| 摘要 |
<p>1,256,933. Covering cables. MESSERSCHMITT-BOLKOW BLOHM G.m.b.H. 2 April, 1969 [6 April, 1968], No. 17392/69. Heading B8G. [Also in Division H1] A winding apparatus suitable for winding two oppositely wound covering layers in an electric cable (see Division H1) comprises a fixed shaft 25 on which is rotatably mounted a sleeve 27 carrying a flyer 26, and which can be driven through a belt pulley 28. A reel 30 of silk threads is mounted by a bushing 29 free to rotate about the sleeve 27 but which is braked by a brake band (not shown) acting on a disc 31. A winding head 33 is rigidly connected to the flyer 26, which head 33 has a bore 32 and is associated with a thread guide 34. The fixed shaft 25 has an axial bore 35 provided at the upper end with a guide plate 36 (Fig. 5, not shown) having a central aperture (38) and other apertures (40-42) relatively disposed at angles of 120 degrees. By means of guide plates 36 and 24, the conductors 14 are symmetrically enclosed by supporting threads 16a, 16b, 16c and then covered by a first covering layer 18a produced by clockwise rotation of the winding head 33 and the guide 34 to unwind the silk threads from the reel 30. The second covering layer 18 is wound in the opposite direction by the winding head 54 of a second winding apparatus. The conductors and surrounding supporting threads are fed vertically to at least the first winding apparatus and the conductors 14 are subjected to a braking force relative to the supporting threads e.g. at 53 while being fed through the winding apparatus.</p> |
