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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.
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.
Modern openers have “force settings” that make the door reverse if it encounters too much resistance while closing or opening. Any garage door opener sold in the United States after 1992 requires safety eyes—sensors that prevent the door from closing if obstructed. Force settings should cause a door to stop or reverse on encountering more ...
A two-pulley jackshaft redirecting belt power from horizontal to vertical. A jackshaft, also called a countershaft, is a common mechanical design component used to transfer or synchronize rotational force in a machine. A jackshaft is often just a short stub with supporting bearings on the ends and two pulleys, gears, or cranks attached to it.
An automatic door closer, more often called a "door opener", opens the door itself, typically under the control of a push button, motion detector or other device, and then uses a motion sensor or proximity detector to determine when it is safe to close it.
Roger Kynard "Roky" Erickson (July 15, 1947 – May 31, 2019) was an American musician and singer-songwriter. He was a founding member and the leader of the 13th Floor Elevators and a pioneer of the psychedelic rock genre in the 1960s, as well as horror rock in the 1970s and 80s.
Robbins was born Anthony J. Mahavoric in North Hollywood, California, on February 29, 1960. [3] The eldest of three children, his parents divorced when he was seven. He is of Croatian descent from both sides of his family. [4]
Taxi Driver is a 1976 American neo-noir psychological drama film [6] [7] directed by Martin Scorsese and written by Paul Schrader.Set in a morally decaying New York City following the Vietnam War, it stars Robert De Niro as veteran Marine and taxi driver Travis Bickle, whose mental state deteriorates as he works nights in the city.
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