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  • Each of the bottom rolls carries at its end a large spur-wheel, these spur-wheels, which are on opposite sides of the machine, each gearing into a pinion on a shaft which runs from end to end below the rolls, and which is itself geared to the shaft carrying the belt pulleys, as shown.

    Scientific American Supplement, No. 324, March 18, 1882

  • On the spur-wheel shaft was a friction-gear, driving the hoisting-reel; this reel was mounted on sliding blocks, so that hoisting was done by putting it in gear, the empty load being dropped by a friction-band.

    Scientific American Supplement, No. 455, September 20, 1884

  • There are two ropes from the wheel-shaft to a counter-shaft, and four ropes to the fly-wheel shaft, on which is the pinion driving the spur-wheel attached to the pitman of the pump-bob.

    Scientific American Supplement, No. 455, September 20, 1884

  • The water-wheel moved only in one direction; the pinion on the wheel-shaft drove the spur-wheel, to which the pitman of the pump-bob was attached.

    Scientific American Supplement, No. 455, September 20, 1884

  • And in this modified form it applies equally well to the original arrangement of Ferguson's paradox, if we abandon the artificial distinction between "absolute" and "relative" rotations of the planet-wheels, and regard a spur-wheel, like any other, as rotating on its axis when it turns in its bearings; the action of the device shown in Fig. 18 being thus explained by saying that the wheel

    Scientific American Supplement, No. 441, June 14, 1884.

  • A spur-wheel, 6½in. in diameter, moved by a double cylinder-engine ... turns the turret, guns and all, a rod connected with the running gear of the engine enabling the runner to control the aim.

    The American Iron-Clad Vessels


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