Dodge, Mary Mapes, 1830-1905 · [New York : Scribner & Co.] · leaf 865
or-cycle engine, so as to in-crease the surface of the barrel. Of course, air- 540 GUNS THAT FIRE THEMSELVES [April, cooling is not as effective as water-cooling, butit is claimed for this gun, and for other machine-guns of the same class, that the barrel is suffi-ciently cooled for ordinary… … FIG. 3. THE LEWIS GUN, OPERATED BY GAS. machine-gun may be capable of firing many hun-dred shots per minute, it is seldom that such arate is kept up very long in battle. Usually, onlya few rounds are fired at a time and then thereis a pause, and there is plenty of time for thebarrel to cool. Once…
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