Fig. 13.—Elevation of Pole Scaffold
The butt-ends are embedded about 2 feet in the ground, which affords some resistance to overturning. If they cannot be embedded, they should be placed on end in barrels filled with earth tightly rammed. As the building rises additional poles are added, being lashed to the standards already erected.
If the standard is a single pole, the second pole, having a lap of 10 or 15 feet, stands upon a putlog placed close to the first pole for that purpose ([fig. 14]).
The inner end of the putlog is securely fastened down to the scaffold or inserted into the building.
If the standard is double, the rising pole is placed upon the top end of the puncheon, and afterwards others are placed on end upon the lowest free end of the standards already fixed.
Fig. 14.—Method of Fixing Rising Standard
As the standards rise, they are spliced or ‘married’ together with band ties.
At a height of 5 feet, this distance being the greatest at which a man can work with ease, a ledger is tied across the standards to form a support for the working platform.
Where a single pole is insufficient in length to form a continuous ledger, two are joined in one of three ways.