Page 13: of Maritime Reporter Magazine (February 15, 1981)

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Future

No for 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. / / l>j& fm

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BIRD-JOHNSON COMPANY *3aBS5' 110 Norfolk Street, Walpole, MA 02081, (617)£68-9610 •r 'iv/* - liar * * k * • • A * v/ •* * »*«« vx » ••*.»• y %