Page 36: of Maritime Reporter Magazine (April 1993)

TRACOR MARCON

Monitor Control Alarm was acquired by Electronic Marine System, Inc. • Mobile • Texaco • NOAA Sun Transport • USCG • Canadian Coast Guard • Tidewater • MSC • U.S. Army Honeywell, Australia • Army Corp of Engineers • Scripps Institute • American Commercial • Woods Hole

Barge Lines Oceanographic • Matson Navigation • Canoie Transportation are a few users of this technology which is continuing to be supported, manufactured and enhanced by

EMS/MARCON

PMS6000/PMS II MONITOR AND ALARM/

CS5000 Control System

ELECTRONIC MARINE SYSTEMS, INC.

Bellevue, WA/ Marrerro, LA / Rahway, NJ

Phone: 908-382-4344/ Fax: 908-388-5111 / Telex: 844 747 800 Ferndale Place, Rahway, NJ

Circle 284 on Reader Service Card

Largest Sea-Going Conveyor System

Survives Rigors Of North Sea

Mining sand and gravel from the ocean floor presents a survival of the fittest challenge for man and machine, particularly in the North Sea where "hostile environment" takes on added meaning. The arduous weather conditions demand that on-board material handling equip- ment be designed for survival, as well as produc- tivity. Strachan and Henshaw (S & H) of Bristol,

England, designs and installs some of the world's largest, highest-volume sand and gravel un- loading conveyor systems. Productivity demands often dictate that belt conveyors must be ca- pable of handling up to 2,700 tons per hour, with belt speeds up to 10 feet per second. On its largest unloader conveyor, S & H incorporates high capacity idler sets and returns made with

Series 1.940 rollers, supplied by Interroll Hold- ing AG, Antonino, Switzerland. Interroll

Holding's U.S. entity is Interroll Corp.,

Wilmington, N.C. The S & H boom conveyor installed on the Camdijk has a shallow frame design which provides weight savings. Interroll designed special suspended roller sets that eas- ily integrate into the frame design and help contribute to the overall weight savings ben- efits. Large suction pumps deliver sand and gravel from the ocean floor into the ship's hold.

Excess water is siphoned off and deposited over- board. The ship unloading process begins with a massive rotary bucket wheel that scoops sand and gravel and loads it onto a steep elevator conveyor. The material is deposited onto a cross-deck belt conveyor, then onto the main belt conveyor that runs the length of the ship.

MCR Engineering Unveils New

Product, Service Office

MCR Engineering has completed the instal- lation of a twin propeller control system for the

F/V Alaska Ranger owned by the Fishing Com- pany of Alaska. The system is the result of a four-year design effort which simplified the op- eration and maintenance of the entire propul- sion system.

Currently, MCR is retrofitting the M/V Cape

Edmont (MarAd operated) with a new three by 9,000-hp engine and propeller pitch control sys- tem. This is the fifth RoRo vessel of its class that has been upgraded with this propulsion system.

MCR also announced a new product based on its "IRIS" line of marine controllers: a small engine monitoring and shutdown system com- bining analog and digital inputs and outputs.

The first 12 of these systems will be delivered for generator engine protection in April '93. In order to provide customers with more prompt and professional service, MCR Engineering has formed the MCR Services, Inc., headed by Tom

Mack, which will offer local field service in

Seattle, Houston, Cleveland and Boston.

For additional information on MCR Engi- neering,

Circle 334 on Reader Service Card

Maritime Reporter/Engineering News

Circle 258 on Reader Service Card

Technological advances. Flawless design. Exceptional quality. Over 35 years of experience. Built in the U.S.A. tor the Police, Navy, Coast Guard, Rescue Missions,

Safety Organizations and Off-shore Oil companies. All combined make Willard Marine the country's largest

Established 1956 manufacturer of Rigid Inflatable Boats.

WILLARD MARINE, INC., 1250 N. Grove Street, Anaheim, CA 92806-2114, USA.

Phone 714/ 666-2150. Fax 714/ 632-8136.