movement is an earlier version of the No. 89 movement. It is marked "8 1/4" on the front plate. It uses 11/16 inch wide loop end mainsprings (later examples use 3/4 inch wide springs). It can run reliably on thin, weak mainsprings, but was given quite strong springs originally. The original time mainspring was 0.0195 inch thick, the original strike spring was 0l;0185 inch thick. The time mainspring was broken when the clock came in for repair. I replaced both mainsprings with thinner springs (time spring 0.0163 inch thick, strike spring 0.0168 inch thick). The pendulum takes an excellent swing with this this mainspring, and an even thinner time mainspring could be used (if it were available)!

This movement has a strip deadbeat escapement.

Category:

Science & Technology

Tags:

• clock
• seth
• thomas
• escapement
• deadbeat

[altaka1]

Very nice clear video, I'm getting a new camcorder in this weekend which should jazz up my video's as well. For springs, are you using made in India, USA or Germany? I have had several made in India springs explode on me and damaged clock cases. The dark blue American springs are hard to find and the German's are too expensive.

Isn't nice the way a 100 year old movement cleans up, it looks like new.