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Chamberlain, LiftMaster, and Craftsman have interchangeable parts, primarily the gear and circuit boards. The greatest difference between the brands is that Chamberlain and Craftsman operate on a square shaped split-rail system, while LiftMaster consists of one single solid piece of inverted t-shaped rail.
Surface mount, push (scissor arm)—the operator is mounted on the wall above the door, on the approach side and pushes the door with a linkage of 2 arms. Surface mount, pull (track)—the operator is mounted on the wall above the door, on the swing side and pulls the door with an arm whose end slides in a track mounted on the door.
Modern fire standards often mandate that doors be fitted with crash bars in commercial and other occupancies where mass evacuation may be slowed by other types of door openers. They are sometimes intended solely for emergency use and may be fitted with alarms. However, in many buildings the crash bar is the primary mechanism for opening a door ...
In May 1954, the Alliance Manufacturing Company first produced its own garage door opener and called it Genie. [2] In 1983 the company entered the home and shop vacuum market, and in 1985 it changed its name to Genie Home Products. [2] Overhead Door Corporation purchased the company in 1994. [2] The Genie Company is headquartered in Mt. Hope ...
In grappling, side control (often also called side mount, cross mount, 100 kilos [1]) is a dominant ground grappling position where the top combatant is lying perpendicularly over the face-up bottom combatant in such a way that the legs are free and he or she exerts no control over the combatant on the bottom. The top combatant is referred to ...
A can opener (North American and Australian English) or tin opener (British English) is a mechanical device used to open metal tin cans. Although preservation of food using tin cans had been practiced since at least 1772 in the Netherlands, the first can openers were not patented until 1855 in England and 1858 in the United States.
The program, which was given the title Eye Opener, would incorporate a local/national format (with the intent to syndicate the program to other markets) similar to that of morning news programs on the major broadcast television networks, with three-minute-long national segments conducted in a more free-form style. [4]