Monitor nozzle

1.A nozzle capable of turning completely round in a horizontal plane and having a limited play in a vertical plane, used in hydraulic mining, fire-extinguishing apparatus, etc.
References in periodicals archive ?
Jim Lynch, Yukon Placer Mining's pump operator, said, "The only problem I ever had with the unit was the monitor nozzle was so powerful it would swing around and take off the exhaust stack.
Contract awarded for actuating cylinder assembliesand safety relief valves and ball valves and fluid filter elements and vehicular direction lights and hydraulic oil tanks and electronic components assemblies and sleeve spacers and round headlights and non metallic hose assemblies and monitor nozzles and warning lights and round lights and fog lights and marker lights.
It consists of flame, smoke, and gas detectors, emergency shut down stations, spill impoundment with sump pumps, and monitor nozzles.
Although the monitor nozzles have been dry for almost a hundred years, nature has continued the erosion begun by man.