Support means for a CRT beam adjustment device

Claim 1

Support means for exteriorly positioning and retaining a beam adjustment device formed a plurality of sequentially oriented annulate magnetic members on the neck portion of a cathode ray tube, said support means comprising: a cylindrical support sleeve formed of insulative material having substantially opposed alpha and beta end portions and a longitudinal axis therethrough, said sleeve having an internal diameter to facilitate sliding placement on said neck portion and an external diameter dimensioned to accommodate said annulate members positioned thereon, said alpha end portion having a terminus formed as an outstanding circumferential member to provide stop means for said annulate members, said beta end portion of said cylindrical sleeve having a plurality of spaced apart longitudinal slits therein oriented parallel with said axis to form a plurality of substantially similar tongue-like extensions of said sleeve, each of said extensions having at least one terminally oriented protuberance formed to extend radially outward therefrom to effect an outstanding circular array around the beta end of said sleeve, the surface of each protuberance oriented toward said annulate members being an angularly related surface sloping toward the body of said sleeve; a spacer ring dimensioned for sliding placement upon said sleeve, said ring being positioned thereon between said protuberances and said annulate members; and a ring-type band clamp having associated adjustable means and a circumferential dimensions less than that of said annular array of protuberances and greater than that of said sleeve, said band clamp being positioned between said protuberances and said spacer ring in a manner to abut said ring and ride on said sloping surfaces of said protuberances to simultaneously exert longitudinally directed pressure to positionally lock said annulate rings and circumferentially directed pressure to affix said support means upon said neck.