Transactions . utes,equivalent to 960 or 1,000 tons per hour. It is a regular occur-rence to teem 750 tons per hour down one spout, and this quantitycould no doubt be increased if larger wagons or trucks were in the double staithes (Fig. 31), they are easily and regularlyteeming 1,500 tons in the hour, and a fair-sized boat may beloaded and despatched in 0 hours or less, including plenty of timefor trimming the hatches. As an illustration, on July 7th, 1899,the screw-steamer Titania, a self-trimmer, was loaded with6,000 tons in 10 hours 35 minutes, although a delay of 30 minutesoccurred
Transactions . utes,equivalent to 960 or 1,000 tons per hour. It is a regular occur-rence to teem 750 tons per hour down one spout, and this quantitycould no doubt be increased if larger wagons or trucks were in the double staithes (Fig. 31), they are easily and regularlyteeming 1,500 tons in the hour, and a fair-sized boat may beloaded and despatched in 0 hours or less, including plenty of timefor trimming the hatches. As an illustration, on July 7th, 1899,the screw-steamer Titania, a self-trimmer, was loaded with6,000 tons in 10 hours 35 minutes, although a delay of 30 minutesoccurred, owing to an accident to one of the loaded wagons. In the Xanainio plant, the cylinders working the tilting-dogarrangement on the full road are 6 inches in diameter, the pairworking the arrangement on the empty way are 3 inches indiameter, and the little cylinder which gives the wagon impetus-and sends it forward off the traversing table has a diameter of. COAL-SHIPMEXT AND THE LAYING-OUT OF STAITHE HEADS. 159. > - 5 E z, a In w 160 COAL-SHIPMENT AND THE LAYING-OUT OF STAITHE HEADS. 2 inches. Special valves have been designed to work these cylin-ders (Fig. 5, Plate XXIX.), which take the place of the ordinaryslide-valve in common use on most engines for regulating theadmission and release of steam in the cylinder. Pipes connect to either end of the valve, with ports or branchesat either end of the cylinder, and these pipes take the place of theusual ports or steam-passages in a steam-engine cylinder. Theaction of the valve admits live steam to one end, whilst theother is open to the atmosphere for exhaust steam, as may beseen from the diagram. The valve is of piston form, and isof constant equilibrium; for slow-working piston speed, asis always the case with steam rams or pistons, it can be placed at adistance from the cylinder under direct control of the thus has the four or five valves actuating the various rams orpistons concentrated in one spot, side by sid
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Keywords: ., bookcentury1800, booksubjectmechan, booksubjectmineralindustries
