Note(s)

In this class, the following terms are used with the meanings stated:

1. "Wing" is a general term for doors, openable windows, and other movable members to which similar fastening devices may be applied, e.g. drawers, lids of chests, car boots, car bonnets. A wing may swing, slide, or move in any other manner.
2. "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.
3. "Lock" means primarily a device for releasing or securing any member, which requires a key or a permutation mechanism for release.
4. "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 (5) below)
5. "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.
6. "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.