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American Piping Offers Steel Spectacle Blinds —Free Brochure Available tener projects voices over long dis- tances, and amplifies sounds of far- off buoys, surf, etc. Its automatic foghorn is programmed to sound six standard international/inland sig- nals for powerboats, or other vessels underway, vessels stopped, aground, at anchor, or in tow. Emergency "yelp" and other signals can be acti- vated manually by the push-to-talk button on the microphone. All con- trols on the main console are by touch-keyboard. For intercom communications, up to four remote stations can be con- nected to receive or initiate a call to the master station. An auxiliary in- put allows audio from an external source, such as radio or cassette, to be piped and amplified to all or selected stations throughout the vessel. The RAY-410 may also be used for burglar alarm functions. Supplied with universal mounting yoke, the RAY-410 measures 6.5 inches high by 9.5 inches wide by 4.8 inches deep (165 X 240 X 120 mm), and can be mounted on a tabletop, bulkhead, or overhead. The RAY-410 has passed Ray- theon's tough environmental tests for shock, vibration, temperature extremes, and resistance to corro- sion, fungus, and water penetra- tion. For further literature containing full information, Circle 9 on Reader Service Card American Piping Products, Inc., manufactures a complete line of quick-acting spectacle blinds, fea- turing forged-steel bodies. They are designed for marine piping systems which cannot tolerate leakage and are commonly used for cargo segre- gation, inert gas and ballast piping. The company has made available sizes 1- through 24-inches, with either butt weld or flanged ends and a wide choice of body materials and "0" rings to suit the application. "O" ring seals located in the faces of the spectacle plate can be quickly replaced and eliminate the need for down-time servicing. A safety fea- ture of the American line blind is the position of the spectacle plate, which indicates the line to be open or closed. American Piping Products is of- fering a free brochure detailing the applications, features and construc- tion of their spectacle blinds. The publication contains several cross- section diagrams of the units, along with weight and dimension charts. For a copy of the brochure, Circle 18 on Reader Service Card Draper Lab Receives $121.8-Million Contract For Guidance System Charles Stark Draper Laboratory, Cambridge, Mass., is being awarded a $121,790,790 cost-plus-fixed-fee contract modification for design and development of an MK-6 guidance system for the Trident missile pro- gram. Work will be performed in Cambridge, and is expected to be completed September 30, 1989. The Strategic Systems Program Office, Washington, D.C., is the contracting activity (N00030-84-C-0036). New Loudhailer Has Foghorn, 4-Station Intercom —Literature Available Raytheon Marine Company has introduced the new, multi-function RAY-410 Loudhailer, featuring two- way intercom with inputs for up to four remote stations, plus automatic foghorn with six signals, anchor bell, and more. This powerful, 25-watt hailer/lis- We make boat shafting to fit your needs Armco AQUAMET Superior toughness-high strength-out- standing corrosion resistance. Choose the combination of properties that best suits your needs from Armco's remarkable fam- ily of AQUAMET® Boat Shafting. AQUAMET 17-Delivers high strength, outstanding toughness, and excellent corrosion resistance for the really rugged service requirements. AQUAMET 18 —Provides the economical way to get strength, corrosion resistance, and superior toughness. AQUAMET 19 —Combines corrosion resist- ance better than AQUAMET 17 and 18 with strength better than Type 304 stainless steel. AQUAMET 22-Gives the best seawater corrosion resistance available in a boat shaft plus excellent strength and toughness. There's an added bonus in the bigger shafting. Armco's new Precision Rotary Forge produces shafting in the larger diameters and longer lengths with improved as-forged straightness and surface finish. This means optimum properties and faster delivery on the shafting you need. Complete information-Free Don't make a boat shafting decision with- out looking at all the advantages of Armco® AQUAMET Boat Shafting. Write us today for your free copy of the 44-page Armco AQUAMET Boat Shafting Product Data Bulletin. It contains complete mechanical and physical properties, corro- sion resistance comparisons, machining guidelines and design curves. Armco, Stainless Steel Products, Dept. 25-106, Triangle Inquiry Center, 8401 Claude Thomas Road, Franklin, OH 45005. Co SPECIALTY ARMCO STEE|_S v DIVISION Circle 201 on Reader Service Card April, 1986 81
