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Company/Organization Sector Local Full-time Employment Ohio State University* Education: 29,685 The State of Ohio* Government: 22,030 JPMorgan Chase: Financial Activities: 16,975 OhioHealth* Health Care: 16,000 Nationwide* Financial Activities: 11,235 United States Government: Government: 10,800 City of Columbus* Government: 8,653 Columbus ...
In the armature, an electromotive force is created by the relative motion of the armature and the field. When the machine or motor is used as a motor, this EMF opposes the armature current, and the armature converts electrical power to mechanical power in the form of torque, and transfers it via the shaft. When the machine is used as a ...
Vertiv is an American multinational provider of critical infrastructure and services for data centers, communication networks, and commercial and industrial environments. ...
A commutator is a rotary electrical switch in certain types of electric motors and electrical generators that periodically reverses the current direction between the rotor and the external circuit. It consists of a cylinder composed of multiple metal contact segments on the rotating armature of the machine.
In the 1880s, the new company developed an early conveyor belt using its chain drive. In 1888, the Portage Strawboard Company had over 2 miles of Jeffrey Conveyor installed. [4] The company was an early adopter of electric motors, and one of the first American manufacturers to build a mining locomotive powered from an overhead wire, in 1888. [7]
The company remained a wholly owned subsidiary until 1981, when it became a division of Liebert Corporation upon the company's initial public offering. [4] In 1980, Liebert built a major manufacturing facility in Delaware, Ohio. [5] That year, Ralph Liebert's son, Larry L. Liebert (1945-2023) took over management of the company. [6]
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Ideal was founded in 1916 by J. Walter Becker as the Ideal Commutator Dresser Company in Chicago, Illinois, manufacturing commutator dresser stones. [6] In 1924, Becker relocated the company to its current location in Sycamore, Illinois. [7] By 1949, it had become the United States' leading producer of wire nuts. [8]