workmen being recessed to receive a spring coiled around the much out of perpendicular, the flame will be automa- climbing to the scaffold floor. The plank-supporting pintle, one end of this spring being carried upward and tically extinguished, is illustrated herewith, and has block has slots at… … as shown in dotted lines in the sectional view. The engineer, twenty-six years old, whose left upper jaw SIXSMITH’S SCAFFOLD STANDARD. lower disk, to which the pendulum is rigidly attached, was diseased. After removal of the sequestrum, which may have top spurs or pins to enter and steady a plank…
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