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Ilia Haua Qesigns ^L.m iwr • vi| |wr H^ • I • i^LJ I I I stern tube sea H •LJ • H BJ BJ rn ity materials. E Future Sadsruall Slam Tula Saals • > * • •.. / • , '»V - ' .. • V * fmBS • * i ' Now for retrofits and new installations, a split ster seal. Using time-tested marine qual- it 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. . #>, f »»t •, * * *» ***** »* * »• _ * * * *t «> « • *» »* " * • 1 # • ... 9» mm- . " ' w , <>" ' . • SI s.^fyi" -,' .v. JO . - J - ' •>«- ."•* k.r iM*, . • , .14" VW . A* .' .""a' ibf® ' ' A V 1 m • ' i • « »•» « . I a "** v 'Av * • W * » . • *. « A' .1 BIRD'JOHNSON COMPANY 110 Norfolk Street, Walpole, MA 02081, (617)£68-9610 • x #
