Hierarchy classification:

1. top of the aat hierarchies
2. Objects Facet
3. Components (hierarchy name)
4. components (objects parts)
5. [components by general context]
6. hardware (components)
7. [hardware by form]
8. finish hardware (hardware)
9. [hinges and hinge components]
10. hinges (hardware)
11. [hinges by form]

Anotations

Scope note:

Mechanical contrivances that allow swinging motion in a single plane of one of the members to which they are attached, such as a door, and in which water or some other liquid is employed in the mechanism to control the speed at which the hinge moves; usually to slow the motion of a closing door.