Abstract: An electric appliance is described which has a casing composed of two identically built casing shells. A spring locking hook for the snap-on mount on a mounting rail is integrated into each of the casing shells, which are assembled in mirror inversion to one another, yielding a simple, inexpensive and easy-to-assemble design composed of only a few parts.

Abstract: The invention builds on an arrangement for the masking of field lines in an electroplating plant for the treatment of essentially plate-shaped workpieces, which are loaded into the bath suspended from a workpiece holder, wherein a mask is provided which is vertically adjustably guided on the plating tank. To permit the vertical adjustment of the mask regardless of the shape and, in particular, the thickness of the workpiece to be treated, as well as the manner in which the workpiece is held on the workpiece holder, and further, so that said mask(s) can optionally mask the lower or the upper area of the workpiece(s) to be treated, a hold-down clamp (21) is provided, attached to the workpiece holder (6) in such a way as to be height-adjustable and lockable in the particular position, and moves the masks (12, 13; 14, 15) located laterally to the workpieces (5) into a preselected position as the workpiece holder (6) is loaded into the treatment station (1).

Abstract: In a process for the production of carbon fibers from high boiling bituminous substances in which a purified and polymerized concentrated carbon fiber precursor is spun into fibers which are oxidized and then carbonized and optionally graphitized, the improvement comprising adding to the carbon fiber precursor just before spinning 2 to 10% by weight of a solvent in which the precursor is insoluble or only slightly soluble under normal conditions and mixing the resulting mixture under hypercritical conditions for the solvent for at least 10 minutes without gas or solid inclusions formed in the fiber and neoformatgion of solids is prevented.

Abstract: Wood that is especially suited for the manufacture of resonating bodies, is improved according to a process in which small amounts of reactive components of thermosetting polymers are introduced into the wood shortly before or during a heat treatment under pressure.

Abstract: A novel process for the selective removal of cadmium ions from aqueous media such as sewage by contacting the aqueous media with an effective amount of at least one water-insoluble organic polysulfide compound to selectively remove the cadmium ions and separating the polysulfide compounds.

Abstract: A process for preparing a mixture capable of hardening when exposed to atmospheric moisture, but stable when stored in the absence of moisture, comprises mixing a liquid monomer, oligomer and polymer, liquid oligomer or liquid polymer having at least one terminal mercapto group with a latent hardener comprised of a paste containing anhydrous Na.sub.2 CrO.sub.4 and a water-soluble solvent, such as dimethyl formamide, dimethyl sulfoxide, methanol, ethanol, glycol, glycerine or dioxane. The resulting mixture is useful as a caulking compound.

Abstract: A storage-stable, very quickly hardenable, one-component sealant comprises a mercapto-terminated liquid polymer having uniformly distributed therein a curing agent for the polymer, wherein the curing agent is in a micro-encapsulated state.