The following text may have been generated by Optical Character Recognition, with varying degrees of accuracy. Reader beware!

184 of the doors are fitted with large size rollers to prevent chafing the hose during removal or stowing. The storeroom and lavatory are located in the after end of the deck house. The boat is equipped with a 16-ft. life THe Marine REVIEW posed by winter work in heavy ice. The shaft is 8%4 in. diameter and cranks are counter-balanced. The en- gine exhausts through a large feed heater and by means of 'switching valves the exhaust steam may be di- rected into either or both stacks or boat, handled by a wrought iron L-i'w.t.Pipe Rail ° . 27"High fae Roof 10:2 opts 244" 4, eo ays 2y"s 7.2 Fro'oue. a ea an i & Dimensions ne p20} 8 Length over a! 120-0 "aux 1i{"HalfRound =, | fo. Length B't'n Perp's 110-0" | Brass Grab Rail A 3m Breadth Moulded 280" ie x.15 Chanl = he h lded 15! ra te ; dx 4"x 9, tt x <eas " 7'3" hae a . s ioe Bulwark Braces 6-0 Apart VEG epe Ne M H if FR ax akcae x Dk.Plating 10.24 Blind. Punched at Coe oxf Lap . = NSW -------- : 19%6'* 17.75 Fender J 'amber 6 in 28-0 gts o.8 -- 2d"Ctrs. . 6"x 3°x 8,21 Scam Straps ple 3'x 8x 7.2. C | Frame & Face Angles Dole 3°x 3° 7.2" Cut & Brkt.to W.T.Bhds Web Clips 12"Long 8x 3°x 7,2 , 15-0 Depth Mouldea------____ <7" ] 1, Dble.'8° 37,21" Brkt,to W.T.Bhds Dble.4"x 3" 8.51 | Floors Conti uous 15tf Under Engine & in Fore Peak 12,577 in After Peak R Moaue He Hee NY 49"s.17.5 1 for 34 L'gth Peles 17.5" Forw'd End to 154 fy' 12 3% x 17.751 Fender 25"amidships 20 # Forw'd End to 154+ Aft End Plates at Water Line Forw'd to be 20# for 20/0 "Aft of Stem 1 11.5 for 4% Length 17,6 Forw'd End fi, toisiiaft Ena 316 Lap 17.5ét for % Length | 17.6 tt Forw'd End 18"x 18,5i'Under Boilers : .K,12.5 # Int a CaS: i 1" to16 Aft End ooo 246 x 216 x 5.9 Rev.Bars_ 1 --y9-75-Buly_amel Z ae ae pea 8 8p _ | ceed i Heel Piece 3'9"Long ~ 49"x 20" 4% Lap | MARINE REVIEW | 8" 6"x 7,2 Throughout , te 28-0'Breadth Moulded TONE t Mipsuip Section, W. A. McGOoNAGLE. SCANTLINGS. Frames; 6" x 3" x 13.75 lb. Bulb angles. Spaced 24" centers throughout. Ice frames forward between regular Frames, from center keeison to stringer. Bhd. frame angles double 3" x bulb angle. x 7.2 Ib. -Web Frame Piate 12" x 15 Ib. Cant frames 4" x 3" x 8.5 lb. Floors; continuous plate from bilge to bilge. engine space. 15 lb. in fore peak. Bulkhead; W. T. Bhds., 12:5 lb... plate, Horizontal stiffeners, 4" x ae : continuous ang'es. Side Stringers; double 3" x 3" x iecis 60 x 1A". "Stems /4. «2147 ptern post, 7" x3": Rudder stock; 6" dia., pintle, 314" dia. Rudder plates, 10.2 lb. 7.2 angles, Made: of 64003. 323 x 13275 Ih. 3" x 7.2 lb. Web frame angles double 3" x 3" Web frame face angles, double 3" x 3" x 7.2 lb. 18" x 18.5 lb. in boiler space. 27" x 15 Ib. Cant beams 4" x 3" x 8.5 Ib. in 12.5 lb. in after peak. Beams; 5" x 3" x 9.8 lb. angles on every frame. Vertical stiffeners, 3% ox 3.x 7.2 lb., spaced 24". x: .6:5 2 lb: plate, with 4" x 3" x 8.5 lb. angle stiffeners. Center keelson; 12.5 lb. plate intcl. between floors. spaced 48". Bunker Bhds. portable, 10.2 Ib. Riveted between double 4" x 3" x 8.5 Ib. cut at water tight bhds. and bracketed. : RIVETING. Rivets through kee], stem and stern post, 7%" dia. Shell rivets, 34" dia. Rivets through 12.5-lb. plate, 54" dia. Rivets through 10.2-Ib. plate, 14" dia. Shell landings. Landing of "A" strake on "B" to be 4%" wide and double riveted. strake, and '"'G" strake on "E" and "H"' strakes, All other shell landings 214" wide and single riveted. Butts of shell plating to be double riveted and they connect. Deck plating to be flush. Stringer butts