Electrical connector

Claim 1

A SWITCH PIN FOR A CROSSBAR SWITCHING BLOCK OF THE CLASS HAVING A PLURALITY OF LAYERS OF CONDUCTORS HELD IN AND SPACED APART BY AN INSULATING MATRIX, THERE BEING A PLURALITY OF CYLINDRICAL HOLES THROUGH THE MATRIX AND CONDUCTORS, THE SWITCH PIN BEING ADAPTED TO ENTER THE ENGAGE AT LEAST A PORTION OF THE INSIDE WALL OF ONE OF SAID HOLES SO AS CONDUCTIVELY TO CONNECT A PAIR OF SAID CONDUCTORS, SAID PIN COMPRISING: AN UNPIERCED UNITARY SPINDLE MADE ENTIRELY OF INSULATING MATERIAL AND HAVING A LONGITUDINAL AXIS; A PAIR OF AXIALLY SPACED-APART SHOULDERS ON THE SPINDLE FACING EACH OTHER AND EXTENDING AROUND THE PERIPHERAL SURFACE AND AXIS THEREOF; A CONDUCTIVE SLEEVE MOUNTED ON SAID SPINDLE BETWEEN SAID SHOULDERS, SAID SLEEVE HAVING AN AXIS, TWO EXTREME AND MEDIAL PERIPHERAL PORTIONS, AND AN AXIAL SLIT EXTENDING FOR THE FULL LENGTH THEREOF, THE EXTREME PORTIONS EACH HAVING AN OUTER TRANSVERSE DIMENSION GREATER THAN ANY OUTER TRANSVERSE DIMENSION OF THE MEDIAL PORTION, THE MEDIAL PORTION HAVING A LENGTH SUCH AS TO PERMIT SLIGHT CHANGES IN THE LATERAL DIMENSION OF ONE EXTREME PORTION WITHOUT APPRECIABLY CHANGING THE SAID LATERAL DIMENSION OF THE OTHER EXTREME PORTION, THE EXTREME PORTIONS BEING AXIALLY SPACED APART TO CORRESPOND TO THE SPACING OF THE CONDUCTORS TO BE CONNECTED, WHEREBY THE SWITCH PIN MAY BE INSERTED INTO ONE OF SAID HOLES, AND THE EXTREME PORTIONS WILL ENGAGE RESPECTIVE CONDUCTORS AND COMPENSATE FOR SLIGHT DIFFERENCES BETWEEN HOLE DIAMETERS THEREIN, AND THE MEDIAL PORTION WILL LEAVE A CLEARANCE BETWEEN ITS OUTER SURFACE AND THE WALL OF THE HOLE IN THE INSULATING MATRIX SO AS TO LEAVE THE CONTACT BETWEEN THE CONDUCTORS AND THE EXTREME PORTIONS UNIMPEDED, THE SLEEVE BEING MADE OF INHERENTLY SPRINGY SO AS TO PERMIT A LATERAL COMPRESSION TO PROVIDE FOR SPRINGSO AS TO PERMIT A LATERAL COMPRESSION TO PROVIDE FOR SPRINGBACK THEREBY TO ENGAGE THE WALL OF SAID HOLE, THE SLEEVE BEING OF AXIAL LENGTH SUBSTANTIALLY EQUAL TO THAT OF THE AXIAL SPACING BETWEEN THE SHOULDERS SO AS TO BE AXIALLY RESTRAINED THEREBY.