Joint

Collier's New Encyclopedia (1921)

in anatomy, the union two segments of an animal body, through of any the intervention of a structure or structures different from both. The different some trade or business with The diff kinds of joints may be thus classified: view to individual profit; invested by 1. Synarthrosis: ( 1) Suture, ( 2) Schindylesis, ( 3) Gomphosis, ( 4) Amphiar- Arthrothrosis. 2. Diarthrosis: (1) dia, (2) Enarthrosis, (3) Ginglymus, and (4) Diarthrosis rotatorius. The terms symphysis, synchondrosis, syneurosis, syssarcosis, and meningosis, formerly applied to joints, are now discarded. În carpentry, a mode of securing together the meeting edges of wooden structures; the place where one piece of timber is united to another. The straight joint is where the edges make a buttjoint, being planed straight. Timbers and tenare generally joined by mortises ons, or by straps and bolts. The various kinds of joints are named according to their forms and uses, thus: ( 1) A but ting joint, in carpentry, is one in which the fibers of one piece are perpendicular to those of the other; in machinery, one in which the pieces meet at right angles. (2) A bevel joint, one in which the plane of the joint is parallel to the fibers of one piece and oblique to those of the other. (3) Dove-tail joint. (4) A longitudinal joint is one in which the common seam runs parallel with the fibers of both. (5) A miter joint, one formed by the meeting of matching pieces in a frame, the parts uniting on a line bisecting the angle, which is usually, but not (6) A square necessarily, one of 90°. (6) joint, one in which the plane of the joint is at right angles to the fibers of one piece, and parallel to those of the other. In geology, a natural fissure or line of parting traversing rocks in a straight and well-determined line, often at right angles to the planes of stratification. In masonry, the face-joints of vouse-jo soirs are those which appear on the face is beof the arch. The vertical joint The tween stones of the same course. The horizontal joint is between courses. coursing-joint is the joint between the courses of voussoirs. The heading-joint is that between two voussoirs in the same course. The flush-joint is filled up to the face by pointing with mortar. In plumbing, the sheets of sheet-metal roofing are joined by a drip-joint or a they are not flashing-joint in cases where -joint is soldered. A flush-joint or jump a butt joint covered with a plate on the inner side, called the butt plate. In a lap-joint the pieces overlap each other. slang The word is also applied in to an opium-smoking den; or any resort of bad repute.