In an anti-skid chain with an inner retaining device (1) formed by a resilient steel hoop, a tensioning strand (6) bridging end parts (4, 5) of the steel hoop is used for tensioning and is guided over the tread of the tire to the outer retaining device (3). The deflection device (13), which deflects the tensioning strand (6) out of the region of the inner retaining device (1) to the tread, is held...

The dialkylphosphoric acid mentioned in the organic extract phase is at least partly saturated with cations, in particular calcium cations, magnesium cations and iron cations. At least one extraction stage is carried out at a temperature below 75 DEG C using an aqueous reextraction agent which contains hydrochloric acid, possibly together with soluble salts, in particular with magnesium chloride a...

The invention relates to new carbazic acid derivatives, a process for the preparation thereof and compositions-particularly feed additives and animal feeds-containing the same. The new compounds according to the invention correspond to the formula (I) R1=N-NH-COOR3 (I) wherein R1 stands for a C7-12 cycloalkylidene group, an indanylidene group or a group of the formula (IX) (IX) wherei...

In a process of heating and cooling charges in batch-process industrial furnaces, particularly in a process of cooling coils of steel wire or strip steel in bell-type annealing furnaces, the charge is heated and cooled in contact with circulated protective gas. The cooling time is shortened and the power input to the circulating fan is reduced by changing the composition of the protective gas so a...

An apparatus for the production of reconstituted tobacco foil comprises a double sheet former with two movable endless screens in a y-shaped arrangement. A wedge-shaped box fills most of the space where the screens approach one another and with its upper side forms a reservoir for the aqueous suspension, from which the foil is precipitated.

For the Contracting States BE, CH, DE, FR, GB, IT, LI, NL, SE 1. 2-(Z)-[Benzal]-cycloheptane-1 derivatives having the general formula : see diagramm : EP0095719,P10,F1 wherein : A represents an oxygen atom or a hydroxyimino group. For the Contracting State : AT 1. A process for preparing 2-(Z)-[Benzal]-cycloheptane-1 derivatives having the general formula : see diagramm : EP0095719,P11,F1 where...

An apparatus for forming a sprue and a communication hole in a vacuum-sealed mould. This method includes steps of: laying a shield film over a pattern and a sprue forming pattern or a communication hole forming pattern; assembling the pattern with a moulding flask; charging a charged material of particulate type into the moulding flask, and laying another shield film over the moulding flask, the c...