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15 sats \ 1 reply \ @Aardvark OP 9 Jan \ parent \ on: Ever wonder about the lines going from a semi tractor to a trailer? alter_native
We call them glad hands here. But it looks like the same thing as palm couplings.
Also fun fact while I think of it, iirc Edison had a business partner called Westinghouse and it was him who I believe designed the first air brakes for locomotives
It worked so well, they were adopted into road freight worldwide
So when you see wabco, which is a very common trademark, it stands for westinghouse anti braking system
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