Pressed steel product for year 1907. . F -General Vie* S and Spe ... ., |fl |f> ^.^ ^^ ^ ^^ rious rrn Is through which third n»« ;- ,i,„ ™ , , • Jteel Bathtub. . ! . ,. V the :^;^^^,,, othe jlh SfajS JE Ir I for rolling out the wrinkles from the SEAMLESS STEEL A T H T U COMPANT, DETROIT, M I C H I G A U. S- A. drawn shapes and at the same time setting the metal soas to prevent distortion resulting from heating while theporcelain is being applied This machine weighs about 350 000 pounds. The Drawing Operations The three presses are shown in Fig. 1, where speci-mens of the work in the various
Pressed steel product for year 1907. . F -General Vie* S and Spe ... ., |fl |f> ^.^ ^^ ^ ^^ rious rrn Is through which third n»« ;- ,i,„ ™ , , • Jteel Bathtub. . ! . ,. V the :^;^^^,,, othe jlh SfajS JE Ir I for rolling out the wrinkles from the SEAMLESS STEEL A T H T U COMPANT, DETROIT, M I C H I G A U. S- A. drawn shapes and at the same time setting the metal soas to prevent distortion resulting from heating while theporcelain is being applied This machine weighs about 350 000 pounds. The Drawing Operations The three presses are shown in Fig. 1, where speci-mens of the work in the various stages of process are alsoshown, The shi which are of No, 11 soft steel, 00 in. wide and 78 in, long, are first taken to a small rotary shearand trimmed to a slightly elliptical form. A crude oillubricant is then applied to the outer edge of the surface. Figure a—One of the DrjAing Pn u *, Showing the Arrang-rr-nt ofDies Used for the Final Drawing Operation. and they are ready for the first rough drawing operation,appearing as the one shown in the foreground of Pig. IThe firsl drawing produces the oval cup-shaped form>wn in the right of the foreground of Pig 1. In thisillustration the proper dies for this operation are shown inposition on the middle machine of the group. The first form, after being annealed, is then putthrough a process of inverted redrawing which produithe final irregular shape of the finished tub and its roll-shaped rim. The machine shown in Pig 2 illustrates theform of dies used in this operation. This illustrationshows the dies as they appear upon the completion of thefinal drawing, a finished tub, just taken from the press,being shown in the hands of the operators on the right ofthe picture. The tub i> shown in an inverted position,which is as it leaves the press. Projecting upward fromt he top of die A w
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Keywords: ., bookcentury1900, bookdecade1900, booksubje, booksubjectdivision22
