The Collaborative International Dictionary of English v.0.48:

Windsor \Wind"sor\, n.
   A town in Berkshire, England.
   [1913 Webster]

   Windsor bean. (Bot.) See under Bean.

   Windsor chair, a kind of strong, plain, polished, wooden
      chair. --Simmonds.

   Windsor soap, a scented soap well known for its excellence.
      [1913 Webster]

WordNet (r) 3.0 (2006):

Windsor chair
    n 1: straight chair having a shaped seat and a back of many
         spindles