Magnetic contactor

Claim 1

IN A MAGNETIC CONTACTOR, THE COMBINATION WITH A BASE MEMBER OF PLASTIC MATERIAL, SAID BASE MEMBER SUBSTANTIALLY ENCASING A COIL AND MAGNET DEVICE SUCH THAT ONLY THE TOP OF THE MAGNET PROJECTS A SHORT DISTANCE ABOVE AND CENTRALLY OF THE TOP SURFACE OF THE BASE MEMBER, OF AN ARC BLOCK ALSO OF PLASTIC MATERIAL AND PROVIDING ON ITS TOP SURFACE A PLURALITY OF LONGITUDINALLY EXTENDING CHANNELS FORMED BY UPSTANDING SIDE WALLS AND SPACED CENTRALLY LOCATED UPSTANDING PARTITIONS, THE BOTTOM WALL OF ONE OF SAID CHANNELS BEING DISPOSED IN A PLANE ABOVE THE REMAINING CHANNELS, SAID ARC BLOCK HAVING A TRANSVERSE OPENING THEREIN AND WHICH IS IN ALIGNMENT WITH THE PROJECTING END OF THE MAGNET, A PAIR OF STATIONARY CONTACTS FIXED TO THE BOTTOM WALL OF EACH CHANNEL SO THAT A CONTACT IS LOCATED ON EACH SIDE OF THE OPENING, A CARRIER MOUNTED IN THE OPENING AND ADAPTED TO HAVE MOVEMENT TOWARDS AND FROM THE MAGNET, SAID CARRIER HAVING A PLURALITY OF OPENING THEREIN EXTENDING FROM SIDE TO SIDE, A BRIDGING CONTACT IN EACH OPENING AND PROJECTING BEYOND ITS OPENING ON EACH SIDE, WHEREBY THE BRIDGING CONTACTS COACT WITH THEIR RESPECTIVE STATIONARY CONTACTS WHEN THE CARRIER IS ACTUATED, AN ARMATURE FIXED TO THE CARRIER AT THE BASE THEREOF ADJACENT THE MAGNET, AND A COIL SPRING CONFINED BETWEEN AND HAVING CONTACT WITH THE ARMATURE AND THE TOP SURFACE OF THE BASE MEMBER.