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"May, 1913 MY ORAL IE 2/7, IO OE SEO (¥ CASE 200 §NORE |. DOLS NOT FALL WHEN PROP IS ACAOVEO I at Pineal THE MARINE REVIEW av 1 eles) 1& ce dd nade = \ | "RAM BACKING. | S-/p sree. ryores Abi orera ties WN ie ara ae NI : SILL CHEERS Mes ~ oak wpoors ver Bal rear 7 J SE ; -- 5 IAG AND (0 WANE OF 266 SHOEE * y < maaan i WAKE OF 266 SWOSE RIEBANO. po as GROUND LEE, [yersxéo over S ceos cans. ELEvation: Lookine INBOARD. FIG. 4--ONE OF THE PRECAUTIONARY DOG SHORES part of the dredging equipment for use in emergency .work in the Culebra cut. The largest barges in the canal service at present are of 500 cubic yards ca- pacity. The new barges are to be of heavy construction, :suitable for rough service, and will be rectangular in de- sign with a rake, at "each. end: «Bach barge is to be 160 ft. long, with a molded depth of 13 ft. 6 m, aud. to have 30-in. freeboard when fully loaded. | The hoppers are to be four in number, with a minimum width of 12 ft.' at bottom; provided with doors opening to the full size, dropped by manual power and lifted by steam. The hop- pers are to be provided with watertight bulkheads extending between them to the deck. The bulkheads forming the ends of the hoppers are to extend en- 3 GQ B= tirely across the barge frames: to floor deck and made of plate weighing 12.7 Ibs. per square foot. side beams, There is also to be a watertight bulk- head at each end of each rake, and in the space forward and aft of the hop- pers, there is to be a central longitudinal bulkhead of steel plate, 10.2 lbs. to the square foot, which will extend ~from the hoppers to each end of the barge. In addition there are to be two long lat- tice trusses, one on each side, midway from the center bulkhead to the side of the hull. The deck beams of 5 by 3%-in. Z-bars, spaced one on each frame. The wéigh 22.95 lbs. per square foot. forward and two tanks for oil steel hull plating is to 15? Oil Tanker Richmond The Fore River Ship Building Co., Quincy, Mass., launched: on April 8 the oil tanker Richmond for the Stand- ard Oil Co. of California. The vessel is built on the Isherwood - longitudinal framing system to carry 2,250,000 gal- lons of oil in bulk, having straight stem, elliptical stern, poop, forecastle, bridge and bridge houses amidships, three steel masts with machinery located aft. The principal dimensions are as fol- lows: ; Length oven allt Ace an Beam osc eee 54 ft. Depth 3 31 ft. 6.in. The vessel is sub-divided into sixteen tanks for oil, with pump room located fuel, located aft, for the use of the main pro- pelling machinery; forward of the pump room is a large cargo hold; on the port and starboard sides of the expansion trunks are located eight summer tanks in the 'tween decks. Captain and deck officers are berthed in the bridge house amidship; engineers, stewards, crew and firemen are housed '*tween decks in the poop. Forward on the forecastle deck is fitted a Hyde No. 11 steam windlass aft under the poop deck is located a Hyde 10 in. and 10 in. steam steering engine with telemotor operated from the navigating bridge; there is also fitted three 9 by 12-in. horizontal single geared hoisters, to be used for cargo (i VA Qi TWELE FRIED TO BE KEPT FULL he x QZNO LINED VP WITH VERTICAL kf \ 4 STRUTS 111 FCOSITION - wes ' 4 8 oo 3 a: \ [2112099 FLITE WASHERS. +3 ye ' As BOLT UPSET AT ONE. FO THEEAG kasi oe 12*/4 OAK. ¥, GREASING SPACE TI BE EXACTLY HORIZON T Atk PLATES - SECURED _70 W000 BY 2 ROWS? m4 UA 0 ES Borron of Meee -- __¥-- ---- ieee ocak anaie ee e ae FA FILLED FLUSH WITH OAR ets Shams > mes ' pie eat en poe se SOL ee a ee apne P he y oe Te ae 10° jong sprenceR Y.P. A | THIS BOLT FITTED HORIZONTALLY AMO TO CLE2R BOTTOM PACKING WHEN SHIP PIVOTS. SECTION AT Frane_N2 i7. «. FIG, §--CROSS SECTI Suoine WAYS LUBRICANT | groune WAYS. ON OF FORE POPPET AND | } RIB GANO. CRADLE