MELIO BETTINA WINS NO. 27.Tim Bivins Of Cleveland OffersLittle Opposition Before 8,987.CLEVELAND, O., Nov. 18 (UP) —Former light - heavy weight champion Melio Bettina of Beacon, N. Y., registered his 27thstraight victory since joining the heavyweight class by defeating Jim Bivins of Cleveland in *a 10-round bout last night at the Cleveland Arena.Bettina, whose 181 pounds gave him an eigh-pound advantage, won as he pleased with the Cleve- ■ land Negro, who has also deserted the lightweight ranks, offering little opposition.A crowd of 8,987 paid $17,500.