Locomotive boiler construction; a practical treatise for boilermakers, boiler users and inspectors .. . The Berry Collard Co. Figure 282Tool for calking tubes. and this not only resists a thrust in one direction, but inboth. After the sheet has been expanded out against thecopper ring and also at R the end of the tube F is calkedover. This is very nicely and rapidly done by a com-pressed air hammer, Fig. 279. The calking tool, Fig. 282, 284 Expanding tubes. Has a semi-circular nose N which fits over the tube atF and a leg L which enters the tube and rests against theside wall. Fig. 283 is a cr
Locomotive boiler construction; a practical treatise for boilermakers, boiler users and inspectors .. . The Berry Collard Co. Figure 282Tool for calking tubes. and this not only resists a thrust in one direction, but inboth. After the sheet has been expanded out against thecopper ring and also at R the end of the tube F is calkedover. This is very nicely and rapidly done by a com-pressed air hammer, Fig. 279. The calking tool, Fig. 282, 284 Expanding tubes. Has a semi-circular nose N which fits over the tube atF and a leg L which enters the tube and rests against theside wall. Fig. 283 is a cross section of an expanding tool is driven by a ratchet handle H and can be usedin corners where only a slight motion of the handle canbe obtained. It is fitted with a taper pin P, which ex-. Tool for expanding tubes in the tubesheets. u pands the three rollers R. G is a guide which serves tokeep the expanding tool straight. As P is forced in, therollers are pushed out in order to accommodate a largerdiameter. A somewhat different construction of tube is illus-trated in Fig. 283. The end C is made of copper andis sweated or brazed on the end of the copper along theline J. The thread portion T of the tube is screwed into 285 Construction of fire tubes. the sheet S and the tube is flanged over at F as in theprevious case. The general construction of the fire tubes is shownin Fig. 284. S is the fire box sheet and T is the outsidesheet. The tubes are swaged down on the fire end and ;-—-^ ,-? w>^^^-- jl
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Keywords: ., bookcentury1900, bookdecade1910, bookidlocomotivebo, bookyear1912
