| 摘要 |
The sand blasting machine includes a container (1) holding the sand, with an output orifice (2) at the bottom, the orifice being controlled by a valve (3). A compressed air input is controlled in sync. with the operation of the valve. A sand blasting lance (6) is connected to the output orifice by a coupling (5). Within th machine there is an automatic control regulating the flow of sand. This is connected to a pointer (8) cooperating with the side walls (7) in order to vary the diameter of the sand passage. This pointer (8) is hinged to the centre (10a) of the v-shaped lever (10). One end of the lever assembly is linked to a control screw (11) whilst the other end is connected to a double action control jack (17). <IMAGE> |
