On Monday, November 20, 2017 at 12:30:40 PM UTC-8, N_Cook wrote:
> A sort of slip clutch in a gear train that transmits torque until ther
> is a jam. Then at a preset back-torque a "ratchet" mechanism engages
> making a clicking noise ...
In my imagination, I see a differential, with one output driving the load,
and the other driving a bell, but secured with a brake.
Or, a shaft coupling with a shear pin, which makes a fuss when it
breaks. Maybe a shear pin with a stinky mercaptan center?