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UJa Haua Qiasigis m 1WT • I m i I IBT now for • I II I II II = stern tube sea ® I^J • H BJ IlJ I itv materials. E Future Badaruall Stan Tuba Saals No r retrofits and new installations, a split ster seal. Using time-tested marine qual- ity Engineered for top performance in extreme operating conditions. Proven in heavy ice and at peripheral shaft speeds as high as 10 m/s. Providing flexibility to accommodate shaft movement and vibration. For fixed pitch and controllable pitch propeller systems with shaft diameters up to thirty-nine inches. The split design permits disassembly for inspection and maintenance—without withdrawing the tail- shaft, propeller or rudder. Discover how Ceder- vall seals by Bird-Johnson Company can solve past problems. And contribute to a safe, eco- nomical future. Contact our Product Specialist, Mr. G. Robin King. V »* , S * » v» . * - ' * m • , • # • « f m* • * . > » «'»* •• - v in*" .;* t;- •v *** , * % ^V r - -IB * .r.'V* it ** * 5 • Vi"_ ., /JBf * , »s * » . • •V BIRD-JOHNSON COMPANY 110 Norfolk Street, Walpole, MA 02081, (617)£68-9610 v. ••MB* (••HP"
