INNER a.
the fore-topmast head to the jib boom. -- Inner plate (Arch.), the wall plate which lies nearest to the center of the roof,in a double-plated roof. -- Inner post (Naut.), a piece brought on at the fore side of the main post, to support the transoms. -- Inner square (Carp.), the angle formed by the inner edges of a c…
INTERIOR a.
or country. Interior angle (Geom.), an angle formed between two sides, within any rectilinear figure, as a polygon, or between two parallel lines by these lines and another intersecting them; -- called also internal angle. -- Interior planets (Astron.), those planets within the orbit of the earth. -- Interior screw,…
JANUS n.
opposite directions. Numa is said to have dedicated to Janus the covered passage at Rome, near the Forum, which is usually called the Temple of Janus. This passage was open in war and closed in peace. Dr. W. Smith. Janus cloth, a fabric having both sides dressed, the sides being of different colors, -- used for reversi…
JOIST n.
A piece of timber laid horizontally, or nearly so, to which the planks of the floor, or the laths or furring strips of a ceiling, are nailed; -- called, according to its position or use, binding joist, bridging joist, ceiling joist, trimming joist, etc. See Illust. of Double-framed floor, under Double, a.…