Hydraulic Hoist 1 : A power-operated mechanism or system which uses hydraulic pressure, to raise various kinds of fire department equipment, including aerial ladders, elevating platforms, and tower-ladders
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}