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

September, 1909 "TAE. Marine REvIEw as ee s ¢ , f { a te oe \ Sao Pee ud | comeng.t | conte a2 fl ho U i ! / i L eels i Kee face! \ / / ik I : / : ' i Ley 1 i U i a ee, } | t le ee (aieeetty Pied ae ret 1 ecu ! 1 | pe ie) | Vite. whe, 4 dd bee j KLE, tee TTR Vy | WV h ke Wi." ics | KM an ea a v \y ' i 7 XN a yj \} \ iy iy yy ; NY 7 Hh is \ } ma \ q Z 4 eel. 1 4 y;) My a iY © G \\ f Woot See 7 \ \ 4 © Hh i V4 sae = : i Al A q Mi | I Kt i : iF i \\ i q \) / Wye Lp AN SQA IRSA = MW J 77 + eee y fl Z © [eat Y), Y Secrion Loonine for'o At Frame No. 39. fs"6.38 Slee/ Screen SECTION AT SLUICE GATES. RT VON. EE ee ISL Ae es Co. Section orf FLoatinc Dock ror Orecon Dry Dock ~ La "Lag Bolt 313 where the engineers have ful control of all suction valves, The dock was successfully launched in July last and placed in service late in August. It will be berthed along- side of the plant of the Willamette Iron & Steel Works in North Portland, with whom the Oregon Dry Dock Co. has made arrangements for the use of its tracks, <air tools, traveling cranes and other faciities for expeditiously executing repair work on a vessel in dock. DIPPER DREDGE FOR MON- TREAL CONTRACTORS, The Vulcan Steam Shovel Co,, Eo- ledo, have recently built a 1%4-cu. yd. dipper dredge for Laurin & Leitch, No. 5 Beaver Hall Square, Montreal, Que. The new dredge is at present being used to dredge a channel for the in- take pipe to the crib that is being built in connection with the city of Mon- treal water works. The hull as 80. tt. Jonge by 40 42 wide and 7 ft. deep, and was buit on the ground after plans furnished by the manufacturers of the machinery. The main engines are double 10 in. x 12 in, piston valve, reversible, without links, the valves being so set as to give maximum efficiency in the go-ahead po- sition. The crank shaft is of hammered iron, and the pinion is of cast steel with cut teeth. : The hoisting gear is cast steel with cut teeth. The hoist drum is of cast iron, brass bushed. It runs loose on shaft and has wide-faced flanges rivet- ed to each end for friction and lower- ing brake bands. The drum has fin- ished grooves for the cable. The hoist friction is of the outside band type, wood lined and controlled by a steam ram operated by a _ hand lever at the engineer's stand. The lowering brake is also of the out- side band type, wood lined, and is controlled by means of a foot tread'e at the engineer's stand. The drum shaft is of hammered iron supported in strong cast iron babbitted bear- ings with adjustable caps. The swinging engines are 8 in. x 9 in. duplex, slide valve, reversible, with the bed cast in one piece. The crank is forged and the crank pin and crosy~ head pin bearings are of bronze. The swinging engine pinions are of forged steel with cut teeth. The intermediate gear is of cast steel with cut teeth. Swinging gear is of cast steel, with cut teeth and is riveted to drum. Swing- ing drum is of cast iron running loose on. shaft and has finished grooves for cable. The backing gear is of cast steel with