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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 ...
Electric gates alone, however solid and imposing they may be, cannot guarantee a completely secure environment electric locks, are often needed to boost the locking effectiveness of the gate motors. Electric gates are recommended to be used in combination with other security features to install a full security system.
In the UK (and other parts of the EU), 'insulated' roller garage doors are available, using an aluminum lathe filled with polyurethane foam for thermal and acoustic insulation. Concerning thermal insulation, the roller door has a typical insulation R-value of 4.9 to 5.2. A sheet steel garage door has a typical insulation R-value of 0.5 to 2.7.
The electric overhead garage door opener was invented by C.G. Johnson in 1926 in Hartford City, Indiana. [1] Electric Garage Door openers did not become popular until Era Meter Company of Chicago offered one after World War II where the overhead garage door could be opened via a key pad located on a post at the end of the driveway or a switch inside the garage.
Gate from Bucharest (Romania) Art Nouveau gate of Castel Béranger (Paris) Candi bentar, a typical Indonesian gate that is often found on the islands of Java and Bali. A gate or gateway is a point of entry to or from a space enclosed by walls. The word derived from old Norse "gat" [1] meaning road or path; But other terms include yett and port.
Floodgates, also called stop gates, are adjustable gates used to control water flow in flood barriers, reservoir, river, stream, or levee systems. They may be designed to set spillway crest heights in dams , to adjust flow rates in sluices and canals , or they may be designed to stop water flow entirely as part of a levee or storm surge system.
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