Plating racks and methods of racking articles for electroplating

Claim 1

AN ELECTROPLATING RACK, COMPRISING A PAIR OF VERTICALLY EXTENDING METAL SPINES OF FLAT BAR SHAPE, EACH FORMED WITH A DOWNWARDLY OPENED V-SHPED HOOK AT ITS UPPER END, AND THE UNDER SURFACE OF SAID HOOKS BEING BARE ON THE INSIDE TO ENGAGE A BUS BAR ON THE INSIDE, EACH SPINE HAVING A MULTIPLICITY OF THROUGH BORES FOR ATTACHMENT OF RACK TIPS, AND EACH SPINE HAVING A PAIR OF APERTURES AT ITS UPPER END BELOW ITS HOOK AND ANOTHER APERATURE AT ITS LOWER END, A CROSS BAR CARRIED BY THE LOWER ENDS OF THE SPINES AND HAVING REGISTERING APERTURES, A U-SHAPED UPPER CROSS BAR CARRIED BY THE UPPER ENDS OF SAID SPINES AND HAVING APERTURES REGISTERING WITH THE UPPER PAIR OF APERTURES IN EACH SPINE, ALL THE SAID CROSS BAR APERTURES BEING THREADED, A THREADED BUSHING IN EACH THREADED CROSS BAR APERTURE, SAID BUSHING HAVING AN ANNULAR SHOULDER ENGAGING THE CROSS BAR IN EACH CASE AND HAVING AN ENLARGED CYLINDRICAL BODY WITH A TAPERED GROOVED QEND PORTION HAVING CONVERGING SHARP EDGES BORDERING ITS GROOVES, A THREADED SHANK IN SAID BUSHING, THE BUSING HAVING A THREADED BORE FOR SAID SHANK, SAID SHANK PASSING THROUGH AN APERTURE IN A SPINE AND HAVING A TAPERED THREADED MEMBER ON THE SHANK ENGAGING THE OTHER SIDE OF THE SPINE, A THICK INSULATION COVERING OVER THE SPINES AND CROSS BARS EXCEPT IN THE APERTURES, AND SAID CROSS BAR INSULATION HAVING AN INSULATING COLLAR SURROUNDING EACH BUSHING AND HAVING A THIN RADIAL FLANGE ON EACH COLLAR SEALING AGAINST SAID SPINE INSULATION, AND AN INSLUATING CAP NUT HAVING A BOR EFOR ROTATABLY ENCLOSING SAID THREADED MEMBER, AND HAVING A SIMILAR BORE THREADED TO RECEIVE SAID SHANK END, TO HOLD THE CAP IN SEALING ENGAGEMENT WITH THE SPINE INSULATION, THE THREADED MEMBER DRAWING THE SHARP EDGES OF THE BUSHING INTO CUT TING CONTACT WITH THE METAL IN THE SPINE APERTURES AND ALSO EFFECTING A TIGHT SEAL BETWEEN THE THIN RADIAL FLANGE AND THE SPINE INSULATION.