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 popularity of the silk plush top hat possibly led to a decline in beaver hats, sharply reducing the size of the beaver trapping industry in North America, though it is also postulated that the beaver numbers were also reducing at the same time. Whether it directly affected or was coincidental to the decline of the beaver trade is debatable. James Laver once observed that an assemblage of "toppers" resembled factory chimneys and thus added to the mood of the industrial era. In England, post-Brummel dandies went in for flared crowns and swooping brims. Their counterparts in France, known as the