Search results
Results from the WOW.Com Content Network
The joint does not allow translation, or sliding linear motion, a constraint not shown in the diagram. Almost all assemblies of multiple moving bodies include revolute joints in their designs. Revolute joints are used in numerous applications such as door hinges, mechanisms, and other uni-axial rotation devices. [2]
Crash bar doors in a school, with upper vertical rod latches A crash bar (also known as a panic exit device, panic bar, or bump bar ) [ 1 ] [ 2 ] is a type of door opening mechanism which allows users to open a door by pushing a bar.
Metal fire-resistance rated door with a lockset consisting of a locking latch bolt operated by lever handle with an escutcheon that encompasses the locking mechanism.. A lockset (alternatively lock set) is the hardware and components that make up the locking or latching mechanism that can usually be found on a door or other hinged object but can also include sliding doors and dividers. [1]
Door clearances at the door edge of the door frame (Wood Door), on the pull side of the door, do not exceed clearances listed in 4.8.4 (the clearance under the bottom of the door shall be a maximum of 3/4") and 6.3.1 (top & edges 1/8") Metal door (top & edges up to 3/16")
In civil engineering, clearance refers to the difference between the loading gauge and the structure gauge in the case of railroad cars or trams, or the difference between the size of any vehicle and the width/height of doors, the width/height of an overpass or the diameter of a tunnel as well as the air draft under a bridge, the width of a lock or diameter of a tunnel in the case of watercraft.
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
Most door closers use oil-filled hydraulic dampers to limit closing speed, and allow for soft closing. Other types use a friction-based mechanical speed control mechanism. [26] “Controlled closers” use adjustable hydraulic valves to variously regulate the door’s opening and closing speed, latch speed, and delayed action return.
Engineering fits are generally used as part of geometric dimensioning and tolerancing when a part or assembly is designed. In engineering terms, the "fit" is the clearance between two mating parts, and the size of this clearance determines whether the parts can, at one end of the spectrum, move or rotate independently from each other or, at the other end, are temporarily or permanently joined.