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SELF-UNLOADER, Converted from | ypical Lake Freighter N THE April, 1932 issue of MARINE Review there appeared an article on the conversion of three lake freighters to modern self-unloading vessels. These conversions were quite revolutionary and so completely suc- cessful that, in spite of the depression, which had brought lake shipping al- most to a standstill, they were fol- lowed by a fourth conversion in 1933. (Marine Revirew—October, 1933). The constantly increasing demand for this type of self-unloader tonnage has necessitated a fifth conversion, the vessel entering service at the end of June. All of these conversions were carried out by the American Ship Building Co. at its Lorain, O., yard. Work Quickly Completed This vessel, the S. S. CONSUMERS Power, is a sister ship of the THUNDER Bay QUARRIES and the DIAMOND AL- KALI, which were reconstructed in 1932. Work in converting the CoNn- SUMERS POWER commenced on April 12, last and was completed June 29, on which date the vessel sailed from the American Ship Building Co.’s Lorain, O., plant to load coal at Toledo, O., for Toronto, Ont. Her cargo was unloaded without incident just as the other ves- sels started their careers as self-un- loaders and have continued ever since. This fact alone bears a high tribute to the builder as does also the remark- ably short time of about two and one half months, in which so exten- Sive a job was carried out. It is interesting to note how quick- ly the CoNSUMERS POWER became a factor in transportation. As_ stated above, she was completed by the ship- yard on June 29. The accompanying illustrations, showing this vessel in ac- tive operation, were taken at Fairport, 12 Principal Characteristics INVELYIRG) sia cee hath co dastasees veneuterevacrase+t CONSUMERS Power (Formerly Harry Yates) : f Converted by The American Ship Building Co. QO WIMeT aiiiccsusescesoseanvessenes American Steamship Co. (Boland & Cornelius, managers) Work begun..........cs00 April 12, 1934 COMpPleted occc.....cccecsssssccseseoeesesees ..June 20, 19384 Length overall, feet, inches........0..00.. 525 0 Length between p.p., feet, inches Se b04 0 Breadth molded, feet, inches.......... 56 0 Depth molded, feet, inches ... 30 0 GYOSS TONMALE «......cccsccssceeees 6391 INGE COMMAS) oie ieissesancsspaséeswavecsevcecstese 5082 Speed, in service, miles per hour ws 114% Single screw, I.LH.P @ 90 r.p.m........... 2200 Cargo capacity, short tons (2000 lbs.).. 8940 Propelling machinery, one, 3-cylinder, triple expansion steam reciprocating, engine. Cylinders, dia., inches..................00. 23 x 37 x 68 EPO KG INCHES ciassereisiisastezsneqsnooesscescadneceate 42 Boilers, two Scotch, size, feet.............. 15 x 12 Complement, officers and crew, total... 38 Classification........ American Bureau of Shipping O., on July 10 when she was delivering her third cargo. For such a brief pe- riod of operation this is rather an unusual record for a vessel that had gone through such a complete trans- formation from an ordinary bulk freighter, dependent on shore equip- ment for unloading, to a self contained unit able to discharge her cargo on any dock with sufficient depth of wa- ter to permit entry. After delivering her first cargo of coal at Toronto, Ont., she proceeded to Sandusky, O., where she took on a cargo of coal which was delivered to Menominee, Mich. She then proceed- ed to Alpena, Mich., where she took on a cargo of lime stone. This was her third cargo and was delivered at Fair- port, O., July 10, as shown in the ac- companying illustrations. Structurally, there is very little dif- ference in any of these ships. A few improvements were made when the J. F. SCHOELLKoprF, JR. was converted. Further minor improvements have been made on the CoNSuMERS POWER. The unloading boom is 185 feet in length; the longest ever to be fitted on a self-unloader. It also covers the Same wide range of swing as in the other vessels, so that cargo may be dis- MARINE REviEw—August, 1934 4 HE Con- summers Power, latest self - unloader, delivering car- go of limestone at dock of Dia- mond Alkali Co., Fairport, Op Faulty We Third cargo since her con- version, the other two being coal cargoes ®