Autonopedia

A

From a piece of 3/8" round cut off 6", and bend it to a U shape as in Lesson 2.

It may help a beginner who is inexperienced in fire welding to upset, or thicken, the end slightly before bending the U. (See Lessons 13 and 24.)

At a NEAR WELDING heat, draw out the scarfs cornerwise,

like this -

B

Bend each end towards the other until the scarfs overlap, then set together ready to weld.

When joining or building up a chain, the completed links must be threaded over the unwelded link before setting the scarfs together.

Clean the fire.

Take a FULL WELDING heat and, with light blows, weld on top of the anvil, like this -

C

Work up on the bick, leaving the welds slightly larger than the original diameter of metal. This is shown in the weld on the top of the finished link hanging next to the tongs.

D

Here are three finished chain links.