. Forging of iron and steel, a text book for the use of students in colleges, secondary schools and the shop . FUEL AND FIRES 55 which is being heated. An important use of this fireis in welding steel to iron. QUESTIONS FOR REVIEW Why is the selection of a fuel important? What is the mostcommon fuel for forging? What are the tests for good coal?What do white and brown spots in coal indicate? What givesthe blue flame sometimes seen in a forge fire? Why? Whatdoes the color of the coke indicate? What does slate in thecoal pile do? What does a short-lived fire indicate? Is char-coal a good fuel? W
. Forging of iron and steel, a text book for the use of students in colleges, secondary schools and the shop . FUEL AND FIRES 55 which is being heated. An important use of this fireis in welding steel to iron. QUESTIONS FOR REVIEW Why is the selection of a fuel important? What is the mostcommon fuel for forging? What are the tests for good coal?What do white and brown spots in coal indicate? What givesthe blue flame sometimes seen in a forge fire? Why? Whatdoes the color of the coke indicate? What does slate in thecoal pile do? What does a short-lived fire indicate? Is char-coal a good fuel? Why? How many types of fires are there?What is an oxidizing fire? What is a reducing fire? Describehow each type of fire is built. Which is the best for generaluse? CHAPTER V DRAWING DOWN AND UPSETTING. In this chapter, drawing down and upsetting, thetwo fundamental operations of forging, are is scarcely a forging of any description that does not involve one or bothof these operations. A dis-cussion of these processes,however, must be precededby instructions: How to standat the anvil, and how tohold the hammer and at the Anvil. —The smith should stand erect(Fig. 82) about 12 behindthe anvil. His feet should beat right angles, the heels notover six inches apart, withthe left foot nearly oppositethe center of the anvil. Thiswill place the body almostopposite the heel of the anviland the face turned a littletowards the horn. The tongsshould be carefully selectedso that they will grip tightly. They should beheld firmly in the left hand,1 straight out from thecenter of the anvil, and at such a height that the work 1 A right-handed smith is being considered in all these descrip-tions.
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Keywords: ., bookcentury1900, bookdecade1910, bookpublishernewyo, bookyear1915
