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2. The 10 Best Dog Stairs and Ramps to Give Your Pup a Leg Up - AOL

   www.aol.com/10-best-dog-stairs-ramps-140000042.html

   Here are the best dog stairs and ramps for your pooch. ... it may be wise to try a ramp instead. On the plus side, each step is 16 inches wide, wider than other options and ideal for larger breeds ...

3. Digital automatic coupling - Wikipedia

   en.wikipedia.org/wiki/Digital_automatic_coupling

   Level 3: Level 2 plus automatic coupling of power cables (allows uncoupling with switch) Level 4: Level 3 plus automatic coupling of data cables (allows uncoupling at a signal) Level 5: Level 4 plus remote automatic uncoupling; For the DAC the function levels are narrowed down to specific functions. The function level DAK-3 must connect the ECP ...

4. Tightlock coupling - Wikipedia

   en.wikipedia.org/wiki/Tightlock_coupling

   On a standard-gauge railway, the nominal mounting height for the coupler (rail top to coupler center) is 33 inches (838 mm), with a 34 + 1 ⁄ 2 ± 1 inch (876 ± 25 mm) maximum height on empty cars and 31 + 1 ⁄ 2 ± 1 inch (800 ± 25 mm) minimum height on loaded cars.

5. Railway coupling by country - Wikipedia

   en.wikipedia.org/wiki/Railway_coupling_by_country

   AAR couplers on 1,000 mm (3 ft 3 + 3 ⁄ 8 in) metre gauge [7] and some passenger (FIAT 7131 DMUs) and freight rolling stock on standard and broad gauge. Small knuckle coupler with slot in knuckle for link and pin couplers on 750 mm (2 ft 5 + 1 ⁄ 2 in) Scharfenberg-type semi-automatic couplers on modern EMUs, DMUs and some passenger rolling ...

6. Janney coupler - Wikipedia

   en.wikipedia.org/wiki/Janney_coupler

   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 ...

7. Gladhand connector - Wikipedia

   en.wikipedia.org/wiki/Gladhand_connector

   A pair of gladhand connectors between railroad cars A gladhand connector on a trailer. A gladhand connector or gladhand coupler is an interlocking hose coupling fitted to hoses supplying pressurized air from a tractor unit to air brakes on a semi-trailer, [1] or from a locomotive to railway air brakes on railroad cars. [2]