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Raynor — the company's line of garage door openers for professional installers. This line of professional installers is slightly less common than LiftMaster. Craftsman — re-branded Chamberlain models sold at Sears. Those products have a "139" model prefix to denote that the Chamberlain Group made them for Sears.
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.
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 ...
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.
A Crocodile of the Swiss Federal Railways.Each set of 6 driving wheels is driven by a jackshaft between the driving wheels, gear-driven by a pair of traction motors. A jackshaft is an intermediate shaft used to transfer power from a powered shaft such as the output shaft of an engine or motor to driven shafts such as the drive axles of a locomotive.
The 8500 model has a wheelbase from 128 to 201 in (3.3 to 5.1 m), is powered by an International HT 570. Its front axle capacity is 10,000 lb (4,500 kg) or 12,000 lb (5,400 kg). Rear single axle has a capacity of 23,000 pounds (10,000 kg). Rear tandem axle has a capacity of 40,000 lb (18,000 kg).
The L-series came in a total of four size ranges, designated by GVWR. As with previous Ford heavy-truck tradition, gasoline-engine trucks received a three-digit model number, while diesel-engine trucks were given a four-digit model number. L-600/L-6000 and L-700/L-7000 series were Class 6/7 medium-duty trucks, typically sold as straight trucks.
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