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 Exchange that required the wearing of a top hat in the streets of the City of London was abolished by the "Big Bang" reforms of October 1986. In the British House of Commons, a rule requiring a Member of Parliament who wished to raise a point of order during a division, having to speak seated with a top hat on, was abolished in 1998. Spare top hats were kept in the chamber in case they were needed. The Modernisation Select Committee commented that "This particular practice has almost certainly brought the House into greater ridicule than almost any other". Although