In this class, the following terms are used with the meanings indicated: "wing" is a general term for swingable, slidable, or otherwise movable doors or windows. This term also includes other movable structures such as drawers, lids of chests, car boots, or car bonnets, to which the operating, mounting, latching, or locking means covered by this class may be applied; "frame" means any member to which a wing may be held by a fastening device. It does not include a framework forming part of the wing, but it may be another wing; "lock" means primarily a device for releasing or securing any member, which requires a key or a permutation mechanism for release. In groups , , , , , and however, the term "lock" may include other fastening devices; "bolt" means a sliding, pivoted, or otherwise movable member such as is normally carried by a door to hold it shut by engagement with a keeper on the frame. It may be operated by hand directly or through mechanism or by a key; it may be a latch (see below); "latch" means a bolt arranged to be moved to the releasing position against the force of a spring, or some other returning force, when a wing meets the frame on closing, so that it does not have to be operated by hand to secure the wing, but only to open it; "hasp" means a member hinged to the frame or wing so that it can be moved towards the face of the wing or frame and secured thereto, e.g. by a turn-button, by a padlock and staple. LOCKS WITH TUMBLERS Moved by rotation of the key , , Set by pushing the key in LOCKS FOR USE WITH SPECIAL KEYS OR KEY SETS PERMUTATION OR PUZZLE LOCKS , PADLOCKS , LOCKS WITH INDICATING OR TIMING DEVICES LOCKS WITH PROVISION FOR LATCHING , LOCKS WITH OTHER SPECIAL STRUCTURAL FEATURES LOCKS FOR SPECIAL USE , OPERATION OR CONTROL OF LOCKS DETAILS OR ACCESSORIES OF LOCKS OR THE LIKE, KEYS Knobs or handles Other details or accessories of locks or latches Keys HANDCUFFS In this subclass, only the movement essential for securing the wing is considered, e.g. a sliding bolt which is rotated on its axis to prevent its withdrawal is classified as having only a sliding movement. Attention is drawn to the definitions following the title of class . FASTENING DEVICES characterised by the way the bolt is moved specially for holding wings open , specially adapted for two wings ARRANGEMENT OF FASTENING, SECURING, OR LOCKING DEVICES , HINGES General structure , Special structure Details; accessories , ; OTHER SUSPENSION DEVICES FOR WINGS , In this subclass, the following terms are used with the meanings indicated: "closer" or "opener" includes devices for assisting wing-movement or for wing-counterbalancing. CLOSERS, OPENERS, OR CHECKS FOR WINGS , , ACCESSORIES FOR WINGS OPERATING MECHANISMS FOR WINGS In this subclass, the following terms or expressions are used with the meanings indicated: "bank" is a building or portion of a building devoted to the safekeeping or exchange of valuables between the "bank" and its customers; "bank protection device" is a mechanism in or on a bank for protecting the valuables or repelling attacks by stealth or force.