Abstract: A system to transport solids in liquid media, especially in the field of maritime and land transportation of fruits or vegetables in the agricultural produce area, or of any product having to be transported in liquid media for their protection against environment and the medium.

Abstract: A system to transport solids in liquid media, especially in the field of maritime and land transportation of fruits or vegetables in the agricultural produce area, or of any product having to be transported in liquid media for their protection against environment and the medium.

Abstract: The present invention relates to optical tellurite glasses for optical waveguide amplifiers and oscillators, and process for producing them. The object was to provide, with a high yield, optical tellurite glasses for oscillators and optical waveguide amplifiers in planar and fiber form which have good melting and processing properties and a high crystallization stability and a low water content. This is achieved by a special glass composition (mol %): 1 TeO2:  65-78 ZnO:   2-23 PbO:   1-23 (where total ZnO + PbO   15-25) Nb2O5: 0.5-12 La2O3 and/or other rare earth oxides: 0.2-8  (where total Nb2O5 + La2O3  0.7-16) Metal halides: 0.

Abstract: A method and apparatus are disclosed for degassing the pressure fluid of a hydraulic system, in which a vacuum is maintained in the free space above the pressure fluid in the fluid reservoir of the hydraulic system by a vacuum pump. The vacuum pump has a selective pumping action, by virtue of which permanent gases present in the free space are withdrawn but vapors of the pressure fluid present in the free space are not withdrawn. Pressure fluid entering the reservoir from the hydraulic system is passed over a degassing surface to promote separation of the permanent gases in the pressure fluid from the fluid. A compensating line is provided between the vacuum pump and the reservoir for returning to the reservoir the nominal amounts of pressure fluid withdrawn from the reservoir by the pump. Valves provided in all fluid lines leading to and from the reservoir maintain the vacuum in the reservoir during system shut-downs.