Abstract: A p- or n-conductive semiconductor material comprises a compound of the general formula (I) Pb1?(x1+x2+ . . . +xn)A1x1A2x2 . . . AnxnTe1+z??(I) where: in each case independently n is the number of chemical elements different from Pb and Te 1 ppm?x1 . . . xn?0.05 ?0.05?z?0.05 and n?2 A1 . . . An are different from one another and are selected from the group of the elements Li, Na, K, Rb, Cs, Be, Mg, Ca, Sr, Ba, Al, Ga, In, Tl, Si, Ge, Sn, As, Sb, Bi, S, Se, Br, I, Sc, Y, La, Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Mn, Re, Fe, Ru, Os, Co, Rh, Ir, Ni, Pd, Pt, Cu, Ag, Au, Zn, Cd, Hg, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu or n=1 A1 is selected from Ti, Zr, Ag, Hf, Cu, Gr, Nb, Ta.

Abstract: Apparatus monitoring and/or adjusting tensile force in a yarn (10) including at least three consecutive yarn deflecting elements (11, 12, 13) of which the central deflecting element (12) is displaceably held by a retention device (14) that is supported in such a way that the motion and/or position of the deflecting element (12) is substantially a function only of the tensile force F1 in one yarn segment, such segment being situated between the displaceable deflecting element (12) and only one of the two neighboring deflecting elements (11 or 13).

Abstract: A shuttle for ribbon looms comprises a housing and a bobbin rotatably supported in the housing for carrying a weft thread to be wound therearound. A tensioning device is provided in the housing for keeping the thread under constant tension while being unwound from the bobbin and running, the tensioning device including a frictionally rotatable roller around which the thread is wound, and means for adjusting the tension of the thread. A thread discharge eyelet is supported on the housing for discharging the thread therethrough out of the housing, the eyelet being located at the bottom of the housing and adjacent to the latter. The thread is directed from the bobbin through the tensioning device to the discharge eyelet.