| 摘要 |
<p>Described herein is an improved homogenising head in which a variable orifice can be readily provided. The head (10) comprises a casing section (12) and a plug section (14). The casing section (12) has an internally threaded portion (120) which has a series of notches (126) formed in the threads (124). The plug section (14) has an externally threaded portion (14) which has a series of flats (154) formed on the threads (152). The two threaded portions (120, 140) are engaged and the cooperation of the notches (126) and flats (154) define homogenising orifices through which the material being homogenised passes. The orifices so formed are variable in size depending on the relative positioning of the notches (126) relative to the flats (154).</p> |
