Opera hat which means hat, and "claque", which means "tap" or "click". The "chapeau claque" is thus a hat that folds with a click, and unfolds likewise. In English the hat model is usually referred to as a "collapsible top-hat", "gibus" or more often "opera hat"- The construction may originally have been inspired by an historical hat model called "chapeau bras" ("arm hat"), made as bicorne or tricorne to be carried folded under the arm On May 5, 1812, a London hatter called Thomas Francis Dollman patented a design for "an elastic round hat" supported by ribs and springs. His patent was
Top hat standard covering is now fur plush or "melusine" as (the London hat merchant) Christys' calls it. A grey flat fur felt top hat is the popular alternative. It is common to see top hats in stiff wool felt and even soft wool though these are not considered on the same level as the silk or fur plush or grey felt varieties. The standard crown shape nowadays is the 'semi-bell crown'; 'full bell crowns' and 'stovepipe' shaped toppers are rarer. Because of the rarity of vintage silk hats, and the expense of modern top hats, the vintage/antique market is very lively,