KEY n.
-- Key bolt, a bolt which has a mortise near the end, and is secured by a cotter or wedge instead of a nut. Key bugle. See Kent bugle. -- Key of a position or country. (Mil.) See Key, 4. -- Key seat (Mach.), a bed or groove to receive a key which prevents one part from turning on the other. -- Key way, a channel for…
LEVEL n.
Spirit level (below). -- Box level, a spirit level in which a glass-covered box is used instead of a tube. -- Garpenter's level, Mason's level, either the plumb level or a straight bar of wood, in which is imbedded a small spirit level. -- Level of the sea, the imaginary level from which heights and depths are calc…
LIFT n.
Dead. Swift. -- Lift bridge, a kind of drawbridge, the movable part of which is lifted, instead of being drawn aside. -- Lift gate, a gate that is opened by lifting. -- Lift hammer. See Tilt hammer. -- Lift lock, a canal lock. -- Lift pump, a lifting pump. -- Lift tenter (Windmills), a governor for regulating th…
LIFTING a.
r Health. -- Lifting pump. (Mach.) (a) A kind of pump having a bucket, or valved piston, instead of a solid piston, for drawing water and lifting it to a high level. (b) A pump which lifts the water only to the top of the pump, or delivers it through a spout; a lift pump. -- Lifting rod, a vertical rod lifted by a ro…
LOG n.
day and night. These entries are transferred to the log book. A folding slate is now used instead. -- Log book, or Logbook (Naut.), a book in which is entered the daily progress of a ship at sea, as indicated by the log, with notes on the weather and incidents of the voyage; the contents of the log board. Log cabin, L…