Travelers

1. Small fittings that slide on a track, rod, or line. The most common use is for the inboard end of the mainsheet.
2. A more esoteric form of traveler consists of "slight iron rings, encircling the backstays, which are used for hoisting the top-gallant yards, and confining them to the backstays".[78]
An iron ring that moves on the main horse on a sailing barge. It is fitted with an eye onto which is hooked the main sheet, of the loose-footed mainsail.