Abstract: A connector device comprising female and male connector housings and a lock means, one of the connector housings being provided with a resilient tongue piece possessing a check claw and the other connector housing being provided with a crosspiece adapted to receive the check claw into fast engagement and the lock means being provided with an insertion piece possessing a check means. After the paired connector housings have been fastened to each other and the check claw of the resilient tongue piece has been brought into fast engagement with the crosspiece to establish electric continuity between the opposed terminals incorporated within the connector housings, the insertion piece possessing the check means is inserted into the space formed below the resilient tongue piece and the check means is brought into fast engagement with the support legs of the crosspiece.

Abstract: An arrangement for deriving intake negative pressure from an internal-combustion engine, comprising a carburetor in the latter, with an intake for an air -- fuel mixture, a throttle valve therein for regulating the mixture, and at least one longitudinal passage therein for guiding the mixture toward the engine; an intake passage leading from the carburetor to the engine; which latter also has an exhaust passage leading therefrom; wherein the throttle valve has a shaft substantially transversally disposed in one of the passages of the carburetor, the latter being fitted with a discharge opening in a side wall of the intake passage to derive negative passage from the carburetor for regulating and controlling the engine operation; the discharge opening being provided in the flow of the mixture, in an area that is directed downstream from the throttle-valve shaft; whereby to avoid accumulation and discharge of condensed fuel from the carburetor to the discharge opening.