In UK MAIB’s latest Safety Digest, two crewmen broke their wrists during a sail training. Namely, the two men were turning the starboard coffeegrinder to heave in the headsail when there was a sudden change of the handles’ direction.
The incident
A maxi-yacht was at sea and the crew was training for a race. On its coach-roof, the yacht was fitted with two pedestal-style winches, known as coffee-grinders.
The winches were operated by two crewmen who were working together to turn the pedestal...
https://safety4sea.com/two-crew-injured-due-to-winch-malfunction/