Couplings

• Couplings in these pipes serve to quickly disconnect the engine when the run to the fire is to be made. Edward W. Byrn. 十九世纪发明进展.
• This air passing through a train pipe connected by hose couplings between cars charges an auxiliary reservoir under each car. Edward W. Byrn. 十九世纪发明进展.
• The year 1900 is to witness the compulsory adoption of automatic car couplings on all cars. Edward W. Byrn. 十九世纪发明进展.

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