. Forging of iron and steel, a text book for the use of students in colleges, secondary schools and the shop . Fie. 18 Forges range in sizefrom a small por-table iron forge tothe large, station-ary brick are of twotypes: the up-draft,and the the up-draftforge, the smokeand gases pass upa chimney by nat-ural draft (Figs. 17and 18). Fig. 17shows a portableforge having ablower operated bya crank. Fig. 18 shows a forge that is similar, exceptthat the blower is worked by a handle which operatesa ratchet and wheel. Fig. 19 shows the old-stylebrick forge which is blown by a
. Forging of iron and steel, a text book for the use of students in colleges, secondary schools and the shop . Fie. 18 Forges range in sizefrom a small por-table iron forge tothe large, station-ary brick are of twotypes: the up-draft,and the the up-draftforge, the smokeand gases pass upa chimney by nat-ural draft (Figs. 17and 18). Fig. 17shows a portableforge having ablower operated bya crank. Fig. 18 shows a forge that is similar, exceptthat the blower is worked by a handle which operatesa ratchet and wheel. Fig. 19 shows the old-stylebrick forge which is blown by a bellows. In the down-draft forge, thesmoke and gasare sucked ordrawn underthe hood anddownward by asuction 20 showsone of theseveral typesof this downwarddraft forge is. 36 FORGING OF IRON AND STEEL supplied with blast from a power-driven fan or blower,while a second blower is used to suck the smoke andgases under the hood and down and out of the forges are the most desirable for schools orshops where several forges are used at one time, asthey act to ventilate the shop by carrying off the smoke
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Keywords: ., bookcentury1900, bookdecade1910, bookpublishernewyo, bookyear1915
