Abstract: An apparatus for transferring carriers from a first power line to a second power line through a power line discontinuous section. Each carrier has a dog engageable with each of the pivotable pushers on each of the power lines and a pusher raising cam having a dog receiving recess at its rear portion. The pusher includes a downward portion and a laterally extending horizontal portion at the lower end of the downward portion, the horizontal portion being formed with an upper pushing face and a lower pushing face on its front side and having a cavity in its bottom at the middle of the length thereof. The cam has a front lower portion, a rear higher portion having its top positioned at the same level as the top of the dog and a projection on the top of the front lower portion. The free line has a carrier standby section coextensive with the first power line near the discontinuous section and longer than the carrier.