herald (plural heralds) 1  A messenger, especially one bringing important news. 2  A harbinger, giving signs of things to come. ( 3 heraldry) An official whose speciality is heraldry, especially one between the ranks of pursuivant and king-of-arms. ( entomology) A moth of the species Scoliopteryx libatrix.
a fire nozzle weighs approximately  ten to fifteen pounds.
Four types of nozzles are used for the various effects: 1  208 Oarsmen â jets with a full range of spherical motion. 2  798 Shooters â shoot water upwards. 3  192 Super Shooters â send a water blast as high as 240 ft (73 m) in the air. 4  16 Extreme Shooters â send a water blast as high as 460 ft (140 m) (added in 2005)