商务英语：五金术语C-D

文章作者 100test 发表时间 2007:05:07 15:54:56
来源 100Test.Com百考试题网

Hardware Terms(C-D)五金术语C-D

Hardware Terms C

Cam (of a cylinder) A rotating piece attached to the end of the cylinder plug to engage the locking mechanism.
Cane Bolt A heavy cane-shaped bolt with the top bent at right angles. used on the bottom of doors.
Case (of a lock) The box containing the lock mechanism.
Casement Hinge A hinge to swing a casement window. The term is often used to describe a hinge designed to throw the sash out far enough to permit cleaning the outside of the glass from the inside of the room on an outward-swinging casement.
CDC Indicates that the individual so identified is a Certified Door Consultant and member of the Door and Hardware Institute.
Chain Bolt A spring bolt actuated by a chain attached to the spring bolt for application at the top of the door.
Chain Door Fastener A device that limits the opening of a door by means of a chain.
Changes (Key) The different bittings or tumbler arrangements in a series of locks.
Checking Floor Hinge A device placed in the floor that combines top and bottom pivots for hanging the door with a controlledspeed closing mechanism.
Continuous Hinge (also called Piano Hinge) A hinge designed to be the same length as the moving part to which it is applied, for example, the lid covering the keyboard of a piano.
Conversion Kit Allows flexibility to adapt handlesets and deadbolts to fit 2" or 2-1/4" thick doors.
Coordinator A device used on a pair of doors to ensure that the inactive leaf is permitted to close before the active leaf. Necessary when an overlapping astragal is present and exit devices, automatic or self-latching bolts are used with closers on both door leaves.
Cremone Bolt A device of surface application that, by a turn of knob or lever handle, locks the door or sash into the frame, top and bottom.
CTC (center-to-center) The vertical measurement from the center point of the bottom through hole to the center point of the top through hole. Applicable for handlesets only.
Cup Escutcheon A door plate, for use on sliding doors, having a recessed panel to afford finger hold and to contain a flush ring and sometimes a cylinder, all being flush with the surface of the plate.
Cylinder (of a lock) The cylindrical-shaped assembly containing the tumbler mechanism and the keyway, which can be actuated only by the correct keys.
Cylinder Collar A plate or ring used under the head of a cylinder.
Cylinder Collar Spacer For use with deadbolts to accommodate 1-3/8" thick doors.
Cylinder Lock A lock in which the locking mechanism is controlled by a cylinder.
Cylinder Screw The set screw that holds a cylinder in place by preventing the cylinder from being turned after installation.
Cylindrical (locks and latches) A term used to describe bored locks, which have a cylindrical case into which a separate latch bolt case fits.

Hardware Terms D

Deadbolt (of a lock) A lock bolt having no spring action nor bevel, and which is operated by a key or a turn piece. Locking mechanism. Metal bolt which slides from door into frame preventing the door from opening. Security feature for exterior doors.
Deadlock A lock equipped with a deadbolt only.
Deadlocking Latch Bolt A latch bolt incorporating a plunger that is held in a retracted position when a door is closed, thus preventing the bolt from being retracted by end pressure
Dogging Device As used in exit devices, a mechanism that fastens the cross bar in the fully depressed position and retains the latch bolt or bolts in a retracted position, thus permitting free operation of the door from either side.
Door Bolt A manually operated rod or bar attached to a door providing means of locking.
Door Closer Bracket A device whereby a door closer may be installed on the frame rather than directly on the door.
Door Closer or Check A device combining a spring for closing and a compression chamber into which the liquid or air escapes slowly, thus providing a means of controlling the speed of the closing action.
Door Holder A device that holds a door open at one or more 0selected positions.
Door Pivot A hinging device embodying a fixed pin and a single joint. Most types include lateral fastening.
Door Stop A device to stop the swing or movement of a door at a certain point. Also an architectural term defining that part of a door frame against which the door closes.
Double Cylinder Entrance Handleset Deadbolt operated by key from either side. no turn knob. Frequently used when door has glass panes.
Double-Throw Bolt A bolt that can be projected beyond its first position into a second, or fully extended one, thus providing extra security.
Drawer Roller A device used to ease the sliding of a drawer open or shut, usually with a metal or fiber wheel rotating in a metal frame.
Drawer Slides A mechanism employing guides and rollers that guide and support the drawer, permitting easy operation.
Drivers The upper set of pins in a pin tumbler cylinder which, when activated by the springs, project into the plug until raised by insertion of the key.
Drop Escutcheon (or Key Plate) One having a pivoted plate that covers the keyhole.
Drop Ring A ring handle attached to a spindle that operates a lock or latch. The ring is pivoted but remains in a 0dropped position when not in use.
Dummy Cylinder A mock cylinder without any operating mechanism for use where effect is desired.
Dummy Trim Trim only, without lock. usually used on the inactive door in a pair of doors.
Dust-Proof Strike A strike with a spring plunger that completely fills the bolt hole when the bolt is not projected.
Dutch Door Bolt Device for locking together the upper and the lower leaves of a Dutch door.

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