A sedan chair is an enclosed chair for one person carried on two poles by two men, one in front and one behind. Sedan chairs were used in the 17th and 18th centuries.
sedan chair in British English
noun
a closed chair for one passenger, carried on poles by two bearers. It was commonly used in the 17th and 18th centuries
Sometimes shortened to: sedan
sedan chair in American English
noun
an enclosed vehicle for one person, borne on poles by two bearers and common during the 17th and 18th centuries