商务英语：五金术语A-B

文章作者 100test 发表时间 2007:05:07 15:55:02
来源 100Test.Com百考试题网

Hardware Terms(A-B)五金术语A-B

Hardware Terms A

Active Door (in a pair of doors) The leaf that opens first and the one to which the lock is applied.
AHC Indicates that the individual so identified is a qualified Architectural Hardware Consultant and member of the Door and Hardware Institute.
Anti-Friction Bearing
Any bearing having the capability of effectively reducing friction.
Anti-Friction Latch Bolt
A latch bolt designed to reduce friction when the bolt starts to engage the lock strike.
Architectural Hardware Term applied to all hardware used in building construction but particularly that used on or in connection with doors, windows, cabinets and other movable members.
Armor Plate A plate similar to a kick plate but covering the door to a greater height, usually 40" (1040mm) or more from the bottom.
Armored Front A lock that consists of two plates: the under plate is fastened to the case and is unfinished. the finish plate is fastened to the under plate and when in place covers the cylinder set screws, thus protecting them from tampering. Used on mortise locks.
Astragal A molding or strip whose purpose is to cover or close the gap between the edges of a pair of doors. Some types overlap, others meet at the center line of the gap. (See Coordinator)
Auxiliary Dead Latch A supplementary latch that automatically deadlocks the main latch bolt when the door is closed. (Also called Deadlocking Latch Bolt)

Hardware Terms B

Back Check Optional feature in hydraulic door closers slowing the opening swing of the door somewhere between 60 degrees and 85degrees of opening. Designed to protect an object behind the door. Not intended to act as an overhead stop.
Backset (of a hinge) The distance from the edge of the door to the hinge.
Backset (of a lock) The horizontal measurement from the edge of the door to the center point of the 2-1/8" holes through the door.
Ball-Bearing Hinge A hinge equipped with ball bearings between the hinge knuckles to reduce friction. (See Anti-Friction Bearing). Mainly used for heavy doors for ease of opening.
Bevel (of a door) The angle of the lock edge in relation to the face of the lock stile. Standard bevel is 1/8" in 2" (3.2mm in 50.8mm). If otherwise detailed, it must be so noted in ordering locks.
Bevel (of a lock front) Anti-reflective glass is float glass with a specially-designed coating which reflects a very low % of light. It offers maximum transparency and optical clarity, allowing optimum viewing through the glass at all times.
Bevel (of a lock) A term used to indicate the direction in which the latch bolt is inclined: regular bevel for doors opening in, reverse bevel for doors opening out.
Bit (of a key) The projecting blade, cut in a manner that actuates the tumblers and permits the lock bolts to be operated.
Bored Lock (or Latch) Lock or latch whose parts are intended for installation in holes bored in a door.
Box Strike A strike that also provides a complete housing to protect the bolt openings.
Butt (Hinge) A type of hinge designed for mortising into the edge of the door and into the rabbet of a door frame.

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