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PACECO Introduces 'Buckets On Rope' For Bulk Unloading The Catenary Bulk Unloader can be di- rected into corners of the hold to perform the final cleanup without mechanical as- sistance. A giant step forward has been taken in the design of equipment for unloading bulk materials from the hold of a ship. The Catenary Bulk Unloader being introduced by PACECO, a division of Fruehauf Corporation, employs a continuous train of buckets which can unload dry bulk materials at a constant rate of production, regardless of the depth at which it works. The principle of this new design concept is a catenary loop of steel buckets, connected by wire rope that is driven at high speed over special sprockets. Each bucket in the moving train digs and fills com- pletely with material, then lifts and dumps the material onto a con- veyor in an endless cycle. Thus the rate of production never varies, no matter how deep in the hold the Catenary Bulk Unloader must op- erate. Unloading efficiency of this new equipment is further increased by a special hinged boom which guides the bucket train into wing areas of the ship inaccessible with conventional bucket unloaders. PACECO's Catenary Bulk Unload- er is able to perform the final clean- up job without other mechanical assistance, because the buckets can be directed into corners of the hold. "This is an entirely new concept in bulk unloading," said J.P. Tep- ley, general manager of PACECO's Bulk Systems Division. "Not only will the new Unloader provide faster, more efficient production, but it is completely portable. Be- cause of its design simplicity and lightweight construction," he ex- plained, "the Catenary Bulk Un- loader can be moved easily to any dock location where it is needed." It operates from a PACECO Por- tainer, or any mobile crane, Mr. Tepley explained. The new PACECO equipment is versatile too. A variety of dry, bulk materials can be unloaded with the Catenary Bulk Unloader, among them being grains, sand, ammoni- um sulphate, rock phosphate, and cement. The tons per hour which can be unloaded by the bucket train are determined by the bucket size which a customer orders. To meet the differing needs, PACECO is building six bucket sizes rang- ing from 10 inches in diameter, with a rated capacity of 171 tons per hour, up to 36-inch diameter buckets which give the Unloader a rated capacity of 1,500 tons per hour. The operating principle of the Catenary Bulk Unloader is unique. Special patented sprockets have been designed to provide smooth movement of the catenary loop of buckets, whether the buckets are full or empty. The drive sprocket, which is in the form of a large wheel, has alternate sets of drive- and-guide rollers and support roll- ers. Similar support rollers for the buckets are found on the Idler sprockets, and there are special four-roller guides between the buckets. The design simplicity of the bucket and rope sections is anoth- er feature of the Catenary Bulk Unloader. Each section is quick- coupled making the bucket train easy to lengthen or shorten. This quick-coupling feature also mini- mizes operating procedure and aids in maintenance of the equipment. PACECO will manufacture and sell the new equipment through its headquarters office in Alameda, Calif., as well as through PACECO licensees on five continents. WAUKESHA TILTING PAD IB! BEARINGS AMERICA'S LEADING MANUFACTURER OF BEARINGS AND SEALS FOR MARINE AND POWER INDUSTRIES take your top loads at high speeds • Complete line for vertical and horizontal applications for all sizes and speeds. Sizes 31/2" to 90" diameter. • Centrifugally cast tin base babbitt, metallurgically bonded to steel backing up to 25" diameter. • Larger sizes utilize static pouring for void-free sur- faces. • Available split or solid, in both self-leveling and adjust- able screw type. • Facilities for special de- signs and sizes where re- quired. WRITE FOR CATALOG W-3A P.O. Box 798 Waukesha, Wisconsin 53186 we. Since 1907 service-after-the-premium at Adams and Porter has become a byword. Today everybody talks about doing his own thing. At Adams and Porter our thing is to provide a competent insurance planning service at the lowest possible cost to those engaged in the marine and oil industries. Servicing what we sell is a must at Adams and Porter. If you're not receiving the attention you want, give an Adams and Porter account executive a call and let him take care of your business the way you think it ought to be. Adams & Porter Houston: Cotton Exchange Bldg. (713) 227-5181 New York: 30 Church St. (212) 349-5900 KELSO BUILDS BETTER BARGES Automation, innovation, and skilled labor delivers a better barge every time. Deck, crane, hopper and tank barges - single and double-skin oil barges - mammoth 430' super barges . . . Kelso has built them all, and more! No matter how complex the job, it is produced when promised and at a competitive price. Get a better barge. Get a Kelso bid. ,, 1 I 1, 1 A Subsidiary of C. Brewer & Co., Ltd. JIlOTipSnmssami CJT? '—Mr—1 II D I iMTRarntCTAi CANAL MILE 355 P.O. BOX 268 • GALVESTON, TEXAS 77550 H PH AC 713 744 ^341 August 15, 1971 19
