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95Fail Safe and Fail Secure Electric Locking Devices
Definition Basically: Fail Safe = power off, it's unlocked Fail Secure = power off, it's locked Electric locking devices include: Electric strikes Electromagnetic locks Electromechanical locks ...
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87How to quit your job and leave with your head held high
So you've decided to quit your job, you may be leaving to pursue another position, you might be leaving for personal reasons, or perhaps you have become fed up with whats been happening in your office. No...
7 comments
86Hardware for Aluminum Storefront Doors
See also: Exit Device and Panic Hardware Basics Electrifying an Aluminum Storefront Opening Door Closer Basics Aluminum and glass storefront doors usually have the characteristic that they have much...
0 comments79Exit Device and Panic Hardware Basics
Introduction The terms "crash bar", "panic bar", and "exit device" all mean the same thing. Exit devices are used on doors in the path of egress in buildings built to accomodate numbers of people. Facilities...
0 comments75Exit Devices with Electric Latch Retraction
Almost all exit device manufacturers offer the option of electric latch retraction on their touchbar-style exit devices. Different manufactures may call it by other names such as 'latch pull-back' or 'remote...
4 comments
74Bullets and firearm injuries
The bullet or missile hitting the human body will first stretch the skin and penetrate into soft tissue or bone.After penetration of the bullet into the skin,the skin will partially return to its original...
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67Airlines, I want a lifejacket AND a parachute under my seat!
One thing that baffles and mystifies me about "in flight emergency procedures and equipment", is the futility of it all. It seems to me that the whole display put on by your friendly air Stewards and...
24 comments
91Discount Warehouse Shopping Comparison - Costco versus BJ's versus Sam's Club
Discount Warehouse Shopping Comparison - Costco versus BJ's versus Sam's Club. My opinon and cut on what I like and dislike.
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81Exit Device Option Overview
See also: Exit Device and Panic Hardware Basics Exit Devices with Electric Latch Retraction What Is Delayed Egress? Exit Device Trim and Controls This article covers a few of the options available...
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74Learn to Use a Roundabout: Read the Signs
What is it about a roundabout that confounds so many really bad drivers? I really can’t see why some people just completely and utterly suck at using them or even understanding the concept for that matter....
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