g through the head- cap is removed and the lever pressed downwardly. stocks spindles are fitted carrying sandpaper disks. This operation causes the hammer to be forcibly driven The spindles are driven by the pulleys and belts shown in the illustration. The wheel to be finished is placed against the… … wheel has been sufficiently smoothed, the hand-lever is avoid the expense caused by an unnecessary pressure. SING'S FIRE-EXTINGUISHEB. again operated, the disks moved apart, and the wheel Much difficulty has been experienced with the gov- removed. ernors in use, owing to the fact that their…
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