thornton clock wheel cutters

Bergeon Wheel Cutters - National Association of Watch and Clock.
Thornton - type watch / clock wheel cutter 0.25 Module | eBay.

Wheel and Pinion Cutters for Clocks - Ian T Cobb.
I have a set of cutters from PP Thornton and have cut lengths of pinion wire in 32DP with no problem for 2 clocks and they show no signs of.

Contact Us - PP Thornton Successors - makers of horological clock.
Jan 2, 2013. These cutters are just as important to the clock as the other cutters needed to. Ratchet Wheel Cutter Escapement Wheel Cutter ... What a sight to behold – Two brand new and unused 0.6 Module cutters,one by Thornton's.
I am considering using cycloidal wheels and pinions in this device, since I still.. 8 cutter from P.P. Thornton that I used when making the clock.

build a pendulum clock [Archive] - National Association of Watch.

Apr 26, 2013. Watches and clocks traditionally use cycloidal gearing. This page will show you how to design these gears and the cutters. The brass wheel teeth end up with concave divots on their acting surfaces. ... I suspect (but I don't know) that this is the basis for the boxed sets offered by Bergeon and Thornton.
and click on "Cutters and Custom Verges" at the bottom of the page. You will find Thornton about 3/4 down the next page. You will have to call.
Eternal Tools offers Thornton Horological Cutters for both wheels and pinions. Full range of Wheel and Pinion, Dead Beat and Recoil Escape Wheels in form.
The new gear must be of the same diameter and have the same number of teeth. If the restorer is lucky, one of the existing cutters will be the right size. However.