. Railway master mechanic [microform] . Fig. of 4% in., being faced off to tighten on 3% , thus adapting it to use for any size ofrocker. The iron used is 8x5 in. The barrel of therocker is rounded and the stub, 3. (fig. 1), is heatedand then driven down to the position, 4, shown inFig. 1 by dotted lines. A fuller is then used, at then the tapered tool Xo. 6 (fig. 2>, which leaves the arm square with the barrel. The boss is thenheated and the annular tool (see bottom of fig. _) isused to trim off the surplus from the sides of thearms. One great advantage with this me
. Railway master mechanic [microform] . Fig. of 4% in., being faced off to tighten on 3% , thus adapting it to use for any size ofrocker. The iron used is 8x5 in. The barrel of therocker is rounded and the stub, 3. (fig. 1), is heatedand then driven down to the position, 4, shown inFig. 1 by dotted lines. A fuller is then used, at then the tapered tool Xo. 6 (fig. 2>, which leaves the arm square with the barrel. The boss is thenheated and the annular tool (see bottom of fig. _) isused to trim off the surplus from the sides of thearms. One great advantage with this method isthat it permits of placing the work at an angle, ad-mitting of its being used under a small steam hammer. We understand that there is a saving of about 50per cent in making rockers by this method by rea-son of doing away with the sledging or hand labor;. Fig. the main advantage claimed is that the rockersare made without a weld or a bend under a smallhammer. The practice frequently seen is to eitherweld the arms on or to forge the rockers solid andbend them with sledges. A good weld is not alwayssurely at command and even if so it involves handwork: and on the other hand bending the armsdraws or pulls the iron on the outside and crowds iton the inside of the bend. By use of the angle toolshown these difficulties are largely eliminated. ALLEN=MORR!SON COMPOSITION BRAKE SHOEFOR STEAM ROADS. In our issue of June, 1898, we gave a descriptionof the Allen-Morrison brake shoe as designed forelevated and street cars. Weshow now a view of the sameshoe adapted especially forsteam road work. The samecomposition is used, but theform of the shell is chilled pieces are employed as shown, the chillsreaching to within % inch ofthe outside of the shoe. Theshell is poured around the the composition is after-wards pressed i
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Keywords: ., bookcentury1800, bookdecade1890, bookpublishernewyo, bookyear1895
