. Building and repairing railways . rned up flatwise, andis anchored by a rod bolted to the rail; this rodpasses through the yoke key, and a nut screwedtight against the key and fastened by a nut cut represents the point and wing rails con-nected by a notch, though they can be planedstraight as with the Strom frog if desired. Withthe Strom frog the main point of difference isthat the clamp or yoke is bent edgewise and theends of the clamps are forged to fit the rail sec-tions, thus doing away with the yoke key; theyokes are driven on tight, and anchored by stayrods which pass over the
. Building and repairing railways . rned up flatwise, andis anchored by a rod bolted to the rail; this rodpasses through the yoke key, and a nut screwedtight against the key and fastened by a nut cut represents the point and wing rails con-nected by a notch, though they can be planedstraight as with the Strom frog if desired. Withthe Strom frog the main point of difference isthat the clamp or yoke is bent edgewise and theends of the clamps are forged to fit the rail sec-tions, thus doing away with the yoke key; theyokes are driven on tight, and anchored by stayrods which pass over the end of the wing railsand through the yokes. Cotters are placed inthe stay rods to prevent the yokes or clampsfrom slipping. Fool guards are required at all frogs, and guardmils to prevent section and train men from get-ting their feet fastened so they cannot escapefrom approaching trains. Fig. 828 illustrates a 378 BUILDING AND REPAIRING RAILWAYS. frog having wooden foot guards, and Fig. 329illustrates the use of iron foot Fig. 328. FROG WITH WOOD FOOT GUARDS.
Size: 2374px × 1053px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, booksubjectrailroa, bookyear1901
