Lid for large containers for mixing powders has locking device with arms which are connected to nut and bolt with device comprising guide groove into which pin is inserted to control locking and unlocking of lid against flange on rim

摘要

The container lid is fitted with a locking device (10) with locking arms (23) which are connected to a nut (14) and bolt (20). A control device (28) consisting of a guide groove into which a pin (26) is inserted controls the locking and unlocking of the lid against a flange on the container rim.