Hand-forging and wrought-iron ornamental work by Googerty Thomas Francis 1865-

Author:Googerty, Thomas Francis, 1865-
Language: eng
Format: epub
Tags: Forging, Ironwork
Publisher: Chicago, Popular mechanics company
Published: 1911-03-25T05:00:00+00:00

Fig. 55. Method of Forging the Bulb

top four pieces placed on the inside of the rods. A strong wire is twisted around them, binding the whole firmly. The weld is now made at the top, welding the small rods to the heavy piece of iron on the end. In making this weld some welding-flux must be used. The rods are welded directly on their ends. So the heat must be taken on the heavy piece first, gradually pushing the pieces a little farther into the fire until the heat reaches the end of the small rods. The work, while raising the heat, is held with a pair of round-nose tongs with a ring on the end of handles. The tongs should fit and hold the pieces

firmly. In case the piece being heated at the end of the rods should want to drop out, it may be held in place by using a poker that has a short right angle bent at its end, and the rods may be tapped with the poker to stick them enough to hold fast before taking the piece to the anvil. After the end is welded it is drawn out as shown at C. The bottom piece is now inserted and welded as at D. The entire piece is now heated uniformly to a yellow heat, one end is caught in a vise, and with a monkey wrench on the other end the rods are twisted to the right as much as they will stand without danger of breaking. At the same time they are tapped on the end in order to help the rods twist. The piece will now appear as at E. It will be necessary to take more than one heat to twist the rods as much as they will stand. When this is done the entire piece is heated again and twisted to the left. At the same time it is tapped on the end with a hammer to help open the bulb as shown at F. Two of the rods are now spread a little to let the three pieces of round iron drop out. These were kept on the inside to keep the small rods in shape while welding and twisting them into shape. The lug at the top is now drawn a little more pointed and the bottom end swaged % in. round. A thread is to be cut on this end. The rods in the bulb are trued by heating and catching them in a vise in

FORGING A BULB

97

a vertical position. A long, slim punch is used to force any rod into its proper position. If a rod needs moving a little to correct its shape, it is done by setting the punch

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