. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . into position. Under no circumstancesshould the knuckle patch be less than12 inches from the crown sheet. Weld the horizontal seam first, thentack weld the flanged sheet to thewrapper sheet. Remove all strut boltsand weld intermediate spaces, workingfrom the bottom on either side of thepatch upward, finishing at the top. The method indicated in Fig. 7 is to tije iVHt of aotn, vcut, of the patch before the opposite sideis tack welded, so as to allow the patchto draw in one direction. After thi
. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . into position. Under no circumstancesshould the knuckle patch be less than12 inches from the crown sheet. Weld the horizontal seam first, thentack weld the flanged sheet to thewrapper sheet. Remove all strut boltsand weld intermediate spaces, workingfrom the bottom on either side of thepatch upward, finishing at the top. The method indicated in Fig. 7 is to tije iVHt of aotn, vcut, of the patch before the opposite sideis tack welded, so as to allow the patchto draw in one direction. After thishas been completed, allow it to coolbefore starting on the opposite so doing there will be only one con-traction of the patch. All weldingshould be performed from the bottomupward. Should the defective portionof the side sheet extend down to the. FIG. 6. THE KNUCKLEPATCH IN THE FIREBOX. FIG. 7. HOW CRACKS AT STAY-BOLT HOLES ARE WELDED. FIG. 8. PATCHING AROUND DEFECTIVE STAYBOLTS. PATCH IN SIDE SHEET. seams per lineal foot is 90 cents forlabor, material and current. Preparing Half Side and Door SheetFOR Welding The sheet should be bolted to themud ring after it has been properlybeveled and fitted in place. Stayboltsmay be applied, except the rows adja-cent to the seam which is to be horizontal seams should be heldin place with strut bolts and tackwelded every 12 or 14 inches. Thenweld intermediate spaces the center space to the spaces ateither end. Vertical seams should betack welded similar to horizontal seams. be used to repair cracks at stayboltholes in firebox sheets, where not morethan 6 sunflowers are necessary to com-plete repairs, and not more than 4 sun-flowers will be joined together. Thissjstem may be used in main shop gen-eral repairs, sunflowers not to exceed3 inches in diameter.
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Keywords: ., bookcentury1900, bookdecade1900, bookidrailwaylocom, bookyear1901
