Door Hardware Comes of Age

December 2007

Educational Advertising Section Provided by Rocky Mountain Hardware

 

Spring Latch A latching mechanism operated by the handles.

 

CYLINDERS are the portion of a lock where the key is inserted to lock or unlock the set. There are several different kinds common to entry sets:

Mortise Cylinders
Mechanisms that are threaded into mortise locks secured by a set screw through the edge of the lock and vary in length for different door thicknesses.

 

 

Mortise Cylinders   Mechanisms that are threaded into mortise locks secured by a set screw through the edge of the lock and vary in length for different door thicknesses.

 

Rim Cylinders   Mechanisms used in dead bolts and are mounted with screws from the opposite side of the door. They do not vary in length, but the mounting screw and tailpiece length varies according to the door thickness.

 

Amerian or U.S. Cylinders   Refers to the type of cylinder used with several types of multi-point lock sets. These cylinders are attached to the escutcheon and do not vary in length, but the tailpiece length varies according to the door thickness.

 

European Profile Cylinders   The other type of cylinder used with multipoint lock sets. These cylinders slip through the exterior escutcheon, the door and the interior escutcheon and are held in place by a set screw through the edge of the lock and vary in length for different door thicknesses.

 

 

ADDITIONAL TERMINOLOGY:

Active Door
The primary door in a pair of doors and typically has an operable handle set.

Butt Hinges
Hinges with one leaf mortised to the jamb and one leaf mortised to the edge of the door.

Cabinet Roses
The back plates behind the cabinet knob or pull.

Clavos
Decorative nails typically applied to the surface of the door.

Edge Pulls
Used to retrieve a pocket door from the pocket.

Emergency Release
This term refers to the capability of a lock to be unlocked from the exterior side in case of an emergency situation. This is an aspect of most interior privacy lock sets.

Flush Pulls
Recessed pulls used on sliding doors such as pocket or bypass doors.

Handing
Indicates where the door is hinged and the direction it swings. Please see chart below.

 

 

Inactive Door
The secondary door in a pair of doors. The inactive door is often secured with flush or surface bolts and typically has inoperable handles.

Ornamental Hinge Strap
A decorative piece of metal applied to the surface of the door to mimic a strap hinge.

Strap Hinges
Hinges that have one leaf applied to the surface of the jamb and one leaf attached to the surface of the door.

Spring Assist
Each handle has an additional spring attached to the handle and the escutcheon that returns the lever, knob or ring to the neutral position; this mechanism eliminates sagging handle.

 

 

Handcrafted in Idaho since 1994, Rocky Mountain Hardware has become known as the industry leader in solid bronze architectural hardware, including: door, cabinet and window hardware, sinks, faucets, kitchen and bath accessories, tile, lighting and more. Designed to work in both residential, as well as commercial settings, Rocky Mountain Hardware offers thousands of styles, each available in nine patina finishes. Only the finest art-grade bronze is used in their castings—bronze, which is certified to contain 72% recycled content. Because of this, all Rocky Mountain Hardware can contribute towards earning USGBC’s LEED® Credits MR4.1 and MR4.2.

 

Originally published in the December 2007 issue of Architectural Record.