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
Eugénie hat popular in the 1850s and 1860s, when it was also known as the empress hat. It was characterised by its forward tilt and featured feathers and ribbons. Typically it was made of velvet or felt. Mary Brooks Picken noted that the hat was generally small in its original incarnation, often with the brim turned up on one or both sides, with what were generally ostrich feathers as a trim. It would normally be tilted towards the right. Originally, the hat was worn for horseriding and travelling. The design began in Paris but became known in Britain. It was described in