Battery cable connector

Claim 1

A battery cable connector for motor vehicle batteries having substantially cylindrical connecting lugs comprising, a cap of electrically insulating material for the lug, a radial sleeve-like extension piece projecting from the cap in communication through a noncircular aperture with the interior of the cap, an electrical contact piece of complementary shape to the aperture and having a toothed contact surface for engagement with the lug, a blind threaded hole in the end of the contact piece opposite the contact surface, an electrically conductive conical element with its base supported by the bottom of the blind hole, an electrically conductive clamping sleeve screw threaded into the blind hole, an easily detachable closure lid for the end of the extension piece remote from the cap, said lid having an opening for the cable, bayonet joint formations between the extension piece and the lid, a compression spring located between the lid and the contact piece, and an elastically longitudinally compressible socket extending outwardly from the lid to extend over the cable, said socket being so formed that its end distal from the lid does not grip the cable too tightly so that the socket can be pushed together elastically in the direction of the lid.