Support for elongated electrodes of electron beam tube

Claim 1

IN AN ELECTRON BEAM DEVICE IN WHICH THE ELECTRON BEAM IS PROJECTED THROUGH AN EXTENDED SPACE, AN ELECTRODE AND ENVELOPE ASSEMBLY COMPRISING: A SLEEVE OF INSULATING MATERIAL DEFINING AN AXIS THERETHROUGH; FIRST AND SECOND CONDUCTIVE WASHERS DISPOSED INDIVIDUALLY ACROSS RESPECTIVE OPPOSITE ENDS OF SAID SLEEVE, EACH OF SAID WASHERS HAVING A CIRCUMFERENTIALLY LIMITED PORTION PROJECTING OUTWARDLY FROM THE EXTERNAL SURFACE OF SAID SLEEVE AND THE OPENING IN THE WASHER DEFINING A FINGER PROJECTING RADIALLY INWARD PART WAY TO SAID AXIS AND WITH SAID WASHERS BEING MUTUALLY ROTATABLE ABOUT SAID AXIS UPON ASSEMBLY WITH SAID SLEEVE TO DISPOSE SAID FINGERS IN SELECTED ANGULARLY SPACED FIXED RELATIVE POSITIONS; AND A PAIR OF ELONGATED ELECTRODES, DISPOSED INSIDE AND GENERALLY PARALLEL WITH SAID SLEEVE, EACH CONDUCTIVELY SECURED AT ONE END TO AN INNER END OF A RESPECTIVE ONE OF SAID FINGERS AND EACH PROJECTING AS A CANTILEVER MEMBER IN THE DIRECTION OF THE OTHER OF SAID WASHERS AND SAID ELECTRODES TOGETHER IN CORRESPONDENCE WITH SAID SELECTED POSITIONS DEFINING ACROSS SAID AXIS A TRANSVERSE FIELD REGION.