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Originally named Allen Manufacturing Company, the business produced hexagonal set screws and wrenches to fasten them. The terms "Allen wrench" (American English) and "Allen key" (British English) [3] are derived from the Allen brand name and refer to the generic product category "hex keys". W.G. Allen [4] filed the first related patent in 1909 ...
A Stockbridge damper is a tuned mass damper used to suppress wind-induced vibrations on slender structures such as overhead power lines, [1] long cantilevered signs [2] and cable-stayed bridges. The dumbbell -shaped device consists of two masses at the ends of a short length of cable or flexible rod, which is clamped at its middle to the main ...
Allen-Bradley is the brand-name of a line of factory automation equipment owned by Rockwell Automation. The company, with revenues of approximately US $6.4 billion in 2013, manufactures programmable logic controllers ( PLC ), human-machine interfaces, sensors, safety components and systems, software, drives and drive systems, contactors, motor ...
An inertia damper is a device that counters vibration using the effects of inertia and other forces and motion. [1] The damper does not negate the forces but either absorbs or redirects them by other means. For example, a large and heavy suspended body may be used to absorb several short-duration large forces, and to reapply those forces as a ...
Ethan Allen Interiors Inc. Storefront on Lexington Ave., New York City. Ethan Allen Interiors Inc. is an American manufacturer and retailer of home furnishings, incorporated in Delaware with executive offices in Danbury, Connecticut. As of June 30, 2023, the company reported net annual sales of $791.4 million. [2]
Dortch Stove Works is an historic stove manufacturing plant in Franklin, Tennessee. It was built in 1929 by Allen Manufacturing Company, then based in Nashville, Tennessee. During its manufacturing prime, the plant produced stoves and ranges under Allen Manufacturing Company, Dortch Stove Works, and Magic Chef Inc., as well as bedding and furniture under Jamison Bedding Company. [1] Now, the ...
Allen Edmonds is an American upscale men's shoe company based in Port Washington, Wisconsin. The company was established in Belgium, Wisconsin, in 1922 by Elbert W. Allen as Allen-Spiegal Shoe Company. [2] The company is one of the few companies to maintain manufacturing in the U.S. [3] and has been the choice for every U.S. president on inauguration day from Ronald Reagan to George W. Bush. [1]
Schaeffler torque converter with centrifugal pendulum absorber. A centrifugal pendulum absorber is a type of tuned mass damper. It reduces the amplitude of a torsional vibration in drive trains that use a combustion engine.
Harmonic balancer lower pulley on a four-cylinder engine. A harmonic damper is a device fitted to the free (accessory drive) end of the crankshaft of an internal combustion engine to counter torsional and resonance vibrations from the crankshaft. This device must be an interference fit to the crankshaft in order to operate in an effective manner.
Allen & Ginter was a Richmond, Virginia, tobacco manufacturing company formed by John F. Allen and Lewis Ginter around 1880. The firm created and marketed the first cigarette cards for collecting and trading in the United States. Some of the notable cards in the series include baseball players Charles Comiskey, Cap Anson, and Jack Glasscock, as ...