Talk:Dual coupling

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Adapter between Janney and SA-3

Does there exist an adapter that will fit into the Janney contour and the SA-3 contour at the same time between the two couplers when they are lined up face to face? See Bogie exchange#China. Peter Horn User talk 01:25, 21 April 2019 (UTC) and Peter Horn User talk 01:28, 21 April 2019 (UTC)[reply]

See Bogie exchange#China Peter Horn User talk 00:30, 22 April 2019 (UTC)[reply]

The adopter does exists,but it is just temporary ones (for emergency ). See https://patents.google.com/patent/US4102459
Probably it's made from casting or assembled parts by welding rolled steel sheets.
It's just like the file on the article page, not for using mainline with long term.
Their standard coupler heights are too close (Chinese AAR-850~890to Russian SA3-1060), meddle each other.
To solve the problem, coupler exchange. The movie exists here.
https://www.youtube.com/watch?v=BT8ibUlNVu0&t=183s
I don't know AAR's regulation (like coupler never exchange), but Europe, Russia and China are regulary changing coupler at the ex-soviet border. User:tadzu 04:19, 22 April 2019 (UTC)[reply]

@Tadzu:
Coupler exchange is bloody nonsense. If done at all, it would most probably be more time consuming than bogie exchange. The adapter was invented to be used at China/Russia as there is no need for it anywhere in North America. Inventions are made to fill a need and to be used where they are needed. Peter Horn User talk 14:54, 22 April 2019 (UTC)[reply]

@Peter Horn:Bloody nonsense,I think so.Russia had to choice AAR ones.
But SA-3 was introduce 1930s~1950s,and opposed to sellect different type coupler by Joseph Stalin. Today,only some passenger cars(and a few carspart of the train)bogie&coupler exchange and go over the border,but most of the trains are passed over the loads on the border stations.
The russo-sino international passenger trains are reduced the exchanging coupler to minimum. Only outers ends of the train.
So,likeYiwu–London railway line and some trans-eurasia freight rail services are not working enough.
The containers are transfered to each flatcars owned by EU,ex-soviet and china.So, polish SUW 2000axles are not used.
If,Russia had chosen AAR coupler in 1930s,only 1 fleet equipped SUW 2000 axle could run through from China to London,without transshippig loads.

I also think it is ridiculous,waste of the time. But attachment adoptor does not work enough,there is no way.user:tadzu 15:53, 22 April 2019 (UTC)[reply]

@Tadzu: What do you mean with not work enough?

@Peter Horn:2 meaning there are.

1:Trans-Eurasia Line has a big pottentiallity for the global economy. One can send goods within a third or less time-about 10-14 days- by ships (40-50days) western Europe-Far east Asia each other,and a half or less payment of the airplane, if different coupler problem did not exist.
Now the problem does exist,less usage.
2:The adoptor can't bear to the pulling force on mainline trains.^{[citation needed]}
If, you make them much stronger, nobody can handle-put on, take put out.The compact type (now using,limited only emergency) weighs over 40 kg,hold by 2or3 staff.
Could you describe how handle such heavy adopter in shunting yards?

The coupler adapter is this size at least.
user:tadzu 12:46, 23 April 2019 (UTC)[reply]

The grammar above somewhat tidied up. 40 kg adapter may not be a such a problem. Construction workers in Mexico regularly handle cement sacks that weigh 50 kg and think nothing off it. I can ask one of my friends in Mexico to send a photo of any brand, if need be. If it heavier than 50 kg, a small mobile crane could be designed to handle the adapter. Peter Horn User talk 14:46, 23 April 2019 (UTC)[reply]

@Tadzu:
Ok, coupler exchange is possible (coupler exchange}. But this is only because the coupler shanks and the pockets at the end of the cars have been especially and purposely designed to make this possible. A heavy adapter can also be handled by an overhead crane. Peter Horn User talk 15:31, 23 April 2019 (UTC)[reply]
Peter Horn User talk 05:07, 8 August 2021 (UTC) Peter Horn User talk 05:13, 8 August 2021 (UTC) Peter Horn User talk 05:19, 8 August 2021 (UTC) Peter Horn User talk 05:33, 8 August 2021 (UTC)[reply]

Additional images

Janney+Shibata dual coupler
on JR.EF63 locomotive connects with 115series EMU at Yokokawa station There is a pivot in common allowing both to swing.

@663highland: Hi Highland
Can you extract additional dual coupling images from ja:連結器 and Ja:田端運転所 (by "copy and paste", I don't know Japanese) by User:Toshinori baba ja:User:Toshinori baba, complete with translations, like the image at the right?
Regards, Peter Horn User talk 02:41, 21 April 2019 (UTC) and Peter Horn User talk 02:47, 21 April 2019 (UTC)[reply]

Added second image. Each image shows the respective couplers in a different position since they have the pivot in common. Peter Horn User talk 17:15, 22 April 2019 (UTC)[reply]

@Peter Horn: I find 2 movies.
Both were shotted in Usui Pass Railway Heritage Park(碓氷峠鉄道文化むら Usui-tōge Tetsudō Bunka-mura). Some EF63 exhibits movable condition.
1:swiching coupler-Knukle to Shibata-mitchaku,and put back.
2:EF63's uncoupling and coupling.
The dual couplings of the EF63 has no release handle,because it made from one-piece molding cast.
The pin does exists just for holding to selected position,knuckle or Shibata-mitchaku. user:Tadzu 09:27, 23 April 2019 (UTC)[reply]

Precisely, that is the purpose of a vertical pin, to allow the two to swing and thus change position. Peter Horn User talk 15:37, 23 April 2019 (UTC)[reply]

Adaption between Janney coupler and buffer and chain coupler

This would merely mean taking a flatcar and mount two buffers on each end creating an barrier wagon. This woud be useful for the train de Charlevoix Peter Horn User talk 23:20, 16 October 2021 (UTC)[reply]