This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1913 Excerpt: ...simpler to make end contact only with the left hand piece, and hold it vertical while it was struck with the hammer on the cold end, making a jump weld. Corner Welding The lap weld corner is stiffer than a bent corner. Rocker plates for the crooked framed sills of wood for agricultural machines, cars, wagons, carriages ...
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1913 Excerpt: ...simpler to make end contact only with the left hand piece, and hold it vertical while it was struck with the hammer on the cold end, making a jump weld. Corner Welding The lap weld corner is stiffer than a bent corner. Rocker plates for the crooked framed sills of wood for agricultural machines, cars, wagons, carriages and the like are better if the iron fiber is crossed by such a lap and scarf weld, as is shown in Fig. 3. When the corner is to be finished more or less than a right angle the scarf and lap should be made accordingly. When tensile strength only is required of a weld, care should be taken to keep the fiber of the stock parallel with the direction of strain. But if transverse stress will be applied to a weld the crossed fiber which adds to the rigidity of the piece is permitted. This does not apply to steel forging as emphatically as it does to wrought iron. A fillet welded inside, or a "dutchman" welded on the outside, to build up a forged corner stiffens more and is often a more economical way to finish such pieces than with stock all of one piece, which makes the so-called solid forging. FAGOT, OR PILE WELDING A good opportunity to study welding conditions is given in Fig. 4. Only that portion of the piece which is seen in the pile or fagot on the anvil is to be welded. The rest of the bar serves as a handle or porter bar that is cut off after the weld is made and the forging is finished. As the piece is of good size and convenient to hold it is not difficult to study the conditions that must be controlled while working with this piece. There are only three things to be learned about this work, --The proper heat condition must be produced in the piece. It must then be placed and kept in the right position. Then it must be properly h...
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