Page 34: of Maritime Reporter Magazine (September 1981)

Cargo Handling

Equipment — Lidgerwood (continued from page 34) vessels and is currently providing this equipment for the mooring of the frigates in the current

FFG program. The design pro- vides for under-deck drive, quiet two-speed operation and antifric- tion bearing mounting for the capstan head above deck. A two- speed high-torque electric motor with a substantial electric brake supplies the motor power for the capstan.

For a complete catalog of ma- rine equipment manufactured by

Lidgerwood,

Write 38 on Reader Service Card

LINK-BELT

The New Haven (Conn.) Ter- minal (NHT) has installed a

Link-Belt® LS-718 mobile crawler crane that handles a minimum of 200 tons of scrap per hour when loading ships. Prior to pur- chase of the LS-718, NHT under- took a study to determine the possibility of reducing the time required to load a ship with scrap.

Two gantry-mounted and one crawler-mounted cranes fitted with lifting magnets are used.

After an extensive analysis,

NHT made the decision to pur- chase a Link-Belt crawler crane with a lift capacity of 50 tons at a 50-foot radius and with a 130- foot boom. The unit is equipped

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Write 165 on Reader Service Card with independent travel and ele- vated operator's cab. Also, the production requirement was es- tablished as 200 tons per hour to reduce ship loading time. NHT designed a special bucket to han- dle one truckload of scrap.

The LS-718 is said to be per- forming to the customer's satis- faction. It is handling the 29-ton load (9-ton bucket weight and 20 tons of scrap) easily, and obtain- ing the minimum of 200 tons per hour. The elevated cab does give a full view of the hatch opening, enabling the operator to spot the load even in the corners of the hold.

For additional information on

Link-Belt cranes,

Write 39 on Reader Service Card

MACGREGOR

MacGregor cargo transfer and access equipment is known world- wide for providing power to move cargo on and off ships faster, using every new technique to streamline loading methods and cut time in port. MacGregor car- go-handling expertise has been applied to every kind of dry cargo ship afloat, custom-built or con- verted. Its equipment is backed by a service network covering every major maritime nation.

On ships without the necessary cranes, MacGregor has a method for using the hatch cover as a crane to manipulate 'tween-deck pontoon hatch covers within ships having large, flat sided holds. It was devised by Deutsche Mac-

Gregor of Bremen. The "rolling crane hatch cover" fulfills a dual purpose. It acts as a hatch cover and, because it is equipped with a powered traction drive with built-in lifting winches, it can be rolled along the weather deck coaming like a gantry crane, us- ing the winch wire to lift, stack or otherwise move the pontoon panels situated directly below on the 'tween deck.

At the time of going to press, a total of four vessels had been equipped with a rolling crane hatch cover.

At the present stage of devel- opment, the vessel most able to benefit from the new device is the "paragraph" type coaster having one large hold. Many of these ships have been built in

West German yards in recent years. In these vessels, the 'tween- deck hold often does not permit the stowage of pontoon covers, and they are usually not equipped with their own cranes.

The rolling crane hatch cover — conceived in response to an owners particular need—can be incorporated in either the Single

Pull, Folding or Piggy-back hatch cover systems. With Single Pull it becomes the (detachable) lead panel in stowage; and with the folding system the crane cover is located between the folding pairs which stow fore and aft on the hatch.

Apart from its use as a straight pontoon hatch cover crane, the