Page 101: of Maritime Reporter Magazine (June 1985)

with %-inch sides, deck and bottom.

A 3-foot high deck coaming was also installed on each barge.

Jeffboat's construction consists of a 270-foot sternwheeler, 280-foot coastal tanker, a 2,800-hp retract- able pilothouse towboat and a 6,000- hp towboat dock and hopper barge.

For additional information on

Jeffboat and the services they of- fer,

Circle 324 on Reader Service Card

Jeffboat Delivers Deck Barge

For Nugent Sand Company

Jeffboat, Inc. of Jeffersonville, In- diana recently delivered the NSCO 63 deck barge (shown above) for

Nugent Sand Company, Inc. of

Louisville, Kentucky. This barge was one of a four-barge order placed by Nugent Sand Company.

General dimensions of the barges were 195-feet by 35-feet by 9-feet 6 inches. Each barge was constructed

Unique Actuator Selection

Slide Chart Available

From Jamesbury Corp.

Information normally requiring references to 20 or more catalog pages is contained in a new only- of-its-kind Actuator Selection Slide

Chart available from Jamesbury

Corp., Worcester, Mass., a Combus- tion Engineering company.

With the Actuator Slide Chart, the user selects the type of James- bury valve (screwed end ball, flaged ball or high performance butterfly) and sets the slide of the Valve

Torque Guide to the maximum dif- ferential pressure of the planned ap- plication. Torque requirements for available types and sizes are read from the moving scales of the tables, which also reflect variations, such as seat material, trunnion or non-trun- nion design in ball valves, and shaft upstream or downstream in butter- fly valves. Valve sizes covered range from ^-inch to 60-inch.

The user, having determined the torque requirement of the applica- tion, turns the Slide Chart to the

Actuator Selector side and selects from Jamesbury's seven general types an actuator best suited to the application.

For pneumatic and hydraulic op- eration, there are double-acting pis- ton, spring-piston and spring dia- phragm actuators.

Available air pressure is selected from the tabulations; torque re- quirements are set on the movable slide; and the user is rewarded with the designation of the actuator or actuators that will do the job.

For Jamesbury electric and man- ual gear actuators, non-movable ta- bles give designations to meet the required operating torque.

Actuator torque outputs range from 4 to 6,250 ft. lbs.

For more information and copies of the Actuator Selection Slide

Chart from Jamesbury Corp.,

Circle 44 on Reader Service Card

A 100 tonne Vickdock operating in Brunei, South-East Asia.

A floating dock for any vessel up to 300 tonnes.

This new floating, submersible dock (shown above) works quickly, safely whether the tide is in or out. The

VICKDOCK® provides a generous working area well out of the water to allow a safe, level and dry surface.

The tanks are flooded to allow the vessel to float over the dock. The tanks are then blown clear, submarine fashion, by compressed air, allowing much faster operation than conventional pumps. Tools and repair equipment can also be operated from the main air compressor.

Cockatoo Dockyard will arrange for the construction of your VICKDOCK® as close as possible to its final work site.

Austra Lift San Pedro is licenced to have the docks constructed within the USA.

Cockatoo Dockyard Pty. Ltd. (Incorporated in NSW)

PO Box 1139, North Sydney, NSW 2060, Australia.

Telephone (02) 920 1333. Telex AA72086.

All US inquiries should be directed to

Austra Lift Inc.

Suite 219, 1300 S. Beacon Street, San Pedro CA 90731.

Telephone: (213) 831 3200. Telex: 69 1600. ®Registered trademark VIC 0044

Circle 268 on Reader Service Card

June, 1985 99