1. A slicing machine (10, 10') including a grinding tool (21, 22) for the rotating circular blade (12) the grinding tool having a pivotally supported grinding disc (21) and, if need be, a trimming stone (22) and being mounted in the inner space (32) of a protective hood (18; 51) which protectively encloses an edge portion (56) of the circular blade (12), the protective hood (18; 51) being connecte...

This invention provides an understanding of the structure and porosity of soil and stony regions. The method is characterized by release of a measuring gas in the region being investigated and its penetration through the investigated region to several places where it is captured and measured. Thus, the measured data from the various measuring locations provides the structure and the porosity of th...

The present invention relates to novel compounds of the formula (I) wherein R1 is hydrogen, a silyl group or an acyl group, R2 is methyl, ethyl, is propyl or sec-butyl, and R is hydrogen, unsubstituted or substituted straight chain or branched C1-Cl18alkyl, an unsubstituted or substituted cycloaliphatic group containing 3 to 10 carbon atoms, unsubstituted or substituted C2-C6alkenyl, unsu...

The present invention relates to novel compounds of the formula (I) wherein R1 is hydrogen, a silyl group or an acyl group, R2 is methyl, ethyl, is propyl or sec-butyl, and R is hydrogen, unsubstituted or substituted straight chain or branched C1-Cl18alkyl, an unsubstituted or substituted cycloaliphatic group containing 3 to 10 carbon atoms, unsubstituted or substituted C2-C6alkenyl, unsu...

Plastics material mesh structures are made by providing a starting material having a pattern of primary holes or depressions and smaller secondary holes or depressions between the primary holes or depressions and stretching the plastics material to orientate the zones between adjacent holes or depressions to form orientated strands. A first stretch in a single direction produces intermediate struc...

1. Process for manufacturing a thin carrierless polymeric membrane especially made of cellulose derivatives and carrying a design, whereby first a support is imprinted with the design, then the casting mass serving for the production of the polymeric membrane is poured onto the imprinted support and whereby finally the polymeric membrane is removed from the support after solidification while takin...

1. Single sideband premodulated carrier frequency system for the transmission of communications channels (N1 , N2 ) with a first converter stage constructed as premodulation stage, with a second converter stage, in which the communications channels are translated by means of intermediate frequency carriers (fZ1 , fZ2 ) into the intermediate frequency position and behind which is connected an inter...

1. A thixotropic self-curing refractory vibration mass based on zirconium silicate for achieving a vibration density of at least 3.6 g/cm**3 , characterized by the following chemical composition (in % by weight) : 24 to 29% SiO2 10 to 20% Al2 O3 0.2 to 0.8% P2 O5 0 to 1.5% K2 O+Na2 O+LiO2 0 to 0.5% Fe2 O3 0 to 0.05% ...

A hollow body (e.g. a container) as well as a method and an apparatus for its manufacture in which an axially directed wall of the body primarily is made of oriented and/or crystallized plastics material. A tubular preform (10d) is fixed in a circumferential region (13d) in the vicinity of the mouth edge (14d) of the preform between mechanical forming devices (30,40), after which the devices, duri...

A hollow body (e.g. a container) as well as a method and an apparatus for its manufacture in which an axially directed wall of the body primarily is made of oriented and/or crystallized plastics material. A tubular preform (10d) is fixed in a circumferential region (13d) in the vicinity of the mouth edge (14d) of the preform between mechanical forming devices (30,40), after which the devices, duri...

A process for precipitating out heavy metals from sulphate-ion-containing wastewaters by treating the water with sulphate-reducing bacteria. These bacteria will reduce the sulphate ions to hydrogen sulphide, which itself will precipitate out the metal ions in the form of metal sulphides. According to the invention the bacteria are cultured in one or more bioreactor(s) in the presence of a nutrient...

PCT No. PCT/SU80/00134 Sec. 371 Date Mar. 18, 1982 Sec. 102(e) Date Mar. 18, 1982 PCT Filed Jul. 31, 1980 PCT Pub. No. WO82/00536 PCT Pub. Date Feb. 18, 1982.An electrical signal converter with step variable gain comprises a variable gain circuit having its control inputs connected to the outputs of a sequencer for varying the gain of the variable gain circuit according to a step function of time....

In compositions for the preservation of wood and timber materials and in the preparation of these compositions composed of 1-30 % by weight of fungicide or fungicide mixture and/or 0.3-15 % by weight of insecticide or insecticide mixture and over 55 % by weight of an organic, oily or oil-type solvent or solvent mixture of low volatility which is soluble in this mixture and which can also contain o...