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 . required. This figure calls for 3 inches center to center ofrivets. The holes are punched into the sheet and drilled intothe foot by jigs. There should be no difficulty in gettingthese holes to match up properly when they are ready to be At X is shown a two-rivet stay which works in to excellentadvantage. These T irons are stayed to the side of the boilerwith rods which vary in -diameter from i inch to iH inches. Fig. 69 shows a
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 . required. This figure calls for 3 inches center to center ofrivets. The holes are punched into the sheet and drilled intothe foot by jigs. There should be no difficulty in gettingthese holes to match up properly when they are ready to be At X is shown a two-rivet stay which works in to excellentadvantage. These T irons are stayed to the side of the boilerwith rods which vary in -diameter from i inch to iH inches. Fig. 69 shows a ij4-inch rod. The head H of these rodsis made in proportion to the body of the rod, so as to givea uniform strength throughout. Also, the diameter of therod varies with the diameter and number of rivets which therod must support, and the diameter of the bolt must be madein keeping with the strength of the rod. In some shops thesethings are all nicely worked out and good drawings are athand for these details; but in other shops they depend entirelyupon the good judgme»t of the boiler maker. In this case,the boiler maker must be careful that he does not get one.
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Keywords: ., bookcentury1900, bookdecade1900, bookidl, booksubjectsteamboilers
