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- Dual_coupling abstract "It is possible to mount both buffers and chain and knuckle couplers on the same car, provided that one can swing out of the way. Alternatively, either a lug to hold the 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 SA3 coupler built by SAB WABCO.Locomotives and some freight cars of the Indian Railways are fitted with a 'transition coupler' that incorporates a screw coupling within a knuckle coupler: the knuckle coupler remains in position and does not swing away when not in use. The screw coupling is mounted on a hinge on the opposite side of the knuckle coupler. Most Indian freight cars use the knuckle coupler alone, without buffers, whereas passenger coaches almost exclusively use screw couplers and buffers. Exceptions are the new LHB coaches imported from Europe, and a few other makes of carriages converted to use knuckle couplers.Some Russian locomotives and wagons have buffers together with the central coupler. When coupling to Finnish equipment, a short chain with a block that fits in the central coupler is placed on the Russian side, backing up and compressing the buffers so that the chain can be laid on the hook. (That is also the common way of coupling locomotives to or from wagons, faster than unscrewing the link.) British locomotive-hauled passenger carriages adopted a dual coupling system in the 1950s. They have retractable buffers and a central Buckeye automatic knuckle coupler that lowers to reveal a hook for a screw-type chain coupling. When in use, a pin through the buckeye shank rests in the conventional hook. No chain is provided on dual-coupled vehicles, since the chain on the other vehicle can be used when the knuckle coupler is out of the way (down). Inter-stock coupling was with the automatic coupler (with the buffers retracted), while connection to the locomotive was with the buffer-and-chain system with a screw coupler. Today this dual coupling system has been adopted for all loco-hauled passenger trains in Great Britain to allow faster shunting operations.".
- Dual_coupling thumbnail VR_Electric_Locomotive_Helsinki_Finland.jpg?width=300.
- Dual_coupling wikiPageID "42617872".
- Dual_coupling wikiPageLength "3599".
- Dual_coupling wikiPageOutDegree "21".
- Dual_coupling wikiPageRevisionID "632882546".
- Dual_coupling wikiPageWikiLink Barrier_vehicle.
- Dual_coupling wikiPageWikiLink Buffers_and_chain_coupler.
- Dual_coupling wikiPageWikiLink Category:Couplers.
- Dual_coupling wikiPageWikiLink Hinge.
- Dual_coupling wikiPageWikiLink Indian_Railways.
- Dual_coupling wikiPageWikiLink Indian_locomotive_class_WAG-9.
- Dual_coupling wikiPageWikiLink Janney_coupler.
- Dual_coupling wikiPageWikiLink Railway_coupling.
- Dual_coupling wikiPageWikiLink Railway_coupling_conversion.
- Dual_coupling wikiPageWikiLink SA3_coupler.
- Dual_coupling wikiPageWikiLink SAB_WABCO.
- Dual_coupling wikiPageWikiLink Sri_Lanka_Railways_S12.
- Dual_coupling wikiPageWikiLink Tightlock_coupling.
- Dual_coupling wikiPageWikiLinkText "Dual coupling".
- Dual_coupling wikiPageWikiLinkText "dual".
- Dual_coupling wikiPageWikiLinkText "transition couplings".
- Dual_coupling hasPhotoCollection Dual_coupling.
- Dual_coupling wikiPageUsesTemplate Template:Div_col.
- Dual_coupling wikiPageUsesTemplate Template:Div_col_end.
- Dual_coupling wikiPageUsesTemplate Template:Gallery.
- Dual_coupling wikiPageUsesTemplate Template:Railway_coupling.
- Dual_coupling wikiPageUsesTemplate Template:Reflist.
- Dual_coupling wikiPageUsesTemplate Template:Train_topics.
- Dual_coupling subject Category:Couplers.
- Dual_coupling comment "It is possible to mount both buffers and chain and knuckle couplers on the same car, provided that one can swing out of the way. Alternatively, either a lug to hold the chain is cast in the body of the coupler or a chain is mounted on top of the coupler.".
- Dual_coupling label "Dual coupling".
- Dual_coupling sameAs m.010gp1nz.
- Dual_coupling sameAs Q16801024.
- Dual_coupling sameAs Q16801024.
- Dual_coupling wasDerivedFrom Dual_coupling?oldid=632882546.
- Dual_coupling depiction VR_Electric_Locomotive_Helsinki_Finland.jpg.
- Dual_coupling isPrimaryTopicOf Dual_coupling.