Page 16: of Maritime Reporter Magazine (May 1981)

Shown at recent SNAME Los Angeles Metropolitan Section meeting are (L to R):

Ned Stewart, chairman of the Section; Vince DeGeorge, author; George Stiehl, vice chairman; and George Henning, secretary-treasurer.

SNAME Los Angeles Section

Discusses Lineshaft Alignment nostications. The effect of addi- tional horizontal and vertical loads imposed by external line- shaft misalignment was postu- lated, in terms of gear-to-pinion tooth load maximums, using force vector analysis. To validate the prediction programs, strain gauges were placed in the roots of test gear-set teeth and mis- alignment was induced. Further validation was accomplished by cold check measurement of ex- isting shipboard applications.

Mr. DeGeorge concluded the paper by asking the audience to put the relationship between line- shaft alignment and the main re- duction gear in a new perspec- tive and evaluate that relation- ship for each specific reduction gear and lineshaft design. The pre- diction program, however, does not consider transient changes in lineshaft alignment due to sea or ship operating conditions. The author and audience participated in a lively and expansive ques- tion and answer session following the presentation.

At a recent meeting of the Los

Angeles Metropolitan Section of

The Society of Naval Architects and Marine Engineers aboard the

Princess Louise, the evening's paper titled "The Combined Ef- fect of Vertical and Horizontal

Lineshaft Alignment on Main Re- duction Gear" was authored and presented by Vince DeGeorge of

General Electric Company. It challenged the attentive audience to think beyond customary line- shaft-to-reduction gear relation- ships.

Mr. DeGeorge used vu-graphs to illustrate the importance of predicting forces acting on the gear tooth interfaces during full torque hot operation, and to de- scribe the computer program de- veloped to accomplish the prog-

Moore McCormack To

Modify Six Existing Vessels

In $42-Million Project

Moore McCormack Lines, Inc., a subsidiary of Moore McCormack

Resources, Inc., One Landmark

Square, Stamford, Conn. 06901, has applied for a Title XI guar- antee to aid in financing the re- conditioning and reconstruction of six existing vessels.

Moore McCormack intends to modify the Mormacvega, Mor- maclynx, Mormacargo and Mor- macrigel, all 7,247-deadweight- tons Constellation-class vessels

INTRODUCES

PORTABLE POWER

BLAST

EQUIPMENT

At Goff we discovered if our airless shot blast equipment were portable it would save time, money, require less man- power and provide easier access to surfaces that require blast cleaning. So, Goff is proud to introduce Portable

Power Blast Equipment. / Goff's Port- able Power Blast Equipment is de- signed to clean horizontal, or slightly inclined steel or concrete surfaces such as ships' decks, storage tanks, offshore platforms, warehouse floors, roads or airport runways. Our Portable Power Blast Equipment offers the most modern and efficient method of blast cleaning sur- face preparation ever introduced to the industrial market. /

For a free brochure and complete information on Goff's Portable Power

Blast Equipment write or call today, (405) 382-6900

Telex 747-127

ONE PLEASANT GROVE RD. • P.O. BOX 1607 • SEMINOLE, OK 74868 20 Write 398 on Reader Service Card built by Ingalls Shipbuilding

Corp., Pascagoula, Miss., and de- livered in 1964 and 1965. A 115- foot cellular midbody section and three 40-ton cranes will be added and the No. 3 hatch converted and dedicated to cellularized contain- ers, making each of the vessels self-sustaining cargo/container ships.

The company also intends to perform the cellular conversion of

No. 3 hatch on the Mormacaltair and Mormacdraco, which had mid- bodies added in 1975.

All of the vessels are expected to be delivered in 1982, but no builder has been selected. Con- struction subsidy for the project has also been requested.

If approved, the Title XI guar- antee would cover $31,875,000 or 75 percent of the estimated ac- tual cost of $42,500,000.

New On-Site Generator

Produces On-Demand

Oxygen From Ambient Air

MARINOX 1, an on-site, on- demand oxygen generator that eliminates the need for pressur- ized oxygen cylinders, is now available from' XORBOX, Divi- sion of Greene & Kellogg, Inc.,

Tonawanda, N.Y. Contained in a sturdy, salt corrosion-resistant and watertight unit, MARINOX 1 is said to be ideal for cutting, welding, and brazing operations at offshore rig sites, shipbuilding yards, aboard ships at sea, and similar environments requiring ample quantities of oxygen-rich air. The Coast Guard-approved unit meets the ASME Code, and the 400-pound apparatus is a com- pact 40 by 20 by 56-inches.

The principle of operation of the MARINOX 1 involves air from the atmosphere being sup- plied to the unit's generator by a standard compressor, at a reg- ular pressure of 60 psig. Nitro- gen is then removed by a regen- erative, inert ceramic material.

The resulting 95 percent pure oxygen is stored in a surge tank to be drawn off at a regulated pressure of 30 psig. Continuous function is achieved through the use of two absorbents, which al- ternate drawing in air and ex- pelling nitrogen from the ma- chine. MARINOX 1 completes its cycle in two minutes.

The new MARINOX 1 is eco- nomical not only because it elim- inates the need for oxygen cyl- inders, but also because it gives customers a fixed cost for all the oxygen they produce and use, the manufacturer states. Additional- ly, once the MARINOX 1 pays for itself, the only cost is the min- imal electric expense to run it.

With the power of a 110-volt, 60- cycle outlet, the unit produces oxygen at 75 schf and 0-50 psig.

Oxygen can be produced con- tinually, ready for on-site, on- demand use.

For further information,

Write 90 on Reader Service Card

Maritime Reporter/Engineering News