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= bar H ' Practical Ways to Cut | FEE =e in’ Carqo Handling J Vessels at facilities pier No. 7 at Manila, P. I., is one of the finest in the world. It was built by the insular government at a cost of $4,500,000 and is of concrete’ construction throughout. Some of the longest concrete piles ever used—110 feet long—were driven in its substruc- ture. The entire pier is 1400 feet long and 234 feet wide, with a transit shed 1253 feet by 160 feet. It has a wide apron which carries marginal railroad tracks, gantry cranes, and gantry passenger gang- ways. The pier apron is 28 feet wide, and an additional 4 feet 6 inches to outer side of pier, along the cap log, clear of the gantry is used for dock bollards, ship’s crew gang- ways, cargo safety nets and other obstructions that extend a few feet from the inshore side of a _ vessel when cargo is being worked. This is a very definite advantage when shifting the pier cranes and landing bridges from one hatch to another along the apron which can be done without interference to the working of the ship. F:.: general utility and variety of Ship Side Gantry Cranes There are several of these ship side gantry cranes with capacities up to 15 tons. They reach from the holds of the largest ships to a dis- tance of 50 feet inshore to hatches in the top of the transit shed for landing cargo where it may be picked up by cranes (sometimes termed 30 Plac pial Conducted by H.E.STOCKER By Emmett J. Johnson “bridge cranes’’) which are _ in- stalled inside of the transit shed. These shipside cranes are also used for loading barges and inter-island steamers with freight in transit. The cranes are half gantry with inner end resting on a rail placed in the wall of the transit’ shed. This leaves the entire pier apron free of obstructions except for one gantry leg near the string piece. These apron gantry cranes were constructed by Wellman, Seaver, Mor- gan, and are electrically operated. The cranes are of the ‘‘whirler’”’ type, set on large circular tracks with heavy king pins for protection from overloads. As the booms are raised and lowered as easily as the load is lifted, the utmost freedom of movement is obtained. The transit shed has three open bays with two rows of posts, one on each side of the center bay. Over these three bays there is a system of four rows of: 2-ton and 3-ton cranes, a total of 48 cranes, The center trusses for: the crane tracks, down the center bay, are hung from the roof leaving all bays entirely free from obstructions. There have been several different types of telpher and other overhead systems tried out at various ports, but this is believed to be the only one of this type for handling general cargo and which also gives a cov- erage of the entire floor of the shed. The question of being able to pile general cargo by mechanical means MARINE REVIEw—June, 1934 eceive Efficient Service anilas Modern Pier entirely, has been worked on for some time at various ocean _ ter- minals. The single monorail sys- tem, with traveling crane machine and operator, has been installed at various ports where a long haul is encountered and where’ uniform packages are handled. Several such installations at the port of London are used for handling frozen meats from Argentine. These installations are not for stacking, but more for direct movement from ship to land carrier. In one plan for a pier, which was never carried out, each side of the pier was to have five longitudinal tracks and five pairs of crossovers and 50 switches. The cost of the installation would have been more than $100,000. All of these tracks were proposed in order to have the overhead carrier reach every part of the pier deck and eliminate the hand truck. Use of Overhead Cranes There are other monorail telpher systems for handling cargo. How- ever, it seems to be the consensus of opinion that the system has not fulfilled expectations because of its lack of flexibility and its cost of installation. There is another such installation of overhead cranes, as that in ‘Manila, in the cotton safes at the port of Manchester. Though these are comparatively small compart- ments, absolutely fire-proof, the cot- ton is stacked for storage as high as