Excavator etc. with movable jib arm - has loosening element at side facing grab jaw in latter swivel range AB DE4218502A At the free end of the jib arm (2) is fitted a working element (4), opposite to which is mounted a grab jaw (6). The working element is swivelable across the jib arm and arrestable in each respective position. The grab jaw is pivotally mounted independently of the working element in its swivel plane. The grab jaw is reciprocally driven w.r.t. the working element. At the side, opposite to the grab jaw, the jib arm has a loosening element (8), protruding into the swivel range of the grab jaw. Pref. the loosening element has a tapered cutting edge. USE/ADVANTAGE - For heavy earth work with a facility for loosening the dug material during lifting. AN 93396177 TI Method to manufacture heat insulation - uses extra process for homogenous mixing of binding agant and insulating material, and subsequent flush with CO2 gas

摘要

The method uses pourable small-particle insulating material, to insulate hollow spaces, which have difficult access. A temperatur-dependant binding agent is added to the material, to dampen and harden it. Insulating material and binding agent are mixed homogenously before being blown into the hollow space. After this, the space is flushed with CO2- gas. The binding agent is blown onto the material by a machine (1), which is connected to the hollow space to be insulated. The machine has a mixer section (10) with cylindrical housing and central motor-driven mixer shaft with mixer blades. A spray nozzle (19) is located in the top of one housing end wall (18). ADVANTAGE - minimum use of binding agent with maximum wetting of insulating material