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The link-and-pin coupling was the original style of coupling used on North American railways. After most railroads converted to semi-automatic Janney couplers, the link-and-pin survived on forest railways. While simple in principle, the system suffered from a lack of standardisation regarding size and height of the links, and the size and ...
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 ...
On April 1, 1873, Janney filed for a patent titled "Improvement in Car-Couplings" describing the knuckle-style couplers that are in use on railroads today. He was awarded U.S. patent 138,405 on April 29, 1873. [1] He died on June 16, 1912, in Alexandria, Virginia and was buried in Ivy Hill Cemetery. The City of Alexandria named one of their ...
↑ The 249 was available in two versions. The early (1993–1996) version had no differential lock and the viscous coupling spanned the center differential, creating a 50 ⁄ 50 torque split. The later version (1996 and beyond) had a viscous front drive, creating a rear torque bias, but included a provision to lock the center differential.
Narrow gauge flat wagons, 750 mm (2 ft 5 + 1 ⁄ 2 in).Note the single buffer with a hook on the right side and a chain on the other. On some narrow-gauge lines in Europe, and on the Paris Metro, a simplified version of the loose-coupler is used, consisting of a single central buffer with a chain underneath.
The Scotch yoke (also known as slotted link mechanism [1]) is a reciprocating motion mechanism, converting the linear motion of a slider into rotational motion, or vice versa. The piston or other reciprocating part is directly coupled to a sliding yoke with a slot that engages a pin on the rotating part.
The yoke was connected at the top to the reach rod leading to the reverser. A pair of swing links which hung from the upper pivot on the yoke. A main link which pivoted in the middle from the lower end of the swing links and whose lower end was connected to the eccentric rod (which in turn connects to the return crank on the driver, as in the ...
The part of a coupler that attaches to the frame of the car or locomotive; may be equipped with a pneumatic cushion depending on a freight car's design cargo (e.g. an autorack). Alternately, the pinned double bars coupling a steam locomotive to its tender. Driver or engine driver The operator of a locomotive. [76] Driver only operation (DO or DOO)