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The diagram from Beard's 1897 coupler patent [1]. Janney couplers were first patented in 1873 by Eli H. Janney (U.S. patent 138,405). [2] [3] Andrew Jackson Beard was amongst various inventors that made a multitude of improvements to the knuckle coupler; [1] Beard's patents were U.S. patent 594,059 granted 23 November 1897, which then sold for approximately $50,000, and U.S. patent 624,901 ...
Two or more passenger or freight cars may be attached by means of a drawbar rather than a coupler. At each end of the permanently coupled vehicles there is a regular coupler, such as the North American Janney coupler or the Russian SA3 coupler. The use of a drawbar eliminates slack action.
DEMCO remained a wholly owned subsidiary of Banta Company, Inc. until 1978 when DEMCO's management, including president and CEO Wall, acquired the company's stock in a leveraged buyout. [6] Wall assumed full ownership of the company in 1988, remaining the controlling owner until 2006, and becoming Chairman Emeritus and passing the business on ...
Dellner is represented in India by a total of 170 employees at two locations: a service center for couplers and gangways is located in Noida in the state of Uttar Pradesh, and Dellner has a production facility for gangways and couplers in Mevalurkuppam near the southern Indian port city of Chennai.
A coupler connecting a crank and a slider in a single slider crank mechanism is often called a connecting rod, however, it has also been used to refer to any type of coupler. There are three basic types of planar four-bar linkage, depending on the use of revolute or prismatic joints:
Quick couplers (also called quick hitches) are used with construction machines to allow the rapid change of working tools or buckets and attachments on the machine. They remove the need to use hammers to manually drive out and insert the mounting pins for attachments.
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