Transactions . There are three full lines branch-ing off from a single track at the end of the tunnel, the grade ofthe full roads on to the staithe head dipping 1 in 40, then 1 in 60 down thestaithe to a shortlength of curvelaid at 1 in 20,.and terminatingon to a self-act-ing turntable,whence a shortlength of emptyroad dips 1 in45 on to a con-tinuous-runningendless-chainelevator capableof raising fourempty wagonson the road afterreaching thesummit falls 1in 55, and thelatter half 1 in72 to the bottomof the empty bay, from which point the wagons are hauled bylocomotive
Transactions . There are three full lines branch-ing off from a single track at the end of the tunnel, the grade ofthe full roads on to the staithe head dipping 1 in 40, then 1 in 60 down thestaithe to a shortlength of curvelaid at 1 in 20,.and terminatingon to a self-act-ing turntable,whence a shortlength of emptyroad dips 1 in45 on to a con-tinuous-runningendless-chainelevator capableof raising fourempty wagonson the road afterreaching thesummit falls 1in 55, and thelatter half 1 in72 to the bottomof the empty bay, from which point the wagons are hauled bylocomotive power, the track rising 1 in 75 and lastly 1 in 80-to the points at the mouth of the tunnel. (4) Cessnock Bock, Glasgow.—A crane of the movable loco-motive steam-coaling type (Fig. 51) has recently been erected atthis dock for the owners of the Allan Line, Limited, and was con-structed by Messrs. Alexander Chaplin & Company, of has a curved jib, so as to clear the side of their largest vessel;. Fig. 50.—Russell Coaling Crane, Harton CoalCompanys (Low) New Staithks (Tyne). COAL-SIIIPMEXT AXD THE LAYIXG-OT7T OF STAITHE HEADS. 217 the radius is 36 feet, and the gauge 12 feet; and it has beentested with a load of 23 tons. The height of the centre of thejib pulley is 51 feet above the quay level, and it is claimed to beone of the largest and most powerful cranes of the kind yet con-structed. The different motions of hoisting, slewing round, andtravelling, have each a separate set of double-cylinder engines,
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Keywords: ., bookcentury1800, booksubjectmechan, booksubjectmineralindustries
