Adjustable needle nozzle for resin reagents mixer - needle end has tapered longitudinal groove and is adjusted longitudinally

摘要

Adjustable-section nozzle at the inlet of a mixing chamber allows regulation of small quantities used in synthetic resin reactions in a mixing head. A needle nozzle moves in its inlet and has at least one external tapered face or groove along its length. Arrangement permits feed adjustment down to a few g/sec. without gradually changing over time.