Life Gun 2 : A gun that fires a special projectile to which is attached a lightweight rope, which is then pulled into position for use in the rescue of persons from buildings or inaccessible places
Ralph W. Burklin & Robert G. Purington, Fire Terms: A Guide to Their Meaning and Use, National Protection Association, Boston, MA 1980 USA. (Guide: Meaning and Use, Nat Prot Association Fr Srvc - Amer) {457}