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A joint in which the edges or ends of the pieces united come squarely together instead of overlapping. See 1st Butt, 8.

ends of two objects come squarely together without scrafing or chamfering; -- also called butt joint.

rk or masonry. From the jump, from the start or beginning. [Colloq.] -- Jump joint. (a) A butt joint. (b) A flush joint, as of plank in carvel-built vessels. -- Jump seat. (a) A movable carriage seat. (b) A carriage constructed with a seat which may be shifted so as to make room for second or extra seat. Also used adj…

), a covering or break-join plate riveted to and uniting the edges of sheets which make a butt joint. -- Junction rails (Railroads), the switch, or movable, rails, connecting one line of track with another.

lectively. Tomlinsin. Butt riveting, riveting in which the ends or edges of plates form a butt joint, and are fastened together by being riveted to a narrow strip which covers the joint. -- Chain riveting, riveting in which the rivets, in two or more rows along the seam, are set one behind the other. -- Crossed rivet…

n steam boilers and sheet-iron work, a strip riveted upon the edges of plates that form a butt joint.