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Orders Placed, Bids Asked By U. S. Engineers The United States engineers office, Memphis, Tenn., has issued the follow- ing information: A contract has been awarded the United Welding Co., Middletown, O., for 50 steel dredge pontons on its low bid of $16,750. The Chicago Bridge & Iron Co., Birmingham, Ala., has been awarded contract for 25 sections of steel ponton pipe, on its low bid of $19,900. The same office also accepted the low bid of the Midland Barge Co., Mid- land, Pa., for the construction of two 31-foot steel hull motorboats at a to- tal cost of $8620. Bids on this item were opened on April 17. At the same time, all bids received on April 17 for the construction of two 30-foot wooden work boats were rejected. Bids for this work were re-advertised under amended specifications issued May 3, for opening on May 17. No informa- tion is available at this time as to the final award of contract. The Memphis office, on May 15, is- sued invitations for bids for the con- struction of three 55-foot, steel hull, diesel work boats, the bids to be opened on June 5. These boats are to be of single screw, tunnel type, propelled by geared diesel engines de- veloping not less than 120 horsepower at 800 revolutions per minute. The gear reduction is to give a propeller speed of approximately 325 revolu- tions per minute. The United States engineer office, at Philadelphia, will receive bids on May 28 for the construction, and de- livery afloat ready for service, of two 36-foot cabin picket boats. These boats are to be of wooden con- struction and will have a length over- all of 36 feet; beam of hull molded, 9 feet, 13%, inches; and depth molded, 6 feet, 4% inches. The engine is to be either of the full diesel or oil burn- ing type of six cylinders developing 140 brake horsepower at a maximum speed of 1100 revolutions per minute. The United States engineer office, Louisville, Ky., opened bids on May 10 for constructing 50 steel pontons and 150 sections of electrically welded Pe — — ne | , steel pipe. No information as_ to award of contract to date. The United States engineer office at St. Louis will open bids on May 28 for one 45-horsepower, medium heavy duty, marine type gasoline engine, for installation in a 28-foot steel hull pushboat. This same office will open bids on the same day for three gaso- line engine driven, four-stage, centri- fugal grader pump units, delivering not less than 600 gallons per minute at a total dynamic head of 550 feet. To Build River Towboat The United States engineer office, Vicksburg, Miss., on April 24 issued specifications and invitation for bids, to be received until May 29, for the construction and delivery afloat of one steel hull, twin screw, diesel driven towboat. Dimensions of this vessel are to be; length molded, 176 feet; breadth of hull molded, 38 feet; depth molded, 8 feet, 6 inches. There are to be two propelling engines of full diesel type and direct reversible. The engines will be either four cycle or two cycle. Hach engine shall develop continuous- ly 650 brake horsepower at 250 revolu- tions per minute. In addition to the main propelling engines there are to be two 75-kilowatt, 125-volt, direct cur- rent, full diesel driven generating sets. Railroad Tug Improved It is reported that the Pennsylvania railroad’s diesel electric tug ELMIRA was returned to service in New York harbor on May 14, after extensive changes in power plant and cooling system which make her one of the most modern vessels in the port. With the expectation of still further efficiency, the two Winton air injec- tion engines with which she was for- merly equipped have been replaced with two of the latest Winton engines of the mechanical injection type. Her cooling system has also been changed over to use fresh water instead of sea water, to eliminate excessive en- gine corrosion and to permit more accurate temperature control of the engines. Bunker Prices Test Steel by New Method for Navy Requirements For the first time, the bureau of engineering, navy department has specified that the yield point of steel, other than stainless, shall be deter- mined by the proof-stress method. The forged, nickel-steel, main pro- pulsion shafts for the new 1500-ton destroyers are to be tested in this way. It is believed that this method of testing will provide a more positive basis for establishing the factor of safety of these propulsion shafts. The proof-stress method has for its basis a limited, permanent de- formation of the test sample after re- moval of the tensile loading. The method first was applied by the bu- reau, last fall, to corrosion-resistant steel bars, rods and forgings. Following is the bureau’s specifi- cation covering the proof-stress test: “The proof-stress shall be deter- mined by means of an extensometer, and shall be that stress which pro- duces a permanent elongation of 0.0002-inch in 2 inehes after re- lease of the load. The proof stress shall be determined by applying a load of at least 5000 pounds per square inch less than the required minimum proof stress and noting the permanent elongation, if any, after release of the load. Additional loads shall be applied in increments of 2500 pounds per square inch until the permanent elongation of 0.0002-inch in 2 inches has been exceeded. The last beam reading taken prior to the point where the permanent elonga- tion of 0.0002-inch in 2 inches is exceeded shall be recorded as the proof load from which the _ proof stress shall be calculated.”’ Moore Steam Turbine Corp., Wells- ville, N. Y., on April 20 made the low bid to the navy department, bureau of supplies and accounts, for 16 tur- bine-driven generators, 16 regulators and spares, for use on naval vessels now under construction on Puget sound, The price named was $505,- 830, delivered at Puget sound, or $497,549, f.o.b. Wellsville, N. Y. hiladelphia At New York a ee ae Gris Paces Coal Fuel oil Diesel engine oa uel oi iese engine Bi: 0:, bs alongside oil Dossct: trimin bunk alongside oil alongside May 18,1934 per ton. per barrel per gallon per ton _ per barrel as ie Boston, coal, per ton.$ 7.86 May, 18, 1934...5.63@5.48 1.35 4.79 May 18, 1934...4.93@4.78 1.35 ; oston, oil, f. a. s. pet Apri Woe es 8 C3@ 48 17:35 4.79 April dos ae 4.93@4.78 1.35 4.76 barrelc sta eoccaime une $1.23 Mare 19S 5.35@5.20 1.25 4.79 FY ea Set pe nee 4.65@4.50 1.25 4.76 Hampton Roads, coal, per jy epee Be eal ass 5.35520 1.25 4.79 Rebel oe ees aan 4.65@4.50 1.25 4.76 ton, f.o.b. piers........ $5.00 GA GLB eo is §35@5:20° 2.1525 4.79 Jan Tene. 4.65@4.50 1.25 4.76 Cardiff, coal, per ton....138 6d Dee Be es 5.35@5.20 1.25 4.79 Dee oleic sarc. 4.65@4.50 1.15 4.76 London, coal, per ton...—s —d Nov. 18 poo 355220 4b 15 4.70% Novi2l8 exc ees 4.65@4.50 1.15 4.76 Antwerp, coal, per ton. .15s Od Ocr18 5.00@5.75 1.15 4.70% Oct. 18 es 5.00@5.75 1.15 4.76 Antwerp, Fuel oil, per ton—s -d Sept. 18250 4.45@4.75 i te) 4.70 Sept. 18 cece 4.45@4.75 1S 4.88 Antwerp, Diesel oil, per Auge le. cs. 4.45@4.75 .90 4.32 Auge cloaca eve 4.45@4.75 .90 4.28 TON. ee ece ger ees eters od Julysl8a ee eos 4.30@4.60 .90 4.32 July 18 ........4.30@4.60 .90 4.28% British ports, Fuel oil. ..—s -d June 18,1933...4.30@4.60 80 4.08 June 18, 1933...4.30@4.60 . 80 4.04 British ports, Diesel oil. —s -d Note: Figures giver for coal at New York and Philadelphia are for Classes A and B according to the Code; Class C is slightly less. MARINE REVIEw—June, 1934 25