. Canadian Shipping and Marine Engineering January-December 1918. FIG. 3 DETAILS OF MAIN VALVES. tendant, while any interruption of thesupply due to a choked tube or faultyvalve can be instantly detected and thesight glass shows clearly which point isaffected. Two eight-feed lubricator boxes, 7, , are employed on this four-cylinderengine, and the reciprocating drive isobtained from the fuel-pump actuating which may be formed therein. Thecylinder covers and silencers are alsojacketed, and the circulating water issupplied by a reciprocating pump, 12,placed at one end of the bedplate andactu
. Canadian Shipping and Marine Engineering January-December 1918. FIG. 3 DETAILS OF MAIN VALVES. tendant, while any interruption of thesupply due to a choked tube or faultyvalve can be instantly detected and thesight glass shows clearly which point isaffected. Two eight-feed lubricator boxes, 7, , are employed on this four-cylinderengine, and the reciprocating drive isobtained from the fuel-pump actuating which may be formed therein. Thecylinder covers and silencers are alsojacketed, and the circulating water issupplied by a reciprocating pump, 12,placed at one end of the bedplate andactuated by an eccentric, 13, on thecrankshaft. The pump body is of cast iron linedwith brass and is provided with brass 40 MARINE ENGINEERING OF CANADA. non-return suction and delivery valves,spring-loaded escape valve and a largecast-iron air vessel. Access to thesuction valve is obtained by removingdoor 14, and to the delivery valve byremoving the air vessel. A bilge pump, 15, of the same size and design, isplaced at the other end of the bedplateand similarly operated. The bedplate is cast in one piece, withsuit-able flanges for bolting down to theseating in the ship, and is provided withmachined recesses to receive the mainbearing bushes. The main bearing caps, 16, Fig. 1, are readily accessible for re-moval, and when removed the bushes, 17,which are made eccentric to the shaft ontheir outer diameter, can easily beslipped from under the shaft withoutdisturbing any gear whatever. Thebushes are of Admiralty quality gun-metal with white metal lining. Crank Shaft and Rods The crankshaft is a solid forging ofSiemens-Martin steel and is machinedall over. Large balance-weights, 18, , are secured to the crank-webs, andthese not only g
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