Definitions for "Hot Box"
The end of each axle on a pair of wheels under a freight car extend into a journal box, and rotates under a brass sleeve. If there is not lubricant between the brass and the axle, then friction will cause that journal to run hot. Hot boxes are also possible on axles equipped with roller bearings.
Overheated journal or bearing. Also called hub. This was a frequent cause of delay in the old days but is virtually nonexistent on trains that are completely equipped with ball-bearings. Trainmen are sometimes called hotbox detectors
an overheated wheel journal
Keywords:  runner, traps, defensive, team, bases
When the defensive team traps a base runner between bases.
Above ground enclosure for outdoor meters.