Hinge Hinge A hinge is a mechanical bearing that connects two solid objects, typically allowing only a limited angle of rotation between them. Two objects connected by an ideal hinge rotate relative to each other about a fixed axis of rotation: all other translations or rotations being prevented, and thus a hinge has one degree of freedom. Hinges may be made of flexible material or of moving components. In biology, many joints function as hinges like the elbow joint. There are many types of door hinges. The main types include: Other types include: Since at least medieval times there have been
English saddle bars were uncomfortable in this new position, so they were recessed. The waist of the saddle was also made narrower. Additionally, padding was placed under the knee rolls, for extra security. The term "English saddle" encompasses several types, including those used for show jumping and hunt seat, dressage, Saddle seat, horse racing and polo. To non-horsemen, the major distinguishing feature of an English saddle is its lack of a horn. However, some Western saddles, such as those used to ride rough stock in rodeos and certain types of western-influenced saddles used in endurance riding, lack a horn as well. These