Laying out for boiler makers and sheet metal workers; a practical treatise on the layout of boilers, stacks, tanks, pipes, elbows, and miscellaneous sheet metal work . FIG. 108. FIG. 101 (top). fig. 102 (cENTEr). FIG. IO4. FIG. 103. line DD; bisect the left half and draw the left side center line and also calls for the rivets spaced off center. Wc therefore EE; bisect the right side and draw the right side center line set the dividers by trial, and step off eighteen equal spaces in FF. The blueprint calls for seventy-two Ii-i6-inch diameter one quarter. Lay off each rivet midway between these
Laying out for boiler makers and sheet metal workers; a practical treatise on the layout of boilers, stacks, tanks, pipes, elbows, and miscellaneous sheet metal work . FIG. 108. FIG. 101 (top). fig. 102 (cENTEr). FIG. IO4. FIG. 103. line DD; bisect the left half and draw the left side center line and also calls for the rivets spaced off center. Wc therefore EE; bisect the right side and draw the right side center line set the dividers by trial, and step off eighteen equal spaces in FF. The blueprint calls for seventy-two Ii-i6-inch diameter one quarter. Lay off each rivet midway between these points. rivets for the front ring. This gives eighteen to each quarter, In a similar manner lay off eighteen rivets in the other three 92 LAYING OUT FOR BOILER AIAKERS quarters. The blueprint calls for forty-nine ii-i6-inch di-aineter rivets for the intermediate ring. These rivets are also10 be spaced off center on top. Set the dividers as near thepitch as possible, and step off these forty-nine spaces. As aclieck on the accuracy, the bottom space should come on theline DD, and the rivets should come in a similar position alongthe right and left side center lin
Size: 1442px × 1733px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, bookidl, booksubjectsteamboilers
