| 摘要 |
966,243. Spacing overhead conductors. ANDRE RUBBER CO. Ltd. Dec. 3, 1962 [Dec. 5 , 1961], No. 43477/61. Heading H2C. A device for spacing conductors of an overhead transmission line comprises a rigid hub having a number of cavities, each with an opening at its periphery, plurality of arms each having at one end a knob, similar in shape to but smaller in dimension than the cavity in which it is housed, and an elastomeric material at least partly embracing each knob in each cavity. As described, each of four arms 24 has at one end a conventional cable clamp 30 and a knob 25 at the other, a neck 29 being formed between the arm and the knob. The knobs are placed inside four symmetrically disposed cavities 13 of a hub 10 comprising plates 11 and 12 bolted together. The abutting faces of the plates 11 and 12 have corresponding recesses 20 which form the cavities 13 and peripheral openings 19 leading to the cavities through which the arms 24 extend, openings 19 being such that a clearance is provided between each neck 29 of the arms and the wall of the corresponding opening 19. Resilient movement of the arms is achieved by making resilient joints between cavities and the knob housed inside them by surrounding the knob by an elastomeric material 26 in the form of a continuous shell which is compressed by the wall of the cavity aided by the bolts 27. If desired the elastomer 26 may be cemented or bonded to the wall of the cavity or to the knobs or to both by heating before or after the assembly of the device. |
