. The railroad and engineering journal . of the amount of work one of these offi-ces may be called upon to do, it may be stated that in thefirst four months of its establishment, the Norfolk officedistributed 43 light-lists ; 95 hurricane pamphlets ; 2 re-ports on the use of oil to calm the waves ; 70 day-marks ;576 pilot-charts; 832 supplements to pilot-charts; 1,864notices to mariners ; 14 coast survey notices ; 11 monthlyweather reviews and g cyclone charts. The Officer incharge reported 11 storms ; i fog ; i water spout ; 26wrecks ; 10 buoys adrift and 8 light-ships adrift. Hevisited 132 d
. The railroad and engineering journal . of the amount of work one of these offi-ces may be called upon to do, it may be stated that in thefirst four months of its establishment, the Norfolk officedistributed 43 light-lists ; 95 hurricane pamphlets ; 2 re-ports on the use of oil to calm the waves ; 70 day-marks ;576 pilot-charts; 832 supplements to pilot-charts; 1,864notices to mariners ; 14 coast survey notices ; 11 monthlyweather reviews and g cyclone charts. The Officer incharge reported 11 storms ; i fog ; i water spout ; 26wrecks ; 10 buoys adrift and 8 light-ships adrift. Hevisited 132 different vessels ; adjusted 3 barometers ; cor-rected 120 charts and 3 day-marks, and gave informationof different kinds to 3,834 persons. A COMPOUND MARINE ENGINE. The accompanying illustrations, taken Uom Incfustries,show a very remarkable set of compound engines latelycompleted for the Italian armor-clad ship, Riiggiero diLaura, at the shops of Maudslay, Sons & Field, of Lon-don, England, from the designs of Mr. Charles Sell, the. head of the Engineering Department of that firm. Theengines are of the three-cylinder compound type, having ahigh-pressure cylinder 61 in. in diameter and two low-pressure cylinders 80 in. in diameter each ; the stroke of all being 39 in. As shown in the large engraving, thehigh-pressure cyliniler is set in the middle, with a low-pressure cylinder on each side. The engines are uprightand act directly upon the shaft, the cranks being set 120apart. The framework is entirely of steel and is thor-oughly braced together, so as to secure the greatest possi-ble rigidity, combined with lightness, and in this way ithas been found possible to obtain great power with a verymoderate weight. With the exception of the cylinders,steel and gun-metal are the only materials entering intothe construction of the engines. The valve-gear of these engines is of the Toy pattern,fitted on the sling-link plan, in which the sliding block isreplaced by an oscillating link. Th
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectrailroa, bookyear1887
