Railway coupling
part · 1830 · Industrial Revolution
A device for joining railway cars; in Russia, the SA-3 automatic coupler.
Principles and materials it uses
- Wrought iron — is made of. A coupling is wrought iron.
- Lever — uses. It is locked with a lever.
Where it is used
- Diesel locomotive — is part of. A coupler to the train.
- Steam locomotive — is part of. A locomotive hooks up its wagons with a coupling.
- Electric locomotive — is part of. An electric locomotive pulls its wagons through a coupling.