hot box

"Guess we got a hot-box," said a sleepy passenger across the aisle.

Conductor, you had a hot box a few miles back; don't you think it should be looked to after passing Macclenny?

He'd have missed the Harrison City game if the train hadn't been held up on account of a hot box.

He pulled the cord of the air-whistle, and after the stop stood by in sour silence while the crew repacked the hot box.

The hot box so delayed the train that Jacksonville was not reached until the middle of the night.