to be double riveted heavier than the plates they connect, ae Seam straps 5" x 3" x 8.2 lb. angle. © singly strapped; straps: 7s" heavier than the plates es single strapped with straps 8" wide, and y" Deck surfaces which are to be walked upon are to be blind punched. crane; also a life raft capable of sustaining the weight of 15 men. Naturally in a vessel of this type the greatest interest centers in the machinery. The propelling engine is of the vertical, inverted, double-cylin- der non-condensing type with cranks set at 90 degrees and with cylinders 20 in. diameter x 24 in. stroke, of especially heavy design for working under the full boiler pressure of 180 Ih. and to meet the conditions im. freely into the atmosphere through a separate escape pipe. The engine is fitted. with steam and hand reverse . ear and drives a cast steel, solid, four-bladed, propeller, 8 ft. 6 in, di- ameter and 10 ft. pitch with an ex- panded area of 34 sq. ft. The fire pumps consist of two hori- zontal Curtis steam turbines, supplied by the General Electric Co. and di- rectly connected to two-stage centri- fugal pumps. Each pump has a care July, 1909 pacity of 6,000 gallons of water per minute, or a total capacity of 12,000 gallons per minute against a pressure of 150 lb. per sq. in. when operating at a speed of 1,800 revolutions per minute. To put it in other words, the pumps are capable of throwing 50 tons of water per minute against a head of 350 ft... The* turbines work under the full boiler pressure of 180 lb., and. each exhausts into an inde- pendent Blake jet condenser of the vertical type, guaranteed to maintain a vacuum of 27 in. under full load. An automatic free atmospheric ex- haust is also provided in event of the vacuum failing from. any cause. The pumps are so arranged that they may be worked in series, under which arrangement their capacity is 6,000 gallons per minute against a pressure of 300 lb. per sq. in. When so connected the starboard pump takes suction direct from the sea, dis- charging at 150 1b. pressure into the suction of the port pump, which, in turn, delivers into the fire mains at 300 lb. pressure. It is stated that the stream thus thrown is strong enough to cut out a section of the dock, if it should be necessary to destroy it to prevent the spread of fire. There are three monitors, one on the deck for- ward of the pilot house, one on top of the pilot house and one on top of the deck house aft. Each of these are fitted with nozzles ranging from 3 in. diameter to 5 in. diameter. In addition to this there are six 3¥4-in. hose connections, placed forward of the pilot house and three similar con- nections on each side of the deck house amidship. The fire mains run from 14-in. to 8-in. diameter and are all extra heavy with maled and fe- maled joints and tested for the maxi- mum working pressure of 300 Ib. Steam is supplied by two Scotch boilers 13 ft, 9 in. diameter by 11 ft. 6 in. long, allowed 180 Ibs. pressure. Each boiler contains two Morrison furnaces 50 in. mean diameter, fitted with separate combustion chambers and 348 3-in. tubes 8 ft. 2 in. long. The boilers are fitted with forced draft on the closed stokehold system, the air being supplied by an American Blower Co. fan with direct-connected engine placed on deck in the engine room. Feed water is supplied to the boilers by two vertical duplex pumps, either of which has ample capacity to feed the boilers when steaming at full power. Two ash ejectors are fitted in the stokehold for discharging the ashes overboard. Smoke-box doors are fitted with the Silley patent fasteners, as is now the standard prac- tice of the American Ship Building Co,