Page 4: of Maritime Reporter Magazine (July 15, 1981)

Bay Building Barge With

First Conveyor To Handle

Wet Phosphate Rock

Construction is under way on a seagoing barge that includes in its equipment the first loop-belt type self-unloading conveyor sys- tem specifically designed to han- dle blended wet phosphate rock.

The 610- by 78-foot barge is be- ing built by the Bay Shipbuilding

Corporation, Sturgeon Bay, Wis., for the Beker Shipping Company of Greenwich, Conn. The loop-belt self-unloading equipment and re- lated machinery is being supplied by Stephens-Adamson, Inc., an

Allis-Chalmers Corporation sub- sidiary.

The barge is of tug notch de- sign, in which the stern is fitted with a deep notch to accommo- date a 7,200-bhp tug that propels the barge. The all-welded barge will be used to transport phos- phate rock between Tampa, Fla., and a Mississippi River port.

A loop-belt, self-unloading con- veyor system is a development of

Stephens-Adamson that is used extensively on Great Lakes bulk carrier freighters. The system involves a double set of conveyor belts that are sandwiched togeth-

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LOADMAX is as simple to use as a desk calculator— tonnage distribution and calculated results are read at a glance — no confusing knobs, thumbwheels or cluttered

CRT displays typical of other loading instruments.

Designed for the particular operating requirements of your ship, LOADMAX combines numeric tonnage displays with an easily understood mimic diagram of the vessel. A separate graphic display shows whether the ship is in hogging or sagging condition and if shear force or bending moment limits are being exceeded. Write for a FREE brochure with detailed information today. Raytheon Ocean Systems

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Summary displays

Shear force and bending moment graphic display

Ship mimic diagram and mimic tonnage displays

Shear force and bending moment point "fine" display select buttons

RAYTHEON

Optional tank capacity table

Carrying handle

Draft aft display

Power "on-off" key switch modeatmg Shear force and control bending moment switches nu™e™ "fr16" . lightship disPlays • self-test • port condition • run

Shear force and bending moment graphic display select switch

Draft forward display

Entry keyboard display

Simple 19-key-

Entry keyboard

Cover latch

Special function keys

Computer printout (optional) er by rollers in order to permit bulk material to be elevated from a lower level, as a ship's hold, to a higher level for discharge. The arrangement is very compact, freeing ship's space for payload.

Wet phosphate rock is a term used in the industry to describe phosphate ore that has been cleaned by washing and screen- ing, but has not yet been con- verted into usable fertilizer. Phys- ically, it resembles beach sand.

The system on the Beker Ship- ping barge is rated 4,500 short tons an hour and has a 68-foot lift.

The barge also will be outfitted with 35 units of recently devel- oped Stephens-Adamson bulk flow gate used in releasing bulk ma- terials from ship's hoppers. These are used with a conveyor that traverses the 495-foot-long cargo hold, bringing rock to the loop- belt unit. A boom with a conveyor will move the rock from the loop- belt discharge to hoppers ashore.

Armco's Southwestern

Steel Division Promotes

Leeper And Carter

Robert L. Leeper

Armco's Southwestern Steel

Division recently announced two promotions within the sales or- ganization of the Houston-based steelmaker. Robert L. Leeper has been appointed product manager- alloy bars and semi-finished products. Herbert E. Carter has been appointed product manager- plates.

Herbert E. Carter

These new responsibilities re- flect the growing demand for spe- cial alloy bar and plate steels de- veloped by the division — like

SSS-100 and NI-COP—from cus- tomers in marine, structural, con- struction, off-highway equipment, and general industrial markets.

Both Mr. Leeper and Mr. Carter will remain at the Houston head- quarters of the division. 6 Write 503 on Reader Service Card Maritime Reporter/Engineering News