LOCK n.
. -- Lock rail (Arch.), in ordinary paneled doors, the rail nearest the lock. Lock rand (Masonry), a range of bond stone. Knight. -- Mortise lock, a door lock inserted in a mortise. -- Rim lock, a lock fastened to the face of a door, thus differing from a mortise lock.
MARGIN n.
as in the speculative buying and selling of stocks, wheat, etc. N. Biddle. Margin draft (Masonry), a smooth cut margin on the face of hammer-dressed ashlar, adjacent to the joints. -- Margin of a course (Arch.), that part of a course, as of slates or shingles, which is not covered by the course immediately above it.…
MOLE n.
A mound or massive work formed of masonry or large stones, etc., laid in the sea, often extended either in a right line or an arc of a circle before a port which it serves to defend from the violence of the waves, thus protecting ships in a harbor; also, sometimes, the harbor itself. Brande & C.
MORTAR n.
cement, or plaster of Paris, with sand, water, and sometimes other materials; -- used in masonry for joining stones, bricks, etc., also for plastering, and in other ways. Mortar bed, a shallow box or receptacle in which mortar is mixed. -- Mortar board. (a) A small square board with a handle beneath, for holding mort…
PIT n.
thin spot in the wall of a duct. Cold pit (Hort.), an excavation in the earth, lined with masonry or boards, and covered with glass, but not artificially heated, -- used in winter for the storing and protection of half-hardly plants, and sometimes in the spring as a forcing bed. -- Pit coal, coal dug from the earth; m…
RANDOM a.
arp a spur to the lazy, and so strong a bridle to the random. H. Spencer. Random courses (Masonry), courses of unequal thickness. -- Random shot, a shot not directed or aimed toward any particular object, or a shot with the muzzle of the gun much elevated. -- Random work (Masonry), stonework consisting of stones of u…