Autonopedia

A

To make the Z or cranked bends, mark the ^5/8" square and 1^1/2" flat as described on page 78, paragraph (b) allowing half the thickness of the metal for each bend.

At a NEAR WELDING heat bend the bar over the rounded edge of anvil with the mark on the side of the bar beyond the edge of the anvil, as shown here -

B

Take another heat, cool out the end and square the corner by laying the long part of the bar on the anvil face and striking the short end, so -

This will upset the metal slightly and produce a sharp bend with the punch mark exactly in the middle of the side of the thickened corner.

C

Keep the metal from thickening by flattening the swelling on the side of the corner as you go.

D

Finish off by gripping in the vice with the inside corner about ^3/16 from the vice jaws and finally square the bend by hammering like this -

Do not drive the inside corner hard against the jaws or the sharp edge will cut it.

Make the other bend in the same way.

E

To make the U-bolt, mark off the ^1/2" round, using the same allowances.

Take a NEAR WELDING heat where the bar will be bent, quench to about " on either side of the punch mark and bend with a full radius over the anvil bick.

F

Lay it in a bottom swage and work up the corner like this -

G

In order to screw the ends, bend one side as shown to allow the die-stock to rotate.