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It has been found more economically efficient than the single-ended form, by as much as ten per cent, in the writer's own experience. It is generally adopted for engines of large power, but for small power is inconvenient, owing to its occupying more room lengthwise in the vessel, and also involving two stokeholds and therefore more supervision.
"Singing 'I'm afraid to go home in the dark," interposed the India-rubber Man dryly. He got down off the table and stretched his arms. "Well, I shan't be sorry to get some sleep." "Sleep!" echoed Thorogood. "You ought to see the stokers' mess-deck. The watch-off have just come up from below after sixteen hours in the stokeholds.
Shipowners are forced to supply more boats, wireless instalment is required on all ships; the idle rich are led to think less of saving useless time and more of saving lives, their own and those of men in the stokeholds. In a sense those who perish may be said to be unwilling martyrs who by their deaths purchase some advantage for others.
They're in the smoke-room, the ladies' boodwor, the lib'ry, the drorin'-room, dinin' saloon, the officers' quarters, and why, some of the men is even down in the stokeholds. Oh yes, we took 'em all aboard, of course. But I expect we shall thin 'em out a good bit presently.
And talking of stokeholds, firemen, and trimmers, men whose heavy labour has not a single redeeming feature; which is unhealthy, uninspiring, arduous, without the reward of personal pride in it; sheer, hard, brutalising toil, belonging neither to earth nor sea, I greet with joy the advent for marine purposes of the internal combustion engine.
And certainly when, as the liner passed Daunt Rock lightship shortly after nine o'clock on the Sunday morning following her departure from Liverpool, and the moment was carefully noted by chronometer, the omens were all most favourable for the weather was fine, though cold, with a light northerly wind and smooth water, and with her turbines running at top speed the chief engineer reported that the hands in the stokeholds were keeping a full head of steam without difficulty.
blinked the glittering searchlight, and anon in the stokeholds of the end ship of the lee line there was the stokehold equivalent for weeping and wailing and the gnashing of teeth.... For a couple of hours the Fleet surged onwards in silence and unchanged formation. The swift Light Cruisers had overtaken the advancing Battle-fleet, and vanished like wraiths into the haze ahead.
With the ordinary proportions of locomotive practice the efficiency can be made equal to the best marine boiler when working under the water pressure usual in locomotives, say from 3 in. to 4 in., including funnel draught. It has fallen to the lot of the writer to fit three vessels recently with boilers worked under pressure in closed stokeholds.
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