Definition of patrol box in English:

patrol box

noun

  • 1US (now historical) a roadside box containing telegraphic equipment enabling a patrolman to send messages.

  • 2An equipment box used while camping, trekking, or patrolling.

  • 3British (now historical) a roadside telephone kiosk enabling members of the public to call a patrolman in the case of a breakdown.

Origin

Late 19th century; earliest use found in The Daily Northwestern.