Hardware Terms(T-W)五金术语T-W

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HardwareTermsT

THandle Acrosshandleforactuatingtheboltofalockandusedinplaceofaknob. THinge Asurfacehingewiththeshortmemberattachedtothejambandthelongmemberattachedtothedoor. TemplateHardware Atermindicatinganyitemofhardwarethatismadetotemplate;thatis,exactlymatchingthemastertemplatedrawingastospacingofallholesanddimensions. Thimble Thesocketorbearingattachedtoanescutcheonplateinwhichtheendoftheknobshankrotates. Three-PointLock Adevicesometimesrequiredonthree-hourfiredoorstolocktheactiveleafofapairofdoorsatthreepoints. Threshold Astripfastenedtothefloorbeneathadoor,usuallyrequiredtocoverthejointwheretwotypesoffloormaterialmeet. Throw(ofadeadboltorlatchbolt) Measurementofthemaximumprojectionwhenboltisfullyextended. Thumbpiece Componentlocatedontheoutsideofahandlesetwhich,whendepressed,retractsthelatchbolt. TransmissionCase Roundhousingmountedonthebackoftheoutsidehandle.Convertsupanddownmotionofthumbpiecetoatwistingmotionsolatchcanbeoperated. TransomBar Thatpartofadoorframethatseparatesthetopofadoororawindowfromthebottomofthetransom. TransomCatch Afastenerappliedtoatransomandhavingaringbywhichthelatchboltisretracted. TransomChain Ashortchainusedtolimittheopeningofatransom;usuallyprovidedateachendwithaplateforattachment. TransomLift Averticallyoperateddeviceattachedtoadoorframeandtransombywhichthetransommaybeopenedorclosed. TubularLock(orLatch) Atypeofboredlock. Tumbler Aguardorobstructionthatpreventsoperationofaboltexceptbyinsertionoftheproperkey. Turnpiece Asmallknob,leverorteeturnwithspindleattachedforoperatingthedeadboltofalockoramortisebolt.AlsotermedThumbTurn.Usedonlyonsinglecylinderoperations. Two-PointLatch Adevicesometimesrequiredonthree-hourfiredoorstolocktheinactiveleafofapairofdoorsattopandbottom.

HardwareTermsU

UnitLock SeePreassembledLock Universal Atermusedtodescribealock,adoorcloserorotherdevicethatcanbeusedondoorsofanyhandwithoutchange.

HardwareTermsV

VerticalSpringPivotHinge Aspringhingemortisedintotheheelofadoorandfastenedtothefloorandheadwithpivots.

HardwareTermsW

Ward Anobstructionprojectingfromthelockcaseofsideofakeyholeintendedtoprevententranceorrotationofanimproperlycutkey.

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