Abstract: The invention is directed to a composition containing from 45 to 99 weight percent of a permanent-magnetic and/or ferromagnetic metal-containing compound and from 1 to 55 weight percent of a polymer of formula IHO--?--CO--R.sub.1 --CO--X--Y--Z--!.sub.n --H (I)wherein R.sub.1 is phenyl, naphthyl, cyclohexyl, cyclohexenyl, or a C.sub.1 to C.sub.4 alkyl-substituted derivative thereof, and, if R.sub.1 is phenyl, the carboxy groups are in ortho, meta or para position to each other;X, Z are O or NR.sub.2, wherein R.sub.2 is H or C.sub.1 to C.sub.4 alkyl;Y is (CH.sub.2).sub.m or phenyl, cyclohexyl or cyclopentyl, and m is from 1 to 12; andn is an integer.Furthermore, the invention is directed to a process for producing said composition, a magnetic and a non-magnetic molded article made of said composition, the production of same and the use of said composition.

Abstract: The object of the present invention is a polyamide composition containing, in reference to the polyamide composition 0.1 to 1 wt. % terephthaldialdehyde and/or its acetals of C.sub.1 --C.sub.4 alcohols and optionally 3 to 30 wt. % melamine and/or melamine cyanurate as well as a process for the production of the polyamide, a process to increase the shock resistance, notched impact resistance and viscosity of flameproof, halogen-free polyamides, and a process to increase the mass of such polyamides.

Abstract: A returning system for rail-borne transporting carts without self-driving means is provided with an auxiliary drive system which has an auxiliary drive wheel in the form of a friction wheel. The friction wheel clamps, for transporting a cart and cooperating with a contact pressure part with suitable parts of the transporting cart and transfers the latter from a transporting track to a return track located under the transporting track.

Abstract: Transport carts without internal drive which are bound to rails are moved in a returning system on a transport line from a common main drive. In the end area of the transport line, a secondary drive system is provided so that the transport carts are transferrable along a vertical curve into an inverted position onto a return line which is disposed parallel beneath the transport line and is provided with a second main drive system.

Abstract: Transport carts without internal drive which are bound to rails are moved in a returning system on a transport line from a common main drive. In the end area of the transport line, a secondary drive system is provided so that the transport carts are transferrable along a vertical curve into an inverted position onto a return line which is disposed parallel beneath the transport line and is provided with a second main drive system.