| 摘要 |
1285518 Spray producers VAGNONE & BOERI di AG BOERI & C 14 June 1971 [25 June 1970] 27777/71 Heading B2F In a sprayer supplied with compressed air for atomising viscous abrasive spray material, the rate of flow of spray material, through an optionally replaceable tube 64, is varied by adjusting the extent to which a cut-off diaphragm 50 can be retracted from the mouth of the tube 64, on admitting air to cylinder 36. Plunger 24 is retracted to abut a longitudinally adjustable bolt 31, having a locking ring. When the pressure in cylinder 36 falls, spring 35 returns plunger 24 to close the mouth of tube 64 and interrupt the supply of spray material. |
