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SA3 couplersClick here for animation of couplingSA3 detailsEnd view of SA3 coupler, with release lever to the left.
SA3 couplers (also known as СА3 or СА-3 couplers per the typical foundry stamp on top of these couplers, meaning "Советская Автосцепка, 3" in Russian or "Soviet Auto-latch 3" in English) or Willison coupler and Russian coupler are railway couplings used primarily in Russia and states influenced by the former Soviet Union, such as Finland, Poland, and Mongolia.[1]
Russian railways originally used buffers and chain couplers during Imperial era, however these had several disadvantages: their draft load was limited, they were susceptible to buffer lock, and they were not semiautomatic like the North American Janney couplers. Conversion to Janney couplers (as Japan and Australia had) was considered, as was development of a new design. The Willison coupler was patented in 1914 in Germany and in US 1916 by English locksmith John Willison from Derby, England. The Knorr-Bremse company bought the invention in 1912 and it started to be used in Germany for some heavy trains and some suburban trains in Berlin and Paris. In the 1930s, the Soviets improved on this design and then decided to make this coupler standard across the Russian railway system.
^"Picture Gallery - Directory: /pix/de/misc/coupling". www.railfaneurope.net. Retrieved 8 December 2022.
in Russian or "Soviet Auto-latch 3" in English) or Willison coupler and Russian coupler are railway couplings used primarily in Russia and states influenced...
coupler, which is used in CSI border countries such as Finland or Ukraine. The coupler is compatible with both SA3 and screw coupling. It is an SA3 coupler...
Boy Advance game SA3coupler, an automatic coupler for railway use This disambiguation page lists articles associated with the title SA3. If an internal...
rolling stock on a train Janney coupler SA3coupler Scharfenberg coupler for multiple unit passenger cars Quick coupler, used in construction machines to allow...
COUPLERS AND DRAFT GEAR Adapter piece between Janney coupler and SA3coupler Patent US1194109 A, Patent US1194110 A Patent 643581 A Double shelf coupler...
UIC, or UK coupler center buffer and chains coupler Digital automatic coupling (DAC) GF coupler Henricot coupler H2C coupler Janney coupler, also known...
The SA3coupler (Soviet Automatic coupler, model 3) used in Russia has several advantages over the Janney coupler used in the United States. The SA3 coupler...
York Central RR TypeH TightLock Coupler Made AAR APT Standard In 1947 For Passenger Stock Trains Magazine Article Coupler Adapter: Janney To SA3coupler...
Whatever the advantages of the modern SA3coupler, it is not as widely used as the AAR and is in the minority. The SA3coupler has been used in a train of 43...
chain is cast in the body of the coupler or a chain is mounted on top of the coupler. This is also done with an SA3coupler built by SAB WABCO. Locomotives...
railroad cars during a head-on impact. Buffer stops for a knuckle coupler or an SA3coupler (centrally positioned between the two rails) Buffer stops with...
trains have been using the Soviet SA3coupler. However, LKAB wanted to also try Janney couplers (also known as AAR coupler, used in much heavier trains in...
principle, Tomlinson couplers and SA3couplers. Dellner has also developed its own type of coupler head, the automatic coupler type 12. Dellner has also...
Russian-gauge network, where SA3 automatic couplers are used. Some research has been undertaken to choose an automatic freight coupler compatible with the Soviet...
SA3coupler. However, LKAB wanted to try Janney couplers (also known as AAR coupler, used in much heavier trains in USA and South Africa), as the SA3...
24,700 hp). All locomotives would have automatic couplers, ranged from Janney couplers to SA3couplers. Several designs were short listed with passenger...
the USSR and USA) Шаферин pp.17 Шаферин pp.18 M636C. "Advantages of SA3coupler over American Jenney auto". Retrieved August 20, 2019.{{cite web}}: CS1...
couplers (also known as AAR coupler). While the first pair of locomotives had a Janney couplers, the rest of the first batch were equipped with SA3 couplers...
sleeper Stage 1 upgrade to 25T completed in 2019. SA3 for locomotive hauled rolling stock Scharfenberg coupler for multiple unit passenger trains 1.6% (1 in...
vehicles, although there are plans to develop an automatic coupler compatible with the Russian SA3. See Railway coupling conversion.[citation needed] The...
couplers (also known as AAR coupler). While the first pair of locomotives had a Janney couplers, the rest of the first batch were equipped with SA3 couplers...
motor-generators which power the engineer's controls. The cars are coupled together with the SA3coupler, which is standard on Soviet rolling stock and allows vertical...
No need for shunter to climb between buffers. Couplings based on AAR and SA3 already have automated mechanical couplings, so some of the advantageous...
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