Bottle-opener

A bottle opener is a device that enables the removal of metal bottle caps from bottles. More generally, it might be thought to include corkscrews used to remove cork or plastic stoppers from wine bottles.

A metal bottle cap is affixed to the rim of the neck of a bottle by being pleated or ruffled around the rim. A bottle opener is a specialized lever inserted beneath the pleated metalwork, which uses a point on the bottle cap as a on which to .

There are several distinct designs of such bottle openers. Wall mounted openers are typically found behind bars in pubs, whilst hand-tool bottle openers tend to be found and used in domestic environments. Whereas the functional elements of bottle openers (a tooth or lip to catch the underside of the cap, a fulcrum across which to exert the force that will remove the cap, and usually a lever for mechanical advantage) tend to be consistent (sometimes the lever is the bottle itself), their aesthetic design is subject to very great variety, and a great many decorative types are available.

The following varieties of bottle opener are used around the world used in a professional capacity.

A specific style of bottle opener is known as a churchkey.

Invented at the same time as the crown cork, it is the original "bar blade". But as well as being portable it also comes as a fixed device to be attached to vertical surfaces, often with a tray to catch the bottle tops. It does not open wine bottles. It is class 2 fulcrum type.

A simple opener is a piece of metal with a rectangular or rounded opening in one end and a solid handle large enough to be gripped between the thumb and forefingers on the other. The opening contains a lip that is placed under the edge of the bottle top, pulling it off when upward force is applied to the handle end of the opener. This type of opener is small and durable, so it is frequently used as a key fob.

The speed opener is a flat blade of steel approximately 4 cm wide and 16 cm long with a thumb hole at one end and a letterbox cut at the other to remove the crown seals from a bottle. They go under the names 'Speed Opener', 'Popper', 'Mamba', and most popularly 'Bar Blade'. The thumb hole may be used to pull bottles out of ice, by placing the hole over bottle neck, then lifting it. The speed opener is widely used by professional bartenders in Canada, the United States, and the UK. Carried in the pocket or against the body or on a zip string, it is both convenient and fast for the modern bartender. It is advantageous in that it is easy to open several bottles in rapid succession, and with more flair than other types of bottle opener. Consequently, 'bar blading' is often part of bar flair routines.

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Wikipedia