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November, 1911 girder construction, her cargo hold being divided into three compart- ments. . Her hopper sides are carried in a pronounced slope from the tank top to the main deck, forming side tanks 12 ft. wide at the bottom and 5 ft. wide at the top. It will be seen that notwithstanding her added beam, her cargo is quite accessible to the unloading machines, owing to the manner in which her side tanks sex out from the skin, confining the cargo easily within the sphere of the self- filling bucket and eliminating hand shoveling. The record made in dis- charging her maiden cargo of ore and "TAE MARINE REVIEW bottom to lend added strength. All her deck beams run fore and aft and are 13 in. deep, 4% in. flange and % in. thick. All frames are joggled, eliminating liners back of shell plat- ing. Her screen bulkheads are built yn the box girder syste. The propelling. machinery consists of a quadruple-expansion engine, 25) 334%, 48 and 69 in. cylinder diameters by 42 in. stroke, the estimated horse- power being 2,600. The high pressure cylinder is placed forward and the first intermediate, aft; the low pres- sure cylinder adjoins the high pres- sure with the second intermediate in- 409 hauling. The piston rods are 5% in. diameter, fitted into annealed _ steel crossheads having brass shoes both for go ahead and backing. The con- necting rods are 9 ft. long between diameters with brass box on top and babbitted cast steel boxes. at the lower end. . The crank shaft is: of the built-up type with cast steel arms shrunk on. The crank shaft is 12 in. in diameter, supported in four babbitted journals, two 16% in.- and two 20 in. long. The 'crank pins are 1¢ mm. and 13. in. The thrust bearing is braced to the bed plate and has eight driving col- v ------ Tue Party THAT PARTICIPATED IN THE SCHOONMAKER'S MAIDEN TRIP Reading from left to right: Henry Irvin Jr., Je Be appended to this article proves that she is an easy ship to unload. Water -ballast is carried in, the side tanks as well as in the water bottom, which is 6 ft. deep, making a total water ballast capacity of 8,000 tons. Her hatches, 35 in number, are 54 ft. wide and 9 ft. fore and aft. The hatch covers, which are of the steel telescopic kind, fitted with Mulholland fasteners are operated by wire cables running through portable tripods on deck and fixed cleats in the butt strap, power being supplied by the deck engines. In. construction the Schoonmaker is unusually staunch. Two extra longitudinal girders have been fitted on the turn of the bilge in the water Mr. Morgan and Charles H. McKee stalled aft of the low pressure. The high and intermediate cylinders are fitted with piston valves and the low pressure cylinder with a triple-ported slide valve. first intermediate pressure pistons have deep removable followers and the second intermediate and low pres- "sure pistons have the Allen packing rings. All valves are operated with Stevenson link motion, the low pres- sure and second intermediate being operated by a single rocker arm. Metallic packing of the United States make is fitted on all valve stems and piston rods. The air pump is worked from the low pressure cylinder cross- head. All valves are of ample area and are accessible for quick over- The high pressure and. Yohe, C. D. Dyer, W. F. Riley, Capt. Thomas H. Saunders, Col. James M. Schoonmaker, lars giving a pressure per sq. in. of 40 -lbs. average working pressure. The outboard shaft is 12 in, in diam- eter, enlarged in the stern bearing to 13%4 in. The bearing is 5 ft. long, lined with lignum vitae. The propel- ler is of the sectional type, 15 ft. 9 in. diameter, with a circumferential pitch of 13 ft. 9 in., at the boss 13 ft. and a developed area of 92 sq. ft. To handle the enormous water ballast capacity of the ship two 18-in. centri- fugal pumps of the Kingsford type are provided, direct connected to two 12 x 10 Kingsford enclosed double engines, built by the Kingsford Foun- dry & Machine Co., Oswego, N. Y., and two Warren, 12 x 16 x 18, reci- procating pumps are located in the