| 摘要 |
Device for the automatic stopping of motorized pumps activated by the difference in or lack of pressure exerted by the liquid which supplies it. Said depressive effect is controlled in a cylinder 1 which is assisted by springs 6, a plunger or piston 3 housed therein returns to its previous situation through the distending effect of the springs 6, acting in this stroke simultaneously with the mechanism for stopping the motor of the motorized pump. The end of said piston 3 opposite the entry for the liquid A consists of means 4 for connection to the stopping device and adaptation member 5 where the recovery springs 6 are secured via one end and via the other end to a fixed point 7 of the base of the cylinder 1. <IMAGE>
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