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A Guide to
Builders Hardware Terminology: Hinges Bearings. Anti-Friction Bearing. Bearing material between the various moving parts of a hinge Plain Bearing (non-bearing). When no bearing material is between the various moving parts of a binge. Butt Hinge. (see Full Mortise Hinge) Full Mortise Hinge. A hinge having one leaf mortised into the edge of a door and the other leaf mortised into the rabbet edge of a frame. Full Surface Hinge. A hinge having one leaf attached to the face of a door and the other leaf attached to the face of a door frame. Half Mortise Hinge. A hinge having one leaf mortised into the edge of a door and the other leaf attached to the face of a door frame. Half Surface Hinge. A hinge having one leaf attached to the face of a door and the other leaf mortised into the rabbet edge of a door frame. Hospital Tips. When the ends of a hinge barrel are sloped. Maximum Security Pin. A hinge pin that cannot be removed when once installed. Non-Removable Pin. A hinge pin secured by a set screw or other means. Olive Knuckle Hinge. A pivot hinge with a joint shaped like an olive. Pivot Hinge. A hinge with a fixed pin and a single joint having a height less than the adjacent hinge leaves. Raised Barrel. A full mortise hinge having an offset barrel. Safety Stud. A projecting member on one surface of a full mortise hinge leaf that engages a hole in the opposite leaf when the door is closed. Slide-In Hinge. A hinge where one or both leaves slide into a cavity prepared in a door or door frame, thus concealing one or both hinge leaves. Swaging. Offsetting a hinge leaf at the barrel so the surface of the leaf is not tangent to the outer diameter of the barrel. Swing Clear
Hinge. A hinge that swings a door completely clear of the opening
when the door is opened 90 to 95 degrees.
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