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Scientific American, Vol. 63, No. 1 (July 1890) (1890)

leaf 4

An illustration from Scientific American, Vol. 63, No. 1 (July 1890), 1890, leaf 4
f cast steel weighs 135 tons, lower end is a cord passing over pulleys beneath the be thrown open only by pressing down on the catch, it and the barrel is 40 ft. long. Its caliber is 1^3^ in. The wagon body to engagement with a cam so sup|)orted is utterly impossible for it to be opened when ob-… … by the spiral spring to their normal REVOLVER. BOSS' REIN HOLDER. © 1890 SCIENTIFIC AMERICAN, INC.

Munn · Contained · Spring · Patents · Scientific American · Illustrated · Plate glass · Express money · India rubber · Fire crackers · Hot water · Spring water · Friction disk · Gas engine · River water

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