Table 129.-WEIGHT OF LEAD REQUIRED FOR THE JOINTS OF CAST-Iron SOCKET-PIPES.

Table 130.-APPROXIMATE WEIGHT OF I FOOT IN LENGTH OF BRASS TUBES BY OUTSIDE DIAMETER, AND ALSO OF I FOOT IN LENGTH OF COPPER TUBES BY INSIDE DIAMETER.

THICKNESS IN PARTS OF AN INCH, AND ALSO by the NEW STANDARD WIRE-GAUGE.

Table 131.-WEIGHT OF 12 INCHES IN LENGTH OF CAST-IRON CYLINDERS.

Table 131 continued.-WEIGHT OF TWELVE INCHES IN LENGTH OF CAST-IRON CYLINDERS.

Thick

ness

in Inches.

123314

TH12

141884

Table 132.-WEIGHT OF HALF A CIRCLE OF CAST-IRON-
DEPTH HALF THE DIAMETER.

Table 133.-WEIGHT OF SMALL CAST-IRON SPUR WHEELS, OR

CHANGE-WHEELS.

Table 134.-WEIGHT OF CIRCULAR AND SQUARE CAST-IRON PLATES.