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Hand Forging by Thomas F. Googerty

HAND FORGING, Spirals, spindle-shaped, twists, round, stock, formed, hand, hammer, anvil, embellishments, grille, finials, tendrils, foliated, uniform, spacing, soft steel, hand hammer, taper, point, measured, striking, rolled, coil, overlap, illustration, tongs
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90 HAND-FORGING Spirals.—In Fig. 52 are shown a number of spindle-shaped spiral twists made from round stock and formed by hand with the aid of the hammer and anvil. Spirals of this kind may be used as embellishments in grille work, as finials, or as the tendrils required in some foliated designs. The method of forming these spirals is very simple. The main thing in working them up is to have the twists true and uniform in spacing. In forming a spiral a piece of 1/4-in. round soft steel is first heated on one end, and a considerable part of its length is drawn out with the hand hammer, giving it a long taper to a point at the end. The amount of stock required for the spiral is found, then measured from the point along the bar, bending it at right angles. About an inch of the point is also bent at right angles. The part of the bar that is to be formed into spiral shape is now heated. Starting at the point, it is rolled up by striking it with the hand hammer until one-half of the bar is coiled. The other half of the bar is now heated, and, starting at the corner of the bend, the rest of the bar is rolled into a coil until it overlaps the first coil. The illustration in Fig. 53 fully shows at A the method employed in this operation. The entire piece is now heated, and, catching the point and the stem with a pair of tongs, the coils are

